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/* $Id$
 * $URL$
 *
 * time plugin
 *
of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ /* * exported functions: * * int plugin_init_time (void) * adds some handy time functions * */ #include "config.h" #include <time.h> #include <stdlib.h> #include <string.h> #include "debug.h" #include "plugin.h" static void my_time(RESULT * result) { double value = time(NULL); SetResult(&result, R_NUMBER, &value); } static void my_strftime(RESULT * result, RESULT * arg1, RESULT * arg2) { char value[256]; time_t t = R2N(arg2); value[0] = '\0'; strftime(value, sizeof(value), R2S(arg1), localtime(&t)); SetResult(&result, R_STRING, value); } static void my_stftime_tz(RESULT * result, RESULT * arg1, RESULT * arg2, RESULT * arg3) { char value[256] = ""; time_t t = R2N(arg2); char *tz = R2S(arg3); char *old_tz; old_tz = getenv("TZ"); /* * because the next setenv() call may overwrite that string, we * duplicate it here */ if (old_tz) { old_tz = strdup(old_tz); } setenv("TZ", tz, 1); tzset(); strftime(value, sizeof(value), R2S(arg1), localtime(&t)); if (old_tz) { setenv("TZ", old_tz, 1); } else { unsetenv("TZ"); } tzset(); free(old_tz); SetResult(&result, R_STRING, value); } int plugin_init_time(void) { /* register some basic time functions */ AddFunction("time", 0, my_time); AddFunction("strftime", 2, my_strftime); AddFunction("strftime_tz", 3, my_stftime_tz); return 0; } void plugin_exit_time(void) { /* empty */ }