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-rw-r--r--nsprpub/pr/tests/append.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/append.c b/nsprpub/pr/tests/append.c
new file mode 100644
index 0000000000..64fe3ff2c1
--- /dev/null
+++ b/nsprpub/pr/tests/append.c
@@ -0,0 +1,146 @@
+/* -*- 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 */