From 0d939acd4f8824b1b980fca108e1064981608d28 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Wed, 23 Nov 2011 09:50:40 +0000
Subject: Have apropos(1) take advantage of manpath.h instead of doing the work
 itself.

---
 apropos.c | 139 +++-----------------------------------------------------------
 1 file changed, 5 insertions(+), 134 deletions(-)

(limited to 'apropos.c')

diff --git a/apropos.c b/apropos.c
index f70243a2..626cbf20 100644
--- a/apropos.c
+++ b/apropos.c
@@ -1,4 +1,4 @@
-/*	$Id: apropos.c,v 1.17 2011/11/20 21:36:00 kristaps Exp $ */
+/*	$Id: apropos.c,v 1.18 2011/11/23 09:50:40 kristaps Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -22,34 +22,16 @@
 #include <assert.h>
 #include <ctype.h>
 #include <getopt.h>
-#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "apropos_db.h"
 #include "mandoc.h"
-
-/*
- * FIXME: add support for manpath(1), which everybody but OpenBSD and
- * NetBSD seem to use.
- */
-#define MAN_CONF_FILE	"/etc/man.conf"
-#define MAN_CONF_KEY	"_whatdb"
-
-/*
- * List of paths to be searched for manual databases.
- */
-struct	manpaths {
-	int	  sz;
-	char	**paths;
-};
+#include "manpath.h"
 
 static	int	 cmp(const void *, const void *);
 static	void	 list(struct res *, size_t, void *);
-static	void	 manpath_add(struct manpaths *, const char *);
-static	void	 manpath_parse(struct manpaths *, char *);
-static	void	 manpath_parseconf(struct manpaths *);
 static	void	 usage(void);
 
 static	char	*progname;
@@ -57,7 +39,7 @@ static	char	*progname;
 int
 main(int argc, char *argv[])
 {
-	int		 i, ch, rc;
+	int		 ch, rc;
 	struct manpaths	 paths;
 	size_t		 terms;
 	struct opts	 opts;
@@ -106,15 +88,7 @@ main(int argc, char *argv[])
 		goto out;
 	}
 
-	if (NULL != getenv("MANPATH"))
-		defpaths = getenv("MANPATH");
-
-	if (NULL == defpaths)
-		manpath_parseconf(&paths);
-	else
-		manpath_parse(&paths, defpaths);
-
-	manpath_parse(&paths, auxpaths);
+	manpath_parse(&paths, defpaths, auxpaths);
 
 	if (NULL == (e = exprcomp(argc, argv, &terms))) {
 		fprintf(stderr, "%s: Bad expression\n", progname);
@@ -130,10 +104,7 @@ main(int argc, char *argv[])
 				"manual database\n", progname);
 
 out:
-	for (i = 0; i < paths.sz; i++)
-		free(paths.paths[i]);
-
-	free(paths.paths);
+	manpath_free(&paths);
 	exprfree(e);
 
 	return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
@@ -174,103 +145,3 @@ usage(void)
 			"[-s section] "
 			"expression...\n", progname);
 }
-
-/*
- * Parse a FULL pathname from a colon-separated list of arrays.
- */
-static void
-manpath_parse(struct manpaths *dirs, char *path) 
-{
-	char	*dir;
-
-	if (NULL == path)
-		return;
-
-	for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
-		manpath_add(dirs, dir);
-}
-
-/*
- * Add a directory to the array, ignoring bad directories.
- * Grow the array one-by-one for simplicity's sake.
- */
-static void
-manpath_add(struct manpaths *dirs, const char *dir) 
-{
-	char		 buf[PATH_MAX];
-	char		*cp;
-	int		 i;
-
-	if (NULL == (cp = realpath(dir, buf)))
-		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 *));
-
-	dirs->paths[dirs->sz++] = mandoc_strdup(cp);
-}
-
-static void
-manpath_parseconf(struct manpaths *dirs) 
-{
-	FILE		*stream;
-#ifdef	USE_MANPATH
-	char		*buf;
-	size_t		 sz, bsz;
-
-	stream = popen("manpath", "r");
-	if (NULL == stream)
-		return;
-
-	buf = NULL;
-	bsz = 0;
-
-	do {
-		buf = mandoc_realloc(buf, bsz + 1024);
-		sz = fread(buf + (int)bsz, 1, 1024, stream);
-		bsz += sz;
-	} while (sz > 0);
-
-	assert(bsz && '\n' == buf[bsz - 1]);
-	buf[bsz - 1] = '\0';
-
-	manpath_parse(dirs, buf);
-	free(buf);
-	pclose(stream);
-#else
-	char		*p, *q;
-	size_t	 	 len, keysz;
-
-	keysz = strlen(MAN_CONF_KEY);
-	assert(keysz > 0);
-
-	if (NULL == (stream = fopen(MAN_CONF_FILE, "r")))
-		return;
-
-	while (NULL != (p = fgetln(stream, &len))) {
-		if (0 == len || '\n' == p[--len])
-			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);
-#endif
-}
-- 
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