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nsprpub/pr/tests/append.c@6474c204b198 (annotated)

nsprpub/pr/tests/append.c

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/*
michael@0	7	** File: append.c
michael@0	8	** Description: Testing File writes where PR_APPEND was used on open
michael@0	9	**
michael@0	10	** append attempts to verify that a file opened with PR_APPEND
michael@0	11	** will always append to the end of file, regardless where the
michael@0	12	** current file pointer is positioned. To do this, PR_Seek() is
michael@0	13	** called before each write with the position set to beginning of
michael@0	14	** file. Subsequent writes should always append.
michael@0	15	** The file is read back, summing the integer data written to the
michael@0	16	** file. If the expected result is equal, the test passes.
michael@0	17	**
michael@0	18	** See BugSplat: 4090
michael@0	19	*/
michael@0	20	#include "plgetopt.h"
michael@0	21	#include "nspr.h"
michael@0	22
michael@0	23	#include <stdio.h>
michael@0	24	#include <stdlib.h>
michael@0	25
michael@0	26	PRIntn debug = 0;
michael@0	27	PRIntn verbose = 0;
michael@0	28	PRBool failedAlready = PR_FALSE;
michael@0	29	const PRInt32 addedBytes = 1000;
michael@0	30	const PRInt32 buf = 1; /* constant written to fd, addedBytes times */
michael@0	31	PRInt32 inBuf; /* read it back into here */
michael@0	32
michael@0	33	int main(int argc, char **argv)
michael@0	34	{
michael@0	35	PRStatus rc;
michael@0	36	PRInt32 rv;
michael@0	37	PRFileDesc *fd;
michael@0	38	PRIntn i;
michael@0	39	PRInt32 sum = 0;
michael@0	40
michael@0	41	{ /* Get command line options */
michael@0	42	PLOptStatus os;
michael@0	43	PLOptState *opt = PL_CreateOptState(argc, argv, "vd");
michael@0	44
michael@0	45	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
michael@0	46	{
michael@0	47	if (PL_OPT_BAD == os) continue;
michael@0	48	switch (opt->option)
michael@0	49	{
michael@0	50	case 'd': /* debug */
michael@0	51	debug = 1;
michael@0	52	break;
michael@0	53	case 'v': /* verbose */
michael@0	54	verbose = 1;
michael@0	55	break;
michael@0	56	default:
michael@0	57	break;
michael@0	58	}
michael@0	59	}
michael@0	60	PL_DestroyOptState(opt);
michael@0	61	} /* end block "Get command line options" */
michael@0	62	/* ---------------------------------------------------------------------- */
michael@0	63	fd = PR_Open( "/tmp/nsprAppend", (PR_APPEND | PR_CREATE_FILE | PR_TRUNCATE | PR_WRONLY), 0666 );
michael@0	64	if ( NULL == fd ) {
michael@0	65	if (debug) printf("PR_Open() failed for writing: %d\n", PR_GetError());
michael@0	66	failedAlready = PR_TRUE;
michael@0	67	goto Finished;
michael@0	68	}
michael@0	69
michael@0	70	for ( i = 0; i < addedBytes ; i++ ) {
michael@0	71	rv = PR_Write( fd, &buf, sizeof(buf));
michael@0	72	if ( sizeof(buf) != rv ) {
michael@0	73	if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
michael@0	74	failedAlready = PR_TRUE;
michael@0	75	goto Finished;
michael@0	76	}
michael@0	77	rv = PR_Seek( fd, 0 , PR_SEEK_SET );
michael@0	78	if ( -1 == rv ) {
michael@0	79	if (debug) printf("PR_Seek() failed: %d\n", PR_GetError());
michael@0	80	failedAlready = PR_TRUE;
michael@0	81	goto Finished;
michael@0	82	}
michael@0	83	}
michael@0	84	rc = PR_Close( fd );
michael@0	85	if ( PR_FAILURE == rc ) {
michael@0	86	if (debug) printf("PR_Close() failed after writing: %d\n", PR_GetError());
michael@0	87	failedAlready = PR_TRUE;
michael@0	88	goto Finished;
michael@0	89	}
michael@0	90	/* ---------------------------------------------------------------------- */
michael@0	91	fd = PR_Open( "/tmp/nsprAppend", PR_RDONLY, 0 );
michael@0	92	if ( NULL == fd ) {
michael@0	93	if (debug) printf("PR_Open() failed for reading: %d\n", PR_GetError());
michael@0	94	failedAlready = PR_TRUE;
michael@0	95	goto Finished;
michael@0	96	}
michael@0	97
michael@0	98	for ( i = 0; i < addedBytes ; i++ ) {
michael@0	99	rv = PR_Read( fd, &inBuf, sizeof(inBuf));
michael@0	100	if ( sizeof(inBuf) != rv) {
michael@0	101	if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
michael@0	102	failedAlready = PR_TRUE;
michael@0	103	goto Finished;
michael@0	104	}
michael@0	105	sum += inBuf;
michael@0	106	}
michael@0	107
michael@0	108	rc = PR_Close( fd );
michael@0	109	if ( PR_FAILURE == rc ) {
michael@0	110	if (debug) printf("PR_Close() failed after reading: %d\n", PR_GetError());
michael@0	111	failedAlready = PR_TRUE;
michael@0	112	goto Finished;
michael@0	113	}
michael@0	114	if ( sum != addedBytes ) {
michael@0	115	if (debug) printf("Uh Oh! addedBytes: %d. Sum: %d\n", addedBytes, sum);
michael@0	116	failedAlready = PR_TRUE;
michael@0	117	goto Finished;
michael@0	118	}
michael@0	119
michael@0	120	/* ---------------------------------------------------------------------- */
michael@0	121	Finished:
michael@0	122	if (debug || verbose) printf("%s\n", (failedAlready)? "FAILED" : "PASSED" );
michael@0	123	return( (failedAlready)? 1 : 0 );
michael@0	124	} /* main() */
michael@0	125
michael@0	126	/* append.c */