Jon Lund Steffensen
e4034ba27d
This should fix a bug where command line options for the "manual" location provider cannot override the config file. To keep compatability with previous versions the command line parser will still special case parsing "-l LAT:LON" and set the correct options in "manual".
112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/* location-manual.c -- Manual location provider source
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This file is part of Redshift.
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Redshift is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Redshift is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Redshift. If not, see <http://www.gnu.org/licenses/>.
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Copyright (c) 2010 Jon Lund Steffensen <jonlst@gmail.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <errno.h>
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#include "location-manual.h"
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#ifdef ENABLE_NLS
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# include <libintl.h>
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# define _(s) gettext(s)
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#else
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# define _(s) s
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#endif
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int
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location_manual_init(location_manual_state_t *state)
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{
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state->lat = NAN;
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state->lon = NAN;
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return 0;
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}
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int
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location_manual_start(location_manual_state_t *state)
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{
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/* Latitude and longitude must be set */
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if (isnan(state->lat) || isnan(state->lon)) {
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fputs(_("Latitude and longitude must be set.\n"), stderr);
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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void
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location_manual_free(location_manual_state_t *state)
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{
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}
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void
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location_manual_print_help(FILE *f)
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{
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fputs(_("Specify location manually.\n"), f);
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fputs("\n", f);
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/* TRANSLATORS: Manual location help output
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left column must not be translated */
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fputs(_(" lat=N\t\tLatitude\n"
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" lon=N\t\tLongitude\n"), f);
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fputs("\n", f);
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fputs(_("Both values are expected to be floating point numbers,\n"
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"negative values representing west / south, respectively.\n"), f);
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fputs("\n", f);
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}
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int
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location_manual_set_option(location_manual_state_t *state, const char *key,
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const char *value)
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{
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/* Parse float value */
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char *end;
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errno = 0;
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float v = strtof(value, &end);
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if (errno != 0 || *end != '\0') {
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fputs(_("Malformed argument.\n"), stderr);
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return -1;
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}
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if (strcasecmp(key, "lat") == 0) {
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state->lat = v;
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} else if (strcasecmp(key, "lon") == 0) {
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state->lon = v;
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} else {
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fprintf(stderr, _("Unknown method parameter: `%s'.\n"), key);
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return -1;
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}
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return 0;
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}
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int
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location_manual_get_location(location_manual_state_t *state, float *lat,
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float *lon)
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{
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*lat = state->lat;
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*lon = state->lon;
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return 0;
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}
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