| 1 | /************************************************* |
| 2 | * Exim - an Internet mail transport agent * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* Copyright (c) Jeremy Harris 2018 */ |
| 6 | /* See the file NOTICE for conditions of use and distribution. */ |
| 7 | |
| 8 | /* SHA routine selection */ |
| 9 | |
| 10 | #include "exim.h" |
| 11 | |
| 12 | /* Please be aware that pulling in extra headers which are not in the system |
| 13 | * includes may require careful juggling of CFLAGS in |
| 14 | * scripts/Configure-Makefile -- that logic should be kept in sync with this. |
| 15 | * In particular, building with just something like USE_OPENSSL_PC=openssl |
| 16 | * and not massaging CFLAGS in Local/Makefile is fully supported. |
| 17 | */ |
| 18 | |
| 19 | #ifdef SUPPORT_TLS |
| 20 | |
| 21 | # define EXIM_HAVE_SHA2 |
| 22 | |
| 23 | # ifdef USE_GNUTLS |
| 24 | # include <gnutls/gnutls.h> |
| 25 | |
| 26 | # if GNUTLS_VERSION_NUMBER >= 0x020a00 |
| 27 | # define SHA_GNUTLS |
| 28 | # if GNUTLS_VERSION_NUMBER >= 0x030500 |
| 29 | # define EXIM_HAVE_SHA3 /*MMMM*/ |
| 30 | # endif |
| 31 | # else |
| 32 | # define SHA_GCRYPT |
| 33 | # endif |
| 34 | |
| 35 | # else |
| 36 | # define SHA_OPENSSL |
| 37 | # include <openssl/ssl.h> |
| 38 | # if (OPENSSL_VERSION_NUMBER >= 0x10101000L) && !defined(LIBRESSL_VERSION_NUMBER) |
| 39 | # define EXIM_HAVE_SHA3 |
| 40 | # endif |
| 41 | # endif |
| 42 | |
| 43 | #else |
| 44 | # define SHA_NATIVE |
| 45 | #endif |
| 46 | |