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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
/*
** File: ptio.c
** Descritpion: Implemenation of I/O methods for pthreads
*/
#if defined(_PR_PTHREADS)
# if defined(_PR_POLL_WITH_SELECT)
# if !(defined(HPUX) && defined(_USE_BIG_FDS))
/* set fd limit for select(), before including system header files */
# define FD_SETSIZE (16 * 1024)
# endif
# endif
# include <pthread.h>
# include <string.h> /* for memset() */
# include <sys/types.h>
# include <dirent.h>
# include <fcntl.h>
# include <unistd.h>
# include <sys/socket.h>
# include <sys/stat.h>
# include <sys/uio.h>
# include <sys/file.h>
# include <sys/ioctl.h>
# if defined(DARWIN)
# include <sys/utsname.h> /* for uname */
# endif
# if defined(SOLARIS)
# include <sys/filio.h> /* to pick up FIONREAD */
# endif
# ifdef _PR_POLL_AVAILABLE
# include <poll.h>
# endif
# ifdef AIX
/* To pick up sysconf() */
# include <unistd.h>
# include <dlfcn.h> /* for dlopen */
# else
/* To pick up getrlimit() etc. */
# include <sys/time.h>
# include <sys/resource.h>
# endif
# ifdef SOLARIS
/*
* Define HAVE_SENDFILEV if the system has the sendfilev() system call.
* Code built this way won't run on a system without sendfilev().
* We can define HAVE_SENDFILEV by default when the minimum release
* of Solaris that NSPR supports has sendfilev().
*/
# ifdef HAVE_SENDFILEV
# include <sys/sendfile.h>
# define SOLARIS_SENDFILEV(a, b, c, d) sendfilev((a), (b), (c), (d))
# else
# include <dlfcn.h> /* for dlopen */
/*
* Match the definitions in <sys/sendfile.h>.
*/
typedef struct sendfilevec {
int sfv_fd; /* input fd */
uint_t sfv_flag; /* flags */
off_t sfv_off; /* offset to start reading from */
size_t sfv_len; /* amount of data */
} sendfilevec_t;
# define SFV_FD_SELF (-2)
/*
* extern ssize_t sendfilev(int, const struct sendfilevec *, int, size_t *);
*/
static ssize_t (*pt_solaris_sendfilev_fptr)() = NULL;
# define SOLARIS_SENDFILEV(a, b, c, d) \
(*pt_solaris_sendfilev_fptr)((a), (b), (c), (d))
# endif /* HAVE_SENDFILEV */
# endif /* SOLARIS */
/*
* The send_file() system call is available in AIX 4.3.2 or later.
* If this file is compiled on an older AIX system, it attempts to
* look up the send_file symbol at run time to determine whether
* we can use the faster PR_SendFile/PR_TransmitFile implementation based on
* send_file(). On AIX 4.3.2 or later, we can safely skip this
* runtime function dispatching and just use the send_file based
* implementation.
*/
# ifdef AIX
# ifdef SF_CLOSE
# define HAVE_SEND_FILE
# endif
# ifdef HAVE_SEND_FILE
# define AIX_SEND_FILE(a, b, c) send_file(a, b, c)
# else /* HAVE_SEND_FILE */
/*
* The following definitions match those in <sys/socket.h>
* on AIX 4.3.2.
*/
/*
* Structure for the send_file() system call
*/
struct sf_parms {
/* --------- header parms ---------- */
void* header_data; /* Input/Output. Points to header buf */
uint_t header_length; /* Input/Output. Length of the header */
/* --------- file parms ------------ */
int file_descriptor; /* Input. File descriptor of the file */
unsigned long long file_size; /* Output. Size of the file */
unsigned long long file_offset; /* Input/Output. Starting offset */
long long file_bytes; /* Input/Output. no. of bytes to send */
/* --------- trailer parms --------- */
void* trailer_data; /* Input/Output. Points to trailer buf */
uint_t trailer_length; /* Input/Output. Length of the trailer */
/* --------- return info ----------- */
unsigned long long bytes_sent; /* Output. no. of bytes sent */
};
/*
* Flags for the send_file() system call
*/
# define SF_CLOSE 0x00000001 /* close the socket after completion */
# define SF_REUSE 0x00000002 /* reuse socket. not supported */
# define SF_DONT_CACHE 0x00000004 /* don't apply network buffer cache */
# define SF_SYNC_CACHE 0x00000008 /* sync/update network buffer cache */
/*
* prototype: size_t send_file(int *, struct sf_parms *, uint_t);
*/
static ssize_t (*pt_aix_sendfile_fptr)() = NULL;
# define AIX_SEND_FILE(a, b, c) (*pt_aix_sendfile_fptr)(a, b, c)
# endif /* HAVE_SEND_FILE */
# endif /* AIX */
# ifdef LINUX
# include <sys/sendfile.h>
# endif
# include "primpl.h"
# if defined(LINUX) || defined(ANDROID)
# include <netinet/in.h>
# endif
# ifdef DARWIN
# include <netinet/in.h>
# include <netinet/ip.h>
# endif
# ifdef HAVE_NETINET_TCP_H
# include <netinet/tcp.h> /* TCP_NODELAY, TCP_MAXSEG */
# endif
# ifdef LINUX
/* TCP_CORK is not defined in <netinet/tcp.h> on Red Hat Linux 6.0 */
# ifndef TCP_CORK
# define TCP_CORK 3
# endif
# ifndef MSG_FASTOPEN
# define MSG_FASTOPEN 0x20000000
# endif
# endif
# ifdef _PR_IPV6_V6ONLY_PROBE
static PRBool _pr_ipv6_v6only_on_by_default;
# endif
# if (defined(HPUX) && !defined(HPUX10_30) && !defined(HPUX11))
# define _PRSelectFdSetArg_t int*
# elif defined(AIX4_1)
# define _PRSelectFdSetArg_t void*
# elif (defined(AIX) && !defined(AIX4_1)) || defined(SOLARIS) || \
defined(HPUX10_30) || defined(HPUX11) || defined(LINUX) || \
defined(__GNU__) || defined(__GLIBC__) || defined(FREEBSD) || \
defined(NETBSD) || defined(OPENBSD) || defined(NTO) || \
defined(DARWIN) || defined(RISCOS)
# define _PRSelectFdSetArg_t fd_set*
# else
# error "Cannot determine architecture"
# endif
# if defined(SOLARIS)
# ifndef PROTO_SDP
/* on solaris, SDP is a new type of protocol */
# define PROTO_SDP 257
# endif
# define _PR_HAVE_SDP
# elif defined(LINUX)
# ifndef AF_INET_SDP
/* on linux, SDP is a new type of address family */
# define AF_INET_SDP 27
# endif
# define _PR_HAVE_SDP
# endif /* LINUX */
static PRFileDesc* pt_SetMethods(PRIntn osfd, PRDescType type,
PRBool isAcceptedSocket, PRBool imported);
static PRLock* _pr_flock_lock; /* For PR_LockFile() etc. */
static PRCondVar* _pr_flock_cv; /* For PR_LockFile() etc. */
static PRLock* _pr_rename_lock; /* For PR_Rename() */
/**************************************************************************/
/* These two functions are only used in assertions. */
# if defined(DEBUG)
PRBool IsValidNetAddr(const PRNetAddr* addr) {
if ((addr != NULL) && (addr->raw.family != AF_UNIX) &&
(addr->raw.family != PR_AF_INET6) && (addr->raw.family != AF_INET)) {
return PR_FALSE;
}
return PR_TRUE;
}
static PRBool IsValidNetAddrLen(const PRNetAddr* addr, PRInt32 addr_len) {
/*
* The definition of the length of a Unix domain socket address
* is not uniform, so we don't check it.
*/
if ((addr != NULL) && (addr->raw.family != AF_UNIX) &&
(PR_NETADDR_SIZE(addr) != addr_len)) {
# if defined(LINUX) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 1
/*
* In glibc 2.1, struct sockaddr_in6 is 24 bytes. In glibc 2.2
* and in the 2.4 kernel, struct sockaddr_in6 has the scope_id
* field and is 28 bytes. It is possible for socket functions
* to return an addr_len greater than sizeof(struct sockaddr_in6).
* We need to allow that. (Bugzilla bug #77264)
*/
if ((PR_AF_INET6 == addr->raw.family) && (sizeof(addr->ipv6) == addr_len)) {
return PR_TRUE;
}
# endif
return PR_FALSE;
}
return PR_TRUE;
}
# endif /* DEBUG */
/*****************************************************************************/
/************************* I/O Continuation machinery ************************/
/*****************************************************************************/
/*
* The polling interval defines the maximum amount of time that a thread
* might hang up before an interrupt is noticed.
*/
# define PT_DEFAULT_POLL_MSEC 5000
# if defined(_PR_POLL_WITH_SELECT)
# define PT_DEFAULT_SELECT_SEC (PT_DEFAULT_POLL_MSEC / PR_MSEC_PER_SEC)
# define PT_DEFAULT_SELECT_USEC \
((PT_DEFAULT_POLL_MSEC % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC)
# endif
/*
* pt_SockLen is the type for the length of a socket address
* structure, used in the address length argument to bind,
* connect, accept, getsockname, getpeername, etc. Posix.1g
* defines this type as socklen_t. It is size_t or int on
* most current systems.
*/
# if defined(HAVE_SOCKLEN_T) || (defined(__GLIBC__) && __GLIBC__ >= 2)
typedef socklen_t pt_SockLen;
# elif (defined(AIX) && !defined(AIX4_1))
typedef PRSize pt_SockLen;
# else
typedef PRIntn pt_SockLen;
# endif
typedef struct pt_Continuation pt_Continuation;
typedef PRBool (*ContinuationFn)(pt_Continuation* op, PRInt16 revents);
typedef enum pr_ContuationStatus {
pt_continuation_pending,
pt_continuation_done
} pr_ContuationStatus;
struct pt_Continuation {
/* The building of the continuation operation */
ContinuationFn function; /* what function to continue */
union {
PRIntn osfd;
} arg1; /* #1 - the op's fd */
union {
void* buffer;
} arg2; /* #2 - primary transfer buffer */
union {
PRSize amount; /* #3 - size of 'buffer', or */
pt_SockLen* addr_len; /* - length of address */
# ifdef HPUX11
/*
* For sendfile()
*/
struct file_spec {
off_t offset; /* offset in file to send */
size_t nbytes; /* length of file data to send */
size_t st_size; /* file size */
} file_spec;
# endif
} arg3;
union {
PRIntn flags;
} arg4; /* #4 - read/write flags */
union {
PRNetAddr* addr;
} arg5; /* #5 - send/recv address */
# ifdef HPUX11
/*
* For sendfile()
*/
int filedesc; /* descriptor of file to send */
int nbytes_to_send; /* size of header and file */
# endif /* HPUX11 */
# ifdef SOLARIS
/*
* For sendfilev()
*/
int nbytes_to_send; /* size of header and file */
# endif /* SOLARIS */
# ifdef LINUX
/*
* For sendfile()
*/
int in_fd; /* descriptor of file to send */
off_t offset;
size_t count;
# endif /* LINUX */
PRIntervalTime timeout; /* client (relative) timeout */
PRInt16 event; /* flags for poll()'s events */
/*
** The representation and notification of the results of the operation.
** These function can either return an int return code or a pointer to
** some object.
*/
union {
PRSize code;
void* object;
} result;
PRIntn syserrno; /* in case it failed, why (errno) */
pr_ContuationStatus status; /* the status of the operation */
};
# if defined(DEBUG)
PTDebug pt_debug; /* this is shared between several modules */
PR_IMPLEMENT(void) PT_FPrintStats(PRFileDesc* debug_out, const char* msg) {
PTDebug stats;
char buffer[100];
PRExplodedTime tod;
PRInt64 elapsed, aMil;
stats = pt_debug; /* a copy */
PR_ExplodeTime(stats.timeStarted, PR_LocalTimeParameters, &tod);
(void)PR_FormatTime(buffer, sizeof(buffer), "%T", &tod);
LL_SUB(elapsed, PR_Now(), stats.timeStarted);
LL_I2L(aMil, 1000000);
LL_DIV(elapsed, elapsed, aMil);
if (NULL != msg) {
PR_fprintf(debug_out, "%s", msg);
}
PR_fprintf(debug_out, "\tstarted: %s[%lld]\n", buffer, elapsed);
PR_fprintf(debug_out, "\tlocks [created: %u, destroyed: %u]\n",
stats.locks_created, stats.locks_destroyed);
PR_fprintf(debug_out, "\tlocks [acquired: %u, released: %u]\n",
stats.locks_acquired, stats.locks_released);
PR_fprintf(debug_out, "\tcvars [created: %u, destroyed: %u]\n",
stats.cvars_created, stats.cvars_destroyed);
PR_fprintf(debug_out, "\tcvars [notified: %u, delayed_delete: %u]\n",
stats.cvars_notified, stats.delayed_cv_deletes);
} /* PT_FPrintStats */
# else
PR_IMPLEMENT(void) PT_FPrintStats(PRFileDesc* debug_out, const char* msg) {
/* do nothing */
} /* PT_FPrintStats */
# endif /* DEBUG */
# if defined(_PR_POLL_WITH_SELECT)
/*
* HPUX report the POLLHUP event for a socket when the
* shutdown(SHUT_WR) operation is called for the remote end, even though
* the socket is still writeable. Use select(), instead of poll(), to
* workaround this problem.
