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-rw-r--r--lib/sslgen.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/sslgen.c b/lib/sslgen.c
index abb628d90..96582d3ae 100644
--- a/lib/sslgen.c
+++ b/lib/sslgen.c
@@ -165,6 +165,39 @@ void Curl_free_ssl_config(struct ssl_config_data* sslc)
#ifdef USE_SSL
+/* SSL 'backend' compile-time sanity checks */
+#if !defined(curlssl_init)
+# error "SSL backend lacks definition for curlssl_init"
+#elif !defined(curlssl_cleanup)
+# error "SSL backend lacks definition for curlssl_cleanup"
+#elif !defined(curlssl_connect) && !defined(curlssl_connect_nonblocking)
+# error "SSL backend lacks curlssl_connect or curlssl_connect_nonblocking"
+#elif !defined(curlssl_session_free)
+# error "SSL backend lacks definition for curlssl_session_free"
+#elif !defined(curlssl_close_all)
+# error "SSL backend lacks definition for curlssl_close_all"
+#elif !defined(curlssl_close)
+# error "SSL backend lacks definition for curlssl_close"
+#elif !defined(curlssl_shutdown)
+# error "SSL backend lacks definition for curlssl_shutdown"
+#elif !defined(curlssl_set_engine)
+# error "SSL backend lacks definition for curlssl_set_engine"
+#elif !defined(curlssl_set_engine_default)
+# error "SSL backend lacks definition for curlssl_set_engine_default"
+#elif !defined(curlssl_engines_list)
+# error "SSL backend lacks definition for curlssl_engines_list"
+#elif !defined(curlssl_version)
+# error "SSL backend lacks definition for curlssl_version"
+#elif !defined(curlssl_check_cxn)
+# error "SSL backend lacks definition for curlssl_check_cxn"
+#elif !defined(curlssl_data_pending)
+# error "SSL backend lacks definition for curlssl_data_pending"
+#elif !defined(curlssl_random)
+# error "SSL backend lacks definition for curlssl_random"
+#elif !defined(curlssl_md5sum)
+# error "SSL backend lacks definition for curlssl_md5sum"
+#endif
+
/* "global" init done? */
static bool init_ssl=FALSE;