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authorRich Felker <dalias@aerifal.cx>2015-09-25 01:18:42 +0000
committerRich Felker <dalias@aerifal.cx>2015-09-25 01:18:42 +0000
commit2a6e1f0f5a8811d08101df0fd72b9baa27ed430c (patch)
tree2d02596b58ea2a5b9e3b040854ebf3f63e7323c6 /src/internal/libc.c
parent06bcf9bc941a2f3bf34ac4468644d9693802495b (diff)
downloadmusl-2a6e1f0f5a8811d08101df0fd72b9baa27ed430c.tar.gz
avoid attempting to lookup IP literals as hostnames
previously, __lookup_ipliteral only checked its argument against the requested address family, so IPv4 literals passed through to __lookup_name if the caller asked for only IPv6 results, and likewise for IPv6 literals when the caller asked for only IPv4. this resulted in spurious DNS lookups that reportedly even succeeded with some nameservers. now, __lookup_ipliteral attempts to parse its argument as both IPv4 and IPv6, and returns an error (to stop further search) rather than 0 (no results yet) if the form of the argument mismatches the requested address family. based on patch by Julien Ramseier.
Diffstat (limited to 'src/internal/libc.c')
0 files changed, 0 insertions, 0 deletions