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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, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
** 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 */
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