version 1.15, 2011/11/20 15:43:14 |
version 1.30, 2012/03/24 02:18:51 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
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#ifdef HAVE_CONFIG_H |
#ifdef HAVE_CONFIG_H |
#include "config.h" |
#include "config.h" |
#endif |
#endif |
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#include <sys/param.h> |
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#include <assert.h> |
#include <assert.h> |
#include <getopt.h> |
#include <getopt.h> |
#include <limits.h> |
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#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <unistd.h> |
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#include "apropos_db.h" |
#include "apropos_db.h" |
#include "mandoc.h" |
#include "mandoc.h" |
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#include "manpath.h" |
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/* |
#define SINGLETON(_res, _sz) \ |
* List of paths to be searched for manual databases. |
((_sz) && (_res)[0].matched && \ |
*/ |
(1 == (_sz) || 0 == (_res)[1].matched)) |
struct manpaths { |
#define EMPTYSET(_res, _sz) \ |
int sz; |
((0 == (_sz)) || 0 == (_res)[0].matched) |
char **paths; |
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}; |
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static int cmp(const void *, const void *); |
static int cmp(const void *, const void *); |
static void list(struct res *, size_t, void *); |
static void list(struct res *, size_t, void *); |
static int manpath_add(struct manpaths *, const char *); |
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static int manpath_parse(struct manpaths *, char *); |
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static void usage(void); |
static void usage(void); |
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static char *progname; |
static char *progname; |
Line 48 static char *progname; |
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Line 46 static char *progname; |
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int |
int |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
{ |
{ |
int i, ch, rc; |
int ch, rc, whatis, usecat; |
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struct res *res; |
struct manpaths paths; |
struct manpaths paths; |
size_t terms; |
const char *prog; |
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pid_t pid; |
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char path[PATH_MAX]; |
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int fds[2]; |
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size_t terms, ressz, sz; |
struct opts opts; |
struct opts opts; |
struct expr *e; |
struct expr *e; |
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char *defpaths, *auxpaths, *conf_file, *cp; |
extern int optind; |
extern int optind; |
extern char *optarg; |
extern char *optarg; |
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Line 62 main(int argc, char *argv[]) |
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Line 66 main(int argc, char *argv[]) |
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else |
else |
++progname; |
++progname; |
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whatis = 0 == strncmp(progname, "whatis", 6); |
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memset(&paths, 0, sizeof(struct manpaths)); |
memset(&paths, 0, sizeof(struct manpaths)); |
memset(&opts, 0, sizeof(struct opts)); |
memset(&opts, 0, sizeof(struct opts)); |
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usecat = 0; |
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ressz = 0; |
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res = NULL; |
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auxpaths = defpaths = NULL; |
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conf_file = NULL; |
e = NULL; |
e = NULL; |
rc = 0; |
path[0] = '\0'; |
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while (-1 != (ch = getopt(argc, argv, "m:S:s:"))) |
while (-1 != (ch = getopt(argc, argv, "C:M:m:S:s:"))) |
switch (ch) { |
switch (ch) { |
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case ('C'): |
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conf_file = optarg; |
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break; |
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case ('M'): |
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defpaths = optarg; |
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break; |
case ('m'): |
case ('m'): |
if ( ! manpath_parse(&paths, optarg)) |
auxpaths = optarg; |
goto out; |
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break; |
break; |
case ('S'): |
case ('S'): |
opts.arch = optarg; |
opts.arch = optarg; |
Line 82 main(int argc, char *argv[]) |
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Line 98 main(int argc, char *argv[]) |
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break; |
break; |
default: |
default: |
usage(); |
usage(); |
goto out; |
return(EXIT_FAILURE); |
} |
} |
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argc -= optind; |
argc -= optind; |
argv += optind; |
argv += optind; |
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if (0 == argc) { |
if (0 == argc) |
rc = 1; |
return(EXIT_SUCCESS); |
goto out; |
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} |
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if (0 == paths.sz && ! manpath_add(&paths, ".")) |
rc = 0; |
goto out; |
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if (NULL == (e = exprcomp(argc, argv, &terms))) { |
manpath_parse(&paths, conf_file, defpaths, auxpaths); |
/* FIXME: be more specific about this. */ |
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fprintf(stderr, "Bad expression\n"); |
e = whatis ? termcomp(argc, argv, &terms) : |
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exprcomp(argc, argv, &terms); |
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if (NULL == e) { |
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fprintf(stderr, "%s: Bad expression\n", progname); |
goto out; |
goto out; |
} |
} |
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rc = apropos_search |
rc = apropos_search |
(paths.sz, paths.paths, |
(paths.sz, paths.paths, &opts, |
&opts, e, terms, NULL, list); |
e, terms, NULL, &ressz, &res, list); |
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/* FIXME: report an error based on ch. */ |
terms = 1; |
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out: |
if (0 == rc) { |
for (i = 0; i < paths.sz; i++) |
fprintf(stderr, "%s: Bad database\n", progname); |
free(paths.paths[i]); |
goto out; |
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} else if ( ! isatty(STDOUT_FILENO) || EMPTYSET(res, ressz)) |
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goto out; |
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free(paths.paths); |
if ( ! SINGLETON(res, ressz)) { |
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printf("Which manpage would you like [1]? "); |
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fflush(stdout); |
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if (NULL != (cp = fgetln(stdin, &sz)) && |
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sz > 1 && '\n' == cp[--sz]) { |
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if ((ch = atoi(cp)) <= 0) |
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goto out; |
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terms = (size_t)ch; |
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} |
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} |
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if (--terms < ressz && res[terms].matched) { |