*/
static void pt_poll_now_with_select(pt_Continuation* op) {
PRInt32 msecs;
fd_set rd, wr, *rdp, *wrp;
struct timeval tv;
PRIntervalTime epoch, now, elapsed, remaining;
PRBool wait_for_remaining;
PRThread* self = PR_GetCurrentThread();
PR_ASSERT(PR_INTERVAL_NO_WAIT != op->timeout);
PR_ASSERT(op->arg1.osfd < FD_SETSIZE);
switch (op->timeout) {
case PR_INTERVAL_NO_TIMEOUT:
tv.tv_sec = PT_DEFAULT_SELECT_SEC;
tv.tv_usec = PT_DEFAULT_SELECT_USEC;
do {
PRIntn rv;
if (op->event & POLLIN) {
FD_ZERO(&rd);
FD_SET(op->arg1.osfd, &rd);
rdp = &rd;
} else {
rdp = NULL;
}
if (op->event & POLLOUT) {
FD_ZERO(&wr);
FD_SET(op->arg1.osfd, &wr);
wrp = ≀
} else {
wrp = NULL;
}
rv = select(op->arg1.osfd + 1, rdp, wrp, NULL, &tv);
if (_PT_THREAD_INTERRUPTED(self)) {
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if ((-1 == rv) && ((errno == EINTR) || (errno == EAGAIN))) {
continue; /* go around the loop again */
}
if (rv > 0) {
PRInt16 revents = 0;
if ((op->event & POLLIN) && FD_ISSET(op->arg1.osfd, &rd)) {
revents |= POLLIN;
}
if ((op->event & POLLOUT) && FD_ISSET(op->arg1.osfd, &wr)) {
revents |= POLLOUT;
}
if (op->function(op, revents)) {
op->status = pt_continuation_done;
}
} else if (rv == -1) {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
/* else, select timed out */
} while (pt_continuation_done != op->status);
break;
default:
now = epoch = PR_IntervalNow();
remaining = op->timeout;
do {
PRIntn rv;
if (op->event & POLLIN) {
FD_ZERO(&rd);
FD_SET(op->arg1.osfd, &rd);
rdp = &rd;
} else {
rdp = NULL;
}
if (op->event & POLLOUT) {
FD_ZERO(&wr);
FD_SET(op->arg1.osfd, &wr);
wrp = ≀
} else {
wrp = NULL;
}
wait_for_remaining = PR_TRUE;
msecs = (PRInt32)PR_IntervalToMilliseconds(remaining);
if (msecs > PT_DEFAULT_POLL_MSEC) {
wait_for_remaining = PR_FALSE;
msecs = PT_DEFAULT_POLL_MSEC;
}
tv.tv_sec = msecs / PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC;
rv = select(op->arg1.osfd + 1, rdp, wrp, NULL, &tv);
if (_PT_THREAD_INTERRUPTED(self)) {
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if (rv > 0) {
PRInt16 revents = 0;
if ((op->event & POLLIN) && FD_ISSET(op->arg1.osfd, &rd)) {
revents |= POLLIN;
}
if ((op->event & POLLOUT) && FD_ISSET(op->arg1.osfd, &wr)) {
revents |= POLLOUT;
}
if (op->function(op, revents)) {
op->status = pt_continuation_done;
}
} else if ((rv == 0) || ((errno == EINTR) || (errno == EAGAIN))) {
if (rv == 0) { /* select timed out */
if (wait_for_remaining) {
now += remaining;
} else {
now += PR_MillisecondsToInterval(msecs);
}
} else {
now = PR_IntervalNow();
}
elapsed = (PRIntervalTime)(now - epoch);
if (elapsed >= op->timeout) {
op->result.code = -1;
op->syserrno = ETIMEDOUT;
op->status = pt_continuation_done;
} else {
remaining = op->timeout - elapsed;
}
} else {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
} while (pt_continuation_done != op->status);
break;
}
} /* pt_poll_now_with_select */
# endif /* _PR_POLL_WITH_SELECT */
static void pt_poll_now(pt_Continuation* op) {
PRInt32 msecs;
PRIntervalTime epoch, now, elapsed, remaining;
PRBool wait_for_remaining;
PRThread* self = PR_GetCurrentThread();
PR_ASSERT(PR_INTERVAL_NO_WAIT != op->timeout);
# if defined(_PR_POLL_WITH_SELECT)
/*
* If the fd is small enough call the select-based poll operation
*/
if (op->arg1.osfd < FD_SETSIZE) {
pt_poll_now_with_select(op);
return;
}
# endif
switch (op->timeout) {
case PR_INTERVAL_NO_TIMEOUT:
msecs = PT_DEFAULT_POLL_MSEC;
do {
PRIntn rv;
struct pollfd tmp_pfd;
tmp_pfd.revents = 0;
tmp_pfd.fd = op->arg1.osfd;
tmp_pfd.events = op->event;
rv = poll(&tmp_pfd, 1, msecs);
if (_PT_THREAD_INTERRUPTED(self)) {
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if ((-1 == rv) && ((errno == EINTR) || (errno == EAGAIN))) {
continue; /* go around the loop again */
}
if (rv > 0) {
PRInt16 events = tmp_pfd.events;
PRInt16 revents = tmp_pfd.revents;
if ((revents & POLLNVAL) /* busted in all cases */
|| ((events & POLLOUT) && (revents & POLLHUP)))
/* write op & hup */
{
op->result.code = -1;
if (POLLNVAL & revents) {
op->syserrno = EBADF;
} else if (POLLHUP & revents) {
op->syserrno = EPIPE;
}
op->status = pt_continuation_done;
} else {
if (op->function(op, revents)) {
op->status = pt_continuation_done;
}
}
} else if (rv == -1) {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
/* else, poll timed out */
} while (pt_continuation_done != op->status);
break;
default:
now = epoch = PR_IntervalNow();
remaining = op->timeout;
do {
PRIntn rv;
struct pollfd tmp_pfd;
tmp_pfd.revents = 0;
tmp_pfd.fd = op->arg1.osfd;
tmp_pfd.events = op->event;
wait_for_remaining = PR_TRUE;
msecs = (PRInt32)PR_IntervalToMilliseconds(remaining);
if (msecs > PT_DEFAULT_POLL_MSEC) {
wait_for_remaining = PR_FALSE;
msecs = PT_DEFAULT_POLL_MSEC;
}
rv = poll(&tmp_pfd, 1, msecs);
if (_PT_THREAD_INTERRUPTED(self)) {
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if (rv > 0) {
PRInt16 events = tmp_pfd.events;
PRInt16 revents = tmp_pfd.revents;
if ((revents & POLLNVAL) /* busted in all cases */
|| ((events & POLLOUT) && (revents & POLLHUP)))
/* write op & hup */
{
op->result.code = -1;
if (POLLNVAL & revents) {
op->syserrno = EBADF;
} else if (POLLHUP & revents) {
op->syserrno = EPIPE;
}
op->status = pt_continuation_done;
} else {
if (op->function(op, revents)) {
op->status = pt_continuation_done;
}
}
} else if ((rv == 0) || ((errno == EINTR) || (errno == EAGAIN))) {
if (rv == 0) /* poll timed out */
{
if (wait_for_remaining) {
now += remaining;
} else {
now += PR_MillisecondsToInterval(msecs);
}
} else {
now = PR_IntervalNow();
}
elapsed = (PRIntervalTime)(now - epoch);
if (elapsed >= op->timeout) {
op->result.code = -1;
op->syserrno = ETIMEDOUT;
op->status = pt_continuation_done;
} else {
remaining = op->timeout - elapsed;
}
} else {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
} while (pt_continuation_done != op->status);
break;
}
} /* pt_poll_now */
static PRIntn pt_Continue(pt_Continuation* op) {
op->status = pt_continuation_pending; /* set default value */
/*
* let each thread call poll directly
*/
pt_poll_now(op);
PR_ASSERT(pt_continuation_done == op->status);
return op->result.code;
} /* pt_Continue */
/*****************************************************************************/
/*********************** specific continuation functions *********************/
/*****************************************************************************/
static PRBool pt_connect_cont(pt_Continuation* op, PRInt16 revents) {
op->syserrno = _MD_unix_get_nonblocking_connect_error(op->arg1.osfd);
if (op->syserrno != 0) {
op->result.code = -1;
} else {
op->result.code = 0;
}
return PR_TRUE; /* this one is cooked */
} /* pt_connect_cont */
static PRBool pt_accept_cont(pt_Continuation* op, PRInt16 revents) {
op->syserrno = 0;
op->result.code = accept(op->arg1.osfd, op->arg2.buffer, op->arg3.addr_len);
if (-1 == op->result.code) {
op->syserrno = errno;
if (EWOULDBLOCK == errno || EAGAIN == errno || ECONNABORTED == errno) {
return PR_FALSE; /* do nothing - this one ain't finished */
}
}
return PR_TRUE;
} /* pt_accept_cont */
static PRBool pt_read_cont(pt_Continuation* op, PRInt16 revents) {
/*
* Any number of bytes will complete the operation. It need
* not (and probably will not) satisfy the request. The only
* error we continue is EWOULDBLOCK|EAGAIN.
*/
op->result.code = read(op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno))
? PR_FALSE
: PR_TRUE;
} /* pt_read_cont */
static PRBool pt_recv_cont(pt_Continuation* op, PRInt16 revents) {
/*
* Any number of bytes will complete the operation. It need
* not (and probably will not) satisfy the request. The only
* error we continue is EWOULDBLOCK|EAGAIN.
*/
# if defined(SOLARIS)
if (0 == op->arg4.flags)
op->result.code = read(op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
else
op->result.code =
recv(op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
# else
op->result.code =
recv(op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
# endif
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno))
? PR_FALSE
: PR_TRUE;
} /* pt_recv_cont */
static PRBool pt_send_cont(pt_Continuation* op, PRInt16 revents) {
PRIntn bytes;
# if defined(SOLARIS)
PRInt32 tmp_amount = op->arg3.amount;
# endif
/*
* We want to write the entire amount out, no matter how many
* tries it takes. Keep advancing the buffer and the decrementing
* the amount until the amount goes away. Return the total bytes
* (which should be the original amount) when finished (or an
* error).
*/
# if defined(SOLARIS)
retry:
bytes = write(op->arg1.osfd, op->arg2.buffer, tmp_amount);
# else
bytes = send(op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
# endif
op->syserrno = errno;
# if defined(SOLARIS)
/*
* The write system call has been reported to return the ERANGE error
* on occasion. Try to write in smaller chunks to workaround this bug.
*/
if ((bytes == -1) && (op->syserrno == ERANGE)) {
if (tmp_amount > 1) {
tmp_amount = tmp_amount / 2; /* half the bytes */
goto retry;
}
}
# endif
if (bytes >= 0) /* this is progress */
{
char* bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno)) {
op->result.code = -1;
return PR_TRUE;
} else {
return PR_FALSE;
}
} /* pt_send_cont */
static PRBool pt_write_cont(pt_Continuation* op, PRInt16 revents) {
PRIntn bytes;
/*
* We want to write the entire amount out, no matter how many
* tries it takes. Keep advancing the buffer and the decrementing
* the amount until the amount goes away. Return the total bytes
* (which should be the original amount) when finished (or an
* error).
*/
bytes = write(op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
char* bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno)) {
op->result.code = -1;
return PR_TRUE;
} else {
return PR_FALSE;
}
} /* pt_write_cont */
static PRBool pt_writev_cont(pt_Continuation* op, PRInt16 revents) {
PRIntn bytes;
struct iovec* iov = (struct iovec*)op->arg2.buffer;
/*
* Same rules as write, but continuing seems to be a bit more
* complicated. As the number of bytes sent grows, we have to
* redefine the vector we're pointing at. We might have to
* modify an individual vector parms or we might have to eliminate
* a pair altogether.
*/
bytes = writev(op->arg1.osfd, iov, op->arg3.amount);
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
PRIntn iov_index;
op->result.code += bytes; /* accumulate the number sent */
for (iov_index = 0; iov_index < op->arg3.amount; ++iov_index) {
/* how much progress did we make in the i/o vector? */
if (bytes < iov[iov_index].iov_len) {
/* this element's not done yet */
char** bp = (char**)&(iov[iov_index].iov_base);
iov[iov_index].iov_len -= bytes; /* there's that much left */
*bp += bytes; /* starting there */
break; /* go off and do that */
}
bytes -= iov[iov_index].iov_len; /* that element's consumed */
}
op->arg2.buffer = &iov[iov_index]; /* new start of array */
op->arg3.amount -= iov_index; /* and array length */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno)) {
op->result.code = -1;
return PR_TRUE;
} else {
return PR_FALSE;
}
} /* pt_writev_cont */
static PRBool pt_sendto_cont(pt_Continuation* op, PRInt16 revents) {
PRIntn bytes =
sendto(op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags,
(struct sockaddr*)op->arg5.addr, PR_NETADDR_SIZE(op->arg5.addr));
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
char* bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno)) {
op->result.code = -1;
return PR_TRUE;
} else {
return PR_FALSE;
}
} /* pt_sendto_cont */
static PRBool pt_recvfrom_cont(pt_Continuation* op, PRInt16 revents) {
pt_SockLen addr_len = sizeof(PRNetAddr);
op->result.code =
recvfrom(op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags,
(struct sockaddr*)op->arg5.addr, &addr_len);
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno))
? PR_FALSE
: PR_TRUE;
} /* pt_recvfrom_cont */
# ifdef AIX
static PRBool pt_aix_sendfile_cont(pt_Continuation* op, PRInt16 revents) {
struct sf_parms* sf_struct = (struct sf_parms*)op->arg2.buffer;
ssize_t rv;
unsigned long long saved_file_offset;
long long saved_file_bytes;
saved_file_offset = sf_struct->file_offset;
saved_file_bytes = sf_struct->file_bytes;
sf_struct->bytes_sent = 0;
if ((sf_struct->file_bytes > 0) && (sf_struct->file_size > 0))
PR_ASSERT((sf_struct->file_bytes + sf_struct->file_offset) <=
sf_struct->file_size);
rv = AIX_SEND_FILE(&op->arg1.osfd, sf_struct, op->arg4.flags);
op->syserrno = errno;
if (rv != -1) {
op->result.code += sf_struct->bytes_sent;
/*
* A bug in AIX 4.3.2 prevents the 'file_bytes' field from
* being updated. So, 'file_bytes' is maintained by NSPR to
* avoid conflict when this bug is fixed in AIX, in the future.
*/
if (saved_file_bytes != -1) {
saved_file_bytes -= (sf_struct->file_offset - saved_file_offset);
}
sf_struct->file_bytes = saved_file_bytes;
} else if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
} else {
return PR_FALSE;
}
if (rv == 1) { /* more data to send */
return PR_FALSE;
}
return PR_TRUE;
}
# endif /* AIX */
# ifdef HPUX11
static PRBool pt_hpux_sendfile_cont(pt_Continuation* op, PRInt16 revents) {
struct iovec* hdtrl = (struct iovec*)op->arg2.buffer;
int count;
count = sendfile(op->arg1.osfd, op->filedesc, op->arg3.file_spec.offset,
op->arg3.file_spec.nbytes, hdtrl, op->arg4.flags);
PR_ASSERT(count <= op->nbytes_to_send);
op->syserrno = errno;
if (count != -1) {
op->result.code += count;
} else if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
} else {
return PR_FALSE;
}
if (count != -1 && count < op->nbytes_to_send) {
if (count < hdtrl[0].iov_len) {
/* header not sent */
hdtrl[0].iov_base = ((char*)hdtrl[0].iov_base) + count;
hdtrl[0].iov_len -= count;
} else if (count < (hdtrl[0].iov_len + op->arg3.file_spec.nbytes)) {
/* header sent, file not sent */
PRUint32 file_nbytes_sent = count - hdtrl[0].iov_len;
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
op->arg3.file_spec.offset += file_nbytes_sent;
op->arg3.file_spec.nbytes -= file_nbytes_sent;
} else if (count < (hdtrl[0].iov_len + op->arg3.file_spec.nbytes +
hdtrl[1].iov_len)) {
PRUint32 trailer_nbytes_sent =
count - (hdtrl[0].iov_len + op->arg3.file_spec.nbytes);
/* header sent, file sent, trailer not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
/*
* set file offset and len so that no more file data is
* sent
*/
op->arg3.file_spec.offset = op->arg3.file_spec.st_size;
op->arg3.file_spec.nbytes = 0;
hdtrl[1].iov_base = ((char*)hdtrl[1].iov_base) + trailer_nbytes_sent;
hdtrl[1].iov_len -= trailer_nbytes_sent;
}
op->nbytes_to_send -= count;
return PR_FALSE;
}
return PR_TRUE;
}
# endif /* HPUX11 */
# ifdef SOLARIS
static PRBool pt_solaris_sendfile_cont(pt_Continuation* op, PRInt16 revents) {
struct sendfilevec* vec = (struct sendfilevec*)op->arg2.buffer;
size_t xferred;
ssize_t count;
count = SOLARIS_SENDFILEV(op->arg1.osfd, vec, op->arg3.amount, &xferred);
op->syserrno = errno;
PR_ASSERT((count == -1) || (count == xferred));
if (count == -1) {
if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN &&
op->syserrno != EINTR) {
op->result.code = -1;
return PR_TRUE;
}
count = xferred;
} else if (count == 0) {
/*
* We are now at EOF. The file was truncated. Solaris sendfile is
* supposed to return 0 and no error in this case, though some versions
* may return -1 and EINVAL .
*/
op->result.code = -1;
op->syserrno = 0; /* will be treated as EOF */
return PR_TRUE;
}
PR_ASSERT(count <= op->nbytes_to_send);
op->result.code += count;
if (count < op->nbytes_to_send) {
op->nbytes_to_send -= count;
while (count >= vec->sfv_len) {
count -= vec->sfv_len;
vec++;
op->arg3.amount--;
}
PR_ASSERT(op->arg3.amount > 0);
vec->sfv_off += count;
vec->sfv_len -= count;
PR_ASSERT(vec->sfv_len > 0);
op->arg2.buffer = vec;
return PR_FALSE;
}
return PR_TRUE;
}
# endif /* SOLARIS */
# ifdef LINUX
static PRBool pt_linux_sendfile_cont(pt_Continuation* op, PRInt16 revents) {
ssize_t rv;
off_t oldoffset;
oldoffset = op->offset;
rv = sendfile(op->arg1.osfd, op->in_fd, &op->offset, op->count);
op->syserrno = errno;
if (rv == -1) {
if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
return PR_TRUE;
}
rv = 0;
}
PR_ASSERT(rv == op->offset - oldoffset);
op->result.code += rv;
if (rv < op->count) {
op->count -= rv;
return PR_FALSE;
}
return PR_TRUE;
}
# endif /* LINUX */
void _PR_InitIO(void) {
# if defined(DEBUG)
memset(&pt_debug, 0, sizeof(PTDebug));
pt_debug.timeStarted = PR_Now();
# endif
_pr_flock_lock = PR_NewLock();
PR_ASSERT(NULL != _pr_flock_lock);
_pr_flock_cv = PR_NewCondVar(_pr_flock_lock);
PR_ASSERT(NULL != _pr_flock_cv);
_pr_rename_lock = PR_NewLock();
PR_ASSERT(NULL != _pr_rename_lock);
_PR_InitFdCache(); /* do that */
_pr_stdin = pt_SetMethods(0, PR_DESC_FILE, PR_FALSE, PR_TRUE);
_pr_stdout = pt_SetMethods(1, PR_DESC_FILE, PR_FALSE, PR_TRUE);
_pr_stderr = pt_SetMethods(2, PR_DESC_FILE, PR_FALSE, PR_TRUE);
PR_ASSERT(_pr_stdin && _pr_stdout && _pr_stderr);
# ifdef _PR_IPV6_V6ONLY_PROBE
/* In Mac OS X v10.3 Panther Beta the IPV6_V6ONLY socket option
* is turned on by default, contrary to what RFC 3493, Section
* 5.3 says. So we have to turn it off. Find out whether we
* are running on such a system.
