Made conky eval useful

Conky's eval seems rather useless, at least I couldn't get it do anything I wanted, so I added a little patch to make it more useful (to me):


diff --git a/src/conky.c b/src/conky.c
index 5848b61..8702cea 100644
--- a/src/conky.c
+++ b/src/conky.c
@@ -1103,7 +1103,9 @@ void generate_text_internal(char *p, int p_max_size,
}
#endif /* IMLIB2 */
OBJ(eval) {
- evaluate(obj->data.s, p, p_max_size);
+ char buffer[max_user_text];
+ evaluate(obj->data.s, buffer, sizeof(buffer));
+ evaluate(buffer, p, p_max_size);
}
OBJ(exec) {
print_exec(obj, p, p_max_size);

Probably not the best thing ever, but seems to do the trick for me; now I can get the address of the interface connected to the big bad internets with (note: won't work correctly when multiple interfaces with default route):


${eval $${addr ${gw_iface}}}

The patch applies against conky 1.9.0, unfortunately not against the heavily rewritten git master.

Update: similar patch I made against the 1.10.x has been merged to upstream conky; yay!

Published on November 9, 2015