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chdir(paths.paths[res[terms].volume]); |
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strlcpy(path, res[terms].file, PATH_MAX); |
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usecat = RESTYPE_CAT == res[terms].type; |
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} |
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out: |
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manpath_free(&paths); |
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resfree(res, ressz); |
exprfree(e); |
exprfree(e); |
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return(rc ? EXIT_SUCCESS : EXIT_FAILURE); |
if ('\0' == path[0]) |
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return(rc ? EXIT_SUCCESS : EXIT_FAILURE); |
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if (-1 == pipe(fds)) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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if (-1 == (pid = fork())) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} else if (pid > 0) { |
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dup2(fds[0], STDIN_FILENO); |
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close(fds[1]); |
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prog = NULL != getenv("MANPAGER") ? |
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getenv("MANPAGER") : |
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(NULL != getenv("PAGER") ? |
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getenv("PAGER") : "more"); |
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execlp(prog, prog, (char *)NULL); |
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perror(prog); |
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return(EXIT_FAILURE); |
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} |
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dup2(fds[1], STDOUT_FILENO); |
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close(fds[0]); |
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prog = usecat ? "cat" : "mandoc"; |
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execlp(prog, prog, path, (char *)NULL); |
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perror(prog); |
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return(EXIT_FAILURE); |
} |
} |
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/* ARGSUSED */ |
/* ARGSUSED */ |
static void |
static void |
list(struct res *res, size_t sz, void *arg) |
list(struct res *res, size_t sz, void *arg) |
{ |
{ |
int i; |
size_t i; |
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qsort(res, sz, sizeof(struct res), cmp); |
qsort(res, sz, sizeof(struct res), cmp); |
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for (i = 0; i < (int)sz; i++) |
if (EMPTYSET(res, sz) || SINGLETON(res, sz)) |
printf("%s(%s%s%s) - %s\n", res[i].title, |
return; |
res[i].cat, |
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*res[i].arch ? "/" : "", |
if ( ! isatty(STDOUT_FILENO)) |
*res[i].arch ? res[i].arch : "", |
for (i = 0; i < sz && res[i].matched; i++) |
res[i].desc); |
printf("%s(%s%s%s) - %.70s\n", |
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res[i].title, res[i].cat, |
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*res[i].arch ? "/" : "", |
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*res[i].arch ? res[i].arch : "", |
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res[i].desc); |
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else |
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for (i = 0; i < sz && res[i].matched; i++) |
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printf("[%zu] %s(%s%s%s) - %.70s\n", i + 1, |
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res[i].title, res[i].cat, |
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*res[i].arch ? "/" : "", |
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*res[i].arch ? res[i].arch : "", |
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res[i].desc); |
} |
} |
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static int |
static int |
cmp(const void *p1, const void *p2) |
cmp(const void *p1, const void *p2) |
{ |
{ |
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const struct res *r1 = p1; |
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const struct res *r2 = p2; |
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return(strcmp(((const struct res *)p1)->title, |
if (0 == r1->matched) |
((const struct res *)p2)->title)); |
return(1); |
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else if (0 == r2->matched) |
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return(1); |
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return(strcasecmp(r1->title, r2->title)); |
} |
} |
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static void |
static void |
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{ |
{ |
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fprintf(stderr, "usage: %s " |
fprintf(stderr, "usage: %s " |
"[-m dirs] " |
"[-C file] " |
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"[-M manpath] " |
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"[-m manpath] " |
"[-S arch] " |
"[-S arch] " |
"[-s section] " |
"[-s section] " |
"expression...\n", progname); |
"expression ...\n", |
} |
progname); |
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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 int |
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manpath_parse(struct manpaths *dirs, char *path) |
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{ |
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char *dir; |
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for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":")) |
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if ( ! manpath_add(dirs, dir)) |
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return(0); |
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return(1); |
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} |
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/* |
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* Add a directory to the array. |
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* Grow the array one-by-one for simplicity's sake. |
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* Return 0 if the directory is not a real path. |
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*/ |
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static int |
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manpath_add(struct manpaths *dirs, const char *dir) |
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{ |
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char buf[PATH_MAX]; |
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char *cp; |
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if (NULL == (cp = realpath(dir, buf))) { |
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fprintf(stderr, "%s: Invalid path\n", dir); |
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return(0); |
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} |
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dirs->paths = mandoc_realloc |
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(dirs->paths, |
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((size_t)dirs->sz + 1) * sizeof(char *)); |
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dirs->paths[dirs->sz++] = mandoc_strdup(cp); |
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return(1); |
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} |
} |