1 /* 2 * Copyright (c) 2015 Dmitry V. Levin <ldv (at) altlinux.org> 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <stdio.h> 29 #include <stdint.h> 30 #include <unistd.h> 31 #include <sys/time.h> 32 #include <sys/syscall.h> 33 34 int 35 main(void) 36 { 37 struct { 38 struct timeval tv; 39 uint32_t pad0[2]; 40 struct timezone tz; 41 uint32_t pad1[2]; 42 } t = { 43 .pad0 = { 0xdeadbeef, 0xbadc0ded }, 44 .pad1 = { 0xdeadbeef, 0xbadc0ded } 45 }; 46 47 if (syscall(__NR_gettimeofday, &t.tv, NULL)) 48 return 77; 49 printf("gettimeofday({%jd, %jd}, NULL) = 0\n", 50 (intmax_t) t.tv.tv_sec, (intmax_t) t.tv.tv_usec); 51 52 if (syscall(__NR_gettimeofday, &t.tv, &t.tz)) 53 return 77; 54 printf("gettimeofday({%jd, %jd}" 55 ", {tz_minuteswest=%d, tz_dsttime=%d}) = 0\n", 56 (intmax_t) t.tv.tv_sec, (intmax_t) t.tv.tv_usec, 57 t.tz.tz_minuteswest, t.tz.tz_dsttime); 58 59 t.tv.tv_sec = -1; 60 t.tv.tv_usec = 1000000000; 61 if (!settimeofday(&t.tv, &t.tz)) 62 return 77; 63 printf("settimeofday({%jd, %jd}" 64 ", {tz_minuteswest=%d, tz_dsttime=%d})" 65 " = -1 EINVAL (Invalid argument)\n", 66 (intmax_t) t.tv.tv_sec, (intmax_t) t.tv.tv_usec, 67 t.tz.tz_minuteswest, t.tz.tz_dsttime); 68 69 puts("+++ exited with 0 +++"); 70 return 0; 71 } 72
