Annotation of mandoc/manpath.c, Revision 1.27
1.27 ! schwarze 1: /* $Id: manpath.c,v 1.26 2015/06/10 19:26:13 schwarze Exp $ */
1.1 kristaps 2: /*
1.20 schwarze 3: * Copyright (c) 2011, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 4: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
5: *
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.
9: *
1.22 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.22 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 kristaps 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.
17: */
18: #include "config.h"
1.16 schwarze 19:
20: #include <sys/types.h>
1.18 schwarze 21: #include <sys/stat.h>
1.1 kristaps 22:
23: #include <ctype.h>
1.27 ! schwarze 24: #include <err.h>
1.1 kristaps 25: #include <limits.h>
26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.13 schwarze 30: #include "mandoc_aux.h"
1.23 schwarze 31: #include "manconf.h"
1.1 kristaps 32:
1.26 schwarze 33: #if !HAVE_MANPATH
1.23 schwarze 34: static void manconf_file(struct manconf *, const char *);
1.26 schwarze 35: #endif
1.18 schwarze 36: static void manpath_add(struct manpaths *, const char *, int);
37: static void manpath_parseline(struct manpaths *, char *, int);
1.1 kristaps 38:
1.23 schwarze 39:
1.1 kristaps 40: void
1.23 schwarze 41: manconf_parse(struct manconf *conf, const char *file,
1.5 schwarze 42: char *defp, char *auxp)
1.1 kristaps 43: {
1.17 schwarze 44: #if HAVE_MANPATH
1.11 schwarze 45: char cmd[(PATH_MAX * 3) + 20];
1.6 kristaps 46: FILE *stream;
47: char *buf;
48: size_t sz, bsz;
49:
50: strlcpy(cmd, "manpath", sizeof(cmd));
51: if (file) {
52: strlcat(cmd, " -C ", sizeof(cmd));
53: strlcat(cmd, file, sizeof(cmd));
54: }
55: if (auxp) {
56: strlcat(cmd, " -m ", sizeof(cmd));
57: strlcat(cmd, auxp, sizeof(cmd));
58: }
59: if (defp) {
60: strlcat(cmd, " -M ", sizeof(cmd));
61: strlcat(cmd, defp, sizeof(cmd));
62: }
63:
64: /* Open manpath(1). Ignore errors. */
65:
66: stream = popen(cmd, "r");
67: if (NULL == stream)
68: return;
69:
70: buf = NULL;
71: bsz = 0;
72:
73: /* Read in as much output as we can. */
74:
75: do {
76: buf = mandoc_realloc(buf, bsz + 1024);
1.9 kristaps 77: sz = fread(buf + bsz, 1, 1024, stream);
1.6 kristaps 78: bsz += sz;
79: } while (sz > 0);
80:
81: if ( ! ferror(stream) && feof(stream) &&
82: bsz && '\n' == buf[bsz - 1]) {
83: buf[bsz - 1] = '\0';
1.24 schwarze 84: manpath_parseline(&conf->manpath, buf, 1);
1.6 kristaps 85: }
1.1 kristaps 86:
1.6 kristaps 87: free(buf);
88: pclose(stream);
89: #else
1.8 kristaps 90: char *insert;
1.4 schwarze 91:
1.8 kristaps 92: /* Always prepend -m. */
1.23 schwarze 93: manpath_parseline(&conf->manpath, auxp, 1);
1.10 schwarze 94:
1.8 kristaps 95: /* If -M is given, it overrides everything else. */
96: if (NULL != defp) {
1.23 schwarze 97: manpath_parseline(&conf->manpath, defp, 1);
1.8 kristaps 98: return;
99: }
1.1 kristaps 100:
1.8 kristaps 101: /* MANPATH and man.conf(5) cooperate. */
102: defp = getenv("MANPATH");
103: if (NULL == file)
104: file = MAN_CONF_FILE;
105:
106: /* No MANPATH; use man.conf(5) only. */
107: if (NULL == defp || '\0' == defp[0]) {
