add directory gnu

gnu/glibc/glibc-1.03/stdio/perror.c

@@ -0,0 +1,50 @@
+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <errno.h>
+
+#ifndef HAVE_GNU_LD
+#define _sys_errlist sys_errlist
+#define _sys_nerr sys_nerr
+#endif
+
+/* Defined in sys_errlist.c.  */
+extern CONST char *CONST _sys_errlist[];
+extern CONST int _sys_nerr;
+
+/* Print a line on stderr consisting of the text in S, a colon, a space,
+   a message describing the meaning of the contents of `errno' and a newline.
+   If S is NULL or "", the colon and space are omitted.  */
+void
+DEFUN(perror, (s), register CONST char *s)
+{
+  int errnum = errno;
+  CONST char *colon;
+
+  if (s == NULL || *s == '\0')
+    s = colon = "";
+  else
+    colon = ": ";
+
+  if (errnum >= 0 && errnum < _sys_nerr)
+    (void) fprintf(stderr, "%s%s%s\n", s, colon, _sys_errlist[errnum]);
+  else
+    (void) fprintf(stderr, "%s%sUnknown error %d\n", s, colon, errnum);
+}