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main2.c revision 1.1.1.1 
      1 /*
      2  * Copyright (c) 1994, 1995 Jochen Pohl
      3  * All Rights Reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *      This product includes software developed by Jochen Pohl for
     16  *	The NetBSD Project.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  *
     31  *	$Id: main2.c,v 1.1.1.1 1995/07/03 20:56:38 cgd Exp $
     32  */
     33 
     34 #ifndef lint
     35 static char rcsid[] = "$Id: main2.c,v 1.1.1.1 1995/07/03 20:56:38 cgd Exp $";
     36 #endif
     37 
     38 #include <stdio.h>
     39 #include <stdlib.h>
     40 #include <string.h>
     41 #include <unistd.h>
     42 
     43 #include "lint2.h"
     44 
     45 /* warnings for symbols which are declared but not defined or used */
     46 int	xflag;
     47 
     48 /*
     49  * warnings for symbols which are used and not defined or defined
     50  * and not used
     51  */
     52 int	uflag = 1;
     53 
     54 /* Create a lint library in the current directory with name libname. */
     55 int	Cflag;
     56 const	char *libname;
     57 
     58 int	pflag;
     59 
     60 /*
     61  * warnings for (tentative) definitions of the same name in more then
     62  * one translation unit
     63  */
     64 int	sflag;
     65 
     66 int	tflag;
     67 
     68 /*
     69  * If a complaint stems from a included file, print the name of the included
     70  * file instead of the name spezified at the command line followed by '?'
     71  */
     72 int	Hflag;
     73 
     74 int	hflag;
     75 
     76 /* Print full path names, not only the last component */
     77 int	Fflag;
     78 
     79 /*
     80  * List of libraries (from -l flag). These libraries are read after all
     81  * other input files has been read and, for Cflag, after the new lint library
     82  * has been written.
     83  */
     84 const	char	**libs;
     85 
     86 static	void	usage __P((void));
     87 
     88 
     89 int
     90 main(argc, argv)
     91 	int	argc;
     92 	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 			libs = xrealloc(libs, (i + 2) * sizeof (char *));
    138 			libs[i] = xstrdup(optarg);
    139 			libs[i + 1] = NULL;
    140 			break;
    141 		case '?':
    142 			usage();
    143 		}
    144 	}
    145 
    146 	argc -= optind;
    147 	argv += optind;
    148 
    149 	if (argc == 0)
    150 		usage();
    151 
    152 	initmem();
    153 
    154 	/* initialize hash table */
    155 	inithash();
    156 
    157 	inittyp();
    158 
    159 	for (i = 0; i < argc; i++)
    160 		readfile(argv[i]);
    161 
    162 	/* write the lint library */
    163 	if (Cflag) {
    164 		forall(mkstatic);
    165 		outlib(libname);
    166 	}
    167 
    168 	/* read additional libraries */
    169 	for (i = 0; libs[i] != NULL; i++)
    170 		readfile(libs[i]);
    171 
    172 	forall(mkstatic);
    173 
    174 	mainused();
    175 
    176 	/* perform all tests */
    177 	forall(chkname);
    178 
    179 	exit(0);
    180 	/* NOTREACHED */
    181 }
    182 
    183 static void
    184 usage()
    185 {
    186 	(void)fprintf(stderr,
    187 		      "usage: lint2 -hpstxuHF -Clib -l lib ... src1 ...\n");
    188 	exit(1);
    189 }
    190 
    191