Author: rodrigc
Date: Wed Jun 15 22:08:18 2011
New Revision: 223123
URL: http://svn.freebsd.org/changeset/base/223123
Log:
Currently tftp code in the loader retransmits the previous packet if it
receives any
unwanted packet(non-tftp). Change this to retransmit the packet(request or
ack) only after
a timeout.
Obtained from: Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>
Modified:
head/lib/libstand/tftp.c
Modified: head/lib/libstand/tftp.c
==============================================================================
--- head/lib/libstand/tftp.c Wed Jun 15 22:04:14 2011 (r223122)
+++ head/lib/libstand/tftp.c Wed Jun 15 22:08:18 2011 (r223123)
@@ -443,11 +443,15 @@ sendrecv_tftp(d, sproc, sbuf, ssize, rpr
continue;
}
+recvnext:
/* Try to get a packet and process it. */
cc = (*rproc)(d, rbuf, rsize, tleft);
/* Return on data, EOF or real error. */
if (cc != -1 || errno != 0)
return (cc);
+ if ((getsecs() - t1) < tleft) {
+ goto recvnext;
+ }
/* Timed out or didn't get the packet we're waiting for */
tleft += MINTMO;
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