config: correctly break string for prefix filter

This if statement does the following:

1. Copy the value of "config prefix_filter"
2. Break the string at "/"
3. Save the number after / as prefix length
4. Convert the address before / into in6_addr

However the extraneous "=" broke the second step and inet_pton
failed with addresses with mask. This commit removes the = thus
fixes the feature.

Signed-off-by: Tian Hao <haotia@gmail.com>

diff --git a/src/config.c b/src/config.c
index b36afb1285556cbe3d7b51bd4eab78e997473c96..9ae8466991f7c8ec53b0bffcdd2a845a050d53b0 100644 (file)
--- a/src/config.c
+++ b/src/config.c
@@ -730,14 +730,15 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                char *astr = malloc(strlen(str) + 1);
                char *delim;
                int l;
+
                if (!astr || !strcpy(astr, str) ||
-                               (delim = strchr(astr, '/')) == NULL || (*(delim++) == 0) ||
+                               (delim = strchr(astr, '/')) == NULL || (*(delim++) = 0) ||
                                sscanf(delim, "%i", &l) == 0 || l > 128 ||
-                               inet_pton(AF_INET6, astr, &iface->pio_filter_addr) == 0) {
+                               inet_pton(AF_INET6, astr, &iface->pio_filter_addr) == 0)
                        iface->pio_filter_length = 0;
-               } else {
+               else
                        iface->pio_filter_length = l;
-               }
+
                if (astr)
                        free(astr);
        }