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authorGrant Likely <grant.likely@secretlab.ca>2007-08-29 18:26:24 -0600
committerWolfgang Denk <wd@denx.de>2007-08-30 09:16:16 +0200
commit8f1bc28408ded213418d9bc0780c7d8fb8a03774 (patch)
treefbc2ccfd74de779645192fdcafd1a1e09f92bb85 /doc/README.modnet50
parentd4a68f40a0389bb688477acfd23e957cb19443ad (diff)
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tftp: don't implicity trust the format of recevied packets
The TFTP OACK code trusts that the incoming packet is formated as ASCII text and can be processed by string functions. It also has a loop limit overflow bug where if the packet length is less than 8, it ends up looping over *all* of memory to find the 'blksize' string. This patch solves the problem by forcing the packet to be null terminated and using strstr() to search for the sub string. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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