mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-07-21 10:44:25 +00:00
3011493e9b
Fail on trailing text after numbers, such as --width=100mm Fail on any text after booleans, such as --flag=false Also fixed reading of memory after the null terminator of a long option with no = sign in it. [Pekka Paalanen: some whitespace style fixes.] Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
127 lines
3 KiB
C
127 lines
3 KiB
C
/*
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* Copyright © 2012 Kristian Høgsberg
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "config-parser.h"
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static int
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handle_option(const struct weston_option *option, char *value)
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{
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char* p;
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switch (option->type) {
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case WESTON_OPTION_INTEGER:
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* (int32_t *) option->data = strtol(value, &p, 0);
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return *value && !*p;
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case WESTON_OPTION_UNSIGNED_INTEGER:
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* (uint32_t *) option->data = strtoul(value, &p, 0);
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return *value && !*p;
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case WESTON_OPTION_STRING:
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* (char **) option->data = strdup(value);
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return 1;
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default:
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assert(0);
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}
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}
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static int
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long_option(const struct weston_option *options, int count, char *arg)
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{
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int k, len;
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for (k = 0; k < count; k++) {
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if (!options[k].name)
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continue;
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len = strlen(options[k].name);
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if (strncmp(options[k].name, arg + 2, len) != 0)
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continue;
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if (options[k].type == WESTON_OPTION_BOOLEAN) {
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if (!arg[len + 2]) {
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* (int32_t *) options[k].data = 1;
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return 1;
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}
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} else if (arg[len+2] == '=') {
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return handle_option(options + k, arg + len + 3);
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}
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}
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return 0;
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}
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static int
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short_option(const struct weston_option *options, int count, char *arg)
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{
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int k;
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if (!arg[1])
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return 0;
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for (k = 0; k < count; k++) {
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if (options[k].short_name != arg[1])
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continue;
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if (options[k].type == WESTON_OPTION_BOOLEAN) {
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if (!arg[2]) {
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* (int32_t *) options[k].data = 1;
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return 1;
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}
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} else {
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return handle_option(options + k, arg + 2);
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}
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}
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return 0;
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}
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int
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parse_options(const struct weston_option *options,
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int count, int *argc, char *argv[])
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{
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int i, j;
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for (i = 1, j = 1; i < *argc; i++) {
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if (argv[i][0] == '-') {
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if (argv[i][1] == '-') {
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if (long_option(options, count, argv[i]))
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continue;
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} else if (short_option(options, count, argv[i]))
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continue;
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}
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argv[j++] = argv[i];
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}
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argv[j] = NULL;
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*argc = j;
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return j;
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}
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