summaryrefslogtreecommitdiff
path: root/usr.bin/xlint/lint1/main1.c
blob: a8f133df747968a99ab3f355147fc4fd4f00b990 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*	$OpenBSD: main1.c,v 1.11 2006/05/29 20:47:22 cloder Exp $	*/
/*	$NetBSD: main1.c,v 1.3 1995/10/02 17:29:56 jpo Exp $	*/

/*
 * Copyright (c) 1994, 1995 Jochen Pohl
 * All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Jochen Pohl for
 *	The NetBSD Project.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef lint
static char rcsid[] = "$OpenBSD: main1.c,v 1.11 2006/05/29 20:47:22 cloder Exp $";
#endif

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>

#include "lint1.h"

/* set yydebug to 1*/
int	yflag;

/* Print warnings for pointer casts. */
int	cflag;

/* Print various debug information. */
int	dflag;

/* Perform stricter checking of enum types and operations on enum types. */
int	eflag;

/* Print complete pathnames, not only the basename. */
int	Fflag = 1;

/* After an error or warning, print the actual text of the program source code */
int	fflag = 0;

/* Enable some extensions of gcc */
int	gflag;

/*
 * Apply a number of heuristic tests to attempt to intuit bugs, improve
 * style, and reduce waste.
 */
int	hflag;

/* Attempt to check portability to other dialects of C. */
int	pflag;

/*
 * In case of redeclarations/redefinitions print the location of the
 * previous declaration/definition.
 */
int	rflag;

/* Strict ANSI C mode. */
int	sflag;

/*
 * Complain about functions and external variables used and not defined,
 * or defined and not used.
 */
int	uflag = 1;

/* Complain about unused function arguments. */
int	vflag = 1;

/* Complain about structures which are never defined. */
int	zflag = 0;

static	void	usage(void);

int
main(int argc, char *argv[])
{
	int	c;

	while ((c = getopt(argc, argv, "abcdefghprstuvyzF")) != -1) {
		switch (c) {
		case 'a':	/* obsolete */	break;
		case 'b':	/* obsolete */	break;
		case 'c':	cflag = 1;	break;
		case 'd':	dflag = 1;	break;
		case 'e':	eflag = 1;	break;
		case 'F':	Fflag = 1;	break;
		case 'g':	gflag = 1;	break;
		case 'h':	hflag = 1;	break;
		case 'f':	fflag = 1;	break;
		case 'p':	pflag = 1;	break;
		case 'r':	rflag = 1;	break;
		case 's':	sflag = 1;	break;
		case 't':	/* obsolete */	break;
		case 'u':	uflag = 0;	break;
		case 'v':	vflag = 0;	break;
		case 'y':	yflag = 1;	break;
		case 'z':	zflag = 0;	break;
		case '?':	usage();
		}
	}
	argc -= optind;
	argv += optind;

	if (argc != 2)
		usage();

	/* open the input file */
	if ((yyin = fopen(argv[0], "r")) == NULL)
		err(1, "cannot open '%s'", argv[0]);

	/* initialize output */
	outopen(argv[1]);

#if YYDEBUG
	if (yflag)
		yydebug = 1;
#endif

	initmem();
	initdecl();
	initscan();
	initmtab();

	yyparse();

	/* Following warnings cannot be suppressed by LINTED */
	nowarn = 0;

	chkglsyms();

	outclose();

	return (nerr != 0);
}

static void
usage(void)
{
	(void)fprintf(stderr, "usage: lint1 [-abcdeghprstuvyzF] src dest\n");
	exit(1);
}

void
norecover(void)
{
	/* cannot recover from previous errors */
	error(224);
	exit(1);
}