1 /* $Id: manpath.c,v 1.43 2020/08/27 14:59:47 schwarze Exp $ */
3 * Copyright (c) 2011,2014,2015,2017-2019 Ingo Schwarze <schwarze@openbsd.org>
4 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <sys/types.h>
30 #include "mandoc_aux.h"
34 static void manconf_file(struct manconf *, const char *);
35 static void manpath_add(struct manpaths *, const char *, char);
36 static void manpath_parseline(struct manpaths *, char *, char);
40 manconf_parse(struct manconf *conf, const char *file,
41 char *defp, char *auxp)
45 /* Always prepend -m. */
46 manpath_parseline(&conf->manpath, auxp, 'm');
48 /* If -M is given, it overrides everything else. */
50 manpath_parseline(&conf->manpath, defp, 'M');
54 /* MANPATH and man.conf(5) cooperate. */
55 defp = getenv("MANPATH");
59 /* No MANPATH; use man.conf(5) only. */
60 if (NULL == defp || '\0' == defp[0]) {
61 manconf_file(conf, file);
65 /* Prepend man.conf(5) to MANPATH. */
67 manconf_file(conf, file);
68 manpath_parseline(&conf->manpath, defp, '\0');
72 /* Append man.conf(5) to MANPATH. */
73 if (':' == defp[strlen(defp) - 1]) {
74 manpath_parseline(&conf->manpath, defp, '\0');
75 manconf_file(conf, file);
79 /* Insert man.conf(5) into MANPATH. */
80 insert = strstr(defp, "::");
83 manpath_parseline(&conf->manpath, defp, '\0');
84 manconf_file(conf, file);
85 manpath_parseline(&conf->manpath, insert + 1, '\0');
89 /* MANPATH overrides man.conf(5) completely. */
90 manpath_parseline(&conf->manpath, defp, '\0');
94 manpath_base(struct manpaths *dirs)
96 char path_base[] = MANPATH_BASE;
97 manpath_parseline(dirs, path_base, '\0');
101 * Parse a FULL pathname from a colon-separated list of arrays.
104 manpath_parseline(struct manpaths *dirs, char *path, char option)
111 for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
112 manpath_add(dirs, dir, option);
116 * Add a directory to the array, ignoring bad directories.
117 * Grow the array one-by-one for simplicity's sake.
120 manpath_add(struct manpaths *dirs, const char *dir, char option)
127 if ((cp = realpath(dir, buf)) == NULL)
130 for (i = 0; i < dirs->sz; i++)
131 if (strcmp(dirs->paths[i], dir) == 0)
134 if (stat(cp, &sb) == -1)
137 dirs->paths = mandoc_reallocarray(dirs->paths,
138 dirs->sz + 1, sizeof(*dirs->paths));
139 dirs->paths[dirs->sz++] = mandoc_strdup(cp);
144 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
145 "-%c %s: %s", option, dir, strerror(errno));
149 manconf_free(struct manconf *conf)
153 for (i = 0; i < conf->manpath.sz; i++)
154 free(conf->manpath.paths[i]);
156 free(conf->manpath.paths);
157 free(conf->output.includes);
158 free(conf->output.man);
159 free(conf->output.paper);
160 free(conf->output.style);
164 manconf_file(struct manconf *conf, const char *file)
166 const char *const toks[] = { "manpath", "output" };
167 char manpath_default[] = MANPATH_DEFAULT;
170 char *line, *cp, *ep;
171 size_t linesz, tok, toklen;
174 if ((stream = fopen(file, "r")) == NULL)
180 while ((linelen = getline(&line, &linesz, stream)) != -1) {
182 ep = cp + linelen - 1;
183 while (ep > cp && isspace((unsigned char)*ep))
185 while (isspace((unsigned char)*cp))
187 if (cp == ep || *cp == '#')
190 for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
191 toklen = strlen(toks[tok]);
192 if (cp + toklen < ep &&
193 isspace((unsigned char)cp[toklen]) &&
194 strncmp(cp, toks[tok], toklen) == 0) {
196 while (isspace((unsigned char)*cp))
203 case 0: /* manpath */
204 manpath_add(&conf->manpath, cp, '\0');
205 *manpath_default = '\0';
208 manconf_output(&conf->output, cp, 1);
218 if (*manpath_default != '\0')
219 manpath_parseline(&conf->manpath, manpath_default, '\0');
223 manconf_output(struct manoutput *conf, const char *cp, int fromfile)
225 const char *const toks[] = {
226 /* Tokens requiring an argument. */
227 "includes", "man", "paper", "style", "indent", "width",
228 "outfilename", "tagfilename",
229 /* Token taking an optional argument. */
231 /* Tokens not taking arguments. */
232 "fragment", "mdoc", "noval", "toc"
234 const size_t ntoks = sizeof(toks) / sizeof(toks[0]);
240 for (tok = 0; tok < ntoks; tok++) {
241 len = strlen(toks[tok]);
242 if (strncmp(cp, toks[tok], len) == 0 &&
243 strchr(" = ", cp[len]) != NULL) {
247 while (isspace((unsigned char)*cp))
253 if (tok < 8 && *cp == '\0') {
254 mandoc_msg(MANDOCERR_BADVAL_MISS, 0, 0, "-O %s=?", toks[tok]);
257 if (tok > 8 && tok < ntoks && *cp != '\0') {
258 mandoc_msg(MANDOCERR_BADVAL, 0, 0, "-O %s=%s", toks[tok], cp);
264 if (conf->includes != NULL) {
265 oldval = mandoc_strdup(conf->includes);
268 conf->includes = mandoc_strdup(cp);
271 if (conf->man != NULL) {
272 oldval = mandoc_strdup(conf->man);
275 conf->man = mandoc_strdup(cp);
278 if (conf->paper != NULL) {
279 oldval = mandoc_strdup(conf->paper);
282 conf->paper = mandoc_strdup(cp);
285 if (conf->style != NULL) {
286 oldval = mandoc_strdup(conf->style);
289 conf->style = mandoc_strdup(cp);
293 mandoc_asprintf(&oldval, "%zu", conf->indent);
296 conf->indent = strtonum(cp, 0, 1000, &errstr);
299 mandoc_msg(MANDOCERR_BADVAL_BAD, 0, 0,
300 "-O indent=%s is %s", cp, errstr);
304 mandoc_asprintf(&oldval, "%zu", conf->width);
307 conf->width = strtonum(cp, 1, 1000, &errstr);
310 mandoc_msg(MANDOCERR_BADVAL_BAD, 0, 0,
311 "-O width=%s is %s", cp, errstr);
314 if (conf->outfilename != NULL) {
315 oldval = mandoc_strdup(conf->outfilename);
318 conf->outfilename = mandoc_strdup(cp);
321 if (conf->tagfilename != NULL) {
322 oldval = mandoc_strdup(conf->tagfilename);
325 conf->tagfilename = mandoc_strdup(cp);
328 * If the index of the following token changes,
329 * do not forget to adjust the range check above the switch.
332 if (conf->tag != NULL) {
333 oldval = mandoc_strdup(conf->tag);
336 conf->tag = mandoc_strdup(cp);
351 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-O %s", cp);
358 mandoc_msg(MANDOCERR_BADVAL_DUPE, 0, 0,
359 "-O %s=%s: already set to %s", toks[tok], cp, oldval);