*/
{
int osfd;
osfd = socket(AF_INET6, SOCK_STREAM, 0);
if (osfd != -1) {
int on;
socklen_t optlen = sizeof(on);
if (getsockopt(osfd, IPPROTO_IPV6, IPV6_V6ONLY, &on, &optlen) == 0) {
_pr_ipv6_v6only_on_by_default = on;
}
close(osfd);
}
}
# endif
} /* _PR_InitIO */
void _PR_CleanupIO(void) {
_PR_Putfd(_pr_stdin);
_pr_stdin = NULL;
_PR_Putfd(_pr_stdout);
_pr_stdout = NULL;
_PR_Putfd(_pr_stderr);
_pr_stderr = NULL;
_PR_CleanupFdCache();
if (_pr_flock_cv) {
PR_DestroyCondVar(_pr_flock_cv);
_pr_flock_cv = NULL;
}
if (_pr_flock_lock) {
PR_DestroyLock(_pr_flock_lock);
_pr_flock_lock = NULL;
}
if (_pr_rename_lock) {
PR_DestroyLock(_pr_rename_lock);
_pr_rename_lock = NULL;
}
} /* _PR_CleanupIO */
PR_IMPLEMENT(PRFileDesc*) PR_GetSpecialFD(PRSpecialFD osfd) {
PRFileDesc* result = NULL;
PR_ASSERT(osfd >= PR_StandardInput && osfd <= PR_StandardError);
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
switch (osfd) {
case PR_StandardInput:
result = _pr_stdin;
break;
case PR_StandardOutput:
result = _pr_stdout;
break;
case PR_StandardError:
result = _pr_stderr;
break;
default:
(void)PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
}
return result;
} /* PR_GetSpecialFD */
/*****************************************************************************/
/***************************** I/O private methods ***************************/
/*****************************************************************************/
static PRBool pt_TestAbort(void) {
PRThread* me = PR_GetCurrentThread();
if (_PT_THREAD_INTERRUPTED(me)) {
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
me->state &= ~PT_THREAD_ABORTED;
return PR_TRUE;
}
return PR_FALSE;
} /* pt_TestAbort */
static void pt_MapError(void (*mapper)(PRIntn), PRIntn syserrno) {
switch (syserrno) {
case EINTR:
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
break;
case ETIMEDOUT:
PR_SetError(PR_IO_TIMEOUT_ERROR, 0);
break;
default:
mapper(syserrno);
}
} /* pt_MapError */
static PRStatus pt_Close(PRFileDesc* fd) {
if ((NULL == fd) || (NULL == fd->secret) ||
((_PR_FILEDESC_OPEN != fd->secret->state) &&
(_PR_FILEDESC_CLOSED != fd->secret->state))) {
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if (pt_TestAbort()) {
return PR_FAILURE;
}
if (_PR_FILEDESC_OPEN == fd->secret->state) {
if (-1 == close(fd->secret->md.osfd)) {
pt_MapError(_PR_MD_MAP_CLOSE_ERROR, errno);
return PR_FAILURE;
}
fd->secret->state = _PR_FILEDESC_CLOSED;
}
_PR_Putfd(fd);
return PR_SUCCESS;
} /* pt_Close */
static PRInt32 pt_Read(PRFileDesc* fd, void* buf, PRInt32 amount) {
PRInt32 syserrno, bytes = -1;
if (pt_TestAbort()) {
return bytes;
}
bytes = read(fd->secret->md.osfd, buf, amount);
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.timeout = PR_INTERVAL_NO_TIMEOUT;
op.function = pt_read_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes < 0) {
pt_MapError(_PR_MD_MAP_READ_ERROR, syserrno);
}
return bytes;
} /* pt_Read */
static PRInt32 pt_Write(PRFileDesc* fd, const void* buf, PRInt32 amount) {
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
if (pt_TestAbort()) {
return bytes;
}
bytes = write(fd->secret->md.osfd, buf, amount);
syserrno = errno;
if ((bytes >= 0) && (bytes < amount) && (!fd->secret->nonblocking)) {
buf = (char*)buf + bytes;
amount -= bytes;
fNeedContinue = PR_TRUE;
}
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
bytes = 0;
fNeedContinue = PR_TRUE;
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.timeout = PR_INTERVAL_NO_TIMEOUT;
op.result.code = bytes; /* initialize the number sent */
op.function = pt_write_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes == -1) {
pt_MapError(_PR_MD_MAP_WRITE_ERROR, syserrno);
}
return bytes;
} /* pt_Write */
static PRInt32 pt_Writev(PRFileDesc* fd, const PRIOVec* iov, PRInt32 iov_len,
PRIntervalTime timeout) {
PRIntn iov_index;
PRBool fNeedContinue = PR_FALSE;
PRInt32 syserrno, bytes, rv = -1;
struct iovec osiov_local[PR_MAX_IOVECTOR_SIZE], *osiov;
int osiov_len;
if (pt_TestAbort()) {
return rv;
}
/* Ensured by PR_Writev */
PR_ASSERT(iov_len <= PR_MAX_IOVECTOR_SIZE);
/*
* We can't pass iov to writev because PRIOVec and struct iovec
* may not be binary compatible. Make osiov a copy of iov and
* pass osiov to writev. We can modify osiov if we need to
* continue the operation.
*/
osiov = osiov_local;
osiov_len = iov_len;
for (iov_index = 0; iov_index < osiov_len; iov_index++) {
osiov[iov_index].iov_base = iov[iov_index].iov_base;
osiov[iov_index].iov_len = iov[iov_index].iov_len;
}
rv = bytes = writev(fd->secret->md.osfd, osiov, osiov_len);
syserrno = errno;
if (!fd->secret->nonblocking) {
if (bytes >= 0) {
/*
* If we moved some bytes, how does that implicate the
* i/o vector list? In other words, exactly where are
* we within that array? What are the parameters for
* resumption? Maybe we're done!
*/
for (; osiov_len > 0; osiov++, osiov_len--) {
if (bytes < osiov->iov_len) {
/* this one's not done yet */
osiov->iov_base = (char*)osiov->iov_base + bytes;
osiov->iov_len -= bytes;
break; /* go off and do that */
}
bytes -= osiov->iov_len; /* this one's done cooked */
}
PR_ASSERT(osiov_len > 0 || bytes == 0);
if (osiov_len > 0) {
if (PR_INTERVAL_NO_WAIT == timeout) {
rv = -1;
syserrno = ETIMEDOUT;
} else {
fNeedContinue = PR_TRUE;
}
}
} else if (syserrno == EWOULDBLOCK || syserrno == EAGAIN) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
rv = 0;
fNeedContinue = PR_TRUE;
}
}
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)osiov;
op.arg3.amount = osiov_len;
op.timeout = timeout;
op.result.code = rv;
op.function = pt_writev_cont;
op.event = POLLOUT | POLLPRI;
rv = pt_Continue(&op);
syserrno = op.syserrno;
}
if (rv == -1) {
pt_MapError(_PR_MD_MAP_WRITEV_ERROR, syserrno);
}
return rv;
} /* pt_Writev */
static PRInt32 pt_Seek(PRFileDesc* fd, PRInt32 offset, PRSeekWhence whence) {
return _PR_MD_LSEEK(fd, offset, whence);
} /* pt_Seek */
static PRInt64 pt_Seek64(PRFileDesc* fd, PRInt64 offset, PRSeekWhence whence) {
return _PR_MD_LSEEK64(fd, offset, whence);
} /* pt_Seek64 */
static PRInt32 pt_Available_f(PRFileDesc* fd) {
PRInt32 result, cur, end;
cur = _PR_MD_LSEEK(fd, 0, PR_SEEK_CUR);
if (cur >= 0) {
end = _PR_MD_LSEEK(fd, 0, PR_SEEK_END);
}
if ((cur < 0) || (end < 0)) {
return -1;
}
result = end - cur;
_PR_MD_LSEEK(fd, cur, PR_SEEK_SET);
return result;
} /* pt_Available_f */
static PRInt64 pt_Available64_f(PRFileDesc* fd) {
PRInt64 result, cur, end;
PRInt64 minus_one;
LL_I2L(minus_one, -1);
cur = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_CUR);
if (LL_GE_ZERO(cur)) {
end = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_END);
}
if (!LL_GE_ZERO(cur) || !LL_GE_ZERO(end)) {
return minus_one;
}
LL_SUB(result, end, cur);
(void)_PR_MD_LSEEK64(fd, cur, PR_SEEK_SET);
return result;
} /* pt_Available64_f */
static PRInt32 pt_Available_s(PRFileDesc* fd) {
PRInt32 rv, bytes = -1;
if (pt_TestAbort()) {
return bytes;
}
rv = ioctl(fd->secret->md.osfd, FIONREAD, &bytes);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_SOCKETAVAILABLE_ERROR, errno);
}
return bytes;
} /* pt_Available_s */
static PRInt64 pt_Available64_s(PRFileDesc* fd) {
PRInt64 rv;
LL_I2L(rv, pt_Available_s(fd));
return rv;
} /* pt_Available64_s */
static PRStatus pt_FileInfo(PRFileDesc* fd, PRFileInfo* info) {
PRInt32 rv = _PR_MD_GETOPENFILEINFO(fd, info);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_FileInfo */
static PRStatus pt_FileInfo64(PRFileDesc* fd, PRFileInfo64* info) {
PRInt32 rv = _PR_MD_GETOPENFILEINFO64(fd, info);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_FileInfo64 */
static PRStatus pt_Synch(PRFileDesc* fd) {
return (NULL == fd) ? PR_FAILURE : PR_SUCCESS;
} /* pt_Synch */
static PRStatus pt_Fsync(PRFileDesc* fd) {
PRIntn rv = -1;
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = fsync(fd->secret->md.osfd);
if (rv < 0) {
pt_MapError(_PR_MD_MAP_FSYNC_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Fsync */
static PRStatus pt_Connect(PRFileDesc* fd, const PRNetAddr* addr,
PRIntervalTime timeout) {
PRIntn rv = -1, syserrno;
pt_SockLen addr_len;
const PRNetAddr* addrp = addr;
# if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRNetAddr addrCopy;
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
PRUint16 md_af = addr->raw.family;
# endif
if (pt_TestAbort()) {
return PR_FAILURE;
}
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
addr_len = PR_NETADDR_SIZE(addr);
# ifdef _PR_INET6
if (addr->raw.family == PR_AF_INET6) {
# ifdef _PR_HAVE_SOCKADDR_LEN
md_af = AF_INET6;
# else
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
# endif
}
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
# endif
rv = connect(fd->secret->md.osfd, (struct sockaddr*)addrp, addr_len);
syserrno = errno;
if ((-1 == rv) && (EINPROGRESS == syserrno) && (!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)addrp;
op.arg3.amount = addr_len;
op.timeout = timeout;
op.function = pt_connect_cont;
op.event = POLLOUT | POLLPRI;
rv = pt_Continue(&op);
syserrno = op.syserrno;
}
}
if (-1 == rv) {
pt_MapError(_PR_MD_MAP_CONNECT_ERROR, syserrno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Connect */
static PRStatus pt_ConnectContinue(PRFileDesc* fd, PRInt16 out_flags) {
int err;
PRInt32 osfd;
if (out_flags & PR_POLL_NVAL) {
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if ((out_flags &
(PR_POLL_WRITE | PR_POLL_EXCEPT | PR_POLL_ERR | PR_POLL_HUP)) == 0) {
PR_ASSERT(out_flags == 0);
PR_SetError(PR_IN_PROGRESS_ERROR, 0);
return PR_FAILURE;
}
osfd = fd->secret->md.osfd;
err = _MD_unix_get_nonblocking_connect_error(osfd);
if (err != 0) {
_PR_MD_MAP_CONNECT_ERROR(err);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_ConnectContinue */
PR_IMPLEMENT(PRStatus) PR_GetConnectStatus(const PRPollDesc* pd) {
/* Find the NSPR layer and invoke its connectcontinue method */
PRFileDesc* bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER);
if (NULL == bottom) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
return pt_ConnectContinue(bottom, pd->out_flags);
} /* PR_GetConnectStatus */
static PRFileDesc* pt_Accept(PRFileDesc* fd, PRNetAddr* addr,
PRIntervalTime timeout) {
PRFileDesc* newfd = NULL;
PRIntn syserrno, osfd = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) {
return newfd;
}
# ifdef _PR_STRICT_ADDR_LEN
if (addr) {
/*
* Set addr->raw.family just so that we can use the
* PR_NETADDR_SIZE macro.
*/
addr->raw.family = fd->secret->af;
addr_len = PR_NETADDR_SIZE(addr);
}
# endif
osfd = accept(fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
syserrno = errno;
if (osfd == -1) {
if (fd->secret->nonblocking) {
goto failed;
}
if (EWOULDBLOCK != syserrno && EAGAIN != syserrno &&
ECONNABORTED != syserrno) {
goto failed;
} else {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = addr;
op.arg3.addr_len = &addr_len;
op.timeout = timeout;
op.function = pt_accept_cont;
op.event = POLLIN | POLLPRI;
osfd = pt_Continue(&op);
syserrno = op.syserrno;
}
if (osfd < 0) {
goto failed;
}
}
}
# ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr) {
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
# endif /* _PR_HAVE_SOCKADDR_LEN */
# ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family)) {
addr->raw.family = PR_AF_INET6;
}
# endif
newfd = pt_SetMethods(osfd, PR_DESC_SOCKET_TCP, PR_TRUE, PR_FALSE);
if (newfd == NULL) {
close(osfd); /* $$$ whoops! this doesn't work $$$ */
} else {
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
# ifdef LINUX
/*
* On Linux, experiments showed that the accepted sockets
* inherit the TCP_NODELAY socket option of the listening
* socket.
*/
newfd->secret->md.tcp_nodelay = fd->secret->md.tcp_nodelay;
# endif
}
return newfd;
failed:
pt_MapError(_PR_MD_MAP_ACCEPT_ERROR, syserrno);
return NULL;
} /* pt_Accept */
static PRStatus pt_Bind(PRFileDesc* fd, const PRNetAddr* addr) {
PRIntn rv;
pt_SockLen addr_len;
const PRNetAddr* addrp = addr;
# if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRNetAddr addrCopy;
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
PRUint16 md_af = addr->raw.family;
# endif
if (pt_TestAbort()) {
return PR_FAILURE;
}
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
if (addr->raw.family == AF_UNIX) {
/* Disallow relative pathnames */
if (addr->local.path[0] != '/'
# if defined(LINUX)
/* Linux has abstract socket address support */
&& addr->local.path[0] != 0
# endif
) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
}
# ifdef _PR_INET6
if (addr->raw.family == PR_AF_INET6) {
# ifdef _PR_HAVE_SOCKADDR_LEN
md_af = AF_INET6;
# else
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
# endif
}
# endif
addr_len = PR_NETADDR_SIZE(addr);
# ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
# endif
rv = bind(fd->secret->md.osfd, (struct sockaddr*)addrp, addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_BIND_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Bind */
static PRStatus pt_Listen(PRFileDesc* fd, PRIntn backlog) {
PRIntn rv;
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = listen(fd->secret->md.osfd, backlog);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_LISTEN_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Listen */
static PRStatus pt_Shutdown(PRFileDesc* fd, PRIntn how) {
PRIntn rv = -1;
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = shutdown(fd->secret->md.osfd, how);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_SHUTDOWN_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Shutdown */
static PRInt16 pt_Poll(PRFileDesc* fd, PRInt16 in_flags, PRInt16* out_flags) {
*out_flags = 0;
return in_flags;
} /* pt_Poll */
static PRInt32 pt_Recv(PRFileDesc* fd, void* buf, PRInt32 amount, PRIntn flags,
PRIntervalTime timeout) {
PRInt32 syserrno, bytes = -1;
PRIntn osflags;
if (0 == flags) {
osflags = 0;
} else if (PR_MSG_PEEK == flags) {
osflags = MSG_PEEK;
} else {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return bytes;
}
if (pt_TestAbort()) {
return bytes;
}
/* recv() is a much slower call on pre-2.6 Solaris than read(). */
# if defined(SOLARIS)
if (0 == osflags) {
bytes = read(fd->secret->md.osfd, buf, amount);
} else {
bytes = recv(fd->secret->md.osfd, buf, amount, osflags);
}
# else
bytes = recv(fd->secret->md.osfd, buf, amount, osflags);
# endif
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.arg4.flags = osflags;
op.timeout = timeout;
op.function = pt_recv_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
}
if (bytes < 0) {
pt_MapError(_PR_MD_MAP_RECV_ERROR, syserrno);
}
return bytes;
} /* pt_Recv */
static PRInt32 pt_SocketRead(PRFileDesc* fd, void* buf, PRInt32 amount) {
return pt_Recv(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
} /* pt_SocketRead */
static PRInt32 pt_Send(PRFileDesc* fd, const void* buf, PRInt32 amount,
PRIntn flags, PRIntervalTime timeout) {
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
# if defined(SOLARIS)
PRInt32 tmp_amount = amount;
# endif
if (pt_TestAbort()) {
return bytes;
}
/*
* On pre-2.6 Solaris, send() is much slower than write().
