=================================================================== RCS file: /cvs/mandoc/manpath.c,v retrieving revision 1.3 retrieving revision 1.31 diff -u -p -r1.3 -r1.31 --- mandoc/manpath.c 2011/11/24 10:44:56 1.3 +++ mandoc/manpath.c 2016/07/19 22:40:33 1.31 @@ -1,59 +1,101 @@ -/* $Id: manpath.c,v 1.3 2011/11/24 10:44:56 kristaps Exp $ */ +/* $Id: manpath.c,v 1.31 2016/07/19 22:40:33 schwarze Exp $ */ /* - * Copyright (c) 2011 Ingo Schwarze + * Copyright (c) 2011, 2014, 2015 Ingo Schwarze * Copyright (c) 2011 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#ifdef HAVE_CONFIG_H #include "config.h" -#endif -#include +#include +#include + #include +#if HAVE_ERR +#include +#endif #include #include #include #include -#include "mandoc.h" -#include "manpath.h" +#include "mandoc_aux.h" +#include "manconf.h" -#define MAN_CONF_FILE "/etc/man.conf" -#define MAN_CONF_KEY "_whatdb" +static void manconf_file(struct manconf *, const char *); +static void manpath_add(struct manpaths *, const char *, int); +static void manpath_parseline(struct manpaths *, char *, int); -static void manpath_add(struct manpaths *, const char *); void -manpath_parse(struct manpaths *dirs, char *defp, char *auxp) +manconf_parse(struct manconf *conf, const char *file, + char *defp, char *auxp) { + char *insert; - if (NULL != getenv("MANPATH")) - defp = getenv("MANPATH"); + /* Always prepend -m. */ + manpath_parseline(&conf->manpath, auxp, 1); - if (NULL == defp) - manpath_parseconf(dirs); - else - manpath_parseline(dirs, defp); + /* If -M is given, it overrides everything else. */ + if (NULL != defp) { + manpath_parseline(&conf->manpath, defp, 1); + return; + } - manpath_parseline(dirs, auxp); + /* MANPATH and man.conf(5) cooperate. */ + defp = getenv("MANPATH"); + if (NULL == file) + file = MAN_CONF_FILE; + + /* No MANPATH; use man.conf(5) only. */ + if (NULL == defp || '\0' == defp[0]) { + manconf_file(conf, file); + return; + } + + /* Prepend man.conf(5) to MANPATH. */ + if (':' == defp[0]) { + manconf_file(conf, file); + manpath_parseline(&conf->manpath, defp, 0); + return; + } + + /* Append man.conf(5) to MANPATH. */ + if (':' == defp[strlen(defp) - 1]) { + manpath_parseline(&conf->manpath, defp, 0); + manconf_file(conf, file); + return; + } + + /* Insert man.conf(5) into MANPATH. */ + insert = strstr(defp, "::"); + if (NULL != insert) { + *insert++ = '\0'; + manpath_parseline(&conf->manpath, defp, 0); + manconf_file(conf, file); + manpath_parseline(&conf->manpath, insert + 1, 0); + return; + } + + /* MANPATH overrides man.conf(5) completely. */ + manpath_parseline(&conf->manpath, defp, 0); } /* * Parse a FULL pathname from a colon-separated list of arrays. */ -void -manpath_parseline(struct manpaths *dirs, char *path) +static void +manpath_parseline(struct manpaths *dirs, char *path, int complain) { char *dir; @@ -61,7 +103,7 @@ manpath_parseline(struct manpaths *dirs, char *path) return; for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":")) - manpath_add(dirs, dir); + manpath_add(dirs, dir, complain); } /* @@ -69,106 +111,174 @@ manpath_parseline(struct manpaths *dirs, char *path) * Grow the array one-by-one for simplicity's sake. */ static void -manpath_add(struct manpaths *dirs, const char *dir) +manpath_add(struct manpaths *dirs, const char *dir, int complain) { char buf[PATH_MAX]; + struct stat sb; char *cp; - int i; + size_t i; - if (NULL == (cp = realpath(dir, buf))) + if (NULL == (cp = realpath(dir, buf))) { + if (complain) + warn("manpath: %s", dir); return; + } for (i = 0; i < dirs->sz; i++) if (0 == strcmp(dirs->paths[i], dir)) return; - dirs->paths = mandoc_realloc - (dirs->paths, - ((size_t)dirs->sz + 1) * sizeof(char *)); + if (stat(cp, &sb) == -1) { + if (complain) + warn("manpath: %s", dir); + return; + } + dirs->paths = mandoc_reallocarray(dirs->paths, + dirs->sz + 1, sizeof(char *)); + dirs->paths[dirs->sz++] = mandoc_strdup(cp); } void -manpath_parseconf(struct manpaths *dirs) +manconf_free(struct manconf *conf) { -#ifdef