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main2.c revision 1.5 
      1 /*	$NetBSD: main2.c,v 1.5 2001/11/21 19:14:26 wiz 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 #ifndef lint
     36 __RCSID("$NetBSD: main2.c,v 1.5 2001/11/21 19:14:26 wiz Exp $");
     37 #endif
     38 
     39 #include <stdio.h>
     40 #include <stdlib.h>
     41 #include <string.h>
     42 #include <unistd.h>
     43 
     44 #include "lint2.h"
     45 
     46 /* warnings for symbols which are declared but not defined or used */
     47 int	xflag;
     48 
     49 /*
     50  * warnings for symbols which are used and not defined or defined
     51  * and not used
     52  */
     53 int	uflag = 1;
     54 
     55 /* Create a lint library in the current directory with name libname. */
     56 int	Cflag;
     57 const	char *libname;
     58 
     59 int	pflag;
     60 
     61 /*
     62  * warnings for (tentative) definitions of the same name in more than
     63  * one translation unit
     64  */
     65 int	sflag;
     66 
     67 int	tflag;
     68 
     69 /*
     70  * If a complaint stems from a included file, print the name of the included
     71  * file instead of the name spezified at the command line followed by '?'
     72  */
     73 int	Hflag;
     74 
     75 int	hflag;
     76 
     77 /* Print full path names, not only the last component */
     78 int	Fflag;
     79 
     80 /*
     81  * List of libraries (from -l flag). These libraries are read after all
     82  * other input files has been read and, for Cflag, after the new lint library
     83  * has been written.
     84  */
     85 const	char	**libs;
     86 
     87 static	void	usage(void);
     88 
     89 int main(int, char *[]);
     90 
     91 int
     92 main(int argc, char *argv[])
     93 {
     94 	int	c, i;
     95 	size_t	len;
     96 	char	*lname;
     97 
     98 	libs = xcalloc(1, sizeof (char *));
     99 
    100 	opterr = 0;
    101 	while ((c = getopt(argc, argv, "hpstxuC:HFl:")) != -1) {
    102 		switch (c) {
    103 		case 's':
    104 			sflag = 1;
    105 			break;
    106 		case 't':
    107 			tflag = 1;
    108 			break;
    109 		case 'u':
    110 			uflag = 0;
    111 			break;
    112 		case 'x':
    113 			xflag = 1;
    114 			break;
    115 		case 'p':
    116 			pflag = 1;
    117 			break;
    118 		case 'C':
    119 			len = strlen(optarg);
    120 			lname = xmalloc(len + 10);
    121 			(void)sprintf(lname, "llib-l%s.ln", optarg);
    122 			libname = lname;
    123 			Cflag = 1;
    124 			uflag = 0;
    125 			break;
    126 		case 'H':
    127 			Hflag = 1;
    128 			break;
    129 		case 'h':
    130 			hflag = 1;
    131 			break;
    132 		case 'F':
    133 			Fflag = 1;
    134 			break;
    135 		case 'l':
    136 			for (i = 0; libs[i] != NULL; i++)
    137 				continue;
    138 			libs = xrealloc(libs, (i + 2) * sizeof (char *));
    139 			libs[i] = xstrdup(optarg);
    140 			libs[i + 1] = NULL;
    141 			break;
    142 		case '?':
    143 			usage();
    144 		}
    145 	}
    146 
    147 	argc -= optind;
    148 	argv += optind;
    149 
    150 	if (argc == 0)
    151 		usage();
    152 
    153 	initmem();
    154 
    155 	/* initialize hash table */
    156 	inithash();
    157 
    158 	inittyp();
    159 
    160 	for (i = 0; i < argc; i++)
    161 		readfile(argv[i]);
    162 
    163 	/* write the lint library */
    164 	if (Cflag) {
    165 		forall(mkstatic);
    166 		outlib(libname);
    167 	}
    168 
    169 	/* read additional libraries */
    170 	for (i = 0; libs[i] != NULL; i++)
    171 		readfile(libs[i]);
    172 
    173 	forall(mkstatic);
    174 
    175 	mainused();
    176 
    177 	/* perform all tests */
    178 	forall(chkname);
    179 
    180 	exit(0);
    181 	/* NOTREACHED */
    182 }
    183 
    184 static void
    185 usage(void)
    186 {
    187 	(void)fprintf(stderr,
    188 		      "usage: lint2 -hpstxuHF -Clib -l lib ... src1 ...\n");
    189 	exit(1);
    190 }
    191