Annotation of mandoc/manpath.c, Revision 1.34
1.34 ! schwarze 1: /* $Id: manpath.c,v 1.33 2017/02/10 15:45:28 schwarze Exp $ */
1.1 kristaps 2: /*
1.32 schwarze 3: * Copyright (c) 2011, 2014, 2015, 2017 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>
1.28 schwarze 24: #if HAVE_ERR
1.27 schwarze 25: #include <err.h>
1.28 schwarze 26: #endif
1.1 kristaps 27: #include <limits.h>
28: #include <stdio.h>
29: #include <stdlib.h>
30: #include <string.h>
31:
1.13 schwarze 32: #include "mandoc_aux.h"
1.23 schwarze 33: #include "manconf.h"
1.1 kristaps 34:
1.23 schwarze 35: static void manconf_file(struct manconf *, const char *);
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: {
1.8 kristaps 44: char *insert;
1.4 schwarze 45:
1.8 kristaps 46: /* Always prepend -m. */
1.23 schwarze 47: manpath_parseline(&conf->manpath, auxp, 1);
1.10 schwarze 48:
1.8 kristaps 49: /* If -M is given, it overrides everything else. */
50: if (NULL != defp) {
1.23 schwarze 51: manpath_parseline(&conf->manpath, defp, 1);
1.8 kristaps 52: return;
53: }
1.1 kristaps 54:
1.8 kristaps 55: /* MANPATH and man.conf(5) cooperate. */
56: defp = getenv("MANPATH");
57: if (NULL == file)
58: file = MAN_CONF_FILE;
59:
60: /* No MANPATH; use man.conf(5) only. */
61: if (NULL == defp || '\0' == defp[0]) {
1.23 schwarze 62: manconf_file(conf, file);
1.8 kristaps 63: return;
64: }
65:
66: /* Prepend man.conf(5) to MANPATH. */
67: if (':' == defp[0]) {
1.23 schwarze 68: manconf_file(conf, file);
69: manpath_parseline(&conf->manpath, defp, 0);
1.8 kristaps 70: return;
71: }
72:
73: /* Append man.conf(5) to MANPATH. */
1.9 kristaps 74: if (':' == defp[strlen(defp) - 1]) {
1.23 schwarze 75: manpath_parseline(&conf->manpath, defp, 0);
76: manconf_file(conf, file);
1.8 kristaps 77: return;
78: }
79:
80: /* Insert man.conf(5) into MANPATH. */
81: insert = strstr(defp, "::");
82: if (NULL != insert) {
83: *insert++ = '\0';
1.23 schwarze 84: manpath_parseline(&conf->manpath, defp, 0);
85: manconf_file(conf, file);
86: manpath_parseline(&conf->manpath, insert + 1, 0);
1.8 kristaps 87: return;
88: }
89:
90: /* MANPATH overrides man.conf(5) completely. */
1.23 schwarze 91: manpath_parseline(&conf->manpath, defp, 0);
1.1 kristaps 92: }
93:
94: /*
95: * Parse a FULL pathname from a colon-separated list of arrays.
96: */
1.6 kristaps 97: static void
1.18 schwarze 98: manpath_parseline(struct manpaths *dirs, char *path, int complain)
1.1 kristaps 99: {
100: char *dir;
101:
102: if (NULL == path)
103: return;
104:
105: for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
1.18 schwarze 106: manpath_add(dirs, dir, complain);
1.1 kristaps 107: }
108:
109: /*
110: * Add a directory to the array, ignoring bad directories.
111: * Grow the array one-by-one for simplicity's sake.
