cmake: Enable SMB for Windows builds

- Define USE_WIN32_CRYPTO by default. This enables SMB.

- Show whether SMB is enabled in the "Enabled features" output.

- Fix mingw compiler warning for call to CryptHashData by casting away
  const param. mingw CryptHashData prototype is wrong.

Closes https://github.com/curl/curl/pull/4717

3 files changed, 22 insertions, 6 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cb78921e1..3ef8d0e48 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -172,6 +172,7 @@ if(HTTP_ONLY)
   set(CURL_DISABLE_RTSP ON)
   set(CURL_DISABLE_POP3 ON)
   set(CURL_DISABLE_IMAP ON)
+  set(CURL_DISABLE_SMB ON)
   set(CURL_DISABLE_SMTP ON)
   set(CURL_DISABLE_GOPHER ON)
 endif()
@@ -412,6 +413,10 @@ if(USE_NGHTTP2)
   list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
 endif()
 
+if(WIN32)
+  set(USE_WIN32_CRYPTO ON)
+endif()
+
 if(NOT CURL_DISABLE_LDAP)
   if(WIN32)
     option(USE_WIN32_LDAP "Use Windows LDAP implementation" ON)
@@ -1199,6 +1204,14 @@ if(BUILD_TESTING)
   add_subdirectory(tests)
 endif()
 
+# NTLM support requires crypto function adaptions from various SSL libs
+# TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
+if(NOT CURL_DISABLE_CRYPTO_AUTH AND (USE_OPENSSL OR USE_WINDOWS_SSPI OR USE_DARWINSSL OR USE_MBEDTLS OR USE_WIN32_CRYPTO))
+  set(use_ntlm ON)
+else()
+  set(use_ntlm OFF)
+endif()
+
 # Helper to populate a list (_items) with a label when conditions (the remaining
 # args) are satisfied
 function(_add_if label)
@@ -1228,11 +1241,9 @@ _add_if("Kerberos"      NOT CURL_DISABLE_CRYPTO_AUTH AND
                         (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
 # NTLM support requires crypto function adaptions from various SSL libs
 # TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
-if(NOT CURL_DISABLE_CRYPTO_AUTH AND (USE_OPENSSL OR USE_WINDOWS_SSPI OR USE_SECTRANSP OR USE_MBEDTLS OR USE_NSS))
-  _add_if("NTLM"        1)
-  # TODO missing option (autoconf: --enable-ntlm-wb)
-  _add_if("NTLM_WB"     NOT CURL_DISABLE_HTTP AND NTLM_WB_ENABLED)
-endif()
+_add_if("NTLM"        use_ntlm)
+# TODO missing option (autoconf: --enable-ntlm-wb)
+_add_if("NTLM_WB"     use_ntlm AND NOT CURL_DISABLE_HTTP AND NTLM_WB_ENABLED)
 # TODO missing option (--enable-tls-srp), depends on GNUTLS_SRP/OPENSSL_SRP
 _add_if("TLS-SRP"       USE_TLS_SRP)
 # TODO option --with-nghttp2 tests for nghttp2 lib and nghttp2/nghttp2.h header
@@ -1261,6 +1272,8 @@ _add_if("POP3"          NOT CURL_DISABLE_POP3)
 _add_if("POP3S"         NOT CURL_DISABLE_POP3 AND SSL_ENABLED)
 _add_if("IMAP"          NOT CURL_DISABLE_IMAP)
 _add_if("IMAPS"         NOT CURL_DISABLE_IMAP AND SSL_ENABLED)
+_add_if("SMB"           NOT CURL_DISABLE_SMB AND use_ntlm)
+_add_if("SMBS"          NOT CURL_DISABLE_SMB AND SSL_ENABLED AND use_ntlm)
 _add_if("SMTP"          NOT CURL_DISABLE_SMTP)
 _add_if("SMTPS"         NOT CURL_DISABLE_SMTP AND SSL_ENABLED)
 _add_if("SCP"           USE_LIBSSH2)
diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index 2c3b6562d..1f6c3154f 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -73,6 +73,9 @@
 #define CURL_EXTERN_SYMBOL
 #endif
 
+/* Allow SMB to work on Windows */
+#cmakedefine USE_WIN32_CRYPTO
+
 /* Use Windows LDAP implementation */
 #cmakedefine USE_WIN32_LDAP 1
 
diff --git a/lib/md4.c b/lib/md4.c
index bbf897508..98de285ad 100644
--- a/lib/md4.c
+++ b/lib/md4.c
@@ -156,7 +156,7 @@ static void MD4_Init(MD4_CTX *ctx)
 
 static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
 {
-  CryptHashData(ctx->hHash, data, (unsigned int) size, 0);
+  CryptHashData(ctx->hHash, (BYTE *)data, (unsigned int) size, 0);
 }
 
 static void MD4_Final(unsigned char *result, MD4_CTX *ctx)