-/* $Id: apropos.c,v 1.17 2011/11/20 21:36:00 kristaps Exp $ */
+/* $Id: apropos.c,v 1.31 2012/06/08 10:44:52 kristaps Exp $ */
/*
- * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include <sys/param.h>
#include <assert.h>
-#include <ctype.h>
#include <getopt.h>
-#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.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;
-};
-
-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;
+#include "manpath.h"
+#include "mansearch.h"
int
main(int argc, char *argv[])
{
- int i, ch, rc;
+ int ch;
+ size_t i, sz;
+ struct manpage *res;
+ char *conf_file, *defpaths, *auxpaths,
+ *arch, *sec;
struct manpaths paths;
- size_t terms;
- struct opts opts;
- struct expr *e;
- char *defpaths, *auxpaths;
- extern int optind;
+ char *progname;
extern char *optarg;
+ extern int optind;
progname = strrchr(argv[0], '/');
if (progname == NULL)
else
++progname;
+ auxpaths = defpaths = conf_file = arch = sec = NULL;
memset(&paths, 0, sizeof(struct manpaths));
- memset(&opts, 0, sizeof(struct opts));
- auxpaths = defpaths = NULL;
- e = NULL;
- rc = 0;
-
- while (-1 != (ch = getopt(argc, argv, "M:m:S:s:")))
+ while (-1 != (ch = getopt(argc, argv, "C:M:m:S:s:")))
switch (ch) {
+ case ('C'):
+ conf_file = optarg;
+ break;
case ('M'):
defpaths = optarg;
break;
auxpaths = optarg;
break;
case ('S'):
- opts.arch = optarg;
+ arch = optarg;
break;
case ('s'):
- opts.cat = optarg;
+ sec = optarg;
break;
default:
- usage();
- goto out;
+ goto usage;
}
argc -= optind;
argv += optind;
- if (0 == argc) {
- rc = 1;
- goto out;
- }
-
- if (NULL != getenv("MANPATH"))
- defpaths = getenv("MANPATH");
+ if (0 == argc)
+ goto usage;
- if (NULL == defpaths)
- manpath_parseconf(&paths);
- else
- manpath_parse(&paths, defpaths);
+ manpath_parse(&paths, conf_file, defpaths, auxpaths);
+ ch = mansearch(&paths, arch, sec, argc, argv, &res, &sz);
+ manpath_free(&paths);
- manpath_parse(&paths, auxpaths);
+ if (0 == ch)
+ goto usage;
- if (NULL == (e = exprcomp(argc, argv, &terms))) {
- fprintf(stderr, "%s: Bad expression\n", progname);
- goto out;
+ for (i = 0; i < sz; i++) {
+ printf("%s - %s\n", res[i].file, res[i].desc);
+ free(res[i].desc);
}
- rc = apropos_search
- (paths.sz, paths.paths,
- &opts, e, terms, NULL, list);
-
- if (0 == rc)
- fprintf(stderr, "%s: Error reading "
- "manual database\n", progname);
-
-out:
- for (i = 0; i < paths.sz; i++)
- free(paths.paths[i]);
-
- free(paths.paths);
- exprfree(e);
-
- return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
-}
-
-/* ARGSUSED */
-static void
-list(struct res *res, size_t sz, void *arg)
-{
- int i;
-
- qsort(res, sz, sizeof(struct res), cmp);
-
- for (i = 0; i < (int)sz; i++)
- printf("%s(%s%s%s) - %s\n", res[i].title,
- res[i].cat,
- *res[i].arch ? "/" : "",
- *res[i].arch ? res[i].arch : "",
- res[i].desc);
-}
-
-static int
-cmp(const void *p1, const void *p2)
-{
-
- return(strcmp(((const struct res *)p1)->title,
- ((const struct res *)p2)->title));
-}
-
-static void
-usage(void)
-{
-
- fprintf(stderr, "usage: %s "
- "[-M dirs] "
- "[-m dirs] "
- "[-S arch] "
- "[-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
+ free(res);
+ return(sz ? EXIT_SUCCESS : EXIT_FAILURE);
+usage:
+ fprintf(stderr, "usage: %s [-C conf] "
+ "[-M paths] "
+ "[-m paths] "
+ "[-S arch] "
+ "[-s section] "
+ "expr ...\n",
+ progname);
+ return(EXIT_FAILURE);
}
git.ckatri.com / mandoc.git / blobdiff