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/* $Id$ */
/*
* 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
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <getopt.h>
#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "manpath.h"
#include "mansearch.h"
static void show(const char *, const char *);
int
main(int argc, char *argv[])
{
int ch, term;
size_t i, sz, len;
struct mansearch search;
struct manpage *res;
char *conf_file, *defpaths, *auxpaths, *cp;
char buf[PATH_MAX];
const char *cmd;
struct manpaths paths;
char *progname;
extern char *optarg;
extern int optind;
term = isatty(STDIN_FILENO) && isatty(STDOUT_FILENO);
progname = strrchr(argv[0], '/');
if (progname == NULL)
progname = argv[0];
else
++progname;
auxpaths = defpaths = conf_file = NULL;
memset(&paths, 0, sizeof(struct manpaths));
memset(&search, 0, sizeof(struct mansearch));
while (-1 != (ch = getopt(argc, argv, "C:M:m:S:s:")))
switch (ch) {
case ('C'):
conf_file = optarg;
break;
case ('M'):
defpaths = optarg;
break;
case ('m'):
auxpaths = optarg;
break;
case ('S'):
search.arch = optarg;
break;
case ('s'):
search.sec = optarg;
break;
default:
goto usage;
}
argc -= optind;
argv += optind;
if (0 == argc)
goto usage;
search.deftype = TYPE_Nm | TYPE_Nd;
manpath_parse(&paths, conf_file, defpaths, auxpaths);
ch = mansearch(&search, &paths, argc, argv, &res, &sz);
manpath_free(&paths);
if (0 == ch)
goto usage;
if (0 == sz) {
free(res);
return(EXIT_FAILURE);
} else if (1 == sz && term) {
i = 1;
goto show;
} else if (NULL == res)
return(EXIT_FAILURE);
for (i = 0; i < sz; i++) {
printf("%6zu %s: %s\n",
i + 1, res[i].file, res[i].desc);
free(res[i].desc);
}
if (0 == term) {
free(res);
return(EXIT_SUCCESS);
}
i = 1;
printf("Enter a choice [1]: ");
fflush(stdout);
if (NULL != (cp = fgetln(stdin, &len)))
if ('\n' == cp[--len] && len > 0) {
cp[len] = '\0';
if ((i = atoi(cp)) < 1 || i > sz)
i = 0;
}
if (0 == i) {
free(res);
return(EXIT_SUCCESS);
}
show:
cmd = res[i - 1].form ? "mandoc" : "cat";
strlcpy(buf, res[i - 1].file, PATH_MAX);
free(res);
show(cmd, buf);
/* NOTREACHED */
usage:
fprintf(stderr, "usage: %s [-C conf] "
"[-M paths] "
"[-m paths] "
"[-S arch] "
"[-s section] "
"expr ...\n",
progname);
return(EXIT_FAILURE);
}
static void
show(const char *cmd, const char *file)
{
int fds[2];
pid_t pid;
if (-1 == pipe(fds)) {
perror(NULL);
exit(EXIT_FAILURE);
}
if (-1 == (pid = fork())) {
perror(NULL);
exit(EXIT_FAILURE);
} else if (pid > 0) {
dup2(fds[0], STDIN_FILENO);
close(fds[1]);
cmd = NULL != getenv("MANPAGER") ?
getenv("MANPAGER") :
(NULL != getenv("PAGER") ?
getenv("PAGER") : "more");
execlp(cmd, cmd, (char *)NULL);
perror(cmd);
exit(EXIT_FAILURE);
}
dup2(fds[1], STDOUT_FILENO);
close(fds[0]);
execlp(cmd, cmd, file, (char *)NULL);
perror(cmd);
exit(EXIT_FAILURE);
}
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