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/* Tests of fseek and fseeko.
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Copyright (C) 2000-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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6c4009 |
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You should have received a copy of the GNU Lesser General Public
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6c4009 |
License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <error.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <time.h>
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#include <sys/stat.h>
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static int
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do_test (void)
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{
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const char *tmpdir;
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char *fname;
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int fd;
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FILE *fp;
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const char outstr[] = "hello world!\n";
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char strbuf[sizeof outstr];
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char buf[200];
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struct stat64 st1;
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struct stat64 st2;
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int result = 0;
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tmpdir = getenv ("TMPDIR");
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if (tmpdir == NULL || tmpdir[0] == '\0')
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tmpdir = "/tmp";
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asprintf (&fname, "%s/tst-fseek.XXXXXX", tmpdir);
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if (fname == NULL)
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error (EXIT_FAILURE, errno, "cannot generate name for temporary file");
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/* Create a temporary file. */
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fd = mkstemp (fname);
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if (fd == -1)
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error (EXIT_FAILURE, errno, "cannot open temporary file");
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fp = fdopen (fd, "w+");
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if (fp == NULL)
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error (EXIT_FAILURE, errno, "cannot get FILE for temporary file");
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setbuffer (fp, strbuf, sizeof (outstr) -1);
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if (fwrite (outstr, sizeof (outstr) - 1, 1, fp) != 1)
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{
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printf ("%d: write error\n", __LINE__);
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result = 1;
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goto out;
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}
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/* The EOF flag must be reset. */
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if (fgetc (fp) != EOF)
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{
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printf ("%d: managed to read at end of file\n", __LINE__);
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result = 1;
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}
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else if (! feof (fp))
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{
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printf ("%d: EOF flag not set\n", __LINE__);
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result = 1;
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}
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if (fseek (fp, 0, SEEK_CUR) != 0)
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{
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printf ("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
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result = 1;
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}
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else if (feof (fp))
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{
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printf ("%d: fseek() didn't reset EOF flag\n", __LINE__);
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result = 1;
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}
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/* Do the same for fseeko(). */
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if (fgetc (fp) != EOF)
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{
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printf ("%d: managed to read at end of file\n", __LINE__);
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result = 1;
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}
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else if (! feof (fp))
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{
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printf ("%d: EOF flag not set\n", __LINE__);
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result = 1;
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}
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if (fseeko (fp, 0, SEEK_CUR) != 0)
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{
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printf ("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
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result = 1;
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}
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else if (feof (fp))
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{
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printf ("%d: fseek() didn't reset EOF flag\n", __LINE__);
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result = 1;
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}
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/* Go back to the beginning of the file: absolute. */
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if (fseek (fp, 0, SEEK_SET) != 0)
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{
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printf ("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush (fp) != 0)
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{
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printf ("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek (fd, 0, SEEK_CUR) != 0)
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{
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printf ("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
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{
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printf ("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
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{
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printf ("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Now with fseeko. */
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if (fseeko (fp, 0, SEEK_SET) != 0)
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{
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printf ("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush (fp) != 0)
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{
