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127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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** File: append.c
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** Description: Testing File writes where PR_APPEND was used on open
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**
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** append attempts to verify that a file opened with PR_APPEND
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** will always append to the end of file, regardless where the
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** current file pointer is positioned. To do this, PR_Seek() is
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** called before each write with the position set to beginning of
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** file. Subsequent writes should always append.
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** The file is read back, summing the integer data written to the
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** file. If the expected result is equal, the test passes.
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**
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** See BugSplat: 4090
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*/
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#include "plgetopt.h"
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#include "nspr.h"
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#include <stdio.h>
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#include <stdlib.h>
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PRIntn debug = 0;
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PRIntn verbose = 0;
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PRBool failedAlready = PR_FALSE;
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const PRInt32 addedBytes = 1000;
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const PRInt32 buf = 1; /* constant written to fd, addedBytes times */
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PRInt32 inBuf; /* read it back into here */
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int main(int argc, char **argv)
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{
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PRStatus rc;
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PRInt32 rv;
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PRFileDesc *fd;
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PRIntn i;
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PRInt32 sum = 0;
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{ /* Get command line options */
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PLOptStatus os;
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PLOptState *opt = PL_CreateOptState(argc, argv, "vd");
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) continue;
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switch (opt->option)
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{
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case 'd': /* debug */
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debug = 1;
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break;
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case 'v': /* verbose */
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verbose = 1;
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break;
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default:
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break;
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}
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}
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PL_DestroyOptState(opt);
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} /* end block "Get command line options" */
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/* ---------------------------------------------------------------------- */
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fd = PR_Open( "/tmp/nsprAppend", (PR_APPEND | PR_CREATE_FILE | PR_TRUNCATE | PR_WRONLY), 0666 );
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if ( NULL == fd ) {
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if (debug) printf("PR_Open() failed for writing: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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for ( i = 0; i < addedBytes ; i++ ) {
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rv = PR_Write( fd, &buf, sizeof(buf));
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if ( sizeof(buf) != rv ) {
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if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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rv = PR_Seek( fd, 0 , PR_SEEK_SET );
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if ( -1 == rv ) {
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if (debug) printf("PR_Seek() failed: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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}
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rc = PR_Close( fd );
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if ( PR_FAILURE == rc ) {
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if (debug) printf("PR_Close() failed after writing: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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/* ---------------------------------------------------------------------- */
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fd = PR_Open( "/tmp/nsprAppend", PR_RDONLY, 0 );
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if ( NULL == fd ) {
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if (debug) printf("PR_Open() failed for reading: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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for ( i = 0; i < addedBytes ; i++ ) {
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rv = PR_Read( fd, &inBuf, sizeof(inBuf));
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if ( sizeof(inBuf) != rv) {
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if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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sum += inBuf;
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}
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rc = PR_Close( fd );
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if ( PR_FAILURE == rc ) {
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if (debug) printf("PR_Close() failed after reading: %d\n", PR_GetError());
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failedAlready = PR_TRUE;
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goto Finished;
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}
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if ( sum != addedBytes ) {
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if (debug) printf("Uh Oh! addedBytes: %d. Sum: %d\n", addedBytes, sum);
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failedAlready = PR_TRUE;
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goto Finished;
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}
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/* ---------------------------------------------------------------------- */
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Finished:
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if (debug || verbose) printf("%s\n", (failedAlready)? "FAILED" : "PASSED" );
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return( (failedAlready)? 1 : 0 );
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} /* main() */
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/* append.c */
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