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#include "compat.h"
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "defs.h"
#include "gripes.h"
#include "man.h"
#include "man-config.h"
#include "man-getopt.h"
#include "util.h"
#include "version.h"
int alt_system;
char *alt_system_name;
char *opt_manpath;
int global_apropos = 0;
static void
print_version (void) {
gripe (VERSION, progname, version);
}
static void
usage (void) {
print_version();
gripe (USAGE1, progname);
gripe (USAGE2); /* only for alt_systems */
gripe (USAGE3);
gripe (USAGE4);
gripe (USAGE5); /* maybe only if troff found? */
gripe (USAGE6);
gripe (USAGE7); /* only for alt_systems */
gripe (USAGE8);
exit(1);
}
static char short_opts[] = "B:C:H:xM:P:S:acdDfFhkKm:p:s:tvVwW?";
#ifdef HAVE_GETOPT_H
# undef _GNU_SOURCE
# define _GNU_SOURCE
# include <getopt.h>
static const struct option long_opts[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'v' },
{ "path", no_argument, NULL, 'w' },
{ "preformat", no_argument, NULL, 'F' },
{ NULL, 0, NULL, 0 }
};
#endif /* HAVE_GETOPT_H */
/*
* Read options, return count.
*/
static int
get_options_from_argvec(int argc, char **argv, char **config_file,
char **manpath) {
char *s;
int c;
int optct = 0;
#ifdef HAVE_GETOPT_LONG
while ((c = getopt_long (argc, argv, short_opts, long_opts, NULL)) != -1){
#else
while ((c = getopt (argc, argv, short_opts)) != -1) {
#endif
switch (c) {
case 'C':
no_privileges ();
if (config_file)
*config_file = my_strdup (optarg);
break;
case'F':
preformat = 1;
break;
case 'M':
if (manpath)
*manpath = my_strdup (optarg);
break;
case 'P':
pager = my_strdup (optarg);
break;
case 'B':
browser = my_strdup (optarg);
break;
case 'H':
htmlpager = my_strdup (optarg);
break;
case 'S':
colon_sep_section_list = my_strdup (optarg);
break;
case 's':
/* undocumented; compatibility with Sun */
s = colon_sep_section_list = my_strdup (optarg);
while (*s) {
if (*s == ',')
*s = ':';
s++;
}
break;
case 'a':
findall++;
break;
case 'c':
nocats++;
break;
case 'D':
debug++;
case 'd':
debug++;
break;
case 'f':
if (do_troff)
fatal (INCOMPAT, "-f", "-t");
if (apropos)
fatal (INCOMPAT, "-f", "-k");
if (print_where)
fatal (INCOMPAT, "-f", "-w");
whatis++;
break;
case 'k':
if (do_troff)
fatal (INCOMPAT, "-k", "-t");
if (whatis)
fatal (INCOMPAT, "-k", "-f");
if (print_where)
fatal (INCOMPAT, "-k", "-w");
apropos++;
break;
case 'K':
global_apropos++;
break;
case 'm':
alt_system++;
alt_system_name = my_strdup (optarg);
break;
/* or: gripe (NO_ALTERNATE); exit(1); */
case 'p':
roff_directive = my_strdup (optarg);
break;
case 't':
if (apropos)
fatal (INCOMPAT, "-t", "-k");
if (whatis)
fatal (INCOMPAT, "-t", "-f");
if (print_where)
fatal (INCOMPAT, "-t", "-w");
do_troff++;
break;
case 'v':
case 'V':
print_version();
exit(0);
case 'W':
one_per_line++;
/* fall through */
case 'w':
if (apropos)
fatal (INCOMPAT, "-w", "-k");
if (whatis)
fatal (INCOMPAT, "-w", "-f");
if (do_troff)
fatal (INCOMPAT, "-w", "-t");
print_where++;
break;
case 'h':
case '?':
default:
usage();
break;
}
optct++;
}
return optct;
}
static void
get_options_from_string(const char *s) {
char *s0, *ss;
int argct;
char **argvec;
int optindsv;
if (!s || *s == 0)
return;
/* In order to avoid having a list of options in two places,
massage the string so that it can be fed to getopt() */
s0 = my_strdup(s);
/* count arguments */
argct = 0;
ss = s0;
while (*ss) {
while (*ss == ' ')
ss++;
if (*ss) {
argct++;
while (*ss && *ss != ' ')
ss++;
}
}
/* allocate argvec */
argvec = (char **) my_malloc((argct+2)*sizeof(char *));
argct = 0;
argvec[argct++] = "dummy";
ss = s0;
while (*ss) {
while (*ss == ' ')
*ss++ = 0;
if (*ss) {
argvec[argct++] = ss;
while (*ss && *ss != ' ')
ss++;
}
}
argvec[argct] = 0;
optindsv = optind;
optind = 1;
get_options_from_argvec(argct, argvec, NULL, NULL);
optind = optindsv;
}
static void
mysetenv(const char *name, const char *value) {
#ifdef HAVE_SETENV
setenv(name, value, 1);
#else
int len = strlen(value)+1+strlen(value)+1;
char *str = my_malloc(len);
sprintf(str, "%s=%s", name, value);
putenv(str);
#endif
}
/*
* Get options from the command line and user environment.
* Also reads the configuration file.
*/
void
man_getopt (int argc, char **argv) {
char *config_file = NULL;
char *manp = NULL;
int optct = 0;
optct = get_options_from_argvec(argc, argv, &config_file, &manp);
read_config_file (config_file);
/* If no options were given and MANDEFOPTIONS is set, use that */
if (optct == 0) {
const char *defopts = getval ("MANDEFOPTIONS");
get_options_from_string(defopts);
}
/* In case an explicit -P option was given, put it in the
environment for possible use with -k or -K.
Ignore errors (out of memory?) */
if (pager && (global_apropos || apropos || whatis))
mysetenv("PAGER", pager);
if (pager == NULL || *pager == '\0')
if ((pager = getenv ("MANPAGER")) == NULL)
if ((pager = getenv ("PAGER")) == NULL)
pager = getval ("PAGER");
if (debug)
gripe (PAGER_IS, pager);
/* Ditto for BROWSER and -B */
if (browser && (global_apropos || apropos || whatis))
mysetenv("BROWSER", browser);
if (browser == NULL || *browser == '\0')
if ((browser = getenv ("BROWSER")) == NULL)
browser = getval ("BROWSER");
if (debug)
gripe (BROWSER_IS, browser);
/* Ditto for HTMLPAGER and -H */
if (htmlpager && (global_apropos || apropos || whatis))
mysetenv("HTMLPAGER", htmlpager);
if (htmlpager == NULL || *htmlpager == '\0')
if ((htmlpager = getenv ("HTMLPAGER")) == NULL)
htmlpager = getval ("HTMLPAGER");
if (debug)
gripe (HTMLPAGER_IS, htmlpager);
if (do_compress && !*getval ("COMPRESS")) {
if (debug)
gripe (NO_COMPRESS);
do_compress = 0;
}
if (do_troff && !*getval ("TROFF")) {
gripe (NO_TROFF, configuration_file);
exit (1);
}
opt_manpath = manp; /* do not yet expand manpath -
maybe it is not needed */
if (alt_system_name == NULL || *alt_system_name == '\0')
if ((alt_system_name = getenv ("SYSTEM")) != NULL)
alt_system_name = my_strdup (alt_system_name);
}