weston/shared/option-parser.c
Daniel Stone c228e23b05 configure.ac: Enable AC_USE_SYSTEM_EXTENSIONS
AC_USE_SYSTEM_EXTENSIONS enables _XOPEN_SOURCE, _GNU_SOURCE and similar
macros to expose the largest extent of functionality supported by the
underlying system.  This is required since these macros are often
limiting rather than merely additive, e.g. _XOPEN_SOURCE will actually
on some systems hide declarations which are not part of the X/Open spec.

Since this goes into config.h rather than the command line, ensure all
source is consistently including config.h before anything else,
including system libraries.  This doesn't need to be guarded by a
HAVE_CONFIG_H ifdef, which was only ever a hangover from the X.Org
modular transition.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>

[pq: rebased and converted more files]
2013-06-05 01:16:34 -04:00

86 lines
2.6 KiB
C

/*
* Copyright © 2012 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, 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.
*/
#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "config-parser.h"
static void
handle_option(const struct weston_option *option, char *value)
{
switch (option->type) {
case WESTON_OPTION_INTEGER:
* (int32_t *) option->data = strtol(value, NULL, 0);
return;
case WESTON_OPTION_UNSIGNED_INTEGER:
* (uint32_t *) option->data = strtoul(value, NULL, 0);
return;
case WESTON_OPTION_STRING:
* (char **) option->data = strdup(value);
return;
case WESTON_OPTION_BOOLEAN:
* (int32_t *) option->data = 1;
return;
default:
assert(0);
}
}
int
parse_options(const struct weston_option *options,
int count, int *argc, char *argv[])
{
int i, j, k, len = 0;
for (i = 1, j = 1; i < *argc; i++) {
for (k = 0; k < count; k++) {
if (options[k].name)
len = strlen(options[k].name);
if (options[k].name &&
argv[i][0] == '-' &&
argv[i][1] == '-' &&
strncmp(options[k].name, &argv[i][2], len) == 0 &&
(argv[i][len + 2] == '=' || argv[i][len + 2] == '\0')) {
handle_option(&options[k], &argv[i][len + 3]);
break;
} else if (options[k].short_name &&
argv[i][0] == '-' &&
options[k].short_name == argv[i][1]) {
handle_option(&options[k], &argv[i][2]);
break;
}
}
if (k == count)
argv[j++] = argv[i];
}
argv[j] = NULL;
*argc = j;
return j;
}