* On 2.6 and beyond, with in-kernel sockets, send() and
* write() are fairly equivalent in performance.
*/
# if defined(SOLARIS)
PR_ASSERT(0 == flags);
retry:
bytes = write(fd->secret->md.osfd, buf, tmp_amount);
# else
bytes = send(fd->secret->md.osfd, buf, amount, flags);
# endif
syserrno = errno;
# if defined(SOLARIS)
/*
* The write system call has been reported to return the ERANGE error
* on occasion. Try to write in smaller chunks to workaround this bug.
*/
if ((bytes == -1) && (syserrno == ERANGE)) {
if (tmp_amount > 1) {
tmp_amount = tmp_amount / 2; /* half the bytes */
goto retry;
}
}
# endif
if ((bytes >= 0) && (bytes < amount) && (!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
bytes = -1;
syserrno = ETIMEDOUT;
} else {
buf = (char*)buf + bytes;
amount -= bytes;
fNeedContinue = PR_TRUE;
}
}
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
bytes = 0;
fNeedContinue = PR_TRUE;
}
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.timeout = timeout;
op.result.code = bytes; /* initialize the number sent */
op.function = pt_send_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes == -1) {
pt_MapError(_PR_MD_MAP_SEND_ERROR, syserrno);
}
return bytes;
} /* pt_Send */
static PRInt32 pt_SocketWrite(PRFileDesc* fd, const void* buf, PRInt32 amount) {
return pt_Send(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
} /* pt_SocketWrite */
static PRInt32 pt_SendTo(PRFileDesc* fd, const void* buf, PRInt32 amount,
PRIntn flags, const PRNetAddr* addr,
PRIntervalTime timeout) {
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
pt_SockLen addr_len;
const PRNetAddr* addrp = addr;
# if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRNetAddr addrCopy;
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
PRUint16 md_af = addr->raw.family;
# endif
if (pt_TestAbort()) {
return bytes;
}
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
# ifdef _PR_INET6
if (addr->raw.family == PR_AF_INET6) {
# ifdef _PR_HAVE_SOCKADDR_LEN
md_af = AF_INET6;
# else
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
# endif
}
# endif
addr_len = PR_NETADDR_SIZE(addr);
# ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
# endif
bytes = sendto(fd->secret->md.osfd, buf, amount, flags,
(struct sockaddr*)addrp, addr_len);
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
fNeedContinue = PR_TRUE;
}
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.arg5.addr = (PRNetAddr*)addrp;
op.timeout = timeout;
op.result.code = 0; /* initialize the number sent */
op.function = pt_sendto_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes < 0) {
pt_MapError(_PR_MD_MAP_SENDTO_ERROR, syserrno);
}
return bytes;
} /* pt_SendTo */
# if defined(LINUX) || defined(DARWIN)
/* Linux uses SendTo to send data during TCP Fast Open. OSX uses connectx, but
* we will make it imitate the Linux's interface. */
static PRInt32 pt_TCP_SendTo(PRFileDesc* fd, const void* buf, PRInt32 amount,
PRIntn flags, const PRNetAddr* addr,
PRIntervalTime timeout) {
# if defined(LINUX) || HAS_CONNECTX
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
pt_SockLen addr_len;
const PRNetAddr* addrp = addr;
# if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRNetAddr addrCopy;
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
PRUint16 md_af = addr->raw.family;
# endif
if (pt_TestAbort()) {
return bytes;
}
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
addr_len = PR_NETADDR_SIZE(addr);
# if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
# ifdef _PR_HAVE_SOCKADDR_LEN
md_af = AF_INET6;
# else
/* If _PR_INET6 is defined and it is PR_AF_INET6 we set family
* to AF_INET6. */
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
# endif
}
# endif
# ifdef _PR_HAVE_SOCKADDR_LEN
/* if _PR_HAVE_SOCKADDR_LEN is defined and it is PR_AF_INET6 we set family
* to AF_INET6 and we set address length. */
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
# endif
# ifndef HAS_CONNECTX
bytes = sendto(fd->secret->md.osfd, buf, amount, MSG_FASTOPEN,
(struct sockaddr*)addrp, addr_len);
# else
sa_endpoints_t endpoints;
endpoints.sae_srcif = 0;
endpoints.sae_srcaddr = NULL;
endpoints.sae_srcaddrlen = 0;
endpoints.sae_dstaddr = (struct sockaddr*)addrp;
endpoints.sae_dstaddrlen = addr_len;
struct iovec iov[1];
iov[0].iov_base = buf;
iov[0].iov_len = amount;
PRInt32 rv = connectx(fd->secret->md.osfd, &endpoints, SAE_ASSOCID_ANY,
CONNECT_DATA_IDEMPOTENT, iov, 1, &bytes, NULL);
# endif
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
fNeedContinue = PR_TRUE;
}
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.arg5.addr = (PRNetAddr*)addrp;
op.timeout = timeout;
op.result.code = 0; /* initialize the number sent */
op.function = pt_sendto_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes < 0) {
pt_MapError(_PR_MD_MAP_SENDTO_ERROR, syserrno);
}
return bytes;
# else /* !HAS_CONNECTX */
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return -1;
# endif
} /* pt_TCP_SendTo */
# endif /* LINUX || DARWIN */
static PRInt32 pt_RecvFrom(PRFileDesc* fd, void* buf, PRInt32 amount,
PRIntn flags, PRNetAddr* addr,
PRIntervalTime timeout) {
PRBool fNeedContinue = PR_FALSE;
PRInt32 syserrno, bytes = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) {
return bytes;
}
bytes = recvfrom(fd->secret->md.osfd, buf, amount, flags,
(struct sockaddr*)addr, &addr_len);
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN) &&
(!fd->secret->nonblocking)) {
if (PR_INTERVAL_NO_WAIT == timeout) {
syserrno = ETIMEDOUT;
} else {
fNeedContinue = PR_TRUE;
}
}
if (fNeedContinue == PR_TRUE) {
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.arg5.addr = addr;
op.timeout = timeout;
op.function = pt_recvfrom_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes >= 0) {
# ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr) {
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
# endif /* _PR_HAVE_SOCKADDR_LEN */
# ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family)) {
addr->raw.family = PR_AF_INET6;
}
# endif
} else {
pt_MapError(_PR_MD_MAP_RECVFROM_ERROR, syserrno);
}
return bytes;
} /* pt_RecvFrom */
# ifdef AIX
# ifndef HAVE_SEND_FILE
static pthread_once_t pt_aix_sendfile_once_block = PTHREAD_ONCE_INIT;
static void pt_aix_sendfile_init_routine(void) {
void* handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL);
pt_aix_sendfile_fptr = (ssize_t(*)())dlsym(handle, "send_file");
dlclose(handle);
}
/*
* pt_AIXDispatchSendFile
*/
static PRInt32 pt_AIXDispatchSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
int rv;
rv = pthread_once(&pt_aix_sendfile_once_block, pt_aix_sendfile_init_routine);
PR_ASSERT(0 == rv);
if (pt_aix_sendfile_fptr) {
return pt_AIXSendFile(sd, sfd, flags, timeout);
} else {
return PR_EmulateSendFile(sd, sfd, flags, timeout);
}
}
# endif /* !HAVE_SEND_FILE */
/*
* pt_AIXSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the send_file() system
* call available in AIX 4.3.2.
*/
static PRInt32 pt_AIXSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
struct sf_parms sf_struct;
uint_t send_flags;
ssize_t rv;
int syserrno;
PRInt32 count;
unsigned long long saved_file_offset;
long long saved_file_bytes;
sf_struct.header_data = (void*)sfd->header; /* cast away the 'const' */
sf_struct.header_length = sfd->hlen;
sf_struct.file_descriptor = sfd->fd->secret->md.osfd;
sf_struct.file_size = 0;
sf_struct.file_offset = sfd->file_offset;
if (sfd->file_nbytes == 0) {
sf_struct.file_bytes = -1;
} else {
sf_struct.file_bytes = sfd->file_nbytes;
}
sf_struct.trailer_data = (void*)sfd->trailer;
sf_struct.trailer_length = sfd->tlen;
sf_struct.bytes_sent = 0;
saved_file_offset = sf_struct.file_offset;
saved_file_bytes = sf_struct.file_bytes;
send_flags = 0; /* flags processed at the end */
/* The first argument to send_file() is int*. */
PR_ASSERT(sizeof(int) == sizeof(sd->secret->md.osfd));
do {
rv = AIX_SEND_FILE(&sd->secret->md.osfd, &sf_struct, send_flags);
} while (rv == -1 && (syserrno = errno) == EINTR);
if (rv == -1) {
if (syserrno == EAGAIN || syserrno == EWOULDBLOCK) {
count = 0; /* Not a real error. Need to continue. */
} else {
count = -1;
}
} else {
count = sf_struct.bytes_sent;
/*
* A bug in AIX 4.3.2 prevents the 'file_bytes' field from
* being updated. So, 'file_bytes' is maintained by NSPR to
* avoid conflict when this bug is fixed in AIX, in the future.
*/
if (saved_file_bytes != -1) {
saved_file_bytes -= (sf_struct.file_offset - saved_file_offset);
}
sf_struct.file_bytes = saved_file_bytes;
}
if ((rv == 1) || ((rv == -1) && (count == 0))) {
pt_Continuation op;
op.arg1.osfd = sd->secret->md.osfd;
op.arg2.buffer = &sf_struct;
op.arg4.flags = send_flags;
op.result.code = count;
op.timeout = timeout;
op.function = pt_aix_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
if (count == -1) {
pt_MapError(_MD_aix_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count ==
(sfd->hlen + sfd->tlen +
((sfd->file_nbytes == 0) ? sf_struct.file_size - sfd->file_offset
: sfd->file_nbytes)));
return count;
}
# endif /* AIX */
# ifdef HPUX11
/*
* pt_HPUXSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfile() system
* call available in HP-UX B.11.00.
*/
static PRInt32 pt_HPUXSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
struct stat statbuf;
size_t nbytes_to_send, file_nbytes_to_send;
struct iovec hdtrl[2]; /* optional header and trailer buffers */
int send_flags;
PRInt32 count;
int syserrno;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
nbytes_to_send = sfd->hlen + sfd->tlen + file_nbytes_to_send;
hdtrl[0].iov_base = (void*)sfd->header; /* cast away the 'const' */
hdtrl[0].iov_len = sfd->hlen;
hdtrl[1].iov_base = (void*)sfd->trailer;
hdtrl[1].iov_len = sfd->tlen;
/*
* SF_DISCONNECT seems to close the socket even if sendfile()
* only does a partial send on a nonblocking socket. This
* would prevent the subsequent sendfile() calls on that socket
* from working. So we don't use the SD_DISCONNECT flag.
*/
send_flags = 0;
do {
count = sendfile(sd->secret->md.osfd, sfd->fd->secret->md.osfd,
sfd->file_offset, file_nbytes_to_send, hdtrl, send_flags);
} while (count == -1 && (syserrno = errno) == EINTR);
if (count == -1 && (syserrno == EAGAIN || syserrno == EWOULDBLOCK)) {
count = 0;
}
if (count != -1 && count < nbytes_to_send) {
pt_Continuation op;
if (count < sfd->hlen) {
/* header not sent */
hdtrl[0].iov_base = ((char*)sfd->header) + count;
hdtrl[0].iov_len = sfd->hlen - count;
op.arg3.file_spec.offset = sfd->file_offset;
op.arg3.file_spec.nbytes = file_nbytes_to_send;
} else if (count < (sfd->hlen + file_nbytes_to_send)) {
/* header sent, file not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
op.arg3.file_spec.offset = sfd->file_offset + count - sfd->hlen;
op.arg3.file_spec.nbytes = file_nbytes_to_send - (count - sfd->hlen);
} else if (count < (sfd->hlen + file_nbytes_to_send + sfd->tlen)) {
PRUint32 trailer_nbytes_sent;
/* header sent, file sent, trailer not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
/*
* set file offset and len so that no more file data is
* sent
*/
op.arg3.file_spec.offset = statbuf.st_size;
op.arg3.file_spec.nbytes = 0;
trailer_nbytes_sent = count - sfd->hlen - file_nbytes_to_send;
hdtrl[1].iov_base = ((char*)sfd->trailer) + trailer_nbytes_sent;
hdtrl[1].iov_len = sfd->tlen - trailer_nbytes_sent;
}
op.arg1.osfd = sd->secret->md.osfd;
op.filedesc = sfd->fd->secret->md.osfd;
op.arg2.buffer = hdtrl;
op.arg3.file_spec.st_size = statbuf.st_size;
op.arg4.flags = send_flags;
op.nbytes_to_send = nbytes_to_send - count;
op.result.code = count;
op.timeout = timeout;
op.function = pt_hpux_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
if (count == -1) {
pt_MapError(_MD_hpux_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == nbytes_to_send);
return count;
}
# endif /* HPUX11 */
# ifdef SOLARIS
/*
* pt_SolarisSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfilev() system
* call available in Solaris 8.
*/
static PRInt32 pt_SolarisSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
struct stat statbuf;
size_t nbytes_to_send, file_nbytes_to_send;
struct sendfilevec sfv_struct[3];
int sfvcnt = 0;
size_t xferred;
PRInt32 count;
int syserrno;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
nbytes_to_send = sfd->hlen + sfd->tlen + file_nbytes_to_send;
if (sfd->hlen != 0) {
sfv_struct[sfvcnt].sfv_fd = SFV_FD_SELF;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = (off_t)sfd->header;
sfv_struct[sfvcnt].sfv_len = sfd->hlen;
sfvcnt++;
}
if (file_nbytes_to_send != 0) {
sfv_struct[sfvcnt].sfv_fd = sfd->fd->secret->md.osfd;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = sfd->file_offset;
sfv_struct[sfvcnt].sfv_len = file_nbytes_to_send;
sfvcnt++;
}
if (sfd->tlen != 0) {
sfv_struct[sfvcnt].sfv_fd = SFV_FD_SELF;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = (off_t)sfd->trailer;
sfv_struct[sfvcnt].sfv_len = sfd->tlen;
sfvcnt++;
}
if (0 == sfvcnt) {
count = 0;
goto done;
}
/*
* Strictly speaking, we may have sent some bytes when the
* sendfilev() is interrupted and we should retry it from an
* updated offset. We are not doing that here.
*/
count = SOLARIS_SENDFILEV(sd->secret->md.osfd, sfv_struct, sfvcnt, &xferred);
PR_ASSERT((count == -1) || (count == xferred));
if (count == -1) {
syserrno = errno;
if (syserrno == EINTR || syserrno == EAGAIN || syserrno == EWOULDBLOCK) {
count = xferred;
}
} else if (count == 0) {
/*
* We are now at EOF. The file was truncated. Solaris sendfile is
* supposed to return 0 and no error in this case, though some versions
* may return -1 and EINVAL .
