Fix compilation when OpenSSL has no ENGINE support

[tinc] / src / tincd.c

diff --git a/src/tincd.c b/src/tincd.c
index bc04f5f..bdac0c9 100644 (file)
--- a/src/tincd.c
+++ b/src/tincd.c
@@ -37,7 +37,9 @@
 #include <openssl/rsa.h>
 #include <openssl/pem.h>
 #include <openssl/evp.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 #ifdef HAVE_LZO
 #include LZO1X_H
@@ -434,7 +436,10 @@ static bool keygen(int bits) {
        BN_GENCB_set(cb, indicator, NULL);
 
        rsa_key = RSA_new();
-       BN_hex2bn(&e, "10001");
+
+       if(BN_hex2bn(&e, "10001") == 0) {
+               abort();
+       }
 
        if(!rsa_key || !e) {
                abort();
@@ -559,25 +564,11 @@ static void make_names(void) {
 }
 
 static void free_names() {
-       if(identname) {
-               free(identname);
-       }
-
-       if(netname) {
-               free(netname);
-       }
-
-       if(pidfilename) {
-               free(pidfilename);
-       }
-
-       if(logfilename) {
-               free(logfilename);
-       }
-
-       if(confbase) {
-               free(confbase);
-       }
+       free(identname);
+       free(netname);
+       free(pidfilename);
+       free(logfilename);
+       free(confbase);
 }
 
 static bool drop_privs() {
@@ -696,12 +687,10 @@ int main(int argc, char **argv) {
 
        init_configuration(&config_tree);
 
-       /* Slllluuuuuuurrrrp! */
-
-       RAND_load_file("/dev/urandom", 1024);
-
+#ifndef OPENSSL_NO_ENGINE
        ENGINE_load_builtin_engines();
        ENGINE_register_all_complete();
+#endif
 
        OpenSSL_add_all_algorithms();
 
@@ -824,7 +813,9 @@ end:
 
        EVP_cleanup();
        ERR_free_strings();
+#ifndef OPENSSL_NO_ENGINE
        ENGINE_cleanup();
+#endif
 
        exit_configuration(&config_tree);
        list_delete_list(cmdline_conf);