text: /*	$NetBSD: msg.c,v 1.6 2002/01/21 19:49:52 tv 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.
   */
  
  #include <sys/cdefs.h>
  __FBSDID("$FreeBSD$");
  #if defined(__RCSID) && !defined(lint)
  __RCSID("$NetBSD: msg.c,v 1.6 2002/01/21 19:49:52 tv Exp $");
  #endif
  
  #include <stdio.h>
  #include <stdarg.h>
  #include <string.h>
  
  #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 */
  	"%s renamed multiple times  \t%s  ::  %s",		      /* 18 */
  };
  
  static	const	char *lbasename(const char *);
  
  void
  msg(int n, ...)
  {
  	va_list	ap;
  
  	va_start(ap, n);
  
  	(void)vprintf(msgs[n], ap);
  	(void)printf("\n");
  
  	va_end(ap);
  }
  
  /*
   * Return a pointer to the last component of a path.
   */
  static const char *
  lbasename(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(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 = lbasename(fnames[src]));
  	len += 3 * sizeof (u_short) + 4;
  
  	if (len > blen)
  		buf = xrealloc(buf, blen = len);
  	if (line != 0) {
  		(void)sprintf(buf, "%s%s(%d)",
  			      fn, qm ? "?" : "", line);
  	} else {
  		(void)sprintf(buf, "%s", fn);
  	}
  
  	return (buf);
  }
  