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returning early if no data was received

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skarg
2005-03-23 16:03:34 +00:00
parent 32562856b8
commit a69905c8a3
1 changed files with 3 additions and 0 deletions
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bacnet-stack/ports/linux/ethernet.c
+3
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@@ -318,6 +318,9 @@ uint16_t ethernet_receive(
return 0; return 0;
} }
if (received_bytes == 0)
return 0;
/* the signature of an 802.2 BACnet packet */ /* the signature of an 802.2 BACnet packet */
if ((buf[14] != 0x82) && (buf[15] != 0x82)) { if ((buf[14] != 0x82) && (buf[15] != 0x82)) {
//fprintf(stderr,"ethernet: Non-BACnet packet\n"); //fprintf(stderr,"ethernet: Non-BACnet packet\n");