*/
count = -1;
syserrno = 0; /* will be treated as EOF */
}
if (count != -1 && count < nbytes_to_send) {
pt_Continuation op;
struct sendfilevec* vec = sfv_struct;
PRInt32 rem = count;
while (rem >= vec->sfv_len) {
rem -= vec->sfv_len;
vec++;
sfvcnt--;
}
PR_ASSERT(sfvcnt > 0);
vec->sfv_off += rem;
vec->sfv_len -= rem;
PR_ASSERT(vec->sfv_len > 0);
op.arg1.osfd = sd->secret->md.osfd;
op.arg2.buffer = vec;
op.arg3.amount = sfvcnt;
op.arg4.flags = 0;
op.nbytes_to_send = nbytes_to_send - count;
op.result.code = count;
op.timeout = timeout;
op.function = pt_solaris_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
done:
if (count == -1) {
pt_MapError(_MD_solaris_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == nbytes_to_send);
return count;
}
# ifndef HAVE_SENDFILEV
static pthread_once_t pt_solaris_sendfilev_once_block = PTHREAD_ONCE_INIT;
static void pt_solaris_sendfilev_init_routine(void) {
void* handle;
PRBool close_it = PR_FALSE;
/*
* We do not want to unload libsendfile.so. This handle is leaked
* intentionally.
*/
handle = dlopen("libsendfile.so", RTLD_LAZY | RTLD_GLOBAL);
PR_LOG(_pr_io_lm, PR_LOG_DEBUG,
("dlopen(libsendfile.so) returns %p", handle));
if (NULL == handle) {
/*
* The dlopen(0, mode) call is to allow for the possibility that
* sendfilev() may become part of a standard system library in a
* future Solaris release.
*/
handle = dlopen(0, RTLD_LAZY | RTLD_GLOBAL);
PR_LOG(_pr_io_lm, PR_LOG_DEBUG, ("dlopen(0) returns %p", handle));
close_it = PR_TRUE;
}
pt_solaris_sendfilev_fptr = (ssize_t(*)())dlsym(handle, "sendfilev");
PR_LOG(_pr_io_lm, PR_LOG_DEBUG,
("dlsym(sendfilev) returns %p", pt_solaris_sendfilev_fptr));
if (close_it) {
dlclose(handle);
}
}
/*
* pt_SolarisDispatchSendFile
*/
static PRInt32 pt_SolarisDispatchSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
int rv;
rv = pthread_once(&pt_solaris_sendfilev_once_block,
pt_solaris_sendfilev_init_routine);
PR_ASSERT(0 == rv);
if (pt_solaris_sendfilev_fptr) {
return pt_SolarisSendFile(sd, sfd, flags, timeout);
} else {
return PR_EmulateSendFile(sd, sfd, flags, timeout);
}
}
# endif /* !HAVE_SENDFILEV */
# endif /* SOLARIS */
# ifdef LINUX
/*
* pt_LinuxSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfile() system
* call available in Linux kernel 2.2 or higher.
*/
static PRInt32 pt_LinuxSendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
struct stat statbuf;
size_t file_nbytes_to_send;
PRInt32 count = 0;
ssize_t rv;
int syserrno;
off_t offset;
PRBool tcp_cork_enabled = PR_FALSE;
int tcp_cork;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
if ((sfd->hlen != 0 || sfd->tlen != 0) && sd->secret->md.tcp_nodelay == 0) {
tcp_cork = 1;
if (setsockopt(sd->secret->md.osfd, SOL_TCP, TCP_CORK, &tcp_cork,
sizeof tcp_cork) == 0) {
tcp_cork_enabled = PR_TRUE;
} else {
syserrno = errno;
if (syserrno != EINVAL) {
_PR_MD_MAP_SETSOCKOPT_ERROR(syserrno);
return -1;
}
/*
* The most likely reason for the EINVAL error is that
* TCP_NODELAY is set (with a function other than
* PR_SetSocketOption). This is not fatal, so we keep
* on going.
*/
PR_LOG(_pr_io_lm, PR_LOG_WARNING,
("pt_LinuxSendFile: "
"setsockopt(TCP_CORK) failed with EINVAL\n"));
}
}
if (sfd->hlen != 0) {
count = PR_Send(sd, sfd->header, sfd->hlen, 0, timeout);
if (count == -1) {
goto failed;
}
}
if (file_nbytes_to_send != 0) {
offset = sfd->file_offset;
do {
rv = sendfile(sd->secret->md.osfd, sfd->fd->secret->md.osfd, &offset,
file_nbytes_to_send);
} while (rv == -1 && (syserrno = errno) == EINTR);
if (rv == -1) {
if (syserrno != EAGAIN && syserrno != EWOULDBLOCK) {
_MD_linux_map_sendfile_error(syserrno);
count = -1;
goto failed;
}
rv = 0;
}
PR_ASSERT(rv == offset - sfd->file_offset);
count += rv;
if (rv < file_nbytes_to_send) {
pt_Continuation op;
op.arg1.osfd = sd->secret->md.osfd;
op.in_fd = sfd->fd->secret->md.osfd;
op.offset = offset;
op.count = file_nbytes_to_send - rv;
op.result.code = count;
op.timeout = timeout;
op.function = pt_linux_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
if (count == -1) {
pt_MapError(_MD_linux_map_sendfile_error, syserrno);
goto failed;
}
}
}
if (sfd->tlen != 0) {
rv = PR_Send(sd, sfd->trailer, sfd->tlen, 0, timeout);
if (rv == -1) {
count = -1;
goto failed;
}
count += rv;
}
failed:
if (tcp_cork_enabled) {
tcp_cork = 0;
if (setsockopt(sd->secret->md.osfd, SOL_TCP, TCP_CORK, &tcp_cork,
sizeof tcp_cork) == -1 &&
count != -1) {
_PR_MD_MAP_SETSOCKOPT_ERROR(errno);
count = -1;
}
}
if (count != -1) {
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == sfd->hlen + sfd->tlen + file_nbytes_to_send);
}
return count;
}
# endif /* LINUX */
# ifdef AIX
extern int _pr_aix_send_file_use_disabled;
# endif
static PRInt32 pt_SendFile(PRFileDesc* sd, PRSendFileData* sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout) {
if (pt_TestAbort()) {
return -1;
}
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
# ifdef HPUX11
return (pt_HPUXSendFile(sd, sfd, flags, timeout));
# elif defined(AIX)
# ifdef HAVE_SEND_FILE
/*
* A bug in AIX 4.3.2 results in corruption of data transferred by
* send_file(); AIX patch PTF U463956 contains the fix. A user can
* disable the use of send_file function in NSPR, when this patch is
* not installed on the system, by setting the envionment variable
* NSPR_AIX_SEND_FILE_USE_DISABLED to 1.
*/
if (_pr_aix_send_file_use_disabled) {
return (PR_EmulateSendFile(sd, sfd, flags, timeout));
} else {
return (pt_AIXSendFile(sd, sfd, flags, timeout));
}
# else
return (PR_EmulateSendFile(sd, sfd, flags, timeout));
/* return(pt_AIXDispatchSendFile(sd, sfd, flags, timeout));*/
# endif /* HAVE_SEND_FILE */
# elif defined(SOLARIS)
# ifdef HAVE_SENDFILEV
return (pt_SolarisSendFile(sd, sfd, flags, timeout));
# else
return (pt_SolarisDispatchSendFile(sd, sfd, flags, timeout));
# endif /* HAVE_SENDFILEV */
# elif defined(LINUX)
return (pt_LinuxSendFile(sd, sfd, flags, timeout));
# else
return (PR_EmulateSendFile(sd, sfd, flags, timeout));
# endif
}
static PRInt32 pt_TransmitFile(PRFileDesc* sd, PRFileDesc* fd,
const void* headers, PRInt32 hlen,
PRTransmitFileFlags flags,
PRIntervalTime timeout) {
PRSendFileData sfd;
sfd.fd = fd;
sfd.file_offset = 0;
sfd.file_nbytes = 0;
sfd.header = headers;
sfd.hlen = hlen;
sfd.trailer = NULL;
sfd.tlen = 0;
return (pt_SendFile(sd, &sfd, flags, timeout));
} /* pt_TransmitFile */
static PRInt32 pt_AcceptRead(PRFileDesc* sd, PRFileDesc** nd, PRNetAddr** raddr,
void* buf, PRInt32 amount,
PRIntervalTime timeout) {
PRInt32 rv = -1;
if (pt_TestAbort()) {
return rv;
}
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return rv;
}
rv = PR_EmulateAcceptRead(sd, nd, raddr, buf, amount, timeout);
return rv;
} /* pt_AcceptRead */
static PRStatus pt_GetSockName(PRFileDesc* fd, PRNetAddr* addr) {
PRIntn rv = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = getsockname(fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_GETSOCKNAME_ERROR, errno);
return PR_FAILURE;
}
# ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr) {
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
# endif /* _PR_HAVE_SOCKADDR_LEN */
# ifdef _PR_INET6
if (AF_INET6 == addr->raw.family) {
addr->raw.family = PR_AF_INET6;
}
# endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
return PR_SUCCESS;
} /* pt_GetSockName */
static PRStatus pt_GetPeerName(PRFileDesc* fd, PRNetAddr* addr) {
PRIntn rv = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = getpeername(fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_GETPEERNAME_ERROR, errno);
return PR_FAILURE;
}
# ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr) {
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
# endif /* _PR_HAVE_SOCKADDR_LEN */
# ifdef _PR_INET6
if (AF_INET6 == addr->raw.family) {
addr->raw.family = PR_AF_INET6;
}
# endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
return PR_SUCCESS;
} /* pt_GetPeerName */
static PRStatus pt_GetSocketOption(PRFileDesc* fd, PRSocketOptionData* data) {
PRIntn rv;
pt_SockLen length;
PRInt32 level, name;
/*
* PR_SockOpt_Nonblocking is a special case that does not
* translate to a getsockopt() call
*/
if (PR_SockOpt_Nonblocking == data->option) {
data->value.non_blocking = fd->secret->nonblocking;
return PR_SUCCESS;
}
rv = _PR_MapOptionName(data->option, &level, &name);
if (PR_SUCCESS == rv) {
switch (data->option) {
case PR_SockOpt_Linger: {
struct linger linger;
length = sizeof(linger);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&linger,
&length);
PR_ASSERT((-1 == rv) || (sizeof(linger) == length));
data->value.linger.polarity = (linger.l_onoff) ? PR_TRUE : PR_FALSE;
data->value.linger.linger = PR_SecondsToInterval(linger.l_linger);
break;
}
case PR_SockOpt_Reuseaddr:
case PR_SockOpt_Keepalive:
case PR_SockOpt_NoDelay:
case PR_SockOpt_Broadcast:
case PR_SockOpt_Reuseport: {
PRIntn value;
length = sizeof(PRIntn);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&value,
&length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
data->value.reuse_addr = (0 == value) ? PR_FALSE : PR_TRUE;
break;
}
case PR_SockOpt_McastLoopback: {
PRUint8 xbool;
length = sizeof(xbool);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&xbool,
&length);
PR_ASSERT((-1 == rv) || (sizeof(xbool) == length));
data->value.mcast_loopback = (0 == xbool) ? PR_FALSE : PR_TRUE;
break;
}
case PR_SockOpt_RecvBufferSize:
case PR_SockOpt_SendBufferSize:
case PR_SockOpt_MaxSegment: {
PRIntn value;
length = sizeof(PRIntn);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&value,
&length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
data->value.recv_buffer_size = value;
break;
}
case PR_SockOpt_IpTimeToLive:
case PR_SockOpt_IpTypeOfService: {
length = sizeof(PRUintn);
rv = getsockopt(fd->secret->md.osfd, level, name,
(char*)&data->value.ip_ttl, &length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
break;
}
case PR_SockOpt_McastTimeToLive: {
PRUint8 ttl;
length = sizeof(ttl);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&ttl, &length);
PR_ASSERT((-1 == rv) || (sizeof(ttl) == length));
data->value.mcast_ttl = ttl;
break;
}
case PR_SockOpt_AddMember:
case PR_SockOpt_DropMember: {
struct ip_mreq mreq;
length = sizeof(mreq);
rv =
getsockopt(fd->secret->md.osfd, level, name, (char*)&mreq, &length);
PR_ASSERT((-1 == rv) || (sizeof(mreq) == length));
data->value.add_member.mcaddr.inet.ip = mreq.imr_multiaddr.s_addr;
data->value.add_member.ifaddr.inet.ip = mreq.imr_interface.s_addr;
break;
}
case PR_SockOpt_McastInterface: {
length = sizeof(data->value.mcast_if.inet.ip);
rv = getsockopt(fd->secret->md.osfd, level, name,
(char*)&data->value.mcast_if.inet.ip, &length);
PR_ASSERT((-1 == rv) ||
(sizeof(data->value.mcast_if.inet.ip) == length));
break;
}
case PR_SockOpt_DontFrag: {
# if !defined(DARWIN) && !defined(LINUX) && !defined(ANDROID)
PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, 0);
rv = PR_FAILURE;
# else
PRIntn value;
length = sizeof(value);
rv = getsockopt(fd->secret->md.osfd, level, name, (char*)&value,
&length);
# if defined(DARWIN)
data->value.dont_fragment = value;
# else
data->value.dont_fragment = (value == IP_PMTUDISC_DO) ? 1 : 0;
# endif
# endif /* !(!defined(DARWIN) && !defined(LINUX) && !defined(ANDROID)) */
break;
}
default:
PR_NOT_REACHED("Unknown socket option");
break;
}
if (-1 == rv) {
_PR_MD_MAP_GETSOCKOPT_ERROR(errno);
}
}
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_GetSocketOption */
static PRStatus pt_SetSocketOption(PRFileDesc* fd,
const PRSocketOptionData* data) {
PRIntn rv;
PRInt32 level, name;
/*
* PR_SockOpt_Nonblocking is a special case that does not
* translate to a setsockopt call.
*/
if (PR_SockOpt_Nonblocking == data->option) {
fd->secret->nonblocking = data->value.non_blocking;
return PR_SUCCESS;
}
rv = _PR_MapOptionName(data->option, &level, &name);
if (PR_SUCCESS == rv) {
switch (data->option) {
case PR_SockOpt_Linger: {
struct linger linger;
linger.l_onoff = data->value.linger.polarity;
linger.l_linger = PR_IntervalToSeconds(data->value.linger.linger);
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&linger,
sizeof(linger));
break;
}
case PR_SockOpt_Reuseaddr:
case PR_SockOpt_Keepalive:
case PR_SockOpt_NoDelay:
case PR_SockOpt_Broadcast:
case PR_SockOpt_Reuseport: {
PRIntn value = (data->value.reuse_addr) ? 1 : 0;
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&value,
sizeof(PRIntn));
# ifdef LINUX
/* for pt_LinuxSendFile */
if (name == TCP_NODELAY && rv == 0) {
fd->secret->md.tcp_nodelay = value;
}
# endif
break;
}
case PR_SockOpt_McastLoopback: {
PRUint8 xbool = data->value.mcast_loopback ? 1 : 0;
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&xbool,
sizeof(xbool));
break;
}
case PR_SockOpt_RecvBufferSize:
case PR_SockOpt_SendBufferSize:
case PR_SockOpt_MaxSegment: {
PRIntn value = data->value.recv_buffer_size;
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&value,
sizeof(PRIntn));
break;
}
case PR_SockOpt_IpTimeToLive:
case PR_SockOpt_IpTypeOfService: {
rv = setsockopt(fd->secret->md.osfd, level, name,
(char*)&data->value.ip_ttl, sizeof(PRUintn));
break;
}
case PR_SockOpt_McastTimeToLive: {
PRUint8 ttl = data->value.mcast_ttl;
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&ttl,
sizeof(ttl));
break;
}
case PR_SockOpt_AddMember:
case PR_SockOpt_DropMember: {
struct ip_mreq mreq;
mreq.imr_multiaddr.s_addr = data->value.add_member.mcaddr.inet.ip;
mreq.imr_interface.s_addr = data->value.add_member.ifaddr.inet.ip;
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&mreq,
sizeof(mreq));
break;
}
case PR_SockOpt_McastInterface: {
rv = setsockopt(fd->secret->md.osfd, level, name,
(char*)&data->value.mcast_if.inet.ip,
sizeof(data->value.mcast_if.inet.ip));
break;
}
case PR_SockOpt_DontFrag: {
# if !defined(DARWIN) && !defined(LINUX) && !defined(ANDROID)
PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, 0);
rv = PR_FAILURE;
# else
PRIntn value;
# if defined(LINUX) || defined(ANDROID)
value = (data->value.dont_fragment) ? IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
# elif defined(DARWIN)
value = data->value.dont_fragment;
# endif
rv = setsockopt(fd->secret->md.osfd, level, name, (char*)&value,
sizeof(value));
# endif /* !defined(DARWIN) && !defined(LINUX) && !defined(ANDROID)) */
break;
}
default:
PR_NOT_REACHED("Unknown socket option");
break;
}
if (-1 == rv) {
_PR_MD_MAP_SETSOCKOPT_ERROR(errno);
}
}
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_SetSocketOption */
/*****************************************************************************/
/****************************** I/O method objects ***************************/
/*****************************************************************************/
static PRIOMethods _pr_file_methods = {PR_DESC_FILE,
pt_Close,
pt_Read,
pt_Write,
pt_Available_f,
pt_Available64_f,
pt_Fsync,
pt_Seek,
pt_Seek64,
pt_FileInfo,
pt_FileInfo64,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt};
static PRIOMethods _pr_pipe_methods = {PR_DESC_PIPE,
pt_Close,
pt_Read,
pt_Write,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt};
static PRIOMethods _pr_tcp_methods = {
PR_DESC_SOCKET_TCP,
pt_Close,
pt_SocketRead,
pt_SocketWrite,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
pt_Writev,
pt_Connect,
pt_Accept,
pt_Bind,
pt_Listen,
pt_Shutdown,
pt_Recv,
pt_Send,
(PRRecvfromFN)_PR_InvalidInt,
# if defined(LINUX) || defined(DARWIN)
pt_TCP_SendTo, /* This is for TCP Fast Open. Linux uses SendTo function for
this. OSX uses connectx, but we imitate Linux. */
# else
(PRSendtoFN)_PR_InvalidInt,
# endif
pt_Poll,
pt_AcceptRead,
pt_TransmitFile,
pt_GetSockName,
pt_GetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
pt_GetSocketOption,
pt_SetSocketOption,
pt_SendFile,
pt_ConnectContinue,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt};
static PRIOMethods _pr_udp_methods = {PR_DESC_SOCKET_UDP,
pt_Close,
pt_SocketRead,
pt_SocketWrite,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
pt_Writev,
pt_Connect,
(PRAcceptFN)_PR_InvalidDesc,
pt_Bind,
pt_Listen,
pt_Shutdown,
pt_Recv,
pt_Send,
pt_RecvFrom,
pt_SendTo,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
pt_GetSockName,
pt_GetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
pt_GetSocketOption,
pt_SetSocketOption,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt};
static PRIOMethods _pr_socketpollfd_methods = {
(PRDescType)0,
(PRCloseFN)_PR_InvalidStatus,
(PRReadFN)_PR_InvalidInt,
(PRWriteFN)_PR_InvalidInt,
(PRAvailableFN)_PR_InvalidInt,
(PRAvailable64FN)_PR_InvalidInt64,
(PRFsyncFN)_PR_InvalidStatus,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt};
# if defined(HPUX) || defined(SOLARIS) || defined(LINUX) || \
defined(__GNU__) || defined(__GLIBC__) || defined(AIX) || \
defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) || \
defined(NTO) || defined(DARWIN) || defined(RISCOS)
# define _PR_FCNTL_FLAGS O_NONBLOCK
# else
# error "Can't determine architecture"
# endif
/*
* Put a Unix file descriptor in non-blocking mode.
