1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 /* a small program to test the tm_zone setting in Bionic */ 29 #include <time.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 33 int main( void ) 34 { 35 #ifndef TM_ZONE 36 fprintf(stderr, "TM_ZONE is not defined in <time.h> !!\n" ); 37 return 1; 38 #else 39 const char* tz = getenv("TZ"); 40 time_t now = time(NULL); 41 struct tm tm0; 42 struct tm* tm; 43 44 if (tz) { 45 printf( "TZ set to '%s'\n", tz ); 46 } else 47 printf( "TZ is not defined\n" ); 48 49 tm = localtime_r( &now, &tm0 ); 50 printf( "localtime_r() returns timezone abbreviation '%s'\n", tm->TM_ZONE ? tm->TM_ZONE : "<NULL POINTER>" ); 51 printf( "tzname[0] is '%s'\n", tzname[0] ? tzname[0] : "<NULL POINTER>" ); 52 printf( "tzname[1] is '%s'\n", tzname[1] ? tzname[1] : "<NULL POINTER>" ); 53 #endif 54 return 0; 55 } 56