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printf ("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek (fd, 0, SEEK_CUR) != 0)
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{
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printf ("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
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{
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printf ("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
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{
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printf ("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Go back to the beginning of the file: relative. */
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if (fseek (fp, -((int) sizeof (outstr) - 1), SEEK_CUR) != 0)
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{
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printf ("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush (fp) != 0)
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{
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printf ("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek (fd, 0, SEEK_CUR) != 0)
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{
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printf ("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
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{
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printf ("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
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{
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printf ("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Now with fseeko. */
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if (fseeko (fp, -((int) sizeof (outstr) - 1), SEEK_CUR) != 0)
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{
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printf ("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush (fp) != 0)
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{
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6c4009 |
printf ("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek (fd, 0, SEEK_CUR) != 0)
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6c4009 |
{
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printf ("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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6c4009 |
}
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else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
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6c4009 |
{
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printf ("%d: fread() failed\n", __LINE__);
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result = 1;
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6c4009 |
}
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else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
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6c4009 |
{
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6c4009 |
printf ("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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6c4009 |
result = 1;
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6c4009 |
}
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6c4009 |
|
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6c4009 |
/* Go back to the beginning of the file: from the end. */
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if (fseek (fp, -((int) sizeof (outstr) - 1), SEEK_END) != 0)
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{
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printf ("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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6c4009 |
}
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else if (fflush (fp) != 0)
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{
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printf ("%d: fflush() failed\n", __LINE__);
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result = 1;
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6c4009 |
}
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else if (lseek (fd, 0, SEEK_CUR) != 0)
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{
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printf ("%d: lseek() returned different position\n", __LINE__);
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6c4009 |
result = 1;
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6c4009 |
}
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6c4009 |
else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
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6c4009 |
{
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6c4009 |
printf ("%d: fread() failed\n", __LINE__);
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6c4009 |
result = 1;
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6c4009 |
}
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6c4009 |
else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
|
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6c4009 |
{
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6c4009 |
printf ("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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6c4009 |
result = 1;
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6c4009 |
}
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6c4009 |
|
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Packit |
6c4009 |
/* Now with fseeko. */
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6c4009 |
if (fseeko (fp, -((int) sizeof (outstr) - 1), SEEK_END) != 0)
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6c4009 |
{
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6c4009 |
printf ("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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6c4009 |
result = 1;
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Packit |
6c4009 |
}
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Packit |
6c4009 |
else if (fflush (fp) != 0)
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Packit |
6c4009 |
{
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Packit |
6c4009 |
printf ("%d: fflush() failed\n", __LINE__);
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|
Packit |
6c4009 |
result = 1;
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Packit |
6c4009 |
}
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6c4009 |
else if (lseek (fd, 0, SEEK_CUR) != 0)
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Packit |
6c4009 |
{
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Packit |
6c4009 |
printf ("%d: lseek() returned different position\n", __LINE__);
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Packit |
6c4009 |
result = 1;
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|
Packit |
6c4009 |
}
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|
Packit |
6c4009 |
else if (fread (buf, sizeof (outstr) - 1, 1, fp) != 1)
|
|
Packit |
6c4009 |
{
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|
Packit |
6c4009 |
printf ("%d: fread() failed\n", __LINE__);
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|
Packit |
6c4009 |
result = 1;
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|
Packit |
6c4009 |
}
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|
Packit |
6c4009 |
else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0)
|
|
Packit |
6c4009 |
{
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|
Packit |
6c4009 |
printf ("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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|