112: */
113: static void
1.18 schwarze 114: manpath_add(struct manpaths *dirs, const char *dir, int complain)
1.1 kristaps 115: {
116: char buf[PATH_MAX];
1.18 schwarze 117: struct stat sb;
1.1 kristaps 118: char *cp;
1.9 kristaps 119: size_t i;
1.1 kristaps 120:
1.18 schwarze 121: if (NULL == (cp = realpath(dir, buf))) {
1.27 schwarze 122: if (complain)
123: warn("manpath: %s", dir);
1.1 kristaps 124: return;
1.18 schwarze 125: }
1.1 kristaps 126:
127: for (i = 0; i < dirs->sz; i++)
128: if (0 == strcmp(dirs->paths[i], dir))
129: return;
130:
1.18 schwarze 131: if (stat(cp, &sb) == -1) {
1.27 schwarze 132: if (complain)
133: warn("manpath: %s", dir);
1.18 schwarze 134: return;
135: }
136:
1.15 schwarze 137: dirs->paths = mandoc_reallocarray(dirs->paths,
138: dirs->sz + 1, sizeof(char *));
1.1 kristaps 139:
140: dirs->paths[dirs->sz++] = mandoc_strdup(cp);
1.2 kristaps 141: }
142:
143: void
1.23 schwarze 144: manconf_free(struct manconf *conf)
1.2 kristaps 145: {
1.9 kristaps 146: size_t i;
1.2 kristaps 147:
1.23 schwarze 148: for (i = 0; i < conf->manpath.sz; i++)
149: free(conf->manpath.paths[i]);
1.2 kristaps 150:
1.23 schwarze 151: free(conf->manpath.paths);
152: free(conf->output.includes);
153: free(conf->output.man);
154: free(conf->output.paper);
155: free(conf->output.style);
1.2 kristaps 156: }
157:
1.23 schwarze 158: static void
159: manconf_file(struct manconf *conf, const char *file)
1.2 kristaps 160: {
1.23 schwarze 161: const char *const toks[] = { "manpath", "output", "_whatdb" };
1.25 schwarze 162: char manpath_default[] = MANPATH_DEFAULT;
1.22 schwarze 163:
1.2 kristaps 164: FILE *stream;
1.29 schwarze 165: char *line, *cp, *ep;
166: size_t linesz, tok, toklen;
167: ssize_t linelen;
1.1 kristaps 168:
1.22 schwarze 169: if ((stream = fopen(file, "r")) == NULL)
1.25 schwarze 170: goto out;
1.1 kristaps 171:
1.29 schwarze 172: line = NULL;
173: linesz = 0;
174:
175: while ((linelen = getline(&line, &linesz, stream)) != -1) {
176: cp = line;
1.30 schwarze 177: ep = cp + linelen - 1;
178: while (ep > cp && isspace((unsigned char)*ep))
179: *ep-- = '\0';
1.22 schwarze 180: while (isspace((unsigned char)*cp))
181: cp++;
1.30 schwarze 182: if (cp == ep || *cp == '#')
1.1 kristaps 183: continue;
1.22 schwarze 184:
185: for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
1.29 schwarze 186: toklen = strlen(toks[tok]);
187: if (cp + toklen < ep &&
188: isspace((unsigned char)cp[toklen]) &&
189: strncmp(cp, toks[tok], toklen) == 0) {
190: cp += toklen;
1.22 schwarze 191: while (isspace((unsigned char)*cp))
192: cp++;
193: break;
194: }
195: }
196:
197: switch (tok) {
1.23 schwarze 198: case 2: /* _whatdb */
1.22 schwarze 199: while (ep > cp && ep[-1] != '/')
200: ep--;
201: if (ep == cp)
202: continue;
203: *ep = '\0';
204: /* FALLTHROUGH */
205: case 0: /* manpath */
1.23 schwarze 206: manpath_add(&conf->manpath, cp, 0);
1.25 schwarze 207: *manpath_default = '\0';
1.23 schwarze 208: break;
209: case 1: /* output */
1.32 schwarze 210: manconf_output(&conf->output, cp, 1);
1.22 schwarze 211: break;
212: default:
213: break;
214: }
1.1 kristaps 215: }
1.29 schwarze 216: free(line);
