minix/commands/ash/errmsg.c

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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)errmsg.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
#include "shell.h"
#include "output.h"
#include "errmsg.h"
#include <errno.h>
#define ALL (E_OPEN|E_CREAT|E_EXEC)
struct errname {
short errcode; /* error number */
short action; /* operation which encountered the error */
char *msg; /* text describing the error */
};
STATIC const struct errname errormsg[] = {
EINTR, ALL, "interrupted",
EACCES, ALL, "permission denied",
EIO, ALL, "I/O error",
ENOENT, E_OPEN, "no such file",
ENOENT, E_CREAT, "directory nonexistent",
ENOENT, E_EXEC, "not found",
ENOTDIR, E_OPEN, "no such file",
ENOTDIR, E_CREAT, "directory nonexistent",
ENOTDIR, E_EXEC, "not found",
EISDIR, ALL, "is a directory",
/* EMFILE, ALL, "too many open files", */
ENFILE, ALL, "file table overflow",
ENOSPC, ALL, "file system full",
#ifdef EDQUOT
EDQUOT, ALL, "disk quota exceeded",
#endif
#ifdef ENOSR
ENOSR, ALL, "no streams resources",
#endif
ENXIO, ALL, "no such device or address",
EROFS, ALL, "read-only file system",
ETXTBSY, ALL, "text busy",
#ifdef SYSV
EAGAIN, E_EXEC, "not enough memory",
#endif
ENOMEM, ALL, "not enough memory",
#ifdef ENOLINK
ENOLINK, ALL, "remote access failed"
#endif
#ifdef EMULTIHOP
EMULTIHOP, ALL, "remote access failed",
#endif
#ifdef ECOMM
ECOMM, ALL, "remote access failed",
#endif
#ifdef ESTALE
ESTALE, ALL, "remote access failed",
#endif
#ifdef ETIMEDOUT
ETIMEDOUT, ALL, "remote access failed",
#endif
#ifdef ELOOP
ELOOP, ALL, "symbolic link loop",
#endif
E2BIG, E_EXEC, "argument list too long",
#ifdef ELIBACC
ELIBACC, E_EXEC, "shared library missing",
#endif
0, 0, NULL
};
/*
* Return a string describing an error. The returned string may be a
* pointer to a static buffer that will be overwritten on the next call.
* Action describes the operation that got the error.
*/
char *
errmsg(e, action) {
struct errname const *ep;
static char buf[12];
for (ep = errormsg ; ep->errcode ; ep++) {
if (ep->errcode == e && (ep->action & action) != 0)
return ep->msg;
}
fmtstr(buf, sizeof buf, "error %d", e);
return buf;
}