/* Copyright (C) 1995-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include #define MAX_SEC (INT_MAX / 1000000L - 2) #define MIN_SEC (INT_MIN / 1000000L + 2) int __adjtime64 (const struct __timeval64 *itv, struct __timeval64 *otv) { struct __timex64 tntx; if (itv) { struct __timeval64 tmp; /* We will do some check here. */ tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L; tmp.tv_usec = itv->tv_usec % 1000000L; if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC) return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L; tntx.modes = ADJ_OFFSET_SINGLESHOT; } else tntx.modes = ADJ_OFFSET_SS_READ; if (__glibc_unlikely (__clock_adjtime64 (CLOCK_REALTIME, &tntx) < 0)) return -1; if (otv) { if (tntx.offset < 0) { otv->tv_usec = -(-tntx.offset % 1000000); otv->tv_sec = -(-tntx.offset / 1000000); } else { otv->tv_usec = tntx.offset % 1000000; otv->tv_sec = tntx.offset / 1000000; } } return 0; } #if __TIMESIZE != 64 libc_hidden_def (__adjtime64) int __adjtime (const struct timeval *itv, struct timeval *otv) { struct __timeval64 itv64, *pitv64 = NULL; struct __timeval64 otv64; int retval; if (itv != NULL) { itv64 = valid_timeval_to_timeval64 (*itv); pitv64 = &itv64; } retval = __adjtime64 (pitv64, otv != NULL ? &otv64 : NULL); if (otv != NULL) *otv = valid_timeval64_to_timeval (otv64); return retval; } #endif #ifdef VERSION_adjtime weak_alias (__adjtime, __wadjtime); default_symbol_version (__wadjtime, adjtime, VERSION_adjtime); #else weak_alias (__adjtime, adjtime) #endif