1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23/*
24 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
25 * Use is subject to license terms.
26 */
27
28/*	Copyright (c) 1988 AT&T	*/
29/*	  All Rights Reserved  	*/
30
31
32#pragma ident	"%Z%%M%	%I%	%E% SMI"
33
34/*
35 *	Routines to print and adjust options on
36 *	error messages.
37 */
38
39#include	"errmsg.h"
40#include	<stdio.h>
41#include	<stdarg.h>
42#include	<string.h>
43#include	<errno.h>
44#include	<stdlib.h>
45
46/*
47 *	Internal form, to handle both errtext() and _errmsg()
48 */
49/* PRINTFLIKE2 */
50void
51__errtext(int severity, char *format, va_list ap)
52{
53	int	puterrno = 0;		/* true if an errno msg was printed */
54
55	Err.severity = severity;
56	errverb(getenv("ERRVERB"));
57	errbefore(Err.severity, format, ap);
58
59	if (Err.severity == EIGNORE)
60		goto after;
61
62	if (Err.vbell)
63		(void) fputc('\07', stderr);
64	if (Err.vprefix && Err.prefix) {
65		(void) fputs(Err.prefix, stderr);
66		(void) fputc(' ', stderr);
67	}
68	if (Err.vsource) {
69		if (Err.envsource ||
70			(Err.envsource = getenv("ERRSOURCE"))) {
71			(void) fprintf(stderr, "%s: ", Err.envsource);
72		}
73	}
74	if (Err.vsource && Err.source) {
75		(void) fprintf(stderr, "%s: ", Err.source);
76	}
77	if (Err.vsevmsg) {
78		char	**e;
79
80		for (e = Err.sevmsg; *e; e++)
81			;
82		if (Err.severity < (e - Err.sevmsg))
83			(void) fputs(Err.sevmsg[Err.severity], stderr);
84		else
85			(void) fputs("<UNKNOWN>", stderr);
86	}
87
88	if (Err.vtext) {
89		if (Err.vsyserr && ((int)format == EERRNO)) {
90			(void) fflush(stderr);
91			perror("");
92			puterrno = 1;
93		} else {
94			(void) vfprintf(stderr, format, ap);
95			(void) fputs("\n", stderr);
96		}
97	}
98
99	if ((errno && ((int)format != EERRNO)) &&
100	    (Err.vsyserr == EYES || (Err.vsyserr ==  EDEF &&
101	    (Err.severity == EHALT || Err.severity == EERROR)))) {
102		(void) fputc('\t', stderr);
103		(void) fflush(stderr);
104		perror("");
105		puterrno = 1;
106	}
107
108	if (Err.vtag) {
109		if (Err.tagnum)
110			(void) fputc('\t', stderr);
111		else
112			(void) fputs("HELP FACILITY KEY: ", stderr);
113		if (Err.tagstr)
114			(void) fputs(Err.tagstr, stderr);
115		if (Err.tagnum)
116			(void) fprintf(stderr, ", line %d", Err.tagnum);
117		if (puterrno)
118			(void) fprintf(stderr, "\tUXerrno%d", errno);
119		(void) fputc('\n', stderr);
120	}
121
122	if ((Err.vtext || Err.vtag) &&
123	    Err.vfix && Err.tofix && !Err.tagnum)
124		(void) fprintf(stderr, "To Fix:\t%s\n", Err.tofix);
125	after:
126	erraction(errafter(Err.severity, format, ap));
127}
128
129
130/*
131 *	external form, used by errmsg() macro, when tag is not permanently
132 *	assigned.
133 */
134void
135errtext(int severity, char *format, ...)
136{
137	va_list ap;
138
139	va_start(ap, format);
140	__errtext(severity, format, ap);
141	va_end(ap);
142}
143
144
145/*
146 *	external form, used when tag is permanently assigned.
147 */
148void
149_errmsg(char *tag, int severity, char *format, ...)
150{
151	va_list ap;
152
153	Err.tagstr = tag;
154	Err.tagnum = 0;
155	va_start(ap, format);
156	__errtext(severity, format, ap);
157	va_end(ap);
158}
159
160void
161errverb(char *s)
162{
163	char	buf[ BUFSIZ ];
164	char   *token;
165	static char   space[] = ",\t\n";
166
167	if (!s)
168		return;
169	(void) strcpy(buf, s);
170	for (token = errstrtok(buf, space);  token;
171		token = errstrtok((char *)0, space)) {
172		if (strcmp(token, "nochange") == 0) {
173			Err.vbell   =  ENO;
174			Err.vtext   =  EYES;
175			Err.vsource =  EYES;
176			Err.vsyserr =  EYES;
177			Err.vtag    =  ENO;
178			Err.vsevmsg =  ENO;
179			Err.vfix	 =  ENO;
180		} else if (strcmp(token, "silent") == 0) {
181			Err.vbell   =  ENO;
182			Err.vprefix =  ENO;
183			Err.vtext   =  ENO;
184			Err.vsource =  ENO;
185			Err.vsyserr =  ENO;
186			Err.vtag    =  ENO;
187			Err.vsevmsg =  ENO;
188			Err.vfix	 =  ENO;
189		} else if (strcmp(token, "verbose") == 0) {
190			Err.vbell   =  EYES;
191			Err.vprefix =  EYES;
192			Err.vtext   =  EYES;
193			Err.vsource =  EYES;
194			Err.vsyserr =  EYES;
195			Err.vtag    =  EYES;
196			Err.vsevmsg =  EYES;
197			Err.vfix	 =  EYES;
198		} else if (strcmp(token, "expert") == 0) {
199			Err.vbell   =  ENO;
200			Err.vprefix =  ENO;
201			Err.vtext   =  EYES;
202			Err.vsource =  EYES;
203			Err.vsyserr =  EYES;
204			Err.vtag    =  ENO;
205			Err.vsevmsg =  EYES;
206			Err.vfix	 =  ENO;
207		} else if (strcmp(token, "bell") == 0) {
208			Err.vbell = EYES;
209		} else if (strcmp(token, "nobell") == 0) {
210			Err.vbell = ENO;
211		} else if (strcmp(token, "tag") == 0) {
212			Err.vtag = EYES;
213		} else if (strcmp(token, "notag") == 0) {
214			Err.vtag = ENO;
215		} else if (strcmp(token, "text") == 0) {
216			Err.vtext = EYES;
217		} else if (strcmp(token, "notext") == 0) {
218			Err.vtext = ENO;
219		} else if (strcmp(token, "tofix") == 0) {
220			Err.vfix = EYES;
221		} else if (strcmp(token, "notofix") == 0) {
222			Err.vfix = ENO;
223		} else if (strcmp(token, "syserr") == 0) {
224			Err.vsyserr = EYES;
225		} else if (strcmp(token, "nosyserr") == 0) {
226			Err.vsyserr = ENO;
227		} else if (strcmp(token, "defsyserr") == 0) {
228			Err.vsyserr = EDEF;
229		} else if (strcmp(token, "source")) {
230			Err.vsource = EYES;
231		} else if (strcmp(token, "nosource")  == 0) {
232			Err.vsource = ENO;
233		} else if (strcmp(token, "sevmsg") == 0) {
234			Err.vsevmsg = EYES;
235		} else if (strcmp(token, "nosevmsg") == 0) {
236			Err.vsevmsg = ENO;
237		} else if (strcmp(token, "prefix") == 0) {
238			Err.vprefix = EYES;
239		} else if (strcmp(token, "noprefix") == 0) {
240			Err.vprefix = ENO;
241		}
242	}
243}
244