2 * Copyright (c) 1980 The Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * 1999-02-22 Arkadiusz MiĆkiewicz <misiek@pld.ORG.PL>
34 * - added Native Language Support
35 * 2011-08-12 Davidlohr Bueso <dave@gnu.org>
36 * - added $PATH lookup
38 * Copyright (C) 2013 Karel Zak <kzak@redhat.com>
39 * 2013 Sami Kerola <kerolasa@iki.fi>
42 #include <sys/param.h>
43 #include <sys/types.h>
55 #include "closestream.h"
56 #include "canonicalize.h"
60 UL_DEBUG_DEFINE_MASK(whereis
);
61 UL_DEBUG_DEFINE_MASKNAMES(whereis
) = UL_DEBUG_EMPTY_MASKNAMES
;
63 #define WHEREIS_DEBUG_INIT (1 << 1)
64 #define WHEREIS_DEBUG_PATH (1 << 2)
65 #define WHEREIS_DEBUG_ENV (1 << 3)
66 #define WHEREIS_DEBUG_ARGV (1 << 4)
67 #define WHEREIS_DEBUG_SEARCH (1 << 5)
68 #define WHEREIS_DEBUG_STATIC (1 << 6)
69 #define WHEREIS_DEBUG_LIST (1 << 7)
70 #define WHEREIS_DEBUG_ALL 0xFFFF
72 #define DBG(m, x) __UL_DBG(whereis, WHEREIS_DEBUG_, m, x)
73 #define ON_DBG(m, x) __UL_DBG_CALL(whereis, WHEREIS_DEBUG_, m, x)
75 static char uflag
= 0;
83 ALL_DIRS
= BIN_DIR
| MAN_DIR
| SRC_DIR
93 struct wh_dirlist
*next
;
96 static const char *bindirs
[] = {
111 "/usr/lib/emacs/*/etc",
114 "/usr/interviews/bin/LINUX",
127 "/usr/local/games/bin",
128 "/usr/local/emacs/etc",
129 "/usr/local/TeX/bin",
130 "/usr/local/tex/bin",
131 "/usr/local/bin/X11",
150 static const char *mandirs
[] = {
156 "/usr/interviews/man/mann",
161 static const char *srcdirs
[] = {
163 "/usr/src/lib/libc/*",
164 "/usr/src/lib/libc/net/*",
165 "/usr/src/ucb/pascal",
166 "/usr/src/ucb/pascal/utilities",
171 static void whereis_init_debug(void)
173 __UL_INIT_DEBUG(whereis
, WHEREIS_DEBUG_
, 0, WHEREIS_DEBUG
);
176 static const char *whereis_type_to_name(int type
)
179 case BIN_DIR
: return "bin";
180 case MAN_DIR
: return "man";
181 case SRC_DIR
: return "src";
182 default: return "???";
186 static void __attribute__((__noreturn__
)) usage(FILE *out
)
188 fputs(USAGE_HEADER
, out
);
189 fprintf(out
, _(" %s [options] [-BMS <dir>... -f] <name>\n"), program_invocation_short_name
);
191 fputs(USAGE_SEPARATOR
, out
);
192 fputs(_("Locate the binary, source, and manual-page files for a command.\n"), out
);
194 fputs(USAGE_OPTIONS
, out
);
195 fputs(_(" -b search only for binaries\n"), out
);
196 fputs(_(" -B <dirs> define binaries lookup path\n"), out
);
197 fputs(_(" -m search only for manuals and infos\n"), out
);
198 fputs(_(" -M <dirs> define man and info lookup path\n"), out
);
199 fputs(_(" -s search only for sources\n"), out
);
200 fputs(_(" -S <dirs> define sources lookup path\n"), out
);
201 fputs(_(" -f terminate <dirs> argument list\n"), out
);
202 fputs(_(" -u search for unusual entries\n"), out
);
203 fputs(_(" -l output effective lookup paths\n"), out
);
204 fprintf(out
, USAGE_MAN_TAIL("whereis(1)"));
206 exit(out
== stderr
? EXIT_FAILURE
: EXIT_SUCCESS
);
209 static void dirlist_add_dir(struct wh_dirlist
**ls0
, int type
, const char *dir
)
212 struct wh_dirlist
*prev
= NULL
, *ls
= *ls0
;
214 if (access(dir
, R_OK
) != 0)
216 if (stat(dir
, &st
) != 0 || !S_ISDIR(st
.st_mode
))
220 if (ls
->st_ino
== st
.st_ino
&&
221 ls
->st_dev
== st
.st_dev
&&
223 DBG(LIST
, ul_debugobj(*ls0
, " ignore (already in list): %s", dir
));
231 ls
= xcalloc(1, sizeof(*ls
));
232 ls
->st_ino
= st
.st_ino
;
233 ls
->st_dev
= st
.st_dev
;
235 ls
->path
= canonicalize_path(dir
);
238 *ls0
= ls
; /* first in the list */
241 prev
->next
= ls
; /* add to the end of the list */
244 DBG(LIST
, ul_debugobj(*ls0
, " add dir: %s", ls
->path
));
248 /* special case for '*' in the paths */
249 static void dirlist_add_subdir(struct wh_dirlist
**ls
, int type
, const char *dir
)
251 char buf
[PATH_MAX
], *d
;
255 strncpy(buf
, dir
, PATH_MAX
);
256 buf
[PATH_MAX
- 1] = '\0';
258 d
= strchr(buf
, '*');
267 DBG(LIST
, ul_debugobj(*ls
, " scanning subdir: %s", dir
));
269 while ((dp
= readdir(dirp
)) != NULL
) {
270 if (!strcmp(dp
->d_name
, ".") || !strcmp(dp
->d_name
, ".."))
