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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /string/xpg-strerror.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'string/xpg-strerror.c')
-rw-r--r--string/xpg-strerror.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/string/xpg-strerror.c b/string/xpg-strerror.c
new file mode 100644
index 0000000000..5cb56cdfb8
--- /dev/null
+++ b/string/xpg-strerror.c
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+/* Copyright (C) 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2002, 2004
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <libintl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/param.h>
+#include <stdio-common/_itoa.h>
+
+/* It is critical here that we always use the `dcgettext' function for
+ the message translation. Since <libintl.h> only defines the macro
+ `dgettext' to use `dcgettext' for optimizing programs this is not
+ always guaranteed. */
+#ifndef dgettext
+# include <locale.h> /* We need LC_MESSAGES. */
+# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
+#endif
+
+/* Fill buf with a string describing the errno code in ERRNUM. */
+int
+__xpg_strerror_r (int errnum, char *buf, size_t buflen)
+{
+ if (errnum < 0 || errnum >= _sys_nerr_internal
+ || _sys_errlist_internal[errnum] == NULL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+ const char *estr = (const char *) _(_sys_errlist_internal[errnum]);
+ size_t estrlen = strlen (estr) + 1;
+
+ if (buflen < estrlen)
+ {
+ __set_errno (ERANGE);
+ return -1;
+ }
+
+ memcpy (buf, estr, estrlen);
+ return 0;
+}