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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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: append.c
** Description: Testing File writes where PR_APPEND was used on open
**
** append attempts to verify that a file opened with PR_APPEND
** will always append to the end of file, regardless where the
** current file pointer is positioned. To do this, PR_Seek() is
** called before each write with the position set to beginning of
** file. Subsequent writes should always append.
** The file is read back, summing the integer data written to the
** file. If the expected result is equal, the test passes.
**
** See BugSplat: 4090
*/
#include "plgetopt.h"
#include "nspr.h"
#include <stdio.h>
#include <stdlib.h>
PRIntn debug = 0;
PRIntn verbose = 0;
PRBool failedAlready = PR_FALSE;
const PRInt32 addedBytes = 1000;
const PRInt32 buf = 1; /* constant written to fd, addedBytes times */
PRInt32 inBuf; /* read it back into here */
int main(int argc, char** argv) {
PRStatus rc;
PRInt32 rv;
PRFileDesc* fd;
PRIntn i;
PRInt32 sum = 0;
{ /* Get command line options */
PLOptStatus os;
PLOptState* opt = PL_CreateOptState(argc, argv, "vd");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
if (PL_OPT_BAD == os) {
continue;
}
switch (opt->option) {
case 'd': /* debug */
debug = 1;
break;
case 'v': /* verbose */
verbose = 1;
break;
default:
break;
}
}
PL_DestroyOptState(opt);
} /* end block "Get command line options" */
/* ---------------------------------------------------------------------- */
fd = PR_Open("./tmp-nsprAppend",
(PR_APPEND | PR_CREATE_FILE | PR_TRUNCATE | PR_WRONLY), 0666);
if (NULL == fd) {
if (debug) {
printf("PR_Open() failed for writing: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
for (i = 0; i < addedBytes; i++) {
rv = PR_Write(fd, &buf, sizeof(buf));
if (sizeof(buf) != rv) {
if (debug) {
printf("PR_Write() failed: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
rv = PR_Seek(fd, 0, PR_SEEK_SET);
if (-1 == rv) {
if (debug) {
printf("PR_Seek() failed: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
}
rc = PR_Close(fd);
if (PR_FAILURE == rc) {
if (debug) {
printf("PR_Close() failed after writing: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
/* ---------------------------------------------------------------------- */
fd = PR_Open("./tmp-nsprAppend", PR_RDONLY, 0);
if (NULL == fd) {
if (debug) {
printf("PR_Open() failed for reading: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
for (i = 0; i < addedBytes; i++) {
rv = PR_Read(fd, &inBuf, sizeof(inBuf));
if (sizeof(inBuf) != rv) {
if (debug) {
printf("PR_Write() failed: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
sum += inBuf;
}
rc = PR_Close(fd);
if (PR_FAILURE == rc) {
if (debug) {
printf("PR_Close() failed after reading: %d\n", PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
if (sum != addedBytes) {
if (debug) {
printf("Uh Oh! addedBytes: %d. Sum: %d\n", addedBytes, sum);
}
failedAlready = PR_TRUE;
goto Finished;
}
/* ---------------------------------------------------------------------- */
Finished:
if (debug || verbose) {
printf("%s\n", (failedAlready) ? "FAILED" : "PASSED");
}
return ((failedAlready) ? 1 : 0);
} /* main() */
/* append.c */