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1.1 schwarze 1: /*-
2: * Copyright (c) 2014 Baptiste Daroussin <bapt@FreeBSD.org>
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: * in this position and unchanged.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18: * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #include <sys/cdefs.h>
28: __FBSDID("$FreeBSD$");
29:
30: #include <sys/param.h>
31:
32: #define _WITH_GETLINE
33: #include <stdio.h>
34: #include <unistd.h>
35: #include <stdlib.h>
36: #include <stdbool.h>
37: #include <string.h>
38: #include <stringlist.h>
39: #include <err.h>
40: #include <ctype.h>
41:
42: #define C_OPTION 0x1
43:
44: static StringList *includes;
45:
46: static void
47: usage(void)
48: {
49:
50: fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n");
51:
52: exit(EXIT_FAILURE);
53: }
54:
55: static FILE *
56: soelim_fopen(const char *name)
57: {
58: FILE *f;
59: char path[MAXPATHLEN];
60: size_t i;
61:
62: if (strcmp(name, "-") == 0)
63: return (stdin);
64:
65: if ((f = fopen(name, "r")) != NULL)
66: return (f);
67:
68: if (*name == '/') {
69: warn("can't open '%s'", name);
70: return (NULL);
71: }
72:
73: for (i = 0; i < includes->sl_cur; i++) {
74: snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i],
75: name);
76: if ((f = fopen(path, "r")) != NULL)
77: return (f);
78: }
79:
80: warn("can't open '%s'", name);
81:
82: return (f);
83: }
84:
85: static int
86: soelim_file(FILE *f, int flag)
87: {
88: char *line = NULL;
89: char *walk, *cp;
90: size_t linecap = 0;
91: ssize_t linelen;
92:
93: if (f == NULL)
94: return (1);
95:
96: while ((linelen = getline(&line, &linecap, f)) > 0) {
97: if (strncmp(line, ".so", 3) != 0) {
98: printf("%s", line);
99: continue;
100: }
101:
102: walk = line + 3;
103: if (!isspace(*walk) && ((flag & C_OPTION) == 0)) {
104: printf("%s", line);
105: continue;
106: }
107:
108: while (isspace(*walk))
109: walk++;
110:
111: cp = walk;
112: while (*cp != '\0' && !isspace(*cp))
113: cp++;
114: *cp = 0;
115: if (cp < line + linelen)
116: cp++;
117:
118: if (*walk == '\0') {
119: printf("%s", line);
120: continue;
121: }
122: if (soelim_file(soelim_fopen(walk), flag) == 1) {
123: free(line);
124: return (1);
125: }
126: if (*cp != '\0')
127: printf("%s", cp);
128: }
129:
130: free(line);
131: fclose(f);
132:
133: return (0);
134: }
135:
136: int
137: main(int argc, char **argv)
138: {
139: int ch, i;
140: int ret = 0;
141: int flags = 0;
142:
143: includes = sl_init();
144: if (includes == NULL)
145: err(EXIT_FAILURE, "sl_init()");
146:
147: while ((ch = getopt(argc, argv, "CrtvI:")) != -1) {
148: switch (ch) {
149: case 'C':
150: flags |= C_OPTION;
151: break;
152: case 'r':
153: case 'v':
154: case 't':
155: /* stub compatibility with groff's soelim */
156: break;
157: case 'I':
158: sl_add(includes, optarg);
159: break;
160: default:
161: sl_free(includes, 0);
162: usage();
163: }
164: }
165:
166: argc -= optind;
167: argv += optind;
168:
169: if (argc == 0)
170: ret = soelim_file(stdin, flags);
171:
172: for (i = 0; i < argc; i++)
173: ret = soelim_file(soelim_fopen(argv[i]), flags);
174:
175: sl_free(includes, 0);
176:
177: return (ret);
178: }