From 0d47952611198ef6b1163f366dc03922d20b1475 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 09:42:04 +0200 Subject: Adding upstream version 7.94+git20230807.3be01efb1+dfsg. Signed-off-by: Daniel Baumann --- nbase/nbase_time.c | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 nbase/nbase_time.c (limited to 'nbase/nbase_time.c') diff --git a/nbase/nbase_time.c b/nbase/nbase_time.c new file mode 100644 index 0000000..eb1b902 --- /dev/null +++ b/nbase/nbase_time.c @@ -0,0 +1,215 @@ + +/*************************************************************************** + * nbase_time.c -- Some small time-related utility/compatibility * + * functions. * + * * + ***********************IMPORTANT NMAP LICENSE TERMS************************ + * + * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap + * Project"). Nmap is also a registered trademark of the Nmap Project. + * + * This program is distributed under the terms of the Nmap Public Source + * License (NPSL). The exact license text applying to a particular Nmap + * release or source code control revision is contained in the LICENSE + * file distributed with that version of Nmap or source code control + * revision. More Nmap copyright/legal information is available from + * https://nmap.org/book/man-legal.html, and further information on the + * NPSL license itself can be found at https://nmap.org/npsl/ . This + * header summarizes some key points from the Nmap license, but is no + * substitute for the actual license text. + * + * Nmap is generally free for end users to download and use themselves, + * including commercial use. It is available from https://nmap.org. + * + * The Nmap license generally prohibits companies from using and + * redistributing Nmap in commercial products, but we sell a special Nmap + * OEM Edition with a more permissive license and special features for + * this purpose. See https://nmap.org/oem/ + * + * If you have received a written Nmap license agreement or contract + * stating terms other than these (such as an Nmap OEM license), you may + * choose to use and redistribute Nmap under those terms instead. + * + * The official Nmap Windows builds include the Npcap software + * (https://npcap.com) for packet capture and transmission. It is under + * separate license terms which forbid redistribution without special + * permission. So the official Nmap Windows builds may not be redistributed + * without special permission (such as an Nmap OEM license). + * + * Source is provided to this software because we believe users have a + * right to know exactly what a program is going to do before they run it. + * This also allows you to audit the software for security holes. + * + * Source code also allows you to port Nmap to new platforms, fix bugs, and add + * new features. You are highly encouraged to submit your changes as a Github PR + * or by email to the dev@nmap.org mailing list for possible incorporation into + * the main distribution. Unless you specify otherwise, it is understood that + * you are offering us very broad rights to use your submissions as described in + * the Nmap Public Source License Contributor Agreement. This is important + * because we fund the project by selling licenses with various terms, and also + * because the inability to relicense code has caused devastating problems for + * other Free Software projects (such as KDE and NASM). + * + * The free version of Nmap 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. Warranties, + * indemnification and commercial support are all available through the + * Npcap OEM program--see https://nmap.org/oem/ + * + ***************************************************************************/ + +/* $Id$ */ + +#include "nbase.h" +#if HAVE_UNISTD_H +#include +#endif +#include +#ifdef WIN32 +#include +#include +#endif + +#ifndef HAVE_USLEEP +void usleep(unsigned long usec) { +#ifdef HAVE_NANOSLEEP +struct timespec ts; +ts.tv_sec = usec / 1000000; +ts.tv_nsec = (usec % 1000000) * 1000; +nanosleep(&ts, NULL); +#else /* Windows style */ + Sleep( usec / 1000 ); +#endif /* HAVE_NANOSLEEP */ +} +#endif + +/* Thread safe time stuff */ +#ifdef WIN32 +/* On Windows, use CRT function localtime_s: + * errno_t localtime_s( + * struct tm* const tmDest, + * time_t const* const sourceTime + * ); + */ +int n_localtime(const time_t *timer, struct tm *result) { + return localtime_s(result, timer); +} + +int n_gmtime(const time_t *timer, struct tm *result) { + return gmtime_s(result, timer); +} + +int n_ctime(char *buffer, size_t bufsz, const time_t *timer) { + return ctime_s(buffer, bufsz, timer); +} + +#else /* WIN32 */ + +#include +#ifdef HAVE_LOCALTIME_S +/* C11 localtime_s similar to Posix localtime_r, but with validity checking: + * struct tm *localtime_s(const time_t *restrict time, struct tm *restrict result); + */ +int n_localtime(const time_t *timer, struct tm *result) { + struct tm *tmp = localtime_s(timer, result); + if (!tmp) { + return errno; + } + return 0; +} + +int n_gmtime(const time_t *timer, struct tm *result) { + struct tm *tmp = gmtime_s(timer, result); + if (!tmp) { + return errno; + } + return 0; +} + +int n_ctime(char *buffer, size_t bufsz, const time_t *timer) { + return ctime_s(buffer, bufsz, timer); +} +#else +#ifdef HAVE_LOCALTIME_R +/* POSIX localtime_r thread-safe localtime function: + * struct tm *localtime_r(const time_t *timep, struct tm *result); + */ +int n_localtime(const time_t *timer, struct tm *result) { + struct tm *tmp = localtime_r(timer, result); + if (!tmp) { + return errno; + } + return 0; +} + +int n_gmtime(const time_t *timer, struct tm *result) { + struct tm *tmp = gmtime_r(timer, result); + if (!tmp) { + return errno; + } + return 0; +} + +int n_ctime(char *buffer, size_t bufsz, const time_t *timer) { + char *tmp = ctime_r(timer, buffer); + if (!tmp) { + return errno; + } + return 0; +} + +#else +/* No thread-safe alternatives. */ +// Using C99's one-line commments since LGTM.com does not recognize C-style +// block comments. This may cause problems, but only for very old systems +// without a C99-compatible compiler that do not have localtime_r or +// localtime_s +int n_localtime(const time_t *timer, struct tm *result) { + struct tm *tmp = localtime(timer); // lgtm[cpp/potentially-dangerous-function] + if (tmp) + *result = *tmp; + else + return errno; + return 0; +} + +int n_gmtime(const time_t *timer, struct tm *result) { + struct tm *tmp = gmtime(timer); // lgtm[cpp/potentially-dangerous-function] + if (tmp) + *result = *tmp; + else + return errno; + return 0; +} + +int n_ctime(char *buffer, size_t bufsz, const time_t *timer) { + char *tmp = ctime(timer); // lgtm[cpp/potentially-dangerous-function] + if (tmp) + Strncpy(buffer, tmp, bufsz); + else + return errno; + return 0; +} +#endif /* HAVE_LOCALTIME_R */ +#endif /* HAVE_LOCALTIME_S */ +#endif /* WIN32 */ + +#ifdef WIN32 +int gettimeofday(struct timeval *tv, struct timeval *tz) +{ + struct _timeb timebuffer; + + _ftime( &timebuffer ); + + tv->tv_sec = (long) timebuffer.time; + tv->tv_usec = timebuffer.millitm * 1000; + return 0; +}; + +unsigned int sleep(unsigned int seconds) +{ + Sleep(1000*seconds); + return(0); +}; +#endif /* WIN32 */ + -- cgit v1.2.3