Fix command-line '-o' option for host configuration

This fixes a regression introduced by commit 667b1ba while refactoring option
parsing code.

diff --git a/src/conf.c b/src/conf.c
index 0727953127e141ac633fc1e8e79bbaa911ab4b95..f55fa82b1bda3845c0e5cefd38353e4b4e145366 100644 (file)
--- a/src/conf.c
+++ b/src/conf.c
@@ -342,18 +342,29 @@ void read_config_options(avl_tree_t *config_tree, const char *prefix) {
        size_t prefix_len = prefix ? strlen(prefix) : 0;
 
        for(node = cmdline_conf->tail; node; node = next) {
-               config_t *cfg = (config_t *)node->data;
+               config_t *orig_cfg, *cfg = (config_t *)node->data;
                next = node->prev;
 
-               if(!prefix && strchr(cfg->variable, '.'))
-                       continue;
-
-               if(prefix && (strncmp(prefix, cfg->variable, prefix_len) || cfg->variable[prefix_len] != '.'))
-                       continue;
-
+               if(!prefix) {
+                       if(strchr(cfg->variable, '.'))
+                               continue;
+                       node->data = NULL;
+                       list_unlink_node(cmdline_conf, node);
+               } else {
+                       if(strncmp(prefix, cfg->variable, prefix_len) ||
+                          cfg->variable[prefix_len] != '.')
+                               continue;
+                       /* Because host configuration is parsed again when
+                          reconnecting, nodes must not be freed when a prefix
+                          is given. */
+                       orig_cfg = cfg;
+                       cfg = new_config();
+                       cfg->variable = xstrdup(orig_cfg->variable + prefix_len + 1);
+                       cfg->value = xstrdup(orig_cfg->value);
+                       cfg->file = NULL;
+                       cfg->line = orig_cfg->line;
+               }
                config_add(config_tree, cfg);
-               node->data = NULL;
-               list_unlink_node(cmdline_conf, node);
        }
 }