path: root/arch/arm
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authorRich Felker <>2015-10-26 18:42:22 -0400
committerRich Felker <>2015-10-26 18:42:22 -0400
commit2683e267fa6c20d2e7a498a85f79a1dfc4301f23 (patch)
tree27b