kike: stuff

Implemented a lot of the channel stuff and other stuff as well.

src/common.c

@@ -642,7 +642,7 @@ str_map_iter_next (struct str_map_iter *self)
 		self->link = self->link->next;
 	while (!self->link)
 	{
-		if (self->next_index >= map->len)
+		if (self->next_index >= map->alloc)
 			return NULL;
 		self->link = map->map[self->next_index++];
 	}
@@ -1376,6 +1376,33 @@ strip_str_in_place (char *s, const char *stripped_chars)
 	return s;
 }
 
+static char *
+join_str_vector (const struct str_vector *v, char delimiter)
+{
+	if (!v->len)
+		return xstrdup ("");
+
+	struct str result;
+	str_init (&result);
+	str_append (&result, v->vector[0]);
+	for (size_t i = 1; i < v->len; i++)
+		str_append_printf (&result, "%c%s", delimiter, v->vector[i]);
+	return str_steal (&result);
+}
+
+ATTRIBUTE_PRINTF (1, 2)
+static char *
+xstrdup_printf (const char *format, ...)
+{
+	va_list ap;
+	struct str tmp;
+	str_init (&tmp);
+	va_start (ap, format);
+	str_append_vprintf (&tmp, format, ap);
+	va_end (ap);
+	return str_steal (&tmp);
+}
+
 static bool
 str_append_env_path (struct str *output, const char *var, bool only_absolute)
 {