sd-dhcp: rely on FIONREAD working

[elogind.git] / src / libsystemd-network / dhcp-protocol.h

diff --git a/src/libsystemd-network/dhcp-protocol.h b/src/libsystemd-network/dhcp-protocol.h
index 260508fbbd2e402f6015a8f6c01f6584050acba2..4d87891ff1d84a69b2471a44333b8e858cae669f 100644 (file)
--- a/src/libsystemd-network/dhcp-protocol.h
+++ b/src/libsystemd-network/dhcp-protocol.h
@@ -60,7 +60,7 @@ typedef struct DHCPPacket DHCPPacket;
 #define DHCP_IP_SIZE            (int32_t)(sizeof(struct iphdr))
 #define DHCP_IP_UDP_SIZE        (int32_t)(sizeof(struct udphdr) + DHCP_IP_SIZE)
 #define DHCP_MESSAGE_SIZE       (int32_t)(sizeof(DHCPMessage))
-#define DHCP_MIN_OPTIONS_SIZE   308
+#define DHCP_MIN_OPTIONS_SIZE   308 /* spec says 312, but that includes the magic cookie */
 #define DHCP_MAGIC_COOKIE       (uint32_t)(0x63825363)
 
 enum {