From 9620f76a210d9d8c1aaff25e99d6dc513f87e6e9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 04:23:56 +0200 Subject: Adding upstream version 1.8.27. Signed-off-by: Daniel Baumann --- plugins/sudoers/gmtoff.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 plugins/sudoers/gmtoff.c (limited to 'plugins/sudoers/gmtoff.c') diff --git a/plugins/sudoers/gmtoff.c b/plugins/sudoers/gmtoff.c new file mode 100644 index 0000000..2e62d9f --- /dev/null +++ b/plugins/sudoers/gmtoff.c @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2017 Todd C. Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include + +#include +#include +#include +#include + +#include "sudo_compat.h" +#include "sudoers_debug.h" +#include "parse.h" + +/* + * Returns the offset from GMT in seconds (algorithm taken from sendmail). + * Warning: clobbers the static storage used by localtime() and gmtime(). + */ +#ifdef HAVE_STRUCT_TM_TM_GMTOFF +long +get_gmtoff(time_t *clock) +{ + struct tm *local; + + local = localtime(clock); + return local->tm_gmtoff; +} +#else +long +get_gmtoff(time_t *clock) +{ + struct tm *gm, gmt, *local; + long offset; + + if ((gm = gmtime(clock)) == NULL) + return 0; + gmt = *gm; + if ((local = localtime(clock)) == NULL) + return 0; + + offset = (local->tm_sec - gmt.tm_sec) + + ((local->tm_min - gmt.tm_min) * 60) + + ((local->tm_hour - gmt.tm_hour) * 3600); + + /* Timezone may cause year rollover to happen on a different day. */ + if (local->tm_year < gmt.tm_year) + offset -= 24 * 3600; + else if (local->tm_year > gmt.tm_year) + offset -= 24 * 3600; + else if (local->tm_yday < gmt.tm_yday) + offset -= 24 * 3600; + else if (local->tm_yday > gmt.tm_yday) + offset += 24 * 3600; + + return offset; +} +#endif /* HAVE_TM_GMTOFF */ -- cgit v1.2.3