1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /*
7 ** File: append.c
8 ** Description: Testing File writes where PR_APPEND was used on open
9 **
10 ** append attempts to verify that a file opened with PR_APPEND
11 ** will always append to the end of file, regardless where the
12 ** current file pointer is positioned. To do this, PR_Seek() is
13 ** called before each write with the position set to beginning of
14 ** file. Subsequent writes should always append.
15 ** The file is read back, summing the integer data written to the
16 ** file. If the expected result is equal, the test passes.
17 **
18 ** See BugSplat: 4090
19 */
20 #include "plgetopt.h"
21 #include "nspr.h"
22
23 #include <stdio.h>
24 #include <stdlib.h>
25
26 PRIntn debug = 0;
27 PRIntn verbose = 0;
28 PRBool failedAlready = PR_FALSE;
29 const PRInt32 addedBytes = 1000;
30 const PRInt32 buf = 1; /* constant written to fd, addedBytes times */
31 PRInt32 inBuf; /* read it back into here */
32
main(int argc,char ** argv)33 int main(int argc, char **argv)
34 {
35 PRStatus rc;
36 PRInt32 rv;
37 PRFileDesc *fd;
38 PRIntn i;
39 PRInt32 sum = 0;
40
41 { /* Get command line options */
42 PLOptStatus os;
43 PLOptState *opt = PL_CreateOptState(argc, argv, "vd");
44
45 while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
46 {
47 if (PL_OPT_BAD == os) continue;
48 switch (opt->option)
49 {
50 case 'd': /* debug */
51 debug = 1;
52 break;
53 case 'v': /* verbose */
54 verbose = 1;
55 break;
56 default:
57 break;
58 }
59 }
60 PL_DestroyOptState(opt);
61 } /* end block "Get command line options" */
62 /* ---------------------------------------------------------------------- */
63 fd = PR_Open( "/tmp/nsprAppend", (PR_APPEND | PR_CREATE_FILE | PR_TRUNCATE | PR_WRONLY), 0666 );
64 if ( NULL == fd ) {
65 if (debug) printf("PR_Open() failed for writing: %d\n", PR_GetError());
66 failedAlready = PR_TRUE;
67 goto Finished;
68 }
69
70 for ( i = 0; i < addedBytes ; i++ ) {
71 rv = PR_Write( fd, &buf, sizeof(buf));
72 if ( sizeof(buf) != rv ) {
73 if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
74 failedAlready = PR_TRUE;
75 goto Finished;
76 }
77 rv = PR_Seek( fd, 0 , PR_SEEK_SET );
78 if ( -1 == rv ) {
79 if (debug) printf("PR_Seek() failed: %d\n", PR_GetError());
80 failedAlready = PR_TRUE;
81 goto Finished;
82 }
83 }
84 rc = PR_Close( fd );
85 if ( PR_FAILURE == rc ) {
86 if (debug) printf("PR_Close() failed after writing: %d\n", PR_GetError());
87 failedAlready = PR_TRUE;
88 goto Finished;
89 }
90 /* ---------------------------------------------------------------------- */
91 fd = PR_Open( "/tmp/nsprAppend", PR_RDONLY, 0 );
92 if ( NULL == fd ) {
93 if (debug) printf("PR_Open() failed for reading: %d\n", PR_GetError());
94 failedAlready = PR_TRUE;
95 goto Finished;
96 }
97
98 for ( i = 0; i < addedBytes ; i++ ) {
99 rv = PR_Read( fd, &inBuf, sizeof(inBuf));
100 if ( sizeof(inBuf) != rv) {
101 if (debug) printf("PR_Write() failed: %d\n", PR_GetError());
102 failedAlready = PR_TRUE;
103 goto Finished;
104 }
105 sum += inBuf;
106 }
107
108 rc = PR_Close( fd );
109 if ( PR_FAILURE == rc ) {
110 if (debug) printf("PR_Close() failed after reading: %d\n", PR_GetError());
111 failedAlready = PR_TRUE;
112 goto Finished;
113 }
114 if ( sum != addedBytes ) {
115 if (debug) printf("Uh Oh! addedBytes: %d. Sum: %d\n", addedBytes, sum);
116 failedAlready = PR_TRUE;
117 goto Finished;
118 }
119
120 /* ---------------------------------------------------------------------- */
121 Finished:
122 if (debug || verbose) printf("%s\n", (failedAlready)? "FAILED" : "PASSED" );
123 return( (failedAlready)? 1 : 0 );
124 } /* main() */
125
126 /* append.c */
127