freebsd-skq/usr.bin/xlint/lint2/msg.c

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/* $NetBSD: msg.c,v 1.2 1995/07/03 21:24:56 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Jochen Pohl
* All Rights Reserved.
*
* 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 Jochen Pohl for
* The NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 rcsid[] = "$NetBSD: msg.c,v 1.2 1995/07/03 21:24:56 cgd Exp $";
#endif
#include <string.h>
#include <stdio.h>
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "lint2.h"
static const char *msgs[] = {
"%s used( %s ), but not defined", /* 0 */
"%s defined( %s ), but never used", /* 1 */
"%s declared( %s ), but never used or defined", /* 2 */
"%s multiply defined \t%s :: %s", /* 3 */
"%s value used inconsistently \t%s :: %s", /* 4 */
"%s value declared inconsistently \t%s :: %s", /* 5 */
"%s, arg %d used inconsistently \t%s :: %s", /* 6 */
"%s: variable # of args \t%s :: %s", /* 7 */
"%s returns value which is always ignored", /* 8 */
"%s returns value which is sometimes ignored", /* 9 */
"%s value is used( %s ), but none returned", /* 10 */
"%s, arg %d declared inconsistently \t%s :: %s", /* 11 */
"%s: variable # of args declared \t%s :: %s", /* 12 */
"%s: malformed format string \t%s", /* 13 */
"%s, arg %d inconsistent with format \t%s", /* 14 */
"%s: too few args for format \t%s", /* 15 */
"%s: too many args for format \t%s", /* 16 */
"%s function value must be declared before use \t%s :: %s",/* 17 */
};
static const char *basename __P((const char *));
#ifdef __STDC__
void
msg(int n, ...)
{
#else
void
msg(va_alist)
va_dcl
int n;
{
#endif
va_list ap;
#ifdef __STDC__
va_start(ap, n);
#else
va_start(ap);
n = va_arg(ap, int);
#endif
(void)vprintf(msgs[n], ap);
(void)printf("\n");
va_end(ap);
}
/*
* Return a pointer to the last component of a path.
*/
static const char *
basename(path)
const char *path;
{
const char *cp, *cp1, *cp2;
if (Fflag)
return (path);
cp = cp1 = cp2 = path;
while (*cp != '\0') {
if (*cp++ == '/') {
cp2 = cp1;
cp1 = cp;
}
}
return (*cp1 == '\0' ? cp2 : cp1);
}
/*
* Create a string which describes a position in a source file.
*/
const char *
mkpos(posp)
pos_t *posp;
{
size_t len;
const char *fn;
static char *buf;
static size_t blen = 0;
int qm, src, line;
if (Hflag && posp->p_src != posp->p_isrc) {
src = posp->p_isrc;
line = posp->p_iline;
} else {
src = posp->p_src;
line = posp->p_line;
}
qm = !Hflag && posp->p_src != posp->p_isrc;
len = strlen(fn = basename(fnames[src]));
len += 3 * sizeof (u_short) + 4;
if (len > blen)
buf = xrealloc(buf, blen = len);
if (line != 0) {
(void)sprintf(buf, "%s%s(%hu)",
fn, qm ? "?" : "", line);
} else {
(void)sprintf(buf, "%s", fn);
}
return (buf);
}