2012-03-12 01:05:57 +00:00
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/*
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* Copyright © 2012 Kristian Høgsberg
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*
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2015-06-11 21:20:17 +00:00
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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2012-03-12 01:05:57 +00:00
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*
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2015-06-11 21:20:17 +00:00
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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2012-03-12 01:05:57 +00:00
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*/
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2013-05-22 15:03:19 +00:00
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#include "config.h"
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2017-05-24 20:23:15 +00:00
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#include <stdbool.h>
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2012-03-12 01:05:57 +00:00
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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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2016-08-04 00:40:50 +00:00
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#include <errno.h>
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2012-03-12 01:05:57 +00:00
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2019-04-04 11:27:31 +00:00
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#include <libweston/config-parser.h>
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2016-08-04 00:40:52 +00:00
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#include "string-helpers.h"
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2012-03-12 01:05:57 +00:00
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2017-05-24 20:23:15 +00:00
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static bool
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2012-03-12 01:05:57 +00:00
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handle_option(const struct weston_option *option, char *value)
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{
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2014-08-20 01:13:09 +00:00
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char* p;
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2012-03-12 01:05:57 +00:00
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switch (option->type) {
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case WESTON_OPTION_INTEGER:
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2016-08-04 00:40:52 +00:00
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if (!safe_strtoint(value, option->data))
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2017-05-24 20:23:15 +00:00
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return false;
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return true;
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2012-03-12 01:05:57 +00:00
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case WESTON_OPTION_UNSIGNED_INTEGER:
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2016-08-04 00:40:50 +00:00
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errno = 0;
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option-parser: Require integer option string values to be base-10
The third arg to strtol() specifies the base to assume for the number.
When 0 is passed, as is currently done in option-parser.c, hexadecimal
and octal numbers are permitted and automatically detected and
converted.
In weston and the weston clients and tests using option-parser.c, the
options are all things that can be expected to be specified in base 10:
widths, heights, counts, scales, font sizes, ports, ttys, connectors,
etc. The subsurfaces client uses two modes, limited to values 0 and 1
only. The zuc testsuite has a --random parameter for specifying a seed,
which is the only option where using hexadecimal or octal numbers might
conceivably happen.
The benefit of limiting this to base-10 is to eliminate surprises when
parsing numbers from the command line. Also, by making the code
consistent with other usages of strtol/strtoul, it may make it possible
to factor out the common code in the future.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
2016-07-09 00:44:10 +00:00
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* (uint32_t *) option->data = strtoul(value, &p, 10);
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2016-08-04 00:40:50 +00:00
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if (errno != 0 || p == value || *p != '\0')
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2017-05-24 20:23:15 +00:00
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return false;
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return true;
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2012-03-12 01:05:57 +00:00
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case WESTON_OPTION_STRING:
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* (char **) option->data = strdup(value);
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2017-05-24 20:23:15 +00:00
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return true;
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2012-03-12 01:05:57 +00:00
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default:
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assert(0);
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2019-08-06 17:06:02 +00:00
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return false;
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2012-03-12 01:05:57 +00:00
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}
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}
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2017-05-24 20:23:15 +00:00
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static bool
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2014-08-20 01:13:09 +00:00
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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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2019-11-26 00:32:22 +00:00
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* (bool *) options[k].data = true;
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2014-08-20 01:13:09 +00:00
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2017-05-24 20:23:15 +00:00
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return true;
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2014-08-20 01:13:09 +00:00
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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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2017-05-24 20:23:15 +00:00
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return false;
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2014-08-20 01:13:09 +00:00
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}
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2017-05-24 20:23:15 +00:00
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static bool
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2017-05-08 16:47:55 +00:00
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long_option_with_arg(const struct weston_option *options, int count, char *arg,
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char *param)
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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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/* Since long_option() should handle all booleans, we should
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* never reach this
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*/
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assert(options[k].type != WESTON_OPTION_BOOLEAN);
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return handle_option(options + k, param);
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}
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2017-05-24 20:23:15 +00:00
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return false;
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2017-05-08 16:47:55 +00:00
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}
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2017-05-24 20:23:15 +00:00
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static bool
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2014-08-20 01:13:09 +00:00
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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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2017-05-24 20:23:15 +00:00
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return false;
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2014-08-20 01:13:09 +00:00
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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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2019-11-26 00:32:22 +00:00
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* (bool *) options[k].data = true;
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2014-08-20 01:13:09 +00:00
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2017-05-24 20:23:15 +00:00
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return true;
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2014-08-20 01:13:09 +00:00
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}
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2016-02-11 23:25:56 +00:00
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} else if (arg[2]) {
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2014-08-20 01:13:09 +00:00
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return handle_option(options + k, arg + 2);
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2016-02-11 23:25:56 +00:00
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} else {
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2017-05-24 20:23:15 +00:00
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return false;
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2014-08-20 01:13:09 +00:00
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}
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}
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2017-05-24 20:23:15 +00:00
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return false;
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2014-08-20 01:13:09 +00:00
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}
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2017-05-24 20:23:15 +00:00
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static bool
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2016-02-11 23:25:56 +00:00
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short_option_with_arg(const struct weston_option *options, int count, char *arg, char *param)
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{
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int k;
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if (!arg[1])
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2017-05-24 20:23:15 +00:00
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return false;
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2016-02-11 23:25:56 +00:00
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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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continue;
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return handle_option(options + k, param);
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}
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2017-05-24 20:23:15 +00:00
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return false;
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2016-02-11 23:25:56 +00:00
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}
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2012-03-12 01:05:57 +00:00
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int
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parse_options(const struct weston_option *options,
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2013-02-20 20:27:49 +00:00
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int count, int *argc, char *argv[])
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2012-03-12 01:05:57 +00:00
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{
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2014-08-20 01:13:09 +00:00
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int i, j;
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2023-10-21 19:59:00 +00:00
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int ignore_options = 0;
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2012-03-12 01:05:57 +00:00
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2013-02-20 20:27:49 +00:00
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for (i = 1, j = 1; i < *argc; i++) {
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2023-10-21 19:59:00 +00:00
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if (argv[i][0] == '-' && ignore_options == 0) {
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2014-08-20 01:13:09 +00:00
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if (argv[i][1] == '-') {
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2023-10-21 19:59:00 +00:00
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if (strlen(argv[i]) == 2) {
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/* '--' to ignore the remaining options */
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i--; /* reinsert the '--' entry */
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ignore_options = 1;
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continue;
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}
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2016-02-11 23:25:56 +00:00
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/* Long option, e.g. --foo or --foo=bar */
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2014-08-20 01:13:09 +00:00
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if (long_option(options, count, argv[i]))
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continue;
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2016-02-11 23:25:56 +00:00
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2017-05-08 16:47:55 +00:00
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/* ...also handle --foo bar */
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if (i + 1 < *argc &&
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long_option_with_arg(options, count,
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argv[i], argv[i+1])) {
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i++;
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continue;
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}
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2016-02-11 23:25:56 +00:00
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} else {
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/* Short option, e.g -f or -f42 */
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if (short_option(options, count, argv[i]))
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continue;
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/* ...also handle -f 42 */
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if (i+1 < *argc &&
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short_option_with_arg(options, count, argv[i], argv[i+1])) {
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i++;
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continue;
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}
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}
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2012-03-12 01:05:57 +00:00
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}
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2014-08-20 01:13:09 +00:00
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argv[j++] = argv[i];
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2012-03-12 01:05:57 +00:00
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}
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argv[j] = NULL;
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2013-02-20 20:27:49 +00:00
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*argc = j;
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2012-03-12 01:05:57 +00:00
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return j;
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}
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