hostapd: Fix parsing the das_client option

The musl implementation of inet_aton() returns an error if there are any
characters left after the IP address. When parsing the das_client, split
the string at the whitespace separator to be able to parse the address
successfully.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

hostapd/config_file.c

@@ -636,8 +636,7 @@ hostapd_parse_radius_attr(const char *value)
 }
 
 
-static int hostapd_parse_das_client(struct hostapd_bss_config *bss,
-				    const char *val)
+static int hostapd_parse_das_client(struct hostapd_bss_config *bss, char *val)
 {
 	char *secret;
 
@@ -645,7 +644,7 @@ static int hostapd_parse_das_client(struct hostapd_bss_config *bss,
 	if (secret == NULL)
 		return -1;
 
-	secret++;
+	*secret++ = '\0';
 
 	if (hostapd_parse_ip_addr(val, &bss->radius_das_client_addr))
 		return -1;