1 files changed, 112 insertions, 0 deletions
diff --git a/texinfo/info/clib.c b/texinfo/info/clib.c
new file mode 100644
index 00000000000..0f913370bf3
--- /dev/null
+++ b/texinfo/info/clib.c
@@ -0,0 +1,112 @@
+/* clib.c: Functions which we normally expect to find in the C library.
+   $Id: clib.c,v 1.1 1997/08/21 22:57:59 jason Exp $
+
+   This file is part of GNU Info, a program for reading online documentation
+   stored in Info format.
+
+   Copyright (C) 1995 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 2, 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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Written by Brian Fox (bfox@ai.mit.edu). */
+
+#include <stdio.h>
+
+#if defined (HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+#include <stdlib.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#include <string.h>
+#endif
+
+#include <sys/errno.h>
+
+extern void *xmalloc (), *xrealloc ();
+#include "general.h"
+
+#if !defined (errno)
+extern int errno;
+#endif
+
+#if !defined (HAVE_STRERROR)
+extern char *sys_errlist[];
+extern int sys_nerr;
+
+char *
+strerror (num)
+     int num;
+{
+  if (num >= sys_nerr)
+    return ("");
+  else
+    return (sys_errlist[num]);
+}
+#endif /* !HAVE_STRERROR */
+
+#if !defined (HAVE_STRCASECMP)
+/* This Unix doesn't have the strcasecmp () function. */
+int
+strcasecmp (string1, string2)
+     char *string1, *string2;
+{
+  char ch1, ch2;
+
+  for (;;)
+    {
+      ch1 = *string1++;
+      ch2 = *string2++;
+
+      if (!(ch1 | ch2))
+	return (0);
+
+      ch1 = info_toupper (ch1);
+      ch2 = info_toupper (ch2);
+
+      if (ch1 != ch2)
+	return (ch1 - ch2);
+    }
+}
+
+/* Compare at most COUNT characters from string1 to string2.  Case
+   doesn't matter. */
+int
+strncasecmp (string1, string2, count)
+     char *string1, *string2;
+     int count;
+{
+  register char ch1, ch2;
+
+  while (count)
+    {
+      ch1 = *string1++;
+      ch2 = *string2++;
+
+      ch1 = info_toupper (ch1);
+      ch2 = info_toupper (ch2);
+
+      if (ch1 == ch2)
+	count--;
+      else
+	break;
+    }
+  return (count);
+}
+#endif /* !STRCASECMP */
+