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-rw-r--r--sysdeps/generic/_strerror.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/sysdeps/generic/_strerror.c b/sysdeps/generic/_strerror.c
new file mode 100644
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+++ b/sysdeps/generic/_strerror.c
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+/* Copyright (C) 1991,93,95,96,97,98,2000,2002 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 <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
+
+/* Return a string describing the errno code in ERRNUM. */
+char *
+__strerror_r (int errnum, char *buf, size_t buflen)
+{
+ if (errnum < 0 || errnum >= _sys_nerr_internal
+ || _sys_errlist_internal[errnum] == NULL)
+ {
+ /* Buffer we use to print the number in. For a maximum size for
+ `int' of 8 bytes we never need more than 20 digits. */
+ char numbuf[21];
+ const char *unk = _("Unknown error ");
+ const size_t unklen = strlen (unk);
+ char *p, *q;
+
+ numbuf[20] = '\0';
+ p = _itoa_word (errnum, &numbuf[20], 10, 0);
+
+ /* Now construct the result while taking care for the destination
+ buffer size. */
+ q = __mempcpy (buf, unk, MIN (unklen, buflen));
+ if (unklen < buflen)
+ memcpy (q, p, MIN ((size_t) (&numbuf[21] - p), buflen - unklen));
+
+ /* Terminate the string in any case. */
+ if (buflen > 0)
+ buf[buflen - 1] = '\0';
+
+ return buf;
+ }
+
+ return (char *) _(_sys_errlist_internal[errnum]);
+}
+weak_alias (__strerror_r, strerror_r)
+libc_hidden_def (__strerror_r)