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-rw-r--r--lib/sh/strerror.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/sh/strerror.c b/lib/sh/strerror.c
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index 0000000..bf63926
--- /dev/null
+++ b/lib/sh/strerror.c
@@ -0,0 +1,74 @@
+/* strerror.c - string corresponding to a particular value of errno. */
+
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash 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 of the License, or
+ (at your option) any later version.
+
+ Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#if !defined (HAVE_STRERROR)
+
+#include <bashtypes.h>
+#if defined (HAVE_SYS_PARAM_H)
+# include <sys/param.h>
+#endif
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+
+#include <shell.h>
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+/* Return a string corresponding to the error number E. From
+ the ANSI C spec. */
+#if defined (strerror)
+# undef strerror
+#endif
+
+static char *errbase = "Unknown system error ";
+
+char *
+strerror (e)
+ int e;
+{
+ static char emsg[40];
+#if defined (HAVE_SYS_ERRLIST)
+ extern int sys_nerr;
+ extern char *sys_errlist[];
+
+ if (e > 0 && e < sys_nerr)
+ return (sys_errlist[e]);
+ else
+#endif /* HAVE_SYS_ERRLIST */
+ {
+ char *z;
+
+ z = itos (e);
+ strcpy (emsg, errbase);
+ strcat (emsg, z);
+ free (z);
+ return (&emsg[0]);
+ }
+}
+#endif /* HAVE_STRERROR */