1.23 schwarze 108: manconf_file(conf, file);
1.8 kristaps 109: return;
110: }
111:
112: /* Prepend man.conf(5) to MANPATH. */
113: if (':' == defp[0]) {
1.23 schwarze 114: manconf_file(conf, file);
115: manpath_parseline(&conf->manpath, defp, 0);
1.8 kristaps 116: return;
117: }
118:
119: /* Append man.conf(5) to MANPATH. */
1.9 kristaps 120: if (':' == defp[strlen(defp) - 1]) {
1.23 schwarze 121: manpath_parseline(&conf->manpath, defp, 0);
122: manconf_file(conf, file);
1.8 kristaps 123: return;
124: }
125:
126: /* Insert man.conf(5) into MANPATH. */
127: insert = strstr(defp, "::");
128: if (NULL != insert) {
129: *insert++ = '\0';
1.23 schwarze 130: manpath_parseline(&conf->manpath, defp, 0);
131: manconf_file(conf, file);
132: manpath_parseline(&conf->manpath, insert + 1, 0);
1.8 kristaps 133: return;
134: }
135:
136: /* MANPATH overrides man.conf(5) completely. */
1.23 schwarze 137: manpath_parseline(&conf->manpath, defp, 0);
1.6 kristaps 138: #endif
1.1 kristaps 139: }
140:
141: /*
142: * Parse a FULL pathname from a colon-separated list of arrays.
143: */
1.6 kristaps 144: static void
1.18 schwarze 145: manpath_parseline(struct manpaths *dirs, char *path, int complain)
1.1 kristaps 146: {
147: char *dir;
148:
149: if (NULL == path)
150: return;
151:
152: for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
1.18 schwarze 153: manpath_add(dirs, dir, complain);
1.1 kristaps 154: }
155:
156: /*
157: * Add a directory to the array, ignoring bad directories.
158: * Grow the array one-by-one for simplicity's sake.
159: */
160: static void
1.18 schwarze 161: manpath_add(struct manpaths *dirs, const char *dir, int complain)
1.1 kristaps 162: {
163: char buf[PATH_MAX];
1.18 schwarze 164: struct stat sb;
1.1 kristaps 165: char *cp;
1.9 kristaps 166: size_t i;
1.1 kristaps 167:
1.18 schwarze 168: if (NULL == (cp = realpath(dir, buf))) {
1.27 ! schwarze 169: if (complain)
! 170: warn("manpath: %s", dir);
1.1 kristaps 171: return;
1.18 schwarze 172: }
1.1 kristaps 173:
174: for (i = 0; i < dirs->sz; i++)
175: if (0 == strcmp(dirs->paths[i], dir))
176: return;
177:
1.18 schwarze 178: if (stat(cp, &sb) == -1) {
1.27 ! schwarze 179: if (complain)
! 180: warn("manpath: %s", dir);
1.18 schwarze 181: return;
182: }
183:
1.15 schwarze 184: dirs->paths = mandoc_reallocarray(dirs->paths,
185: dirs->sz + 1, sizeof(char *));
1.1 kristaps 186:
187: dirs->paths[dirs->sz++] = mandoc_strdup(cp);
1.2 kristaps 188: }
189:
190: void
1.23 schwarze 191: manconf_free(struct manconf *conf)
1.2 kristaps 192: {
1.9 kristaps 193: size_t i;
1.2 kristaps 194:
1.23 schwarze 195: for (i = 0; i < conf->manpath.sz; i++)
196: free(conf->manpath.paths[i]);
1.2 kristaps 197:
1.23 schwarze 198: free(conf->manpath.paths);
199: free(conf->output.includes);
200: free(conf->output.man);
201: free(conf->output.paper);
202: free(conf->output.style);
1.2 kristaps 203: }
204:
1.26 schwarze 205: #if !HAVE_MANPATH
1.23 schwarze 206: static void
207: manconf_file(struct manconf *conf, const char *file)
1.2 kristaps 208: {
1.23 schwarze 209: const char *const toks[] = { "manpath", "output", "_whatdb" };
