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main2.c revision 1.10 
      1 /*	$NetBSD: main2.c,v 1.10 2021/01/04 22:26:51 rillig 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: main2.c,v 1.10 2021/01/04 22:26:51 rillig Exp $");
     41 #endif
     42 
     43 #include <stdio.h>
     44 #include <stdlib.h>
     45 #include <string.h>
     46 #include <unistd.h>
     47 
     48 #include "lint2.h"
     49 
     50 /* warnings for symbols which are declared but not defined or used */
     51 int	xflag;
     52 
     53 /*
     54  * warnings for symbols which are used and not defined or defined
     55  * and not used
     56  */
     57 int	uflag = 1;
     58 
     59 /* Create a lint library in the current directory with name libname. */
     60 int	Cflag;
     61 const	char *libname;
     62 
     63 int	pflag;
     64 
     65 /*
     66  * warnings for (tentative) definitions of the same name in more than
     67  * one translation unit
     68  */
     69 int	sflag;
     70 
     71 int	tflag;
     72 
     73 /*
     74  * If a complaint stems from a included file, print the name of the included
     75  * file instead of the name specified at the command line followed by '?'
     76  */
     77 int	Hflag;
     78 
     79 int	hflag;
     80 
     81 /* Print full path names, not only the last component */
     82 int	Fflag;
     83 
     84 /*
     85  * List of libraries (from -l flag). These libraries are read after all
     86  * other input files has been read and, for Cflag, after the new lint library
     87  * has been written.
     88  */
     89 const	char	**libs;
     90 
     91 static	void	usage(void);
     92 
     93 int
     94 main(int argc, char *argv[])
     95 {
     96 	int	c, i;
     97 	size_t	len;
     98 	char	*lname;
     99 
    100 	libs = xcalloc(1, sizeof (char *));
    101 
    102 	opterr = 0;
    103 	while ((c = getopt(argc, argv, "hpstxuC:HFl:")) != -1) {
    104 		switch (c) {
    105 		case 's':
    106 			sflag = 1;
    107 			break;
    108 		case 't':
    109 			tflag = 1;
    110 			break;
    111 		case 'u':
    112 			uflag = 0;
    113 			break;
    114 		case 'x':
    115 			xflag = 1;
    116 			break;
    117 		case 'p':
    118 			pflag = 1;
    119 			break;
    120 		case 'C':
    121 			len = strlen(optarg);
    122 			lname = xmalloc(len + 10);
    123 			(void)sprintf(lname, "llib-l%s.ln", optarg);
    124 			libname = lname;
    125 			Cflag = 1;
    126 			uflag = 0;
    127 			break;
    128 		case 'H':
    129 			Hflag = 1;
    130 			break;
    131 		case 'h':
    132 			hflag++;
    133 			break;
    134 		case 'F':
    135 			Fflag = 1;
    136 			break;
    137 		case 'l':
    138 			for (i = 0; libs[i] != NULL; i++)
    139 				continue;
    140 			libs = xrealloc(libs, (i + 2) * sizeof (char *));
    141 			libs[i] = xstrdup(optarg);
    142 			libs[i + 1] = NULL;
    143 			break;
    144 		case '?':
    145 			usage();
    146 		}
    147 	}
    148 
    149 	argc -= optind;
    150 	argv += optind;
    151 
    152 	if (argc == 0)
    153 		usage();
    154 
    155 	initmem();
    156 
    157 	/* initialize hash table */
    158 	inithash();
    159 
    160 	inittyp();
    161 
    162 	for (i = 0; i < argc; i++)
    163 		readfile(argv[i]);
    164 
    165 	/* write the lint library */
    166 	if (Cflag) {
    167 		forall(mkstatic);
    168 		outlib(libname);
    169 	}
    170 
    171 	/* read additional libraries */
    172 	for (i = 0; libs[i] != NULL; i++)
    173 		readfile(libs[i]);
    174 
    175 	forall(mkstatic);
    176 
    177 	mainused();
    178 
    179 	/* perform all tests */
    180 	forall(chkname);
    181 
    182 	exit(0);
    183 	/* NOTREACHED */
    184 }
    185 
    186 static void
    187 usage(void)
    188 {
    189 	(void)fprintf(stderr,
    190 		      "usage: lint2 -hpstxuHF -Clib -l lib ... src1 ...\n");
    191 	exit(1);
    192 }
    193