Add posix_time.h from BoringSSL

This is prepares to expose some internal API as OPENSSL_tm_to_posix() and
OPENSSL_posix_to_tm(). They will be used in libtls and ocspcheck(8) to get
rid of the portability nightmare that is timegm().

Also fix the location of OPENSSL_gmtime() and OPENSSL_timegm() (this API
is not yet exposed). The former is from OpenSSL and surprisingly lives in
crypto.h, not asn1.h, and the latter is BoringSSL API and lives in the new
posix_time.h.

Initial diff from beck, this pulls in further upstream work after review
feedback.

ok jsing

1 files changed, 4 insertions, 0 deletions

diff --git a/src/lib/libcrypto/Symbols.namespace b/src/lib/libcrypto/Symbols.namespace
index 08f070e79c..62d6b5a3ad 100644
--- a/src/lib/libcrypto/Symbols.namespace
+++ b/src/lib/libcrypto/Symbols.namespace
@@ -2645,3 +2645,7 @@ _libre_i2d_DHparams
 _libre_DHparams_print_fp
 _libre_DHparams_print
 _libre_ERR_load_DH_strings
+_libre_OPENSSL_gmtime
+_libre_OPENSSL_timegm
+_libre_OPENSSL_posix_to_tm
+_libre_OPENSSL_tm_to_posix