1.25 schwarze 210: char manpath_default[] = MANPATH_DEFAULT;
1.22 schwarze 211:
1.2 kristaps 212: FILE *stream;
1.22 schwarze 213: char *cp, *ep;
214: size_t len, tok;
1.1 kristaps 215:
1.22 schwarze 216: if ((stream = fopen(file, "r")) == NULL)
1.25 schwarze 217: goto out;
1.1 kristaps 218:
1.22 schwarze 219: while ((cp = fgetln(stream, &len)) != NULL) {
220: ep = cp + len;
221: if (ep[-1] != '\n')
1.1 kristaps 222: break;
1.22 schwarze 223: *--ep = '\0';
224: while (isspace((unsigned char)*cp))
225: cp++;
226: if (*cp == '#')
1.1 kristaps 227: continue;
1.22 schwarze 228:
229: for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
230: len = strlen(toks[tok]);
231: if (cp + len < ep &&
232: isspace((unsigned char)cp[len]) &&
233: !strncmp(cp, toks[tok], len)) {
234: cp += len;
235: while (isspace((unsigned char)*cp))
236: cp++;
237: break;
238: }
239: }
240:
241: switch (tok) {
1.23 schwarze 242: case 2: /* _whatdb */
1.22 schwarze 243: while (ep > cp && ep[-1] != '/')
244: ep--;
245: if (ep == cp)
246: continue;
247: *ep = '\0';
248: /* FALLTHROUGH */
249: case 0: /* manpath */
1.23 schwarze 250: manpath_add(&conf->manpath, cp, 0);
1.25 schwarze 251: *manpath_default = '\0';
1.23 schwarze 252: break;
253: case 1: /* output */
254: manconf_output(&conf->output, cp);
1.22 schwarze 255: break;
256: default:
257: break;
258: }
1.1 kristaps 259: }
1.25 schwarze 260: fclose(stream);
1.1 kristaps 261:
1.25 schwarze 262: out:
263: if (*manpath_default != '\0')
264: manpath_parseline(&conf->manpath, manpath_default, 0);
1.23 schwarze 265: }
1.26 schwarze 266: #endif
1.23 schwarze 267:
268: void
269: manconf_output(struct manoutput *conf, const char *cp)
270: {
271: const char *const toks[] = {
272: "includes", "man", "paper", "style",
273: "indent", "width", "fragment", "mdoc"
274: };
275:
276: size_t len, tok;
277:
278: for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
279: len = strlen(toks[tok]);
280: if ( ! strncmp(cp, toks[tok], len) &&
281: strchr(" = ", cp[len]) != NULL) {
282: cp += len;
283: if (*cp == '=')
284: cp++;
285: while (isspace((unsigned char)*cp))
286: cp++;
287: break;
288: }
289: }
290:
291: if (tok < 6 && *cp == '\0')
292: return;
293:
294: switch (tok) {
295: case 0:
296: if (conf->includes == NULL)
297: conf->includes = mandoc_strdup(cp);
298: break;
299: case 1:
300: if (conf->man == NULL)
301: conf->man = mandoc_strdup(cp);
302: break;
303: case 2:
304: if (conf->paper == NULL)
305: conf->paper = mandoc_strdup(cp);
306: break;
307: case 3:
308: if (conf->style == NULL)
309: conf->style = mandoc_strdup(cp);
310: break;
311: case 4:
312: if (conf->indent == 0)
313: conf->indent = strtonum(cp, 0, 1000, NULL);
314: break;
315: case 5:
316: if (conf->width == 0)
317: conf->width = strtonum(cp, 58, 1000, NULL);
318: break;
319: case 6:
320: conf->fragment = 1;
321: break;
322: case 7:
323: conf->mdoc = 1;
324: break;
325: default:
326: break;
327: }
1.1 kristaps 328: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to manpath.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc