wget: attempt to negotiate encrypted data ftps stream ("PROT P")

function                                             old     new   delta
wget_main                                           2382    2422     +40

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/networking/wget.c b/networking/wget.c
index 7ca4bfb33a74eda4472a75cea9d474cbeecde882..633dabb574753bde28d09c43c2a6d77f7778fe8f 100644 (file)
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -806,9 +806,13 @@ static FILE* prepare_ftp_session(FILE **dfpp, struct host_info *target, len_and_
 
        *dfpp = open_socket(lsa);
 
-       //For encrypted data, need to send "PROT P" and get "200 PROT now Private" response first
-       //Without it (or with "PROT C"), data is sent unencrypted
-       //spawn_ssl_client(target->host, fileno(*dfpp), /*flags*/ 0);
+#if ENABLE_FEATURE_WGET_HTTPS
+       /* "PROT P" enables encryption of data stream.
+        * Without it (or with "PROT C"), data is sent unencrypted.
+        */
+       if (ftpcmd("PROT P", NULL, sfp) == 200)
+               spawn_ssl_client(target->host, fileno(*dfpp), /*flags*/ 0);
+#endif
 
        if (G.beg_range != 0) {
                sprintf(G.wget_buf, "REST %"OFF_FMT"u", G.beg_range);