1 /* $NetBSD: main1.c,v 1.17 2006/11/08 18:31:15 christos 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 #if defined(__RCSID) && !defined(lint)
36 __RCSID("$NetBSD: main1.c,v 1.17 2006/11/08 18:31:15 christos Exp $");
37 #endif
38 __FBSDID("$FreeBSD$");
39
40 #include <sys/types.h>
41 #include <stdio.h>
42 #include <string.h>
43 #include <stdlib.h>
44 #include <unistd.h>
45 #include <err.h>
46 #include <errno.h>
47 #include <limits.h>
48
49 #include "lint1.h"
50
51 /* set yydebug to 1*/
52 int yflag;
53
54 /*
55 * Print warnings if an assignment of an integertype to another integertype
56 * causes an implicit narrowing conversion. If aflag is 1, these warnings
57 * are printed only if the source type is at least as wide as long. If aflag
58 * is greater than 1, they are always printed.
59 */
60 int aflag;
61
62 /* Print a warning if a break statement cannot be reached. */
63 int bflag;
64
65 /* Print warnings for pointer casts. */
66 int cflag;
67
68 /* Print various debug information. */
69 int dflag;
70
71 /* Perform stricter checking of enum types and operations on enum types. */
72 int eflag;
73
74 /* Print complete pathnames, not only the basename. */
75 int Fflag;
76
77 /* Enable some extensions of gcc */
78 int gflag;
79
80 /* Treat warnings as errors */
81 int wflag;
82
83 /*
84 * Apply a number of heuristic tests to attempt to intuit bugs, improve
85 * style, and reduce waste.
86 */
87 int hflag;
88
89 /* Attempt to check portability to other dialects of C. */
90 int pflag;
91
92 /*
93 * In case of redeclarations/redefinitions print the location of the
94 * previous declaration/definition.
95 */
96 int rflag;
97
98 /* Strict ANSI C mode. */
99 int sflag;
100
101 /* Traditional C mode. */
102 int tflag;
103
104 /* Enable C9X extensions */
105 int Sflag;
106 /*
107 * Complain about functions and external variables used and not defined,
108 * or defined and not used.
109 */
110 int uflag = 1;
111
112 /* Complain about unused function arguments. */
113 int vflag = 1;
114
115 /* Complain about structures which are never defined. */
116 int zflag = 1;
117
118 err_set msgset;
119
120 static void usage(void);
121
122 int main(int, char *[]);
123
124 int
main(int argc,char * argv[])125 main(int argc, char *argv[])
126 {
127 int c;
128 char *ptr;
129
130 ERR_ZERO(&msgset);
131 while ((c = getopt(argc, argv, "abcdeghmprstuvwyzFSX:")) != -1) {
132 switch (c) {
133 case 'a': aflag++; break;
134 case 'b': bflag = 1; break;
135 case 'c': cflag = 1; break;
136 case 'd': dflag = 1; break;
137 case 'e': eflag = 1; break;
138 case 'F': Fflag = 1; break;
139 case 'g': gflag = 1; break;
140 case 'h': hflag = 1; break;
141 case 'p': pflag = 1; break;
142 case 'r': rflag = 1; break;
143 case 's': sflag = 1; break;
144 case 'S': Sflag = 1; break;
145 case 't': tflag = 1; break;
146 case 'u': uflag = 0; break;
147 case 'w': wflag = 1; break;
148 case 'v': vflag = 0; break;
149 case 'y': yflag = 1; break;
150 case 'z': zflag = 0; break;
151
152 case 'm':
153 msglist();
154 return(0);
155
156 case 'X':
157 for (ptr = strtok(optarg, ","); ptr;
158 ptr = strtok(NULL, ",")) {
159 char *eptr;
160 long msg;
161
162 errno = 0;
163 msg = strtol(ptr, &eptr, 0);
164 if ((msg == LONG_MIN || msg == LONG_MAX) &&
165 errno == ERANGE)
166 err(1, "invalid error message id '%s'",
167 ptr);
168 if (*eptr || ptr == eptr || msg < 0 ||
169 msg >= ERR_SETSIZE)
170 errx(1, "invalid error message id '%s'",
171 ptr);
172 ERR_SET(msg, &msgset);
173 }
174 break;
175 case '?':
176 default:
177 usage();
178 break;
179 }
180 }
181 argc -= optind;
182 argv += optind;
183
184 if (argc != 2)
185 usage();
186
187 /* open the input file */
188 if ((yyin = fopen(argv[0], "r")) == NULL)
189 err(1, "cannot open '%s'", argv[0]);
190
191 /* initialize output */
192 outopen(argv[1]);
193
194 if (yflag)
195 yydebug = 1;
196
197 initmem();
198 initdecl();
199 initscan();
200 initmtab();
201
202 yyparse();
203
204 /* Following warnings cannot be suppressed by LINTED */
205 nowarn = 0;
206 #ifdef DEBUG
207 printf("%s, %d: nowarn = 0\n", curr_pos.p_file, curr_pos.p_line);
208 #endif
209 chkglsyms();
210
211 outclose();
212
213 return (nerr != 0);
214 }
215
216 static void
usage(void)217 usage(void)
218 {
219 (void)fprintf(stderr,
220 "usage: lint1 [-abcdeghmprstuvwyzFS] [-X <id>[,<id>]... src dest\n");
221 exit(1);
222 }
223
224 void
norecover(void)225 norecover(void)
226 {
227 /* cannot recover from previous errors */
228 error(224);
229 exit(1);
230 }
231