272 snprintf(d
, PATH_MAX
- (d
- buf
), "%s", dp
->d_name
);
273 /* a dir definition can have a star in middle of path */
274 strcat(buf
, strchr(dir
, '*') + 1);
275 dirlist_add_dir(ls
, type
, buf
);
281 static void construct_dirlist_from_env(const char *env
,
282 struct wh_dirlist
**ls
,
285 char *key
= NULL
, *tok
= NULL
, *pathcp
, *path
= getenv(env
);
289 pathcp
= xstrdup(path
);
291 DBG(ENV
, ul_debugobj(*ls
, "construct %s dirlist from: %s",
292 whereis_type_to_name(type
), path
));
294 for (tok
= strtok_r(pathcp
, ":", &key
); tok
;
295 tok
= strtok_r(NULL
, ":", &key
))
296 dirlist_add_dir(ls
, type
, tok
);
302 static void construct_dirlist_from_argv(struct wh_dirlist
**ls
,
310 DBG(ARGV
, ul_debugobj(*ls
, "construct %s dirlist from argv[%d..]",
311 whereis_type_to_name(type
), *idx
));
313 for (i
= *idx
; i
< argc
; i
++) {
314 if (*argv
[i
] == '-') /* end of the list */
317 DBG(ARGV
, ul_debugobj(*ls
, " using argv[%d]: %s", *idx
, argv
[*idx
]));
318 dirlist_add_dir(ls
, type
, argv
[i
]);
325 static void construct_dirlist(struct wh_dirlist
**ls
,
331 DBG(STATIC
, ul_debugobj(*ls
, "construct %s dirlist from static array",
332 whereis_type_to_name(type
)));
334 for (i
= 0; paths
[i
]; i
++) {
335 if (!strchr(paths
[i
], '*'))
336 dirlist_add_dir(ls
, type
, paths
[i
]);
338 dirlist_add_subdir(ls
, type
, paths
[i
]);
343 static void free_dirlist(struct wh_dirlist
**ls0
, int type
)
345 struct wh_dirlist
*prev
= NULL
, *next
, *ls
= *ls0
;
349 DBG(LIST
, ul_debugobj(*ls0
, "free dirlist"));
352 if (ls
->type
& type
) {
354 DBG(LIST
, ul_debugobj(*ls0
, " free: %s", ls
->path
));
362 *ls0
= ls
; /* first unremoved */
372 static int filename_equal(const char *cp
, const char *dp
)
376 DBG(SEARCH
, ul_debug("compare '%s' and '%s'", cp
, dp
));
378 if (dp
[0] == 's' && dp
[1] == '.' && filename_equal(cp
, dp
+ 2))
380 if (!strcmp(dp
+ i
- 2, ".Z"))
382 else if (!strcmp(dp
+ i
- 3, ".gz"))
384 else if (!strcmp(dp
+ i
- 3, ".xz"))
386 else if (!strcmp(dp
+ i
- 4, ".bz2"))
388 while (*cp
&& *dp
&& *cp
== *dp
)
390 if (*cp
== 0 && *dp
== 0)
394 if (*cp
== 0 && *dp
++ == '.') {
397 if (--i
, *dp
++ == '.')