Packit |
6c4009 |
result = 1;
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|
Packit |
6c4009 |
}
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Packit |
6c4009 |
|
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Packit |
6c4009 |
if (fwrite (outstr, sizeof (outstr) - 1, 1, fp) != 1)
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|
Packit |
6c4009 |
{
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Packit |
6c4009 |
printf ("%d: write error 2\n", __LINE__);
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Packit |
6c4009 |
result = 1;
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Packit |
6c4009 |
goto out;
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Packit |
6c4009 |
}
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Packit |
6c4009 |
|
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Packit |
6c4009 |
if (fwrite (outstr, sizeof (outstr) - 1, 1, fp) != 1)
|
|
Packit |
6c4009 |
{
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|
Packit |
6c4009 |
printf ("%d: write error 3\n", __LINE__);
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|
Packit |
6c4009 |
result = 1;
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Packit |
6c4009 |
goto out;
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Packit |
6c4009 |
}
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|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fwrite (outstr, sizeof (outstr) - 1, 1, fp) != 1)
|
|
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6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: write error 4\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
goto out;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fwrite (outstr, sizeof (outstr) - 1, 1, fp) != 1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: write error 5\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
goto out;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fputc ('1', fp) == EOF || fputc ('2', fp) == EOF)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: cannot add characters at the end\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
goto out;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Check the access time. */
|
|
Packit |
6c4009 |
if (fstat64 (fd, &st1) < 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64() before fseeko() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
sleep (1);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fseek (fp, -(2 + 2 * (sizeof (outstr) - 1)), SEEK_CUR) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fseek() after write characters failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
goto out;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
time_t t;
|
|
Packit |
6c4009 |
/* Make sure the timestamp actually can be different. */
|
|
Packit |
6c4009 |
sleep (1);
|
|
Packit |
6c4009 |
t = time (NULL);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fstat64 (fd, &st2) < 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64() after fseeko() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (st1.st_ctime >= t)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: st_ctime not updated\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (st1.st_mtime >= t)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: st_mtime not updated\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (st1.st_ctime >= st2.st_ctime)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: st_ctime not changed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (st1.st_mtime >= st2.st_mtime)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: st_mtime not changed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fread (buf, 1, 2 + 2 * (sizeof (outstr) - 1), fp)
|
|
Packit |
6c4009 |
!= 2 + 2 * (sizeof (outstr) - 1))
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: reading 2 records plus bits failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0
|
|
Packit |
6c4009 |
|| memcmp (&buf[sizeof (outstr) - 1], outstr,
|
|
Packit |
6c4009 |
sizeof (outstr) - 1) != 0
|
|
Packit |
6c4009 |
|| buf[2 * (sizeof (outstr) - 1)] != '1'
|
|
Packit |
6c4009 |
|| buf[2 * (sizeof (outstr) - 1) + 1] != '2')
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: reading records failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (ungetc ('9', fp) == EOF)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: ungetc() failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fseek (fp, -(2 + 2 * (sizeof (outstr) - 1)), SEEK_END) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fseek after ungetc failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fread (buf, 1, 2 + 2 * (sizeof (outstr) - 1), fp)
|
|
Packit |
6c4009 |
!= 2 + 2 * (sizeof (outstr) - 1))
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: reading 2 records plus bits failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (memcmp (buf, outstr, sizeof (outstr) - 1) != 0
|
|
Packit |
6c4009 |
|| memcmp (&buf[sizeof (outstr) - 1], outstr,
|
|
Packit |
6c4009 |
sizeof (outstr) - 1) != 0
|
|
Packit |
6c4009 |
|| buf[2 * (sizeof (outstr) - 1)] != '1')
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: reading records for the second time failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (buf[2 * (sizeof (outstr) - 1) + 1] == '9')
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: unget character not ignored\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (buf[2 * (sizeof (outstr) - 1) + 1] != '2')
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: unget somehow changed character\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
fclose (fp);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
fp = fopen (fname, "r");
|
|
Packit |
6c4009 |
if (fp == NULL)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fopen() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fstat64 (fileno (fp), &st1) < 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64() before fseeko() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fseeko (fp, 0, SEEK_END) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (ftello (fp) != st1.st_size)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
|
|
Packit |
6c4009 |
(size_t) st1.st_size, (size_t) ftello (fp));
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
printf ("%d: SEEK_END works\n", __LINE__);
|
|
Packit |
6c4009 |
if (fp != NULL)
|
|
Packit |
6c4009 |
fclose (fp);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
fp = fopen (fname, "r");
|
|
Packit |
6c4009 |
if (fp == NULL)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fopen() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fstat64 (fileno (fp), &st1) < 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64() before fgetc() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fgetc (fp) == EOF)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fgetc() before fseeko() failed\n\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fseeko (fp, 0, SEEK_END) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (ftello (fp) != st1.st_size)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
|
|
Packit |
6c4009 |
(size_t) st1.st_size, (size_t) ftello (fp));
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
printf ("%d: SEEK_END works\n", __LINE__);
|
|
Packit |
6c4009 |
if (fp != NULL)
|
|
Packit |
6c4009 |
fclose (fp);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
out:
|
|
Packit |
6c4009 |
unlink (fname);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return result;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#define TIMEOUT 3
|
|
Packit |
6c4009 |
#define TEST_FUNCTION do_test ()
|
|
Packit |
6c4009 |
#include "../test-skeleton.c"
|