*/
static void pt_MakeFdNonblock(PRIntn osfd) {
PRIntn flags;
flags = fcntl(osfd, F_GETFL, 0);
flags |= _PR_FCNTL_FLAGS;
(void)fcntl(osfd, F_SETFL, flags);
}
/*
* Put a Unix socket fd in non-blocking mode that can
* ideally be inherited by an accepted socket.
*
* Why doesn't pt_MakeFdNonblock do? This is to deal with
* the special case of HP-UX. HP-UX has three kinds of
* non-blocking modes for sockets: the fcntl() O_NONBLOCK
* and O_NDELAY flags and ioctl() FIOSNBIO request. Only
* the ioctl() FIOSNBIO form of non-blocking mode is
* inherited by an accepted socket.
*
* Other platforms just use the generic pt_MakeFdNonblock
* to put a socket in non-blocking mode.
*/
# ifdef HPUX
static void pt_MakeSocketNonblock(PRIntn osfd) {
PRIntn one = 1;
(void)ioctl(osfd, FIOSNBIO, &one);
}
# else
# define pt_MakeSocketNonblock pt_MakeFdNonblock
# endif
static PRFileDesc* pt_SetMethods(PRIntn osfd, PRDescType type,
PRBool isAcceptedSocket, PRBool imported) {
PRFileDesc* fd = _PR_Getfd();
if (fd == NULL) {
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
} else {
fd->secret->md.osfd = osfd;
fd->secret->state = _PR_FILEDESC_OPEN;
if (imported) {
fd->secret->inheritable = _PR_TRI_UNKNOWN;
} else {
/* By default, a Unix fd is not closed on exec. */
# ifdef DEBUG
PRIntn flags;
flags = fcntl(osfd, F_GETFD, 0);
PR_ASSERT(0 == flags);
# endif
fd->secret->inheritable = _PR_TRI_TRUE;
}
switch (type) {
case PR_DESC_FILE:
fd->methods = PR_GetFileMethods();
break;
case PR_DESC_SOCKET_TCP:
fd->methods = PR_GetTCPMethods();
# ifdef _PR_ACCEPT_INHERIT_NONBLOCK
if (!isAcceptedSocket) {
pt_MakeSocketNonblock(osfd);
}
# else
pt_MakeSocketNonblock(osfd);
# endif
break;
case PR_DESC_SOCKET_UDP:
fd->methods = PR_GetUDPMethods();
pt_MakeFdNonblock(osfd);
break;
case PR_DESC_PIPE:
fd->methods = PR_GetPipeMethods();
pt_MakeFdNonblock(osfd);
break;
default:
break;
}
}
return fd;
} /* pt_SetMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetFileMethods(void) {
return &_pr_file_methods;
} /* PR_GetFileMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetPipeMethods(void) {
return &_pr_pipe_methods;
} /* PR_GetPipeMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetTCPMethods(void) {
return &_pr_tcp_methods;
} /* PR_GetTCPMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetUDPMethods(void) {
return &_pr_udp_methods;
} /* PR_GetUDPMethods */
static const PRIOMethods* PR_GetSocketPollFdMethods(void) {
return &_pr_socketpollfd_methods;
} /* PR_GetSocketPollFdMethods */
PR_IMPLEMENT(PRFileDesc*)
PR_AllocFileDesc(PRInt32 osfd, const PRIOMethods* methods) {
PRFileDesc* fd = _PR_Getfd();
if (NULL == fd) {
goto failed;
}
fd->methods = methods;
fd->secret->md.osfd = osfd;
/* Make fd non-blocking */
if (osfd > 2) {
/* Don't mess around with stdin, stdout or stderr */
if (&_pr_tcp_methods == methods) {
pt_MakeSocketNonblock(osfd);
} else {
pt_MakeFdNonblock(osfd);
}
}
fd->secret->state = _PR_FILEDESC_OPEN;
fd->secret->inheritable = _PR_TRI_UNKNOWN;
return fd;
failed:
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return fd;
} /* PR_AllocFileDesc */
# if !defined(_PR_INET6) || defined(_PR_INET6_PROBE)
PR_EXTERN(PRStatus) _pr_push_ipv6toipv4_layer(PRFileDesc* fd);
# if defined(_PR_INET6_PROBE)
extern PRBool _pr_ipv6_is_present(void);
PR_IMPLEMENT(PRBool) _pr_test_ipv6_socket() {
int osfd;
# if defined(DARWIN)
/*
* Disable IPv6 if Darwin version is less than 7.0.0 (OS X 10.3). IPv6 on
*/
{
struct utsname u;
if (uname(&u) != 0 || atoi(u.release) < 7) {
return PR_FALSE;
}
}
# endif
/*
* HP-UX only: HP-UX IPv6 Porting Guide (dated February 2001)
* suggests that we call open("/dev/ip6", O_RDWR) to determine
* whether IPv6 APIs and the IPv6 stack are on the system.
* Our portable test below seems to work fine, so I am using it.
*/
osfd = socket(AF_INET6, SOCK_STREAM, 0);
if (osfd != -1) {
close(osfd);
return PR_TRUE;
}
return PR_FALSE;
}
# endif /* _PR_INET6_PROBE */
# endif
PR_IMPLEMENT(PRFileDesc*)
PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto) {
PRIntn osfd;
PRDescType ftype;
PRFileDesc* fd = NULL;
# if defined(_PR_INET6_PROBE) || !defined(_PR_INET6)
PRInt32 tmp_domain = domain;
# endif
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
if (pt_TestAbort()) {
return NULL;
}
if (PF_INET != domain && PR_AF_INET6 != domain
# if defined(_PR_HAVE_SDP)
&& PR_AF_INET_SDP != domain
# if defined(SOLARIS)
&& PR_AF_INET6_SDP != domain
# endif /* SOLARIS */
# endif /* _PR_HAVE_SDP */
&& PF_UNIX != domain) {
PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
return fd;
}
if (type == SOCK_STREAM) {
ftype = PR_DESC_SOCKET_TCP;
} else if (type == SOCK_DGRAM) {
ftype = PR_DESC_SOCKET_UDP;
} else {
(void)PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
return fd;
}
# if defined(_PR_HAVE_SDP)
# if defined(LINUX)
if (PR_AF_INET_SDP == domain) {
domain = AF_INET_SDP;
}
# elif defined(SOLARIS)
if (PR_AF_INET_SDP == domain) {
domain = AF_INET;
proto = PROTO_SDP;
} else if (PR_AF_INET6_SDP == domain) {
domain = AF_INET6;
proto = PROTO_SDP;
}
# endif /* SOLARIS */
# endif /* _PR_HAVE_SDP */
# if defined(_PR_INET6_PROBE)
if (PR_AF_INET6 == domain) {
domain = _pr_ipv6_is_present() ? AF_INET6 : AF_INET;
}
# elif defined(_PR_INET6)
if (PR_AF_INET6 == domain) {
domain = AF_INET6;
}
# else
if (PR_AF_INET6 == domain) {
domain = AF_INET;
}
# endif
osfd = socket(domain, type, proto);
if (osfd == -1) {
pt_MapError(_PR_MD_MAP_SOCKET_ERROR, errno);
} else {
# ifdef _PR_IPV6_V6ONLY_PROBE
if ((domain == AF_INET6) && _pr_ipv6_v6only_on_by_default) {
int on = 0;
(void)setsockopt(osfd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
}
# endif
fd = pt_SetMethods(osfd, ftype, PR_FALSE, PR_FALSE);
if (fd == NULL) {
close(osfd);
}
}
# ifdef _PR_NEED_SECRET_AF
if (fd != NULL) {
fd->secret->af = domain;
}
# endif
# if defined(_PR_INET6_PROBE) || !defined(_PR_INET6)
if (fd != NULL) {
/*
* For platforms with no support for IPv6
* create layered socket for IPv4-mapped IPv6 addresses
*/
if (PR_AF_INET6 == tmp_domain && PR_AF_INET == domain) {
if (PR_FAILURE == _pr_push_ipv6toipv4_layer(fd)) {
PR_Close(fd);
fd = NULL;
}
}
}
# endif
return fd;
} /* PR_Socket */
/*****************************************************************************/
/****************************** I/O public methods ***************************/
/*****************************************************************************/
PR_IMPLEMENT(PRFileDesc*)
PR_OpenFile(const char* name, PRIntn flags, PRIntn mode) {
PRFileDesc* fd = NULL;
PRIntn syserrno, osfd = -1, osflags = 0;
;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
if (pt_TestAbort()) {
return NULL;
}
if (flags & PR_RDONLY) {
osflags |= O_RDONLY;
}
if (flags & PR_WRONLY) {
osflags |= O_WRONLY;
}
if (flags & PR_RDWR) {
osflags |= O_RDWR;
}
if (flags & PR_APPEND) {
osflags |= O_APPEND;
}
if (flags & PR_TRUNCATE) {
osflags |= O_TRUNC;
}
if (flags & PR_EXCL) {
osflags |= O_EXCL;
}
if (flags & PR_SYNC) {
# if defined(O_SYNC)
osflags |= O_SYNC;
# elif defined(O_FSYNC)
osflags |= O_FSYNC;
# else
# error "Neither O_SYNC nor O_FSYNC is defined on this platform"
# endif
}
/*
** We have to hold the lock across the creation in order to
** enforce the sematics of PR_Rename(). (see the latter for
** more details)
*/
if (flags & PR_CREATE_FILE) {
osflags |= O_CREAT;
if (NULL != _pr_rename_lock) {
PR_Lock(_pr_rename_lock);
}
}
osfd = _md_iovector._open64(name, osflags, mode);
syserrno = errno;
if ((flags & PR_CREATE_FILE) && (NULL != _pr_rename_lock)) {
PR_Unlock(_pr_rename_lock);
}
if (osfd == -1) {
pt_MapError(_PR_MD_MAP_OPEN_ERROR, syserrno);
} else {
fd = pt_SetMethods(osfd, PR_DESC_FILE, PR_FALSE, PR_FALSE);
if (fd == NULL) {
close(osfd); /* $$$ whoops! this is bad $$$ */
}
}
return fd;
} /* PR_OpenFile */
PR_IMPLEMENT(PRFileDesc*) PR_Open(const char* name, PRIntn flags, PRIntn mode) {
return PR_OpenFile(name, flags, mode);
} /* PR_Open */
PR_IMPLEMENT(PRStatus) PR_Delete(const char* name) {
PRIntn rv = -1;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = unlink(name);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_UNLINK_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* PR_Delete */
PR_IMPLEMENT(PRStatus) PR_Access(const char* name, PRAccessHow how) {
PRIntn rv;
if (pt_TestAbort()) {
return PR_FAILURE;
}
switch (how) {
case PR_ACCESS_READ_OK:
rv = access(name, R_OK);
break;
case PR_ACCESS_WRITE_OK:
rv = access(name, W_OK);
break;
case PR_ACCESS_EXISTS:
default:
rv = access(name, F_OK);
}
if (0 == rv) {
return PR_SUCCESS;
}
pt_MapError(_PR_MD_MAP_ACCESS_ERROR, errno);
return PR_FAILURE;
} /* PR_Access */
PR_IMPLEMENT(PRStatus) PR_GetFileInfo(const char* fn, PRFileInfo* info) {
PRInt32 rv = _PR_MD_GETFILEINFO(fn, info);
return (0 == rv) ? PR_SUCCESS : PR_FAILURE;
} /* PR_GetFileInfo */
PR_IMPLEMENT(PRStatus) PR_GetFileInfo64(const char* fn, PRFileInfo64* info) {
PRInt32 rv;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
rv = _PR_MD_GETFILEINFO64(fn, info);
return (0 == rv) ? PR_SUCCESS : PR_FAILURE;
} /* PR_GetFileInfo64 */
PR_IMPLEMENT(PRStatus) PR_Rename(const char* from, const char* to) {
PRIntn rv = -1;
if (pt_TestAbort()) {
return PR_FAILURE;
}
/*
** We have to acquire a lock here to stiffle anybody trying to create
** a new file at the same time. And we have to hold that lock while we
** test to see if the file exists and do the rename. The other place
** where the lock is held is in PR_Open() when possibly creating a
** new file.
*/
PR_Lock(_pr_rename_lock);
rv = access(to, F_OK);
if (0 == rv) {
PR_SetError(PR_FILE_EXISTS_ERROR, 0);
rv = -1;
} else {
rv = rename(from, to);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_RENAME_ERROR, errno);
}
}
PR_Unlock(_pr_rename_lock);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* PR_Rename */
PR_IMPLEMENT(PRStatus) PR_CloseDir(PRDir* dir) {
if (pt_TestAbort()) {
return PR_FAILURE;
}
if (NULL != dir->md.d) {
if (closedir(dir->md.d) == -1) {
_PR_MD_MAP_CLOSEDIR_ERROR(errno);
return PR_FAILURE;
}
dir->md.d = NULL;
PR_DELETE(dir);
}
return PR_SUCCESS;
} /* PR_CloseDir */
PR_IMPLEMENT(PRStatus) PR_MakeDir(const char* name, PRIntn mode) {
PRInt32 rv = -1;
if (pt_TestAbort()) {
return PR_FAILURE;
}
/*
** This lock is used to enforce rename semantics as described
** in PR_Rename.
*/
if (NULL != _pr_rename_lock) {
PR_Lock(_pr_rename_lock);
}
rv = mkdir(name, mode);
if (-1 == rv) {
pt_MapError(_PR_MD_MAP_MKDIR_ERROR, errno);
}
if (NULL != _pr_rename_lock) {
PR_Unlock(_pr_rename_lock);
}
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* PR_Makedir */
PR_IMPLEMENT(PRStatus) PR_MkDir(const char* name, PRIntn mode) {
return PR_MakeDir(name, mode);
} /* PR_Mkdir */
PR_IMPLEMENT(PRStatus) PR_RmDir(const char* name) {
PRInt32 rv;
if (pt_TestAbort()) {
return PR_FAILURE;
}
rv = rmdir(name);
if (0 == rv) {
return PR_SUCCESS;
}
pt_MapError(_PR_MD_MAP_RMDIR_ERROR, errno);
return PR_FAILURE;
} /* PR_Rmdir */
PR_IMPLEMENT(PRDir*) PR_OpenDir(const char* name) {
DIR* osdir;
PRDir* dir = NULL;
if (pt_TestAbort()) {
return dir;
}
osdir = opendir(name);
if (osdir == NULL) {
pt_MapError(_PR_MD_MAP_OPENDIR_ERROR, errno);
} else {
dir = PR_NEWZAP(PRDir);
if (dir) {
dir->md.d = osdir;
} else {
(void)closedir(osdir);
}
}
return dir;
} /* PR_OpenDir */
static PRInt32 _pr_poll_with_poll(PRPollDesc* pds, PRIntn npds,
PRIntervalTime timeout) {
PRInt32 ready = 0;
/*
* For restarting poll() if it is interrupted by a signal.
