force C function definitions

vlib/http/backend_nix.v

@@ -4,7 +4,7 @@
 
 module http
 
-import strings 
+import strings
 
 // On linux, prefer a localy build openssl, because it is
 // much more likely for it to be newer, than the system
@@ -24,67 +24,87 @@ import strings
 #include <openssl/ssl.h>
 
 struct C.SSL {
- 
-} 
+
+}
+
+fn C.SSL_library_init()
+fn C.TLSv1_2_method() voidptr
+fn C.SSL_CTX_set_options()
+fn C.SSL_CTX_new() voidptr
+fn C.SSL_CTX_set_verify_depth()
+fn C.SSL_CTX_load_verify_locations() int
+fn C.BIO_new_ssl_connect() voidptr
+fn C.BIO_set_conn_hostname() int
+fn C.BIO_get_ssl()
+fn C.SSL_set_cipher_list() int
+fn C.BIO_do_connect() int
+fn C.BIO_do_handshake() int
+fn C.SSL_get_peer_certificate() int
+fn C.SSL_get_verify_result() int
+fn C.SSL_set_tlsext_host_name() int
+fn C.BIO_puts()
+fn C.BIO_read()
+fn C.BIO_free_all()
+fn C.SSL_CTX_free()
 
 fn init() int {
-	C.SSL_library_init() 
+	C.SSL_library_init()
 	return 1
 }
 
 fn (req &Request) ssl_do(port int, method, host_name, path string) ?Response {
-	//ssl_method := C.SSLv23_method() 
-	ssl_method := C.TLSv1_2_method() 
-	if isnil(method) { 
-	} 
-	ctx := C.SSL_CTX_new(ssl_method) 
-	if isnil(ctx) { 
-	} 
-	C.SSL_CTX_set_verify_depth(ctx, 4) 
-	flags := C.SSL_OP_NO_SSLv2 | C.SSL_OP_NO_SSLv3 | C.SSL_OP_NO_COMPRESSION 
-	C.SSL_CTX_set_options(ctx, flags) 
-	mut res := C.SSL_CTX_load_verify_locations(ctx, 'random-org-chain.pem', 0) 
+	//ssl_method := C.SSLv23_method()
+	ssl_method := C.TLSv1_2_method()
+	if isnil(method) {
+	}
+	ctx := C.SSL_CTX_new(ssl_method)
+	if isnil(ctx) {
+	}
+	C.SSL_CTX_set_verify_depth(ctx, 4)
+	flags := C.SSL_OP_NO_SSLv2 | C.SSL_OP_NO_SSLv3 | C.SSL_OP_NO_COMPRESSION
+	C.SSL_CTX_set_options(ctx, flags)
+	mut res := C.SSL_CTX_load_verify_locations(ctx, 'random-org-chain.pem', 0)
 	if res != 1 {
-	} 
-	web := C.BIO_new_ssl_connect(ctx) 
-	if isnil(ctx) { 
-	} 
+	}
+	web := C.BIO_new_ssl_connect(ctx)
+	if isnil(ctx) {
+	}
 	addr := host_name + ':' + port.str()
-	res = C.BIO_set_conn_hostname(web, addr.str) 
+	res = C.BIO_set_conn_hostname(web, addr.str)
 	if res != 1 {
-	} 
-	ssl := &C.SSL{!} 
-	C.BIO_get_ssl(web, &ssl) 
-	if isnil(ssl) { 
-	} 
-	preferred_ciphers := 'HIGH:!aNULL:!kRSA:!PSK:!SRP:!MD5:!RC4' 
-	res = C.SSL_set_cipher_list(ssl, preferred_ciphers.str) 
+	}
+	ssl := &C.SSL{!}
+	C.BIO_get_ssl(web, &ssl)
+	if isnil(ssl) {
+	}
+	preferred_ciphers := 'HIGH:!aNULL:!kRSA:!PSK:!SRP:!MD5:!RC4'
+	res = C.SSL_set_cipher_list(ssl, preferred_ciphers.str)
 	if res != 1 {
-	} 
-	res = C.SSL_set_tlsext_host_name(ssl, host_name.str) 
-	res = C.BIO_do_connect(web) 
-	res = C.BIO_do_handshake(web) 
-	cert := C.SSL_get_peer_certificate(ssl) 
-	res = C.SSL_get_verify_result(ssl) 
+	}
+	res = C.SSL_set_tlsext_host_name(ssl, host_name.str)
+	res = C.BIO_do_connect(web)
+	res = C.BIO_do_handshake(web)
+	cert := C.SSL_get_peer_certificate(ssl)
+	res = C.SSL_get_verify_result(ssl)
 	///////
 	s := req.build_request_headers(method, host_name, path)
-	C.BIO_puts(web, s.str) 
-	mut sb := strings.new_builder(100) 
+	C.BIO_puts(web, s.str)
+	mut sb := strings.new_builder(100)
 	for {
-		buff := [1536]byte 
-		len := int(C.BIO_read(web, buff, 1536) ) 
-		if len > 0 { 
-			sb.write(tos(buff, len)) 
-		} 
+		buff := [1536]byte
+		len := int(C.BIO_read(web, buff, 1536) )
+		if len > 0 {
+			sb.write(tos(buff, len))
+		}
 		else {
-			break 
-		} 
-	} 
-	if !isnil(web) { 
+			break
+		}
+	}
+	if !isnil(web) {
 		C.BIO_free_all(web)
-	} 
-	if !isnil(ctx) { 
-		C.SSL_CTX_free(ctx) 
+	}
+	if !isnil(ctx) {
+		C.SSL_CTX_free(ctx)
 	}
 
 	return parse_response(sb.str())