1.25 schwarze 217: fclose(stream);
1.1 kristaps 218:
1.25 schwarze 219: out:
220: if (*manpath_default != '\0')
221: manpath_parseline(&conf->manpath, manpath_default, 0);
1.23 schwarze 222: }
223:
1.32 schwarze 224: int
225: manconf_output(struct manoutput *conf, const char *cp, int fromfile)
1.23 schwarze 226: {
227: const char *const toks[] = {
228: "includes", "man", "paper", "style",
1.33 schwarze 229: "indent", "width", "fragment", "mdoc", "noval"
1.23 schwarze 230: };
231:
1.32 schwarze 232: const char *errstr;
233: char *oldval;
234: size_t len, tok;
1.23 schwarze 235:
236: for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
237: len = strlen(toks[tok]);
238: if ( ! strncmp(cp, toks[tok], len) &&
239: strchr(" = ", cp[len]) != NULL) {
240: cp += len;
241: if (*cp == '=')
242: cp++;
243: while (isspace((unsigned char)*cp))
244: cp++;
245: break;
246: }
247: }
248:
1.32 schwarze 249: if (tok < 6 && *cp == '\0') {
250: warnx("-O %s=?: Missing argument value", toks[tok]);
251: return -1;
252: }
253: if ((tok == 6 || tok == 7) && *cp != '\0') {
254: warnx("-O %s: Does not take a value: %s", toks[tok], cp);
255: return -1;
256: }
1.23 schwarze 257:
258: switch (tok) {
259: case 0:
1.32 schwarze 260: if (conf->includes != NULL) {
261: oldval = mandoc_strdup(conf->includes);
262: break;
263: }
264: conf->includes = mandoc_strdup(cp);
265: return 0;
1.23 schwarze 266: case 1:
1.32 schwarze 267: if (conf->man != NULL) {
268: oldval = mandoc_strdup(conf->man);
269: break;
270: }
271: conf->man = mandoc_strdup(cp);
272: return 0;
1.23 schwarze 273: case 2:
1.32 schwarze 274: if (conf->paper != NULL) {
275: oldval = mandoc_strdup(conf->paper);
276: break;
277: }
278: conf->paper = mandoc_strdup(cp);
279: return 0;
1.23 schwarze 280: case 3:
1.32 schwarze 281: if (conf->style != NULL) {
282: oldval = mandoc_strdup(conf->style);
283: break;
284: }
285: conf->style = mandoc_strdup(cp);
286: return 0;
1.23 schwarze 287: case 4:
1.32 schwarze 288: if (conf->indent) {
289: mandoc_asprintf(&oldval, "%zu", conf->indent);
290: break;
291: }
292: conf->indent = strtonum(cp, 0, 1000, &errstr);
293: if (errstr == NULL)
294: return 0;
295: warnx("-O indent=%s is %s", cp, errstr);
296: return -1;
1.23 schwarze 297: case 5:
1.32 schwarze 298: if (conf->width) {
299: mandoc_asprintf(&oldval, "%zu", conf->width);
300: break;
301: }
1.34 ! schwarze 302: conf->width = strtonum(cp, 1, 1000, &errstr);
1.32 schwarze 303: if (errstr == NULL)
304: return 0;
305: warnx("-O width=%s is %s", cp, errstr);
306: return -1;
1.23 schwarze 307: case 6:
308: conf->fragment = 1;
1.32 schwarze 309: return 0;
1.23 schwarze 310: case 7:
311: conf->mdoc = 1;
1.33 schwarze 312: return 0;
313: case 8:
314: conf->noval = 1;
1.32 schwarze 315: return 0;
1.23 schwarze 316: default:
1.32 schwarze 317: if (fromfile)
318: warnx("-O %s: Bad argument", cp);
319: return -1;
1.23 schwarze 320: }
1.32 schwarze 321: if (fromfile == 0)
322: warnx("-O %s=%s: Option already set to %s",
323: toks[tok], cp, oldval);
324: free(oldval);
325: return -1;
1.1 kristaps 326: }
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