* We use these variables to figure out how much time has
* elapsed and how much of the timeout still remains.
*/
PRIntervalTime start = 0, elapsed, remaining;
if (pt_TestAbort()) {
return -1;
}
if (0 == npds) {
PR_Sleep(timeout);
} else {
# define STACK_POLL_DESC_COUNT 64
struct pollfd stack_syspoll[STACK_POLL_DESC_COUNT];
struct pollfd* syspoll;
PRIntn index, msecs;
if (npds <= STACK_POLL_DESC_COUNT) {
syspoll = stack_syspoll;
} else {
PRThread* me = PR_GetCurrentThread();
if (npds > me->syspoll_count) {
PR_Free(me->syspoll_list);
me->syspoll_list =
(struct pollfd*)PR_MALLOC(npds * sizeof(struct pollfd));
if (NULL == me->syspoll_list) {
me->syspoll_count = 0;
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
me->syspoll_count = npds;
}
syspoll = me->syspoll_list;
}
for (index = 0; index < npds; ++index) {
PRInt16 in_flags_read = 0, in_flags_write = 0;
PRInt16 out_flags_read = 0, out_flags_write = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) {
if (pds[index].in_flags & PR_POLL_READ) {
in_flags_read = (pds[index].fd->methods->poll)(
pds[index].fd, pds[index].in_flags & ~PR_POLL_WRITE,
&out_flags_read);
}
if (pds[index].in_flags & PR_POLL_WRITE) {
in_flags_write = (pds[index].fd->methods->poll)(
pds[index].fd, pds[index].in_flags & ~PR_POLL_READ,
&out_flags_write);
}
if ((0 != (in_flags_read & out_flags_read)) ||
(0 != (in_flags_write & out_flags_write))) {
/* this one is ready right now */
if (0 == ready) {
/*
* We will return without calling the system
* poll function. So zero the out_flags
* fields of all the poll descriptors before
* this one.
*/
int i;
for (i = 0; i < index; i++) {
pds[i].out_flags = 0;
}
}
ready += 1;
pds[index].out_flags = out_flags_read | out_flags_write;
} else {
/* now locate the NSPR layer at the bottom of the stack */
PRFileDesc* bottom =
PR_GetIdentitiesLayer(pds[index].fd, PR_NSPR_IO_LAYER);
/* ignore a socket without PR_NSPR_IO_LAYER available */
pds[index].out_flags = 0; /* pre-condition */
if ((NULL != bottom) &&
(_PR_FILEDESC_OPEN == bottom->secret->state)) {
if (0 == ready) {
syspoll[index].fd = bottom->secret->md.osfd;
syspoll[index].events = 0;
if (in_flags_read & PR_POLL_READ) {
pds[index].out_flags |= _PR_POLL_READ_SYS_READ;
syspoll[index].events |= POLLIN;
}
if (in_flags_read & PR_POLL_WRITE) {
pds[index].out_flags |= _PR_POLL_READ_SYS_WRITE;
syspoll[index].events |= POLLOUT;
}
if (in_flags_write & PR_POLL_READ) {
pds[index].out_flags |= _PR_POLL_WRITE_SYS_READ;
syspoll[index].events |= POLLIN;
}
if (in_flags_write & PR_POLL_WRITE) {
pds[index].out_flags |= _PR_POLL_WRITE_SYS_WRITE;
syspoll[index].events |= POLLOUT;
}
if (pds[index].in_flags & PR_POLL_EXCEPT) {
syspoll[index].events |= POLLPRI;
}
}
} else {
if (0 == ready) {
int i;
for (i = 0; i < index; i++) {
pds[i].out_flags = 0;
}
}
ready += 1; /* this will cause an abrupt return */
pds[index].out_flags = PR_POLL_NVAL; /* bogii */
}
}
} else {
/* make poll() ignore this entry */
syspoll[index].fd = -1;
syspoll[index].events = 0;
pds[index].out_flags = 0;
}
}
if (0 == ready) {
switch (timeout) {
case PR_INTERVAL_NO_WAIT:
msecs = 0;
break;
case PR_INTERVAL_NO_TIMEOUT:
msecs = -1;
break;
default:
msecs = PR_IntervalToMilliseconds(timeout);
start = PR_IntervalNow();
}
retry:
ready = poll(syspoll, npds, msecs);
if (-1 == ready) {
PRIntn oserror = errno;
if (EINTR == oserror) {
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
goto retry;
} else if (timeout == PR_INTERVAL_NO_WAIT) {
ready = 0; /* don't retry, just time out */
} else {
elapsed = (PRIntervalTime)(PR_IntervalNow() - start);
if (elapsed > timeout) {
ready = 0; /* timed out */
} else {
remaining = timeout - elapsed;
msecs = PR_IntervalToMilliseconds(remaining);
goto retry;
}
}
} else {
_PR_MD_MAP_POLL_ERROR(oserror);
}
} else if (ready > 0) {
for (index = 0; index < npds; ++index) {
PRInt16 out_flags = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) {
if (0 != syspoll[index].revents) {
if (syspoll[index].revents & POLLIN) {
if (pds[index].out_flags & _PR_POLL_READ_SYS_READ) {
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags & _PR_POLL_WRITE_SYS_READ) {
out_flags |= PR_POLL_WRITE;
}
}
if (syspoll[index].revents & POLLOUT) {
if (pds[index].out_flags & _PR_POLL_READ_SYS_WRITE) {
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags & _PR_POLL_WRITE_SYS_WRITE) {
out_flags |= PR_POLL_WRITE;
}
}
if (syspoll[index].revents & POLLPRI) {
out_flags |= PR_POLL_EXCEPT;
}
if (syspoll[index].revents & POLLERR) {
out_flags |= PR_POLL_ERR;
}
if (syspoll[index].revents & POLLNVAL) {
out_flags |= PR_POLL_NVAL;
}
if (syspoll[index].revents & POLLHUP) {
out_flags |= PR_POLL_HUP;
}
}
}
pds[index].out_flags = out_flags;
}
}
}
}
return ready;
} /* _pr_poll_with_poll */
# if defined(_PR_POLL_WITH_SELECT)
/*
* HPUX report the POLLHUP event for a socket when the
* shutdown(SHUT_WR) operation is called for the remote end, even though
* the socket is still writeable. Use select(), instead of poll(), to
* workaround this problem.
*/
static PRInt32 _pr_poll_with_select(PRPollDesc* pds, PRIntn npds,
PRIntervalTime timeout) {
PRInt32 ready = 0;
/*
* For restarting select() if it is interrupted by a signal.
* We use these variables to figure out how much time has
* elapsed and how much of the timeout still remains.
*/
PRIntervalTime start = 0, elapsed, remaining;
if (pt_TestAbort()) {
return -1;
}
if (0 == npds) {
PR_Sleep(timeout);
} else {
# define STACK_POLL_DESC_COUNT 64
int stack_selectfd[STACK_POLL_DESC_COUNT];
int* selectfd;
fd_set rd, wr, ex, *rdp = NULL, *wrp = NULL, *exp = NULL;
struct timeval tv, *tvp;
PRIntn index, msecs, maxfd = 0;
if (npds <= STACK_POLL_DESC_COUNT) {
selectfd = stack_selectfd;
} else {
PRThread* me = PR_GetCurrentThread();
if (npds > me->selectfd_count) {
PR_Free(me->selectfd_list);
me->selectfd_list = (int*)PR_MALLOC(npds * sizeof(int));
if (NULL == me->selectfd_list) {
me->selectfd_count = 0;
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
me->selectfd_count = npds;
}
selectfd = me->selectfd_list;
}
FD_ZERO(&rd);
FD_ZERO(&wr);
FD_ZERO(&ex);
for (index = 0; index < npds; ++index) {
PRInt16 in_flags_read = 0, in_flags_write = 0;
PRInt16 out_flags_read = 0, out_flags_write = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) {
if (pds[index].in_flags & PR_POLL_READ) {
in_flags_read = (pds[index].fd->methods->poll)(
pds[index].fd, pds[index].in_flags & ~PR_POLL_WRITE,
&out_flags_read);
}
if (pds[index].in_flags & PR_POLL_WRITE) {
in_flags_write = (pds[index].fd->methods->poll)(
pds[index].fd, pds[index].in_flags & ~PR_POLL_READ,
&out_flags_write);
}
if ((0 != (in_flags_read & out_flags_read)) ||
(0 != (in_flags_write & out_flags_write))) {
/* this one is ready right now */
if (0 == ready) {
/*
* We will return without calling the system
* poll function. So zero the out_flags
* fields of all the poll descriptors before
* this one.
*/
int i;
for (i = 0; i < index; i++) {
pds[i].out_flags = 0;
}
}
ready += 1;
pds[index].out_flags = out_flags_read | out_flags_write;
} else {
/* now locate the NSPR layer at the bottom of the stack */
PRFileDesc* bottom =
PR_GetIdentitiesLayer(pds[index].fd, PR_NSPR_IO_LAYER);
/* ignore a socket without PR_NSPR_IO_LAYER available */
pds[index].out_flags = 0; /* pre-condition */
if ((NULL != bottom) &&
(_PR_FILEDESC_OPEN == bottom->secret->state)) {
if (0 == ready) {
PRBool add_to_rd = PR_FALSE;
PRBool add_to_wr = PR_FALSE;
PRBool add_to_ex = PR_FALSE;
selectfd[index] = bottom->secret->md.osfd;
if (in_flags_read & PR_POLL_READ) {
pds[index].out_flags |= _PR_POLL_READ_SYS_READ;
add_to_rd = PR_TRUE;
}
if (in_flags_read & PR_POLL_WRITE) {
pds[index].out_flags |= _PR_POLL_READ_SYS_WRITE;
add_to_wr = PR_TRUE;
}
if (in_flags_write & PR_POLL_READ) {
pds[index].out_flags |= _PR_POLL_WRITE_SYS_READ;
add_to_rd = PR_TRUE;
}
if (in_flags_write & PR_POLL_WRITE) {
pds[index].out_flags |= _PR_POLL_WRITE_SYS_WRITE;
add_to_wr = PR_TRUE;
}
if (pds[index].in_flags & PR_POLL_EXCEPT) {
add_to_ex = PR_TRUE;
}
if ((selectfd[index] > maxfd) &&
(add_to_rd || add_to_wr || add_to_ex)) {
maxfd = selectfd[index];
/*
* If maxfd is too large to be used with
* select, fall back to calling poll.
*/
if (maxfd >= FD_SETSIZE) {
break;
}
}
if (add_to_rd) {
FD_SET(bottom->secret->md.osfd, &rd);
rdp = &rd;
}
if (add_to_wr) {
FD_SET(bottom->secret->md.osfd, &wr);
wrp = ≀
}
if (add_to_ex) {
FD_SET(bottom->secret->md.osfd, &ex);
exp = &ex;
}
}
} else {
if (0 == ready) {
int i;
for (i = 0; i < index; i++) {
pds[i].out_flags = 0;
}
}
ready += 1; /* this will cause an abrupt return */
pds[index].out_flags = PR_POLL_NVAL; /* bogii */
}
}
} else {
pds[index].out_flags = 0;
}
}
if (0 == ready) {
if (maxfd >= FD_SETSIZE) {
/*
* maxfd too large to be used with select, fall back to
* calling poll
*/
return (_pr_poll_with_poll(pds, npds, timeout));
}
switch (timeout) {
case PR_INTERVAL_NO_WAIT:
tv.tv_sec = 0;
tv.tv_usec = 0;
tvp = &tv;
break;
case PR_INTERVAL_NO_TIMEOUT:
tvp = NULL;
break;
default:
msecs = PR_IntervalToMilliseconds(timeout);
tv.tv_sec = msecs / PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC;
tvp = &tv;
start = PR_IntervalNow();
}
retry:
ready = select(maxfd + 1, rdp, wrp, exp, tvp);
if (-1 == ready) {
PRIntn oserror = errno;
if ((EINTR == oserror) || (EAGAIN == oserror)) {
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
goto retry;
} else if (timeout == PR_INTERVAL_NO_WAIT) {
ready = 0; /* don't retry, just time out */
} else {
elapsed = (PRIntervalTime)(PR_IntervalNow() - start);
if (elapsed > timeout) {
ready = 0; /* timed out */
} else {
remaining = timeout - elapsed;
msecs = PR_IntervalToMilliseconds(remaining);
tv.tv_sec = msecs / PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC;
goto retry;
}
}
} else if (EBADF == oserror) {
/* find all the bad fds */
ready = 0;
for (index = 0; index < npds; ++index) {
pds[index].out_flags = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) {
if (fcntl(selectfd[index], F_GETFL, 0) == -1) {
pds[index].out_flags = PR_POLL_NVAL;
ready++;
}
}
}
} else {
_PR_MD_MAP_SELECT_ERROR(oserror);
}
} else if (ready > 0) {
for (index = 0; index < npds; ++index) {
PRInt16 out_flags = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags)) {
if (FD_ISSET(selectfd[index], &rd)) {
if (pds[index].out_flags & _PR_POLL_READ_SYS_READ) {
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags & _PR_POLL_WRITE_SYS_READ) {
out_flags |= PR_POLL_WRITE;
}
}
if (FD_ISSET(selectfd[index], &wr)) {
if (pds[index].out_flags & _PR_POLL_READ_SYS_WRITE) {
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags & _PR_POLL_WRITE_SYS_WRITE) {
out_flags |= PR_POLL_WRITE;
}
}
if (FD_ISSET(selectfd[index], &ex)) {
out_flags |= PR_POLL_EXCEPT;
}
}
pds[index].out_flags = out_flags;
}
}
}
}
return ready;
} /* _pr_poll_with_select */
# endif /* _PR_POLL_WITH_SELECT */
PR_IMPLEMENT(PRInt32)
PR_Poll(PRPollDesc* pds, PRIntn npds, PRIntervalTime timeout) {
# if defined(_PR_POLL_WITH_SELECT)
return (_pr_poll_with_select(pds, npds, timeout));
# else
return (_pr_poll_with_poll(pds, npds, timeout));
# endif
}
PR_IMPLEMENT(PRDirEntry*) PR_ReadDir(PRDir* dir, PRDirFlags flags) {
struct dirent* dp;
if (pt_TestAbort()) {
return NULL;
}
for (;;) {
errno = 0;
dp = readdir(dir->md.d);
if (NULL == dp) {
pt_MapError(_PR_MD_MAP_READDIR_ERROR, errno);
return NULL;
}
if ((flags & PR_SKIP_DOT) && ('.' == dp->d_name[0]) &&
(0 == dp->d_name[1])) {
continue;
}
if ((flags & PR_SKIP_DOT_DOT) && ('.' == dp->d_name[0]) &&
('.' == dp->d_name[1]) && (0 == dp->d_name[2])) {
continue;
}
if ((flags & PR_SKIP_HIDDEN) && ('.' == dp->d_name[0])) {
continue;
}
break;
}
dir->d.name = dp->d_name;
return &dir->d;
} /* PR_ReadDir */
PR_IMPLEMENT(PRFileDesc*) PR_NewUDPSocket(void) {
PRIntn domain = PF_INET;
return PR_Socket(domain, SOCK_DGRAM, 0);
} /* PR_NewUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_NewTCPSocket(void) {
PRIntn domain = PF_INET;
return PR_Socket(domain, SOCK_STREAM, 0);
} /* PR_NewTCPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_OpenUDPSocket(PRIntn af) {
return PR_Socket(af, SOCK_DGRAM, 0);
} /* PR_NewUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_OpenTCPSocket(PRIntn af) {
return PR_Socket(af, SOCK_STREAM, 0);
} /* PR_NewTCPSocket */
PR_IMPLEMENT(PRStatus) PR_NewTCPSocketPair(PRFileDesc* fds[2]) {
PRInt32 osfd[2];
if (pt_TestAbort()) {
return PR_FAILURE;
}
if (socketpair(AF_UNIX, SOCK_STREAM, 0, osfd) == -1) {
pt_MapError(_PR_MD_MAP_SOCKETPAIR_ERROR, errno);
return PR_FAILURE;
}
fds[0] = pt_SetMethods(osfd[0], PR_DESC_SOCKET_TCP, PR_FALSE, PR_FALSE);
if (fds[0] == NULL) {
close(osfd[0]);
close(osfd[1]);
return PR_FAILURE;
}
fds[1] = pt_SetMethods(osfd[1], PR_DESC_SOCKET_TCP, PR_FALSE, PR_FALSE);
if (fds[1] == NULL) {
PR_Close(fds[0]);
close(osfd[1]);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* PR_NewTCPSocketPair */
PR_IMPLEMENT(PRStatus)
PR_CreatePipe(PRFileDesc** readPipe, PRFileDesc** writePipe) {
int pipefd[2];
if (pt_TestAbort()) {
return PR_FAILURE;
}
if (pipe(pipefd) == -1) {
/* XXX map pipe error */
PR_SetError(PR_UNKNOWN_ERROR, errno);
return PR_FAILURE;
}
*readPipe = pt_SetMethods(pipefd[0], PR_DESC_PIPE, PR_FALSE, PR_FALSE);
if (NULL == *readPipe) {
close(pipefd[0]);
close(pipefd[1]);
return PR_FAILURE;
}
*writePipe = pt_SetMethods(pipefd[1], PR_DESC_PIPE, PR_FALSE, PR_FALSE);
if (NULL == *writePipe) {
PR_Close(*readPipe);
close(pipefd[1]);
return PR_FAILURE;
}
return PR_SUCCESS;
}
/*
** Set the inheritance attribute of a file descriptor.
*/
PR_IMPLEMENT(PRStatus) PR_SetFDInheritable(PRFileDesc* fd, PRBool inheritable) {
/*
* Only a non-layered, NSPR file descriptor can be inherited
* by a child process.