398 return (*dp
++ == 'C' && *dp
++ == 0);
404 static void findin(const char *dir
, const char *pattern
, int *count
, char **wait
)
413 DBG(SEARCH
, ul_debug("find '%s' in '%s'", pattern
, dir
));
415 while ((dp
= readdir(dirp
)) != NULL
) {
416 if (!filename_equal(pattern
, dp
->d_name
))
419 if (uflag
&& *count
== 0)
420 xasprintf(wait
, "%s/%s", dir
, dp
->d_name
);
422 else if (uflag
&& *count
== 1 && *wait
) {
423 printf("%s: %s %s/%s", pattern
, *wait
, dir
, dp
->d_name
);
427 printf(" %s/%s", dir
, dp
->d_name
);
434 static void lookup(const char *pattern
, struct wh_dirlist
*ls
, int want
)
436 char patbuf
[PATH_MAX
];
438 char *wait
= NULL
, *p
;
440 /* canonicalize pattern -- remove path suffix etc. */
441 p
= strrchr(pattern
, '/');
442 p
= p
? p
+ 1 : (char *) pattern
;
443 strncpy(patbuf
, p
, PATH_MAX
);
444 patbuf
[PATH_MAX
- 1] = '\0';
446 DBG(SEARCH
, ul_debug("lookup dirs for '%s' (%s), want: %s %s %s",
448 want
& BIN_DIR
? "bin" : "",
449 want
& MAN_DIR
? "min" : "",
450 want
& SRC_DIR
? "src" : ""));
451 p
= strrchr(patbuf
, '.');
456 /* if -u not specified then we always print the pattern */
457 printf("%s:", patbuf
);
459 for (; ls
; ls
= ls
->next
) {
460 if ((ls
->type
& want
) && ls
->path
)
461 findin(ls
->path
, patbuf
, &count
, &wait
);
466 if (!uflag
|| (uflag
&& count
> 1))
471 static void list_dirlist(struct wh_dirlist
*ls
)
488 printf("%s\n", ls
->path
);
494 int main(int argc
, char **argv
)
496 struct wh_dirlist
*ls
= NULL
;
498 int i
, want_resetable
= 0, opt_f_missing
= 0;
500 setlocale(LC_ALL
, "");
501 bindtextdomain(PACKAGE
, LOCALEDIR
);
503 atexit(close_stdout
);
508 whereis_init_debug();
510 construct_dirlist(&ls
, BIN_DIR
, bindirs
);
511 construct_dirlist_from_env("PATH", &ls
, BIN_DIR
);
513 construct_dirlist(&ls
, MAN_DIR
, mandirs
);
514 construct_dirlist_from_env("MANPATH", &ls
, MAN_DIR
);
516 construct_dirlist(&ls
, SRC_DIR
, srcdirs
);
518 for (i
= 1; i
< argc
; i
++) {
519 const char *arg
= argv
[i
];
522 DBG(ARGV
, ul_debug("argv[%d]: %s", i
, arg
));
525 lookup(arg
, ls
, want
);
527 * The lookup mask ("want") is cumulative and it's
528 * resetable only when it has been already used.
530 * whereis -b -m foo :'foo' mask=BIN|MAN
531 * whereis -b foo bar :'foo' and 'bar' mask=BIN|MAN
532 * whereis -b foo -m bar :'foo' mask=BIN; 'bar' mask=MAN
538 for (++arg
; arg
&& *arg
; arg
++) {
539 DBG(ARGV
, ul_debug(" arg: %s", arg
));
553 free_dirlist(&ls
, BIN_DIR
);
554 construct_dirlist_from_argv(
555 &ls
, &i
, argc
, argv
, BIN_DIR
);
562 free_dirlist(&ls
, MAN_DIR
);
563 construct_dirlist_from_argv(
564 &ls
, &i
, argc
, argv
, MAN_DIR
);
571 free_dirlist(&ls
, SRC_DIR
);
572 construct_dirlist_from_argv(
573 &ls
, &i
, argc
, argv
, SRC_DIR
);
577 if (want_resetable
) {
581 want
= want
== ALL_DIRS
? BIN_DIR
: want
| BIN_DIR
;
585 if (want_resetable
) {
589 want
= want
== ALL_DIRS
? MAN_DIR
: want
| MAN_DIR
;
593 if (want_resetable
) {
597 want
= want
== ALL_DIRS
? SRC_DIR
: want
| SRC_DIR
;
604 printf(UTIL_LINUX_VERSION
);
612 if (arg_i
< i
) /* moved to the next argv[] item */
617 free_dirlist(&ls
, ALL_DIRS
);
619 errx(EXIT_FAILURE
, _("option -f is missing"));