48ef709a3f
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2453 ec53bebd-3082-4978-b11e-865c3cabbd6b
325 lines
7.9 KiB
C
325 lines
7.9 KiB
C
/*
|
|
* Copyright (c) 1997 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Kungliga Tekniska
|
|
* Högskolan and its contributors.
|
|
*
|
|
* 4. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
RCSID("$Id$");
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <roken.h>
|
|
#include "getarg.h"
|
|
|
|
static size_t
|
|
print_arg (int longp, struct getargs *arg)
|
|
{
|
|
const char *s;
|
|
|
|
if (arg->type == arg_flag || arg->type == arg_negative_flag)
|
|
return 0;
|
|
|
|
if (longp)
|
|
putc ('=', stderr);
|
|
else
|
|
putc (' ', stderr);
|
|
|
|
if (arg->arg_help)
|
|
s = arg->arg_help;
|
|
else if (arg->type == arg_integer)
|
|
s = "number";
|
|
else if (arg->type == arg_string)
|
|
s = "string";
|
|
|
|
fprintf (stderr, "%s", s);
|
|
return 1 + strlen(s);
|
|
}
|
|
|
|
void
|
|
arg_printusage (struct getargs *args,
|
|
size_t num_args,
|
|
const char *extra_string)
|
|
{
|
|
int i;
|
|
size_t max_len = 0;
|
|
|
|
fprintf (stderr, "Usage: %s", __progname);
|
|
for (i = 0; i < num_args; ++i) {
|
|
size_t len = 0;
|
|
|
|
if (args[i].long_name) {
|
|
len += 2 + strlen(args[i].long_name);
|
|
fprintf (stderr,
|
|
" [--%s%s",
|
|
args[i].type == arg_negative_flag ?
|
|
"no-" : "",
|
|
args[i].long_name);
|
|
len += print_arg (1, &args[i]);
|
|
if (args[i].type == arg_negative_flag)
|
|
len += 3;
|
|
putc (']', stderr);
|
|
}
|
|
if (args[i].short_name) {
|
|
len += 2;
|
|
fprintf (stderr, " [-%c", args[i].short_name);
|
|
len += print_arg (0, &args[i]);
|
|
putc (']', stderr);
|
|
}
|
|
if (args[i].long_name && args[i].short_name)
|
|
len += 4;
|
|
max_len = max(max_len, len);
|
|
}
|
|
if (extra_string)
|
|
fprintf (stderr, " %s\n", extra_string);
|
|
else
|
|
fprintf (stderr, "\n");
|
|
for (i = 0; i < num_args; ++i) {
|
|
if (args[i].help) {
|
|
size_t count = 0;
|
|
|
|
if (args[i].short_name) {
|
|
fprintf (stderr, "-%c", args[i].short_name);
|
|
count += 2;
|
|
count += print_arg (0, &args[i]);
|
|
}
|
|
if (args[i].short_name && args[i].long_name) {
|
|
fprintf (stderr, " or ");
|
|
count += 4;
|
|
}
|
|
if (args[i].long_name) {
|
|
fprintf (stderr, "--%s%s",
|
|
args[i].type == arg_negative_flag ?
|
|
"no-" : "",
|
|
args[i].long_name);
|
|
count += 2 + strlen(args[i].long_name);
|
|
if (args[i].type == arg_negative_flag)
|
|
count += 3;
|
|
count += print_arg (1, &args[i]);
|
|
}
|
|
while(count++ <= max_len)
|
|
putc (' ', stderr);
|
|
fprintf (stderr, "%s\n", args[i].help);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
arg_match_long(struct getargs *args, size_t num_args,
|
|
char *argv)
|
|
{
|
|
int i;
|
|
char *optarg;
|
|
int negate;
|
|
int partial_match = 0;
|
|
struct getargs *partial = NULL;
|
|
struct getargs *current = NULL;
|
|
int argv_len;
|
|
char *p;
|
|
|
|
argv_len = strlen(argv);
|
|
p = strchr (argv, '=');
|
|
if (p != NULL)
|
|
argv_len = p - argv;
|
|
|
|
for (i = 0; i < num_args; ++i) {
|
|
if(args[i].long_name) {
|
|
int len = strlen(args[i].long_name);
|
|
char *p = argv;
|
|
int p_len = argv_len;
|
|
negate = 0;
|
|
|
|
for (;;) {
|
|
if (strncmp (args[i].long_name, p, len) == 0) {
|
|
current = &args[i];
|
|
optarg = p + len;
|
|
} else if (strncmp (args[i].long_name,
|
|
p,
|
|
p_len) == 0) {
|
|
++partial_match;
