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Bugfix: check the size of the outgoing packet to avoid overflowing the output buffer

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This commit is contained in:
Adam Dunkels 2013-03-17 23:56:55 +01:00
parent 843d2361dc
commit 2ba293a538
1 changed files with 2 additions and 1 deletions
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3
core/net/uip-udp-packet.c
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@ -54,7 +54,8 @@ uip_udp_packet_send(struct uip_udp_conn *c, const void *data, int len)
uip_udp_conn = c;
uip_slen = len;
memcpy(&uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN], data,
len > UIP_BUFSIZE? UIP_BUFSIZE: len);
len > UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN?
UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN: len);
uip_process(UIP_UDP_SEND_CONN);
#if UIP_CONF_IPV6
tcpip_ipv6_output();