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slirp: goto bad in udp_input if sosendto fails 

Before this patch, if sosendto fails, udp_input is executed as if the
packet was sent, recording the packet for icmp errors, which does not
makes sense since the packet was not actually sent, errors would be
related to a previous packet.

This patch adds a goto bad to cut the execution of this function.

Signed-off-by: Guillaume Subiron <maethor@subiron.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Guillaume Subiron 2015-12-19 22:24:55 +01:00 committed by Jason Wang
parent d7f053652f
commit 86c9e1e9d7
1 changed files with 1 additions and 0 deletions
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1
slirp/udp.c
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@ -218,6 +218,7 @@ udp_input(register struct mbuf *m, int iphlen)
*ip=save_ip;
DEBUG_MISC((dfd,"udp tx errno = %d-%s\n",errno,strerror(errno)));
icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno));
goto bad;
}
m_free(so->so_m); /* used for ICMP if error on sorecvfrom */