1 /*
2 * Copyright (c) 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 "der_locl.h"
35 #include <com_err.h>
36 #include <sys/types.h>
37 #include <sys/stat.h>
38 #include <ctype.h>
39 #include <getarg.h>
40 #include <hex.h>
41 #include <err.h>
42
43 RCSID("$Id$");
44
45 static int
doit(const char * fn)46 doit(const char *fn)
47 {
48 char buf[2048];
49 char *fnout = NULL;
50 const char *bname;
51 unsigned long line = 0;
52 FILE *f, *fout;
53 size_t offset = 0;
54
55 f = fopen(fn, "r");
56 if (f == NULL)
57 err(1, "fopen");
58
59 bname = strrchr(fn, '/');
60 if (bname)
61 bname++;
62 else
63 bname = fn;
64
65 if (asprintf(&fnout, "%s.out", bname) < 0 || fnout == NULL)
66 errx(1, "malloc");
67
68 fout = fopen(fnout, "w");
69 if (fout == NULL)
70 err(1, "fopen: output file");
71
72 while (fgets(buf, sizeof(buf), f) != NULL) {
73 char *ptr, *class, *type, *tag, *length, *data, *foo;
74 int ret, l, c, ty, ta;
75 unsigned char p[6], *pdata;
76 size_t sz;
77
78 line++;
79
80 buf[strcspn(buf, "\r\n")] = '\0';
81 if (buf[0] == '#' || buf[0] == '\0')
82 continue;
83
84 ptr = buf;
85 while (isspace((unsigned char)*ptr))
86 ptr++;
87
88 class = strtok_r(ptr, " \t\n", &foo);
89 if (class == NULL) errx(1, "class missing on line %lu", line);
90 type = strtok_r(NULL, " \t\n", &foo);
91 if (type == NULL) errx(1, "type missing on line %lu", line);
92 tag = strtok_r(NULL, " \t\n", &foo);
93 if (tag == NULL) errx(1, "tag missing on line %lu", line);
94 length = strtok_r(NULL, " \t\n", &foo);
95 if (length == NULL) errx(1, "length missing on line %lu", line);
96 data = strtok_r(NULL, " \t\n", &foo);
97
98 c = der_get_class_num(class);
99 if (c == -1) errx(1, "no valid class on line %lu", line);
100 ty = der_get_type_num(type);
101 if (ty == -1) errx(1, "no valid type on line %lu", line);
102 ta = der_get_tag_num(tag);
103 if (ta == -1)
104 ta = atoi(tag);
105
106 l = atoi(length);
107
108 printf("line: %3lu offset: %3lu class: %d type: %d "
109 "tag: %3d length: %3d %s\n",
110 line, (unsigned long)offset, c, ty, ta, l,
111 data ? "<have data>" : "<no data>");
112
113 ret = der_put_length_and_tag(p + sizeof(p) - 1, sizeof(p),
114 l,
115 c,
116 ty,
117 ta,
118 &sz);
119 if (ret)
120 errx(1, "der_put_length_and_tag: %d", ret);
121
122 if (fwrite(p + sizeof(p) - sz , sz, 1, fout) != 1)
123 err(1, "fwrite length/tag failed");
124 offset += sz;
125
126 if (data) {
127 size_t datalen;
128
129 datalen = strlen(data) / 2;
130 pdata = emalloc(sz);
131
132 if (hex_decode(data, pdata, datalen) != datalen)
133 errx(1, "failed to decode data");
134
135 if (fwrite(pdata, datalen, 1, fout) != 1)
136 err(1, "fwrite data failed");
137 offset += datalen;
138
139 free(pdata);
140 }
141 }
142 printf("line: eof offset: %lu\n", (unsigned long)offset);
143
144 fclose(fout);
145 fclose(f);
146 return 0;
147 }
148
149
150 static int version_flag;
151 static int help_flag;
152 struct getargs args[] = {
153 { "version", 0, arg_flag, &version_flag },
154 { "help", 0, arg_flag, &help_flag }
155 };
156 int num_args = sizeof(args) / sizeof(args[0]);
157
158 static void
usage(int code)159 usage(int code)
160 {
161 arg_printusage(args, num_args, NULL, "parse-file");
162 exit(code);
163 }
164
165 int
main(int argc,char ** argv)166 main(int argc, char **argv)
167 {
168 int optidx = 0;
169
170 setprogname (argv[0]);
171
172 if(getarg(args, num_args, argc, argv, &optidx))
173 usage(1);
174 if(help_flag)
175 usage(0);
176 if(version_flag) {
177 print_version(NULL);
178 exit(0);
179 }
180 argv += optidx;
181 argc -= optidx;
182 if (argc != 1)
183 usage (1);
184
185 return doit (argv[0]);
186 }
187