mandoc/apropos.c - diff

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Diff for /mandoc/Attic/apropos.c between version 1.16 and 1.17

version 1.16, 2011/11/20 16:29:50

version 1.17, 2011/11/20 21:36:00

Line 20

#endif

#include <assert.h>

#include <ctype.h>

#include <getopt.h>

#include <limits.h>

#include <stdio.h>

Line 30

Line 31

#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 {

Line 41 static int cmp(const void *, const void *);

Line 49 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;

Line 53 main(int argc, char *argv[])

Line 62 main(int argc, char *argv[])

size_t terms;

struct opts opts;

struct expr *e;

char *defpaths, *auxpaths;

extern int optind;

extern char *optarg;

Line 65 main(int argc, char *argv[])

Line 75 main(int argc, char *argv[])

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:S:s:")))

while (-1 != (ch = getopt(argc, argv, "M:m:S:s:")))

switch (ch) {

case ('M'):

defpaths = optarg;

break;

case ('m'):

manpath_parse(&paths, optarg);

auxpaths = optarg;

break;

case ('S'):

opts.arch = optarg;

Line 92 main(int argc, char *argv[])

Line 106 main(int argc, char *argv[])

goto out;

}

* Let MANPATH override our default paths.

if (NULL != getenv("MANPATH"))

manpath_add(&paths, getenv("MANPATH"));

defpaths = getenv("MANPATH");

if (NULL == defpaths)

manpath_parseconf(&paths);

else

manpath_add(&paths, ".");

manpath_parse(&paths, defpaths);

manpath_parse(&paths, auxpaths);

if (NULL == (e = exprcomp(argc, argv, &terms))) {

fprintf(stderr, "%s: Bad expression\n", progname);

goto out;

Line 153 usage(void)

Line 168 usage(void)

{

fprintf(stderr, "usage: %s "

"[-M dirs] "

"[-m dirs] "

"[-S arch] "

"[-s section] "

Line 167 manpath_parse(struct manpaths *dirs, char *path)

Line 183 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);

}

Line 180 manpath_add(struct manpaths *dirs, const char *dir)

Line 199 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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