*/
if (fd->identity != PR_NSPR_IO_LAYER) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
if (fd->secret->inheritable != inheritable) {
if (fcntl(fd->secret->md.osfd, F_SETFD, inheritable ? 0 : FD_CLOEXEC) ==
-1) {
_PR_MD_MAP_DEFAULT_ERROR(errno);
return PR_FAILURE;
}
fd->secret->inheritable = (_PRTriStateBool)inheritable;
}
return PR_SUCCESS;
}
/*****************************************************************************/
/***************************** I/O friends methods ***************************/
/*****************************************************************************/
PR_IMPLEMENT(PRFileDesc*) PR_ImportFile(PRInt32 osfd) {
PRFileDesc* fd;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
fd = pt_SetMethods(osfd, PR_DESC_FILE, PR_FALSE, PR_TRUE);
if (NULL == fd) {
close(osfd);
}
return fd;
} /* PR_ImportFile */
PR_IMPLEMENT(PRFileDesc*) PR_ImportPipe(PRInt32 osfd) {
PRFileDesc* fd;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
fd = pt_SetMethods(osfd, PR_DESC_PIPE, PR_FALSE, PR_TRUE);
if (NULL == fd) {
close(osfd);
}
return fd;
} /* PR_ImportPipe */
PR_IMPLEMENT(PRFileDesc*) PR_ImportTCPSocket(PRInt32 osfd) {
PRFileDesc* fd;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
fd = pt_SetMethods(osfd, PR_DESC_SOCKET_TCP, PR_FALSE, PR_TRUE);
if (NULL == fd) {
close(osfd);
}
# ifdef _PR_NEED_SECRET_AF
if (NULL != fd) {
fd->secret->af = PF_INET;
}
# endif
return fd;
} /* PR_ImportTCPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_ImportUDPSocket(PRInt32 osfd) {
PRFileDesc* fd;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
fd = pt_SetMethods(osfd, PR_DESC_SOCKET_UDP, PR_FALSE, PR_TRUE);
if (NULL == fd) {
close(osfd);
}
return fd;
} /* PR_ImportUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_CreateSocketPollFd(PRInt32 osfd) {
PRFileDesc* fd;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
fd = _PR_Getfd();
if (fd == NULL) {
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
} else {
fd->secret->md.osfd = osfd;
fd->secret->inheritable = _PR_TRI_FALSE;
fd->secret->state = _PR_FILEDESC_OPEN;
fd->methods = PR_GetSocketPollFdMethods();
}
return fd;
} /* PR_CreateSocketPollFD */
PR_IMPLEMENT(PRStatus) PR_DestroySocketPollFd(PRFileDesc* fd) {
if (NULL == fd) {
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
fd->secret->state = _PR_FILEDESC_CLOSED;
_PR_Putfd(fd);
return PR_SUCCESS;
} /* PR_DestroySocketPollFd */
PR_IMPLEMENT(PRInt32) PR_FileDesc2NativeHandle(PRFileDesc* bottom) {
PRInt32 osfd = -1;
bottom =
(NULL == bottom) ? NULL : PR_GetIdentitiesLayer(bottom, PR_NSPR_IO_LAYER);
if (NULL == bottom) {
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
} else {
osfd = bottom->secret->md.osfd;
}
return osfd;
} /* PR_FileDesc2NativeHandle */
PR_IMPLEMENT(void)
PR_ChangeFileDescNativeHandle(PRFileDesc* fd, PRInt32 handle) {
if (fd) {
fd->secret->md.osfd = handle;
}
} /* PR_ChangeFileDescNativeHandle*/
PR_IMPLEMENT(PRStatus) PR_LockFile(PRFileDesc* fd) {
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) {
return PR_FAILURE;
}
PR_Lock(_pr_flock_lock);
while (-1 == fd->secret->lockCount) {
PR_WaitCondVar(_pr_flock_cv, PR_INTERVAL_NO_TIMEOUT);
}
if (0 == fd->secret->lockCount) {
fd->secret->lockCount = -1;
PR_Unlock(_pr_flock_lock);
status = _PR_MD_LOCKFILE(fd->secret->md.osfd);
PR_Lock(_pr_flock_lock);
fd->secret->lockCount = (PR_SUCCESS == status) ? 1 : 0;
PR_NotifyAllCondVar(_pr_flock_cv);
} else {
fd->secret->lockCount += 1;
}
PR_Unlock(_pr_flock_lock);
return status;
} /* PR_LockFile */
PR_IMPLEMENT(PRStatus) PR_TLockFile(PRFileDesc* fd) {
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) {
return PR_FAILURE;
}
PR_Lock(_pr_flock_lock);
if (0 == fd->secret->lockCount) {
status = _PR_MD_TLOCKFILE(fd->secret->md.osfd);
if (PR_SUCCESS == status) {
fd->secret->lockCount = 1;
}
} else {
fd->secret->lockCount += 1;
}
PR_Unlock(_pr_flock_lock);
return status;
} /* PR_TLockFile */
PR_IMPLEMENT(PRStatus) PR_UnlockFile(PRFileDesc* fd) {
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) {
return PR_FAILURE;
}
PR_Lock(_pr_flock_lock);
if (fd->secret->lockCount == 1) {
status = _PR_MD_UNLOCKFILE(fd->secret->md.osfd);
if (PR_SUCCESS == status) {
fd->secret->lockCount = 0;
}
} else {
fd->secret->lockCount -= 1;
}
PR_Unlock(_pr_flock_lock);
return status;
}
/*
* The next two entry points should not be in the API, but they are
* defined here for historical (or hysterical) reasons.
*/
PR_IMPLEMENT(PRInt32) PR_GetSysfdTableMax(void) {
# if defined(AIX)
return sysconf(_SC_OPEN_MAX);
# else
struct rlimit rlim;
if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
return -1;
}
return rlim.rlim_max;
# endif
}
PR_IMPLEMENT(PRInt32) PR_SetSysfdTableSize(PRIntn table_size) {
# if defined(AIX)
return -1;
# else
struct rlimit rlim;
PRInt32 tableMax = PR_GetSysfdTableMax();
if (tableMax < 0) {
return -1;
}
rlim.rlim_max = tableMax;
/* Grow as much as we can; even if too big */
if (rlim.rlim_max < table_size) {
rlim.rlim_cur = rlim.rlim_max;
} else {
rlim.rlim_cur = table_size;
}
if (setrlimit(RLIMIT_NOFILE, &rlim) < 0) {
return -1;
}
return rlim.rlim_cur;
# endif
}
/*
* PR_Stat is supported for backward compatibility; some existing Java
* code uses it. New code should use PR_GetFileInfo.
*/
# ifndef NO_NSPR_10_SUPPORT
PR_IMPLEMENT(PRInt32) PR_Stat(const char* name, struct stat* buf) {
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_Stat", "PR_GetFileInfo");
}
if (pt_TestAbort()) {
return -1;
}
if (-1 == stat(name, buf)) {
pt_MapError(_PR_MD_MAP_STAT_ERROR, errno);
return -1;
} else {
return 0;
}
}
# endif /* ! NO_NSPR_10_SUPPORT */
PR_IMPLEMENT(void) PR_FD_ZERO(PR_fd_set* set) {
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_ZERO (PR_Select)", "PR_Poll");
}
memset(set, 0, sizeof(PR_fd_set));
}
PR_IMPLEMENT(void) PR_FD_SET(PRFileDesc* fh, PR_fd_set* set) {
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_SET (PR_Select)", "PR_Poll");
}
PR_ASSERT(set->hsize < PR_MAX_SELECT_DESC);
set->harray[set->hsize++] = fh;
}
PR_IMPLEMENT(void) PR_FD_CLR(PRFileDesc* fh, PR_fd_set* set) {
PRUint32 index, index2;
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_CLR (PR_Select)", "PR_Poll");
}
for (index = 0; index < set->hsize; index++)
if (set->harray[index] == fh) {
for (index2 = index; index2 < (set->hsize - 1); index2++) {
set->harray[index2] = set->harray[index2 + 1];
}
set->hsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_ISSET(PRFileDesc* fh, PR_fd_set* set) {
PRUint32 index;
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_ISSET (PR_Select)", "PR_Poll");
}
for (index = 0; index < set->hsize; index++)
if (set->harray[index] == fh) {
return 1;
}
return 0;
}
PR_IMPLEMENT(void) PR_FD_NSET(PRInt32 fd, PR_fd_set* set) {
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_NSET (PR_Select)", "PR_Poll");
}
PR_ASSERT(set->nsize < PR_MAX_SELECT_DESC);
set->narray[set->nsize++] = fd;
}
PR_IMPLEMENT(void) PR_FD_NCLR(PRInt32 fd, PR_fd_set* set) {
PRUint32 index, index2;
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_NCLR (PR_Select)", "PR_Poll");
}
for (index = 0; index < set->nsize; index++)
if (set->narray[index] == fd) {
for (index2 = index; index2 < (set->nsize - 1); index2++) {
set->narray[index2] = set->narray[index2 + 1];
}
set->nsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_NISSET(PRInt32 fd, PR_fd_set* set) {
PRUint32 index;
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_FD_NISSET (PR_Select)", "PR_Poll");
}
for (index = 0; index < set->nsize; index++)
if (set->narray[index] == fd) {
return 1;
}
return 0;
}
# include <sys/types.h>
# include <sys/time.h>
# if !defined(HPUX) && !defined(LINUX) && !defined(__GNU__) && \
!defined(__GLIBC__)
# include <sys/select.h>
# endif
static PRInt32 _PR_getset(PR_fd_set* pr_set, fd_set* set) {
PRUint32 index;
PRInt32 max = 0;
if (!pr_set) {
return 0;
}
FD_ZERO(set);
/* First set the pr file handle osfds */
for (index = 0; index < pr_set->hsize; index++) {
FD_SET(pr_set->harray[index]->secret->md.osfd, set);
if (pr_set->harray[index]->secret->md.osfd > max) {
max = pr_set->harray[index]->secret->md.osfd;
}
}
/* Second set the native osfds */
for (index = 0; index < pr_set->nsize; index++) {
FD_SET(pr_set->narray[index], set);
if (pr_set->narray[index] > max) {
max = pr_set->narray[index];
}
}
return max;
}
static void _PR_setset(PR_fd_set* pr_set, fd_set* set) {
PRUint32 index, last_used;
if (!pr_set) {
return;
}
for (last_used = 0, index = 0; index < pr_set->hsize; index++) {
if (FD_ISSET(pr_set->harray[index]->secret->md.osfd, set)) {
pr_set->harray[last_used++] = pr_set->harray[index];
}
}
pr_set->hsize = last_used;
for (last_used = 0, index = 0; index < pr_set->nsize; index++) {
if (FD_ISSET(pr_set->narray[index], set)) {
pr_set->narray[last_used++] = pr_set->narray[index];
}
}
pr_set->nsize = last_used;
}
PR_IMPLEMENT(PRInt32)
PR_Select(PRInt32 unused, PR_fd_set* pr_rd, PR_fd_set* pr_wr, PR_fd_set* pr_ex,
PRIntervalTime timeout) {
fd_set rd, wr, ex;
struct timeval tv, *tvp;
PRInt32 max, max_fd;
PRInt32 rv;
/*
* For restarting select() if it is interrupted by a Unix signal.
* We use these variables to figure out how much time has elapsed
* and how much of the timeout still remains.
*/
PRIntervalTime start = 0, elapsed, remaining;
static PRBool unwarned = PR_TRUE;
if (unwarned) {
unwarned = _PR_Obsolete("PR_Select", "PR_Poll");
}
FD_ZERO(&rd);
FD_ZERO(&wr);
FD_ZERO(&ex);
max_fd = _PR_getset(pr_rd, &rd);
max_fd = (max = _PR_getset(pr_wr, &wr)) > max_fd ? max : max_fd;
max_fd = (max = _PR_getset(pr_ex, &ex)) > max_fd ? max : max_fd;
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
tvp = NULL;
} else {
tv.tv_sec = (PRInt32)PR_IntervalToSeconds(timeout);
tv.tv_usec = (PRInt32)PR_IntervalToMicroseconds(
timeout - PR_SecondsToInterval(tv.tv_sec));
tvp = &tv;
start = PR_IntervalNow();
}
retry:
rv = select(max_fd + 1, (_PRSelectFdSetArg_t)&rd, (_PRSelectFdSetArg_t)&wr,
(_PRSelectFdSetArg_t)&ex, tvp);
if (rv == -1 && errno == EINTR) {
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
goto retry;
} else {
elapsed = (PRIntervalTime)(PR_IntervalNow() - start);
if (elapsed > timeout) {
rv = 0; /* timed out */
} else {
remaining = timeout - elapsed;
tv.tv_sec = (PRInt32)PR_IntervalToSeconds(remaining);
tv.tv_usec = (PRInt32)PR_IntervalToMicroseconds(
remaining - PR_SecondsToInterval(tv.tv_sec));
goto retry;
}
}
}
if (rv > 0) {
_PR_setset(pr_rd, &rd);
_PR_setset(pr_wr, &wr);
_PR_setset(pr_ex, &ex);
} else if (rv == -1) {
pt_MapError(_PR_MD_MAP_SELECT_ERROR, errno);
}
return rv;
}
#endif /* defined(_PR_PTHREADS) */
#ifdef MOZ_UNICODE
/* ================ UTF16 Interfaces ================================ */
PR_IMPLEMENT(PRFileDesc*)
PR_OpenFileUTF16(const PRUnichar* name, PRIntn flags, PRIntn mode) {
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRStatus) PR_CloseDirUTF16(PRDir* dir) {
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
PR_IMPLEMENT(PRDirUTF16*) PR_OpenDirUTF16(const PRUnichar* name) {
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRDirEntryUTF16*)
PR_ReadDirUTF16(PRDirUTF16* dir, PRDirFlags flags) {
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRStatus)
PR_GetFileInfo64UTF16(const PRUnichar* fn, PRFileInfo64* info) {
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
/* ================ UTF16 Interfaces ================================ */
#endif /* MOZ_UNICODE */
/* ptio.c */