options: check for features for some options

Some options, such as the automatic decompression and some SSL related
ones now will bail out if the underlying libcurl doesn't have support
for the particular feature needed.

diff --git a/src/main.c b/src/main.c
index 95b47ea3a27e5ee87ee8130eccc9ff95ff66f34e..8a942de077d4b5cbd52f2a1d5e073db6462356d1 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -2116,6 +2116,8 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
       break;
 
       case 'j': /* --compressed */
+        if(toggle && !(curlinfo->features & CURL_VERSION_LIBZ))
+          return PARAM_LIBCURL_DOESNT_SUPPORT;
         config->encoding = toggle;
         break;
 
@@ -2260,6 +2262,8 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
     case '$': /* more options without a short option */
       switch(subletter) {
       case 'a': /* --ftp-ssl */
+        if(toggle && !(curlinfo->features & CURL_VERSION_SSL))
+          return PARAM_LIBCURL_DOESNT_SUPPORT;
         config->ftp_ssl = toggle;
         break;
       case 'b': /* --ftp-pasv */
@@ -2351,12 +2355,16 @@ static ParameterError getparameter(char *flag, /* f or -long-flag */
         GetStr(&config->ftp_alternative_to_user, nextarg);
         break;
       case 'v': /* --ftp-ssl-reqd */
+        if(toggle && !(curlinfo->features & CURL_VERSION_SSL))
+          return PARAM_LIBCURL_DOESNT_SUPPORT;
         config->ftp_ssl_reqd = toggle;
         break;
       case 'w': /* --no-sessionid */
         config->disable_sessionid = (bool)(!toggle);
         break;
       case 'x': /* --ftp-ssl-control */
+        if(toggle && !(curlinfo->features & CURL_VERSION_SSL))
+          return PARAM_LIBCURL_DOESNT_SUPPORT;
         config->ftp_ssl_control = toggle;
         break;
       case 'y': /* --ftp-ssl-ccc */