|
|
partial = &args[i];
|
|
optarg = p + p_len;
|
|
} else if (args[i].type == arg_flag
|
|
&& strncmp (argv, "no-", 3) == 0) {
|
|
negate = !negate;
|
|
p += 3;
|
|
p_len -= 3;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (current)
|
|
break;
|
|
}
|
|
}
|
|
if (current == NULL)
|
|
if (partial_match == 1)
|
|
current = partial;
|
|
else
|
|
return ARG_ERR_NO_MATCH;
|
|
|
|
if(*optarg != '=' && (current->type != arg_flag && *optarg == 0))
|
|
return ARG_ERR_NO_MATCH;
|
|
switch(current->type){
|
|
case arg_integer:
|
|
{
|
|
int tmp;
|
|
if(sscanf(optarg + 1, "%d", &tmp) != 1)
|
|
return ARG_ERR_BAD_ARG;
|
|
*(int*)current->value = tmp;
|
|
return 0;
|
|
}
|
|
case arg_string:
|
|
{
|
|
*(char**)current->value = optarg + 1;
|
|
return 0;
|
|
}
|
|
case arg_flag:
|
|
{
|
|
int *flag = current->value;
|
|
if(*optarg == 0 ||
|
|
strcmp(optarg + 1, "yes") == 0 ||
|
|
strcmp(optarg + 1, "true") == 0){
|
|
*flag = !negate;
|
|
return 0;
|
|
} else if (*optarg && strcmp(optarg + 1, "maybe") == 0) {
|
|
*flag = rand() & 1;
|
|
} else {
|
|
*flag = negate;
|
|
return 0;
|
|
}
|
|
return ARG_ERR_BAD_ARG;
|
|
}
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
int
|
|
getarg(struct getargs *args, size_t num_args,
|
|
int argc, char **argv, int *optind)
|
|
{
|
|
int i, j, k;
|
|
int ret = 0;
|
|
|
|
srand (time(NULL));
|
|
(*optind)++;
|
|
for(i = *optind; i < argc; i++) {
|
|
if(argv[i][0] != '-')
|
|
break;
|
|
if(argv[i][1] == '-'){
|
|
if(argv[i][2] == 0){
|
|
i++;
|
|
break;
|
|
}
|
|
ret = arg_match_long (args, num_args, argv[i] + 2);
|
|
if(ret)
|
|
return ret;
|
|
}else{
|
|
for(j = 1; argv[i][j]; j++) {
|
|
for(k = 0; k < num_args; k++) {
|
|
char *optarg;
|
|
if(args[k].short_name == 0)
|
|
continue;
|
|
if(argv[i][j] == args[k].short_name){
|
|
if(args[k].type == arg_flag){
|
|
*(int*)args[k].value = 1;
|
|
break;
|
|
}
|
|
if(args[k].type == arg_negative_flag){
|
|
*(int*)args[k].value = 0;
|
|
break;
|
|
}
|
|
if(argv[i][j + 1])
|
|
optarg = &argv[i][j + 1];
|
|
else{
|
|
i++;
|
|
optarg = argv[i];
|
|
}
|
|
if(optarg == NULL)
|
|
return ARG_ERR_NO_ARG;
|
|
if(args[k].type == arg_integer){
|
|
int tmp;
|
|
if(sscanf(optarg, "%d", &tmp) != 1)
|
|
return ARG_ERR_BAD_ARG;
|
|
*(int*)args[k].value = tmp;
|
|
break;
|
|
}else if(args[k].type == arg_string){
|
|
*(char**)args[k].value = optarg;
|
|
break;
|
|
}
|
|
return ARG_ERR_BAD_ARG;
|
|
}
|
|
|
|
}
|
|
if (k == num_args)
|
|
return ARG_ERR_NO_MATCH;
|
|
}
|
|
}
|
|
}
|
|
*optind = i;
|
|
return 0;
|
|
}
|
|
|
|
#if TEST
|
|
int foo_flag = 2;
|
|
int flag1 = 0;
|
|
int flag2 = 0;
|
|
int bar_int;
|
|
char *baz_string;
|
|
|
|
struct getargs args[] = {
|
|
{ NULL, '1', arg_flag, &flag1, "one", NULL },
|
|
{ NULL, '2', arg_flag, &flag2, "two", NULL },
|
|
{ "foo", 'f', arg_negative_flag, &foo_flag, "foo", NULL },
|
|
{ "bar", 'b', arg_integer, &bar_int, "bar", "seconds"},
|
|
{ "baz", 'x', arg_string, &baz_string, "baz", "name" },
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int optind = 0;
|
|
while(getarg(args, 5, argc, argv, &optind))
|
|
printf("Bad arg: %s\n", argv[optind]);
|
|
printf("flag1 = %d\n", flag1);
|
|
printf("flag2 = %d\n", flag2);
|
|
printf("foo_flag = %d\n", foo_flag);
|
|
printf("bar_int = %d\n", bar_int);
|
|
printf("baz_flag = %s\n", baz_string);
|
|
arg_printusage (args, 5, "nothing here");
|
|
}
|
|
#endif
|