xref: /freebsd/crypto/heimdal/lib/asn1/main.c (revision 3078531de10dcae44b253a35125c949ff4235284)
1 /*
2  * Copyright (c) 1997-2005 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include "gen_locl.h"
35 #include <getarg.h>
36 #include "lex.h"
37 
38 RCSID("$Id$");
39 
40 extern FILE *yyin;
41 
42 static getarg_strings preserve;
43 static getarg_strings seq;
44 
45 int
46 preserve_type(const char *p)
47 {
48     int i;
49     for (i = 0; i < preserve.num_strings; i++)
50 	if (strcmp(preserve.strings[i], p) == 0)
51 	    return 1;
52     return 0;
53 }
54 
55 int
56 seq_type(const char *p)
57 {
58     int i;
59     for (i = 0; i < seq.num_strings; i++)
60 	if (strcmp(seq.strings[i], p) == 0)
61 	    return 1;
62     return 0;
63 }
64 
65 int support_ber;
66 int template_flag;
67 int rfc1510_bitstring;
68 int one_code_file;
69 char *option_file;
70 int version_flag;
71 int help_flag;
72 struct getargs args[] = {
73     { "template", 0, arg_flag, &template_flag },
74     { "encode-rfc1510-bit-string", 0, arg_flag, &rfc1510_bitstring },
75     { "decode-dce-ber", 0, arg_flag, &support_ber },
76     { "support-ber", 0, arg_flag, &support_ber },
77     { "preserve-binary", 0, arg_strings, &preserve },
78     { "sequence", 0, arg_strings, &seq },
79     { "one-code-file", 0, arg_flag, &one_code_file },
80     { "option-file", 0, arg_string, &option_file },
81     { "version", 0, arg_flag, &version_flag },
82     { "help", 0, arg_flag, &help_flag }
83 };
84 int num_args = sizeof(args) / sizeof(args[0]);
85 
86 static void
87 usage(int code)
88 {
89     arg_printusage(args, num_args, NULL, "[asn1-file [name]]");
90     exit(code);
91 }
92 
93 int error_flag;
94 
95 int
96 main(int argc, char **argv)
97 {
98     int ret;
99     const char *file;
100     const char *name = NULL;
101     int optidx = 0;
102     char **arg = NULL;
103     size_t len = 0, i;
104 
105     setprogname(argv[0]);
106     if(getarg(args, num_args, argc, argv, &optidx))
107 	usage(1);
108     if(help_flag)
109 	usage(0);
110     if(version_flag) {
111 	print_version(NULL);
112 	exit(0);
113     }
114     if (argc == optidx) {
115 	file = "stdin";
116 	name = "stdin";
117 	yyin = stdin;
118     } else {
119 	file = argv[optidx];
120 	yyin = fopen (file, "r");
121 	if (yyin == NULL)
122 	    err (1, "open %s", file);
123 	if (argc == optidx + 1) {
124 	    char *p;
125 	    name = estrdup(file);
126 	    p = strrchr(name, '.');
127 	    if (p)
128 		*p = '\0';
129 	} else
130 	    name = argv[optidx + 1];
131     }
132 
133     /*
134      * Parse extra options file
135      */
136     if (option_file) {
137 	char buf[1024];
138 	FILE *opt;
139 
140 	opt = fopen(option_file, "r");
141 	if (opt == NULL) {
142 	    perror("open");
143 	    exit(1);
144 	}
145 
146 	arg = calloc(2, sizeof(arg[0]));
147 	if (arg == NULL) {
148 	    perror("calloc");
149 	    exit(1);
150 	}
151 	arg[0] = option_file;
152 	arg[1] = NULL;
153 	len = 1;
154 
155 	while (fgets(buf, sizeof(buf), opt) != NULL) {
156 	    buf[strcspn(buf, "\n\r")] = '\0';
157 
158 	    arg = realloc(arg, (len + 2) * sizeof(arg[0]));
159 	    if (arg == NULL) {
160 		perror("malloc");
161 		exit(1);
162 	    }
163 	    arg[len] = strdup(buf);
164 	    if (arg[len] == NULL) {
165 		perror("strdup");
166 		exit(1);
167 	    }
168 	    arg[len + 1] = NULL;
169 	    len++;
170 	}
171 	fclose(opt);
172 
173 	optidx = 0;
174 	if(getarg(args, num_args, len, arg, &optidx))
175 	    usage(1);
176 
177 	if (len != optidx) {
178 	    fprintf(stderr, "extra args");
179 	    exit(1);
180 	}
181     }
182 
183 
184     init_generate (file, name);
185 
186     if (one_code_file)
187 	generate_header_of_codefile(name);
188 
189     initsym ();
190     ret = yyparse ();
191     if(ret != 0 || error_flag != 0)
192 	exit(1);
193     close_generate ();
194     if (argc != optidx)
195 	fclose(yyin);
196 
197     if (one_code_file)
198 	close_codefile();
199 
200     if (arg) {
201 	for (i = 1; i < len; i++)
202 	    free(arg[i]);
203 	free(arg);
204     }
205 
206     return 0;
207 }
208