1/*	$NetBSD: msg.c,v 1.10 2008/04/26 19:38:30 christos 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#if HAVE_NBTOOL_CONFIG_H
35#include "nbtool_config.h"
36#endif
37
38#include <sys/cdefs.h>
39#if defined(__RCSID) && !defined(lint)
40__RCSID("$NetBSD: msg.c,v 1.10 2008/04/26 19:38:30 christos Exp $");
41#endif
42
43#include <stdio.h>
44#include <stdarg.h>
45#include <string.h>
46
47#include "lint2.h"
48
49static	const	char *msgs[] = {
50	"%s used( %s ), but not defined",			      /* 0 */
51	"%s defined( %s ), but never used",			      /* 1 */
52	"%s declared( %s ), but never used or defined",		      /* 2 */
53	"%s multiply defined  \t%s  ::  %s",			      /* 3 */
54	"%s value used inconsistently  \t%s  ::  %s",		      /* 4 */
55	"%s value declared inconsistently (%s != %s) \t%s  ::  %s",   /* 5 */
56	"%s, arg %d used inconsistently  \t%s[%s]  ::  %s[%s]",	      /* 6 */
57	"%s: variable # of args  \t%s  ::  %s",			      /* 7 */
58	"%s returns value which is always ignored",		      /* 8 */
59	"%s returns value which is sometimes ignored",		      /* 9 */
60	"%s value is used( %s ), but none returned",		      /* 10 */
61	"%s, arg %d declared inconsistently (%s != %s)\t%s :: %s",    /* 11 */
62	"%s: variable # of args declared  \t%s  ::  %s",	      /* 12 */
63	"%s: malformed format string  \t%s",			      /* 13 */
64	"%s, arg %d inconsistent with format  \t%s",		      /* 14 */
65	"%s: too few args for format  \t%s",			      /* 15 */
66	"%s: too many args for format  \t%s",			      /* 16 */
67	"%s function value must be declared before use  \t%s  ::  %s",/* 17 */
68	"%s renamed multiple times  \t%s  ::  %s",		      /* 18 */
69};
70
71static	const	char *lbasename(const char *);
72
73void
74msg(int n, ...)
75{
76	va_list	ap;
77
78	va_start(ap, n);
79
80	(void)vprintf(msgs[n], ap);
81	(void)printf("\n");
82
83	va_end(ap);
84}
85
86/*
87 * Return a pointer to the last component of a path.
88 */
89static const char *
90lbasename(const char *path)
91{
92	const	char *cp, *cp1, *cp2;
93
94	if (Fflag)
95		return (path);
96
97	cp = cp1 = cp2 = path;
98	while (*cp != '\0') {
99		if (*cp++ == '/') {
100			cp2 = cp1;
101			cp1 = cp;
102		}
103	}
104	return (*cp1 == '\0' ? cp2 : cp1);
105}
106
107/*
108 * Create a string which describes a position in a source file.
109 */
110const char *
111mkpos(pos_t *posp)
112{
113	size_t	len;
114	const	char *fn;
115	static	char	*buf;
116	static	size_t	blen = 0;
117	int	qm, src, line;
118
119	if (Hflag && posp->p_src != posp->p_isrc) {
120		src = posp->p_isrc;
121		line = posp->p_iline;
122	} else {
123		src = posp->p_src;
124		line = posp->p_line;
125	}
126	qm = !Hflag && posp->p_src != posp->p_isrc;
127
128	len = strlen(fn = lbasename(fnames[src]));
129	len += 3 * sizeof (u_short) + 4;
130
131	if (len > blen)
132		buf = xrealloc(buf, blen = len);
133	if (line != 0) {
134		(void)sprintf(buf, "%s%s(%d)",
135			      fn, qm ? "?" : "", line);
136	} else {
137		(void)sprintf(buf, "%s", fn);
138	}
139
140	return (buf);
141}
142