USE_MANPATH - FILE *stream; - char *buf; - size_t sz, bsz; + size_t i; - /* Open manpath(1). Ignore errors. */ + for (i = 0; i < conf->manpath.sz; i++) + free(conf->manpath.paths[i]); - stream = popen("manpath", "r"); - if (NULL == stream) - return; + free(conf->manpath.paths); + free(conf->output.includes); + free(conf->output.man); + free(conf->output.paper); + free(conf->output.style); +} - buf = NULL; - bsz = 0; +static void +manconf_file(struct manconf *conf, const char *file) +{ + const char *const toks[] = { "manpath", "output", "_whatdb" }; + char manpath_default[] = MANPATH_DEFAULT; - /* Read in as much output as we can. */ + FILE *stream; + char *line, *cp, *ep; + size_t linesz, tok, toklen; + ssize_t linelen; - do { - buf = mandoc_realloc(buf, bsz + 1024); - sz = fread(buf + (int)bsz, 1, 1024, stream); - bsz += sz; - } while (sz > 0); + if ((stream = fopen(file, "r")) == NULL) + goto out; - if ( ! ferror(stream) && feof(stream) && - bsz && '\n' == buf[bsz - 1]) { - buf[bsz - 1] = '\0'; - manpath_parseline(dirs, buf); - } + line = NULL; + linesz = 0; - free(buf); - pclose(stream); -#else - manpath_manconf(MAN_CONF_FILE, dirs); -#endif -} + while ((linelen = getline(&line, &linesz, stream)) != -1) { + cp = line; + ep = cp + linelen - 1; + while (ep > cp && isspace((unsigned char)*ep)) + *ep-- = '\0'; + while (isspace((unsigned char)*cp)) + cp++; + if (cp == ep || *cp == '#') + continue; -void -manpath_free(struct manpaths *p) -{ - int i; + for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) { + toklen = strlen(toks[tok]); + if (cp + toklen < ep && + isspace((unsigned char)cp[toklen]) && + strncmp(cp, toks[tok], toklen) == 0) { + cp += toklen; + while (isspace((unsigned char)*cp)) + cp++; + break; + } + } - for (i = 0; i < p->sz; i++) - free(p->paths[i]); + switch (tok) { + case 2: /* _whatdb */ + while (ep > cp && ep[-1] != '/') + ep--; + if (ep == cp) + continue; + *ep = '\0'; + /* FALLTHROUGH */ + case 0: /* manpath */ + manpath_add(&conf->manpath, cp, 0); + *manpath_default = '\0'; + break; + case 1: /* output */ + manconf_output(&conf->output, cp); + break; + default: + break; + } + } + free(line); + fclose(stream); - free(p->paths); +out: + if (*manpath_default != '\0') + manpath_parseline(&conf->manpath, manpath_default, 0); } void -manpath_manconf(const char *file, struct manpaths *dirs) +manconf_output(struct manoutput *conf, const char *cp) { - FILE *stream; - char *p, *q; - size_t len, keysz; + const char *const toks[] = { + "includes", "man", "paper", "style", + "indent", "width", "fragment", "mdoc" + }; - keysz = strlen(MAN_CONF_KEY); - assert(keysz > 0); + size_t len, tok; - if (NULL == (stream = fopen(file, "r"))) - return; - - while (NULL != (p = fgetln(stream, &len))) { - if (0 == len || '\n' != p[--len]) + for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) { + len = strlen(toks[tok]); + if ( ! strncmp(cp, toks[tok], len) && + strchr(" = ", cp[len]) != NULL) { + cp += len; + if (*cp == '=') + cp++; + while (isspace((unsigned char)*cp)) + cp++; break; - p[len] = '\0'; - while (isspace((unsigned char)*p)) - p++; - if (strncmp(MAN_CONF_KEY, p, keysz)) - continue; - p += keysz; - while (isspace(*p)) - p++; - if ('\0' == *p) - continue; - if (NULL == (q = strrchr(p, '/'))) - continue; - *q = '\0'; - manpath_add(dirs, p); + } } - fclose(stream); + if (tok < 6 && *cp == '\0') + return; + + switch (tok) { + case 0: + if (conf->includes == NULL) + conf->includes = mandoc_strdup(cp); + break; + case 1: + if (conf->man == NULL) + conf->man = mandoc_strdup(cp); + break; + case 2: + if (conf->paper == NULL) + conf->paper = mandoc_strdup(cp); + break; + case 3: + if (conf->style == NULL) + conf->style = mandoc_strdup(cp); + break; + case 4: + if (conf->indent == 0) + conf->indent = strtonum(cp, 0, 1000, NULL); + break; + case 5: + if (conf->width == 0) + conf->width = strtonum(cp, 58, 1000, NULL); + break; + case 6: + conf->fragment = 1; + break; + case 7: + conf->mdoc = 1; + break; + default: + break; + } }