[unix-history] / bin / sh / errmsg.c

/*-
 * Copyright (c) 1991 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[] = "from: @(#)errmsg.c	5.1 (Berkeley) 3/7/91";*/
static char rcsid[] = "errmsg.c,v 1.4 1993/08/01 18:58:20 mycroft Exp";
#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;
}
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1991 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Kenneth Almquist.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in the
	15	* documentation and/or other materials provided with the distribution.
	16	* 3. All advertising materials mentioning features or use of this software
	17	* must display the following acknowledgement:
	18	* This product includes software developed by the University of
	19	* California, Berkeley and its contributors.
	20	* 4. Neither the name of the University nor the names of its contributors
	21	* may be used to endorse or promote products derived from this software
	22	* without specific prior written permission.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	34	* SUCH DAMAGE.
	35	*/
	36
	37	#ifndef lint
78ed81a3	38	/static char sccsid[] = "from: @(#)errmsg.c 5.1 (Berkeley) 3/7/91";/
78ed81a3	39	static char rcsid[] = "errmsg.c,v 1.4 1993/08/01 18:58:20 mycroft Exp";
15637ed4 RG	40	#endif /* not lint */
	41
	42	#include "shell.h"
	43	#include "output.h"
	44	#include "errmsg.h"
	45	#include <errno.h>
	46
	47
	48	#define ALL (E_OPEN\|E_CREAT\|E_EXEC)
	49
	50
	51	struct errname {
	52	short errcode; /* error number */
	53	short action; /* operation which encountered the error */
	54	char msg; / text describing the error */
	55	};
	56
	57
	58	STATIC const struct errname errormsg[] = {
	59	EINTR, ALL, "interrupted",
	60	EACCES, ALL, "permission denied",
	61	EIO, ALL, "I/O error",
	62	ENOENT, E_OPEN, "no such file",
	63	ENOENT, E_CREAT, "directory nonexistent",
	64	ENOENT, E_EXEC, "not found",
	65	ENOTDIR, E_OPEN, "no such file",
	66	ENOTDIR, E_CREAT, "directory nonexistent",
	67	ENOTDIR, E_EXEC, "not found",
	68	EISDIR, ALL, "is a directory",
	69	/* EMFILE, ALL, "too many open files", */
	70	ENFILE, ALL, "file table overflow",
	71	ENOSPC, ALL, "file system full",
	72	#ifdef EDQUOT
	73	EDQUOT, ALL, "disk quota exceeded",
	74	#endif
	75	#ifdef ENOSR
	76	ENOSR, ALL, "no streams resources",
	77	#endif
	78	ENXIO, ALL, "no such device or address",
	79	EROFS, ALL, "read-only file system",
	80	ETXTBSY, ALL, "text busy",
	81	#ifdef SYSV
	82	EAGAIN, E_EXEC, "not enough memory",
	83	#endif
	84	ENOMEM, ALL, "not enough memory",
	85	#ifdef ENOLINK
	86	ENOLINK, ALL, "remote access failed"
	87	#endif
	88	#ifdef EMULTIHOP
	89	EMULTIHOP, ALL, "remote access failed",
	90	#endif
	91	#ifdef ECOMM
	92	ECOMM, ALL, "remote access failed",
	93	#endif
	94	#ifdef ESTALE
	95	ESTALE, ALL, "remote access failed",
	96	#endif
	97	#ifdef ETIMEDOUT
	98	ETIMEDOUT, ALL, "remote access failed",
	99	#endif
	100	#ifdef ELOOP
	101	ELOOP, ALL, "symbolic link loop",
	102	#endif
	103	E2BIG, E_EXEC, "argument list too long",
104	#ifdef ELIBACC
105	ELIBACC, E_EXEC, "shared library missing",
106	#endif
107	0, 0, NULL
108	};
109
110
111	/*
112	* Return a string describing an error. The returned string may be a
113	* pointer to a static buffer that will be overwritten on the next call.
114	* Action describes the operation that got the error.
115	*/
116
117	char *
118	errmsg(e, action) {
119	struct errname const *ep;
120	static char buf[12];
121
122	for (ep = errormsg ; ep->errcode ; ep++) {
123	if (ep->errcode == e && (ep->action & action) != 0)
124	return ep->msg;
125	}
126	fmtstr(buf, sizeof buf, "error %d", e);
127	return buf;
128	}