2016-01-15 23:08:59 +00:00
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/* $Id: manpath.c,v 1.29 2015/11/07 17:58:55 schwarze Exp $ */
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2012-10-18 09:55:16 +00:00
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/*
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2016-01-15 23:08:59 +00:00
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* Copyright (c) 2011, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
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2012-10-18 09:55:16 +00:00
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* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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2016-01-15 23:08:59 +00:00
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
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2012-10-18 09:55:16 +00:00
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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2016-01-15 23:08:59 +00:00
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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2012-10-18 09:55:16 +00:00
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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2014-12-02 07:34:06 +00:00
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#include <sys/types.h>
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#include <sys/stat.h>
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2012-10-18 09:55:16 +00:00
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#include <ctype.h>
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2016-01-15 23:08:59 +00:00
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#if HAVE_ERR
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#include <err.h>
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#endif
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2012-10-18 09:55:16 +00:00
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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2014-11-22 18:08:25 +00:00
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#include "mandoc_aux.h"
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2016-01-15 23:08:59 +00:00
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#include "manconf.h"
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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#if !HAVE_MANPATH
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static void manconf_file(struct manconf *, const char *);
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#endif
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2014-12-02 07:34:06 +00:00
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static void manpath_add(struct manpaths *, const char *, int);
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static void manpath_parseline(struct manpaths *, char *, int);
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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2012-10-18 09:55:16 +00:00
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void
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2016-01-15 23:08:59 +00:00
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manconf_parse(struct manconf *conf, const char *file,
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2012-10-18 09:55:16 +00:00
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char *defp, char *auxp)
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{
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2014-12-02 07:34:06 +00:00
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#if HAVE_MANPATH
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2014-01-31 19:59:03 +00:00
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char cmd[(PATH_MAX * 3) + 20];
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2012-10-18 09:55:16 +00:00
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FILE *stream;
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char *buf;
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size_t sz, bsz;
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strlcpy(cmd, "manpath", sizeof(cmd));
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if (file) {
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strlcat(cmd, " -C ", sizeof(cmd));
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strlcat(cmd, file, sizeof(cmd));
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}
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if (auxp) {
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strlcat(cmd, " -m ", sizeof(cmd));
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strlcat(cmd, auxp, sizeof(cmd));
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}
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if (defp) {
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strlcat(cmd, " -M ", sizeof(cmd));
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strlcat(cmd, defp, sizeof(cmd));
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}
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/* Open manpath(1). Ignore errors. */
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stream = popen(cmd, "r");
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if (NULL == stream)
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return;
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buf = NULL;
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bsz = 0;
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/* Read in as much output as we can. */
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do {
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buf = mandoc_realloc(buf, bsz + 1024);
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2014-01-31 19:59:03 +00:00
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sz = fread(buf + bsz, 1, 1024, stream);
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2012-10-18 09:55:16 +00:00
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bsz += sz;
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} while (sz > 0);
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if ( ! ferror(stream) && feof(stream) &&
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bsz && '\n' == buf[bsz - 1]) {
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buf[bsz - 1] = '\0';
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, buf, 1);
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2012-10-18 09:55:16 +00:00
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}
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free(buf);
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pclose(stream);
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#else
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char *insert;
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/* Always prepend -m. */
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, auxp, 1);
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2014-01-31 19:59:03 +00:00
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2012-10-18 09:55:16 +00:00
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/* If -M is given, it overrides everything else. */
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if (NULL != defp) {
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, defp, 1);
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2012-10-18 09:55:16 +00:00
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return;
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}
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/* MANPATH and man.conf(5) cooperate. */
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defp = getenv("MANPATH");
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if (NULL == file)
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file = MAN_CONF_FILE;
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/* No MANPATH; use man.conf(5) only. */
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if (NULL == defp || '\0' == defp[0]) {
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2016-01-15 23:08:59 +00:00
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manconf_file(conf, file);
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2012-10-18 09:55:16 +00:00
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return;
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}
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/* Prepend man.conf(5) to MANPATH. */
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if (':' == defp[0]) {
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2016-01-15 23:08:59 +00:00
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manconf_file(conf, file);
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manpath_parseline(&conf->manpath, defp, 0);
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2012-10-18 09:55:16 +00:00
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return;
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}
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/* Append man.conf(5) to MANPATH. */
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2014-01-31 19:59:03 +00:00
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if (':' == defp[strlen(defp) - 1]) {
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, defp, 0);
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manconf_file(conf, file);
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2012-10-18 09:55:16 +00:00
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return;
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}
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/* Insert man.conf(5) into MANPATH. */
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insert = strstr(defp, "::");
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if (NULL != insert) {
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*insert++ = '\0';
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, defp, 0);
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manconf_file(conf, file);
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manpath_parseline(&conf->manpath, insert + 1, 0);
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2012-10-18 09:55:16 +00:00
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return;
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}
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/* MANPATH overrides man.conf(5) completely. */
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2016-01-15 23:08:59 +00:00
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manpath_parseline(&conf->manpath, defp, 0);
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2012-10-18 09:55:16 +00:00
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#endif
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}
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/*
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* Parse a FULL pathname from a colon-separated list of arrays.
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*/
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static void
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2014-12-02 07:34:06 +00:00
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manpath_parseline(struct manpaths *dirs, char *path, int complain)
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2012-10-18 09:55:16 +00:00
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{
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char *dir;
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if (NULL == path)
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return;
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for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
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2014-12-02 07:34:06 +00:00
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manpath_add(dirs, dir, complain);
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2012-10-18 09:55:16 +00:00
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}
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/*
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* Add a directory to the array, ignoring bad directories.
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* Grow the array one-by-one for simplicity's sake.
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*/
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static void
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2014-12-02 07:34:06 +00:00
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manpath_add(struct manpaths *dirs, const char *dir, int complain)
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2012-10-18 09:55:16 +00:00
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{
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char buf[PATH_MAX];
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2014-12-02 07:34:06 +00:00
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struct stat sb;
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2012-10-18 09:55:16 +00:00
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char *cp;
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2014-01-31 19:59:03 +00:00
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size_t i;
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2012-10-18 09:55:16 +00:00
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2014-12-02 07:34:06 +00:00
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if (NULL == (cp = realpath(dir, buf))) {
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2016-01-15 23:08:59 +00:00
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if (complain)
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warn("manpath: %s", dir);
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2012-10-18 09:55:16 +00:00
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return;
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2014-12-02 07:34:06 +00:00
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}
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2012-10-18 09:55:16 +00:00
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for (i = 0; i < dirs->sz; i++)
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if (0 == strcmp(dirs->paths[i], dir))
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return;
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2014-12-02 07:34:06 +00:00
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if (stat(cp, &sb) == -1) {
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2016-01-15 23:08:59 +00:00
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if (complain)
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warn("manpath: %s", dir);
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2014-12-02 07:34:06 +00:00
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return;
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}
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2014-11-22 18:08:25 +00:00
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dirs->paths = mandoc_reallocarray(dirs->paths,
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dirs->sz + 1, sizeof(char *));
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2012-10-18 09:55:16 +00:00
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dirs->paths[dirs->sz++] = mandoc_strdup(cp);
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}
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void
|
2016-01-15 23:08:59 +00:00
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manconf_free(struct manconf *conf)
|
2012-10-18 09:55:16 +00:00
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{
|
2014-01-31 19:59:03 +00:00
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size_t i;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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for (i = 0; i < conf->manpath.sz; i++)
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free(conf->manpath.paths[i]);
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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free(conf->manpath.paths);
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free(conf->output.includes);
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free(conf->output.man);
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free(conf->output.paper);
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free(conf->output.style);
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2012-10-18 09:55:16 +00:00
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}
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2016-01-15 23:08:59 +00:00
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#if !HAVE_MANPATH
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static void
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manconf_file(struct manconf *conf, const char *file)
|
2012-10-18 09:55:16 +00:00
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{
|
2016-01-15 23:08:59 +00:00
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const char *const toks[] = { "manpath", "output", "_whatdb" };
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char manpath_default[] = MANPATH_DEFAULT;
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2012-10-18 09:55:16 +00:00
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FILE *stream;
|
2016-01-15 23:08:59 +00:00
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char *line, *cp, *ep;
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size_t linesz, tok, toklen;
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ssize_t linelen;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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if ((stream = fopen(file, "r")) == NULL)
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goto out;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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line = NULL;
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linesz = 0;
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2012-10-18 09:55:16 +00:00
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2016-01-15 23:08:59 +00:00
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while ((linelen = getline(&line, &linesz, stream)) != -1) {
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cp = line;
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ep = cp + linelen;
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if (ep[-1] != '\n')
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2012-10-18 09:55:16 +00:00
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break;
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2016-01-15 23:08:59 +00:00
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*--ep = '\0';
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while (isspace((unsigned char)*cp))
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cp++;
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if (*cp == '#')
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2012-10-18 09:55:16 +00:00
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continue;
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2016-01-15 23:08:59 +00:00
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for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
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toklen = strlen(toks[tok]);
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if (cp + toklen < ep &&
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isspace((unsigned char)cp[toklen]) &&
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strncmp(cp, toks[tok], toklen) == 0) {
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cp += toklen;
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while (isspace((unsigned char)*cp))
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cp++;
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break;
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}
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}
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switch (tok) {
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case 2: /* _whatdb */
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while (ep > cp && ep[-1] != '/')
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ep--;
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if (ep == cp)
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continue;
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*ep = '\0';
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/* FALLTHROUGH */
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case 0: /* manpath */
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manpath_add(&conf->manpath, cp, 0);
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*manpath_default = '\0';
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break;
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case 1: /* output */
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manconf_output(&conf->output, cp);
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break;
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default:
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break;
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}
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}
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free(line);
|
2012-10-18 09:55:16 +00:00
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fclose(stream);
|
2016-01-15 23:08:59 +00:00
|
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out:
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if (*manpath_default != '\0')
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manpath_parseline(&conf->manpath, manpath_default, 0);
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}
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#endif
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void
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manconf_output(struct manoutput *conf, const char *cp)
|
|
|
|
{
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const char *const toks[] = {
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|
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"includes", "man", "paper", "style",
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|
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"indent", "width", "fragment", "mdoc"
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};
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size_t len, tok;
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for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
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len = strlen(toks[tok]);
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if ( ! strncmp(cp, toks[tok], len) &&
|
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strchr(" = ", cp[len]) != NULL) {
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cp += len;
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if (*cp == '=')
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cp++;
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while (isspace((unsigned char)*cp))
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cp++;
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break;
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}
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}
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|
if (tok < 6 && *cp == '\0')
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return;
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|
|
|
|
|
|
switch (tok) {
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|
case 0:
|
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|
|
if (conf->includes == NULL)
|
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|
|
conf->includes = mandoc_strdup(cp);
|
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|
|
break;
|
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|
|
case 1:
|
|
|
|
if (conf->man == NULL)
|
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|
|
conf->man = mandoc_strdup(cp);
|
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|
|
break;
|
|
|
|
case 2:
|
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|
|
if (conf->paper == NULL)
|
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|
conf->paper = mandoc_strdup(cp);
|
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|
|
break;
|
|
|
|
case 3:
|
|
|
|
if (conf->style == NULL)
|
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|
|
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;
|
|
|
|
}
|
2012-10-18 09:55:16 +00:00
|
|
|
}
|