Add stricter checks for netnames.

[tinc] / src / ipv4.h

diff --git a/src/ipv4.h b/src/ipv4.h
index bd63ad0..997b88d 100644 (file)
--- a/src/ipv4.h
+++ b/src/ipv4.h
@@ -72,7 +72,7 @@ struct ip {
 #endif
        uint8_t ip_tos;
        uint16_t ip_len;
-       uint16_t ip_id; 
+       uint16_t ip_id;
        uint16_t ip_off;
 #define IP_RF 0x8000
 #define IP_DF 0x4000
@@ -81,7 +81,7 @@ struct ip {
        uint8_t ip_p;
        uint16_t ip_sum;
        struct in_addr ip_src, ip_dst;
-} __attribute__ ((__packed__));
+} __attribute__ ((__gcc_struct__, __packed__));
 #endif
 
 #ifndef IP_OFFMASK
@@ -143,7 +143,7 @@ struct icmp {
 #define icmp_radv icmp_dun.id_radv
 #define icmp_mask icmp_dun.id_mask
 #define icmp_data icmp_dun.id_data
-} __attribute__ ((__packed__));
+} __attribute__ ((__gcc_struct__, __packed__));
 #endif
 
 #endif /* __TINC_IPV4_H__ */