aboutsummaryrefslogtreecommitdiff
path: root/stdio-common/tst-fmemopen2.c
diff options
context:
space:
mode:
Diffstat (limited to 'stdio-common/tst-fmemopen2.c')
-rw-r--r--stdio-common/tst-fmemopen2.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/stdio-common/tst-fmemopen2.c b/stdio-common/tst-fmemopen2.c
deleted file mode 100644
index 891b7ca111..0000000000
--- a/stdio-common/tst-fmemopen2.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/* fmemopen tests.
- Copyright (C) 2015-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <stdint.h>
-#include <errno.h>
-
-/* Check fmemopen with user provided buffer open for write. */
-static int
-do_test_with_buffer (void)
-{
- int result = 0;
- char buf[100];
- const size_t nbuf = sizeof (buf);
-
- FILE *fp = fmemopen (buf, nbuf, "w");
- if (fp == NULL)
- {
- printf ("FAIL: fmemopen failed (%s)\n", __FUNCTION__);
- return 1;
- }
-
- /* Default write operation, check if file position is correct after it. */
- static const char str[] = "hello world";
- const size_t nstr = sizeof (str) - 1;
- fputs (str, fp);
- off_t o = ftello (fp);
- if (o != nstr)
- {
- printf ("FAIL: first ftello returned %jd, expected %zu\n",
- (intmax_t)o, nstr);
- result = 1;
- }
-
- /* Rewind stream and seek tests, the position size should be equal to
- buffer size provided in open function. */
- rewind (fp);
- o = ftello (fp);
- if (o != 0)
- {
- printf ("FAIL: second ftello returned %jd, expected 0\n",
- (intmax_t)o);
- result = 1;
- }
- if (fseeko (fp, 0, SEEK_END) != 0)
- {
- printf ("FAIL: fseeko failed\n");
- result = 1;
- }
- o = ftello (fp);
- if (o != nstr)
- {
- printf ("FAIL: third ftello returned %jd, expected %zu\n",
- (intmax_t)o, nstr);
- result = 1;
- }
-
- /* Rewind the stream and recheck by using a shorter string. */
- rewind (fp);
- static const char str2[] = "just hello";
- const size_t nstr2 = sizeof (str2) - 1;
- assert (nstr2 < nstr);
- fputs (str2, fp);
- o = ftello (fp);
- if (o != nstr2)
- {
- printf ("FAIL: fourth ftello returned %jd, expected %zu\n",
- (intmax_t)o, nstr2);
- result = 1;
- }
- fclose (fp);
-
- /* Again, but now with a larger string. */
- static const char str3[] = "just hellod";
- if (strcmp (buf, str3) != 0)
- {
- printf ("FAIL: final string is \"%s\", expected \"%s\"\n",
- buf, str3);
- result = 1;
- }
- return result;
-}
-
-/* Check fmemopen without user provided buffer open for write. */
-static int
-do_test_without_buffer (void)
-{
- int result = 0;
- const size_t nbuf = 100;
-
- FILE *fp = fmemopen (NULL, nbuf, "w");
- if (fp == NULL)
- {
- printf ("FAIL: fmemopen failed (%s)\n", __FUNCTION__);
- return 1;
- }
-
- static const char str[] = "hello world";
- const size_t nstr = sizeof (str) - 1;
-
- /* Default write operation, check if file position is correct after it. */
- fputs (str, fp);
- off_t o = ftello (fp);
- if (o != nstr)
- {
- printf ("FAIL: first ftello returned %jd, expected %zu\n",
- (intmax_t) o, nstr);
- result = 1;
- }
- if (fseeko (fp, 0, SEEK_END) != 0)
- {
- printf ("FAIL: fseeko failed\n");
- result = 1;
- }
- o = ftello (fp);
- if (o != nstr)
- {
- printf ("FAIL: second ftello returned %jd, expected %zu\n",
- (intmax_t) o, nbuf);
- result = 1;
- }
-
- /* Rewind the stream and recheck by using a shorter string. */
- rewind (fp);
- static const char str2[] = "just hello";
- const size_t nstr2 = sizeof (str2) - 1;
- assert (nstr2 < nstr);
- fputs (str2, fp);
- o = ftello (fp);
- if (o != nstr2)
- {
- printf ("FAIL: third ftello returned %jd, expected %zu\n",
- (intmax_t) o, nstr2);
- result = 1;
- }
- fclose (fp);
-
- return result;
-}
-
-/* Check fmemopen with a buffer lenght of zero. */
-static int
-do_test_length_zero (void)
-{
- int result = 0;
- FILE *fp;
-#define BUFCONTENTS "testing buffer"
- char buf[100] = BUFCONTENTS;
- const size_t nbuf = 0;
- int r;
-
- fp = fmemopen (buf, nbuf, "r");
- if (fp == NULL)
- {
- printf ("FAIL: fmemopen failed (%s)\n", __FUNCTION__);
- return 1;
- }
-
- /* Reading any data on a zero-length buffer should return EOF. */
- if ((r = fgetc (fp)) != EOF)
- {
- printf ("FAIL: fgetc on a zero-length returned: %d\n", r);
- result = 1;
- }
- off_t o = ftello (fp);
- if (o != 0)
- {
- printf ("FAIL: first ftello returned %jd, expected 0\n",
- (intmax_t) o);
- result = 1;
- }
- fclose (fp);
-
- /* Writing any data shall start at current position and shall not pass
- current buffer size beyond the size in fmemopen call. */
- fp = fmemopen (buf, nbuf, "w");
- if (fp == NULL)
- {
- printf ("FAIL: second fmemopen failed (%s)\n", __FUNCTION__);
- return 1;
- }
-
- static const char str[] = "hello world";
- /* Because of buffering, the fputs call itself will not fail. However the
- final buffer should be not changed because length 0 was passed to the
- fmemopen call. */
- fputs (str, fp);
- r = 0;
- errno = 0;
- if (fflush (fp) != EOF)
- {
- printf ("FAIL: fflush did not return EOF\n");
- fclose (fp);
- return 1;
- }
- if (errno != ENOSPC)
- {
- printf ("FAIL: errno is %i (expected ENOSPC)\n", errno);
- fclose (fp);
- return 1;
- }
-
- fclose (fp);
-
- if (strcmp (buf, BUFCONTENTS) != 0)
- {
- printf ("FAIL: strcmp (%s, %s) failed\n", buf, BUFCONTENTS);
- return 1;
- }
-
- /* Different than 'w' mode, 'w+' truncates the buffer. */
- fp = fmemopen (buf, nbuf, "w+");
- if (fp == NULL)
- {
- printf ("FAIL: third fmemopen failed (%s)\n", __FUNCTION__);
- return 1;
- }
-
- fclose (fp);
-
- if (strcmp (buf, "") != 0)
- {
- printf ("FAIL: strcmp (%s, \"\") failed\n", buf);
- return 1;
- }
-
- return result;
-}
-
-static int
-do_test (void)
-{
- int ret = 0;
-
- ret += do_test_with_buffer ();
- ret += do_test_without_buffer ();
- ret += do_test_length_zero ();
-
- return ret;
-}
-
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
generated by cgit v1.2.3-70-g09d2 (git 2.50.0) at 2025-07-18 20:55:00 +0000