74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/* 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 */
|