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main2.c revision 1.15 
      1 /*	$NetBSD: main2.c,v 1.15 2021/04/02 12:16:50 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 1.15 2021/04/02 12:16:50 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 bool	xflag;
     52 
     53 /*
     54  * warnings for symbols which are used and not defined or defined
     55  * and not used
     56  */
     57 bool	uflag = true;
     58 
     59 /* Create a lint library in the current directory with name libname. */
     60 bool	Cflag;
     61 const char *libname;
     62 
     63 bool	pflag;
     64 
     65 /*
     66  * warnings for (tentative) definitions of the same name in more than
     67  * one translation unit
     68  */
     69 bool	sflag;
     70 
     71 bool	Tflag;
     72 bool	tflag;
     73 
     74 /*
     75  * If a complaint stems from a included file, print the name of the included
     76  * file instead of the name specified at the command line followed by '?'
     77  */
     78 bool	Hflag;
     79 
     80 bool	hflag;
     81 
     82 /* Print full path names, not only the last component */
     83 bool	Fflag;
     84 
     85 /*
     86  * List of libraries (from -l flag). These libraries are read after all
     87  * other input files has been read and, for Cflag, after the new lint library
     88  * has been written.
     89  */
     90 const char **libs;
     91 
     92 static	void	usage(void);
     93 
     94 int
     95 main(int argc, char *argv[])
     96 {
     97 	int	c, i;
     98 	size_t	len;
     99 	char	*lname;
    100 
    101 	libs = xcalloc(1, sizeof(*libs));
    102 
    103 	opterr = 0;
    104 	while ((c = getopt(argc, argv, "hpstxuC:HTFl:")) != -1) {
    105 		switch (c) {
    106 		case 's':
    107 			sflag = true;
    108 			break;
    109 		case 'T':
    110 			Tflag = true;
    111 			break;
    112 		case 't':
    113 			tflag = true;
    114 			break;
    115 		case 'u':
    116 			uflag = false;
    117 			break;
    118 		case 'x':
    119 			xflag = true;
    120 			break;
    121 		case 'p':
    122 			pflag = true;
    123 			break;
    124 		case 'C':
    125 			len = strlen(optarg);
    126 			lname = xmalloc(len + 10);
    127 			(void)sprintf(lname, "llib-l%s.ln", optarg);
    128 			libname = lname;
    129 			Cflag = true;
    130 			uflag = false;
    131 			break;
    132 		case 'H':
    133 			Hflag = true;
    134 			break;
    135 		case 'h':
    136 			hflag = true;
    137 			break;
    138 		case 'F':
    139 			Fflag = true;
    140 			break;
    141 		case 'l':
    142 			for (i = 0; libs[i] != NULL; i++)
    143 				continue;
    144 			libs = xrealloc(libs, (i + 2) * sizeof(*libs));
    145 			libs[i] = xstrdup(optarg);
    146 			libs[i + 1] = NULL;
    147 			break;
    148 		case '?':
    149 			usage();
    150 		}
    151 	}
    152 
    153 	argc -= optind;
    154 	argv += optind;
    155 
    156 	if (argc == 0)
    157 		usage();
    158 
    159 	initmem();
    160 
    161 	/* initialize hash table */
    162 	inithash();
    163 
    164 	inittyp();
    165 
    166 	for (i = 0; i < argc; i++)
    167 		readfile(argv[i]);
    168 
    169 	/* write the lint library */
    170 	if (Cflag) {
    171 		forall(mkstatic);
    172 		outlib(libname);
    173 	}
    174 
    175 	/* read additional libraries */
    176 	for (i = 0; libs[i] != NULL; i++)
    177 		readfile(libs[i]);
    178 
    179 	forall(mkstatic);
    180 
    181 	mainused();
    182 
    183 	/* perform all tests */
    184 	forall(chkname);
    185 
    186 	exit(0);
    187 	/* NOTREACHED */
    188 }
    189 
    190 static void
    191 usage(void)
    192 {
    193 	(void)fprintf(stderr,
    194 		      "usage: lint2 -hpstxuHFT -Clib -l lib ... src1 ...\n");
    195 	exit(1);
    196 }
    197