diff options
Diffstat (limited to 'REORG.TODO/sysdeps/posix/gettimeofday.c')
-rw-r--r-- | REORG.TODO/sysdeps/posix/gettimeofday.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/posix/gettimeofday.c b/REORG.TODO/sysdeps/posix/gettimeofday.c new file mode 100644 index 0000000000..41a8217fd1 --- /dev/null +++ b/REORG.TODO/sysdeps/posix/gettimeofday.c @@ -0,0 +1,67 @@ +/* Copyright (C) 1991-2017 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 + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <time.h> +#include <sys/time.h> + +/* Get the current time of day and timezone information, + putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled. + Returns 0 on success, -1 on errors. */ +int +__gettimeofday (struct timeval *tv, struct timezone *tz) +{ + if (tv == NULL) + { + __set_errno (EINVAL); + return -1; + } + + tv->tv_sec = (long int) time ((time_t *) NULL); + tv->tv_usec = 0L; + + if (tz != NULL) + { + const time_t timer = tv->tv_sec; + struct tm tm; + const struct tm *tmp; + + const long int save_timezone = __timezone; + const long int save_daylight = __daylight; + char *save_tzname[2]; + save_tzname[0] = __tzname[0]; + save_tzname[1] = __tzname[1]; + + tmp = localtime_r (&timer, &tm); + + tz->tz_minuteswest = __timezone / 60; + tz->tz_dsttime = __daylight; + + __timezone = save_timezone; + __daylight = save_daylight; + __tzname[0] = save_tzname[0]; + __tzname[1] = save_tzname[1]; + + if (tmp == NULL) + return -1; + } + + return 0; +} +libc_hidden_def (__gettimeofday) +weak_alias (__gettimeofday, gettimeofday) +libc_hidden_weak (gettimeofday) |