1/*	$NetBSD: msg.c,v 1.6 2002/01/21 19:49:52 tv Exp $	*/
2
3/*
4 * Copyright (c) 1994, 1995 Jochen Pohl
5 * All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Jochen Pohl for
18 *	The NetBSD Project.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD$");
36#if defined(__RCSID) && !defined(lint)
37__RCSID("$NetBSD: msg.c,v 1.6 2002/01/21 19:49:52 tv Exp $");
38#endif
39
40#include <stdio.h>
41#include <stdarg.h>
42#include <string.h>
43
44#include "lint2.h"
45
46static	const	char *msgs[] = {
47	"%s used( %s ), but not defined",			      /* 0 */
48	"%s defined( %s ), but never used",			      /* 1 */
49	"%s declared( %s ), but never used or defined",		      /* 2 */
50	"%s multiply defined  \t%s  ::  %s",			      /* 3 */
51	"%s value used inconsistently  \t%s  ::  %s",		      /* 4 */
52	"%s value declared inconsistently  \t%s  ::  %s",	      /* 5 */
53	"%s, arg %d used inconsistently  \t%s  ::  %s",		      /* 6 */
54	"%s: variable # of args  \t%s  ::  %s",			      /* 7 */
55	"%s returns value which is always ignored",		      /* 8 */
56	"%s returns value which is sometimes ignored",		      /* 9 */
57	"%s value is used( %s ), but none returned",		      /* 10 */
58	"%s, arg %d declared inconsistently  \t%s :: %s",	      /* 11 */
59	"%s: variable # of args declared  \t%s  ::  %s",	      /* 12 */
60	"%s: malformed format string  \t%s",			      /* 13 */
61	"%s, arg %d inconsistent with format  \t%s",		      /* 14 */
62	"%s: too few args for format  \t%s",			      /* 15 */
63	"%s: too many args for format  \t%s",			      /* 16 */
64	"%s function value must be declared before use  \t%s  ::  %s",/* 17 */
65	"%s renamed multiple times  \t%s  ::  %s",		      /* 18 */
66};
67
68static	const	char *lbasename(const char *);
69
70void
71msg(int n, ...)
72{
73	va_list	ap;
74
75	va_start(ap, n);
76
77	(void)vprintf(msgs[n], ap);
78	(void)printf("\n");
79
80	va_end(ap);
81}
82
83/*
84 * Return a pointer to the last component of a path.
85 */
86static const char *
87lbasename(const char *path)
88{
89	const	char *cp, *cp1, *cp2;
90
91	if (Fflag)
92		return (path);
93
94	cp = cp1 = cp2 = path;
95	while (*cp != '\0') {
96		if (*cp++ == '/') {
97			cp2 = cp1;
98			cp1 = cp;
99		}
100	}
101	return (*cp1 == '\0' ? cp2 : cp1);
102}
103
104/*
105 * Create a string which describes a position in a source file.
106 */
107const char *
108mkpos(pos_t *posp)
109{
110	size_t	len;
111	const	char *fn;
112	static	char	*buf;
113	static	size_t	blen = 0;
114	int	qm, src, line;
115
116	if (Hflag && posp->p_src != posp->p_isrc) {
117		src = posp->p_isrc;
118		line = posp->p_iline;
119	} else {
120		src = posp->p_src;
121		line = posp->p_line;
122	}
123	qm = !Hflag && posp->p_src != posp->p_isrc;
124
125	len = strlen(fn = lbasename(fnames[src]));
126	len += 3 * sizeof (u_short) + 4;
127
128	if (len > blen)
129		buf = xrealloc(buf, blen = len);
130	if (line != 0) {
131		(void)sprintf(buf, "%s%s(%d)",
132			      fn, qm ? "?" : "", line);
133	} else {
134		(void)sprintf(buf, "%s", fn);
135	}
136
137	return (buf);
138}
139