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evutil_time: detect and use _gmtime64_s()/_gmtime64()

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(cherry picked from commit 148d12ad31b03a813f4ffd9df14a85392aa74130)
This commit is contained in:
yuangongji 2019-09-19 15:24:51 +08:00 committed by Azat Khuzhin
parent c169bdcbb2
commit f4a6152c3b
4 changed files with 34 additions and 5 deletions
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7
CMakeLists.txt
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@ -524,6 +524,13 @@ if(NOT WIN32)
CHECK_FUNCTION_EXISTS_EX(select EVENT__HAVE_SELECT)
endif()
if(WIN32)
CHECK_FUNCTION_EXISTS_EX(_gmtime64_s EVENT__HAVE__GMTIME64_S)
if (NOT EVENT__HAVE__GMTIME64_S)
CHECK_FUNCTION_EXISTS_EX(_gmtime64 EVENT__HAVE__GMTIME64)
endif()
endif()
CHECK_TYPE_SIZE("uint8_t" EVENT__HAVE_UINT8_T)
CHECK_TYPE_SIZE("uint16_t" EVENT__HAVE_UINT16_T)
CHECK_TYPE_SIZE("uint32_t" EVENT__HAVE_UINT32_T)

6
configure.ac
View File

@ -393,6 +393,12 @@ AC_CHECK_FUNCS([ \
getservbyname \
getrandom \
])
AC_CHECK_FUNCS(_gmtime64_s, [have__gmtime64_s=yes], )
if test "x$have__gmtime64_s" != "xyes"; then
AC_CHECK_FUNCS(_gmtime64)
fi
AM_CONDITIONAL(STRLCPY_IMPL, [test x"$ac_cv_func_strlcpy" = xno])
AC_CACHE_CHECK(

6
event-config.h.cmake
View File

@ -289,6 +289,12 @@
/* Define to 1 if you have the `strtoll' function. */
#cmakedefine EVENT__HAVE_STRTOLL 1
/* Define to 1 if you have the `_gmtime64_s' function. */
#cmakedefine EVENT__HAVE__GMTIME64_S 1
/* Define to 1 if you have the `_gmtime64' function. */
#cmakedefine EVENT__HAVE__GMTIME64 1
/* Define to 1 if the system has the type `struct addrinfo'. */
#cmakedefine EVENT__HAVE_STRUCT_ADDRINFO 1

20
evutil_time.c
View File

@ -158,18 +158,28 @@ evutil_date_rfc1123(char *date, const size_t datelen, const struct tm *tm)
time_t t = time(NULL);
#ifndef _WIN32
#if defined(EVENT__HAVE__GMTIME64_S) || !defined(_WIN32)
struct tm sys;
#endif
/* If `tm` is null, set system's current time. */
if (tm == NULL) {
#ifdef _WIN32
/** TODO: detect _gmtime64()/_gmtime64_s() */
tm = gmtime(&t);
#else
#if !defined(_WIN32)
gmtime_r(&t, &sys);
tm = &sys;
/** detect _gmtime64()/_gmtime64_s() */
#elif defined(EVENT__HAVE__GMTIME64_S)
errno_t err;
err = _gmtime64_s(&sys, &t);
if (err) {
event_errx(1, "Invalid argument to _gmtime64_s");
} else {
tm = &sys;
}
#elif defined(EVENT__HAVE__GMTIME64)
tm = _gmtime64(&t);
#else
tm = gmtime(&t);
#endif
}