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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
commit29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc (patch)
tree63ef546b10a81d461e5cf5ed9e98a68cd7dee1aa /src/grep/gnulib-tests/test-strerror.c
parentInitial commit. (diff)
downloadkbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.tar.xz
kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.zip
Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/grep/gnulib-tests/test-strerror.c')
-rw-r--r--src/grep/gnulib-tests/test-strerror.c75
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diff --git a/src/grep/gnulib-tests/test-strerror.c b/src/grep/gnulib-tests/test-strerror.c
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+/* Test of strerror() function.
+ Copyright (C) 2007-2021 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007. */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (strerror, char *, (int));
+
+#include <errno.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+ char *str;
+
+ errno = 0;
+ str = strerror (EACCES);
+ ASSERT (str);
+ ASSERT (*str);
+ ASSERT (errno == 0);
+
+ errno = 0;
+ str = strerror (ETIMEDOUT);
+ ASSERT (str);
+ ASSERT (*str);
+ ASSERT (errno == 0);
+
+ errno = 0;
+ str = strerror (EOVERFLOW);
+ ASSERT (str);
+ ASSERT (*str);
+ ASSERT (errno == 0);
+
+ /* POSIX requires strerror (0) to succeed. Reject use of "Unknown
+ error", but allow "Success", "No error", or even Solaris' "Error
+ 0" which are distinct patterns from true out-of-range strings.
+ http://austingroupbugs.net/view.php?id=382 */
+ errno = 0;
+ str = strerror (0);
+ ASSERT (str);
+ ASSERT (*str);
+ ASSERT (errno == 0);
+ ASSERT (strstr (str, "nknown") == NULL);
+ ASSERT (strstr (str, "ndefined") == NULL);
+
+ /* POSIX requires strerror to produce a non-NULL result for all
+ inputs; as an extension, we also guarantee a non-empty result.
+ Reporting EINVAL is optional. */
+ errno = 0;
+ str = strerror (-3);
+ ASSERT (str);
+ ASSERT (*str);
+ ASSERT (errno == 0 || errno == EINVAL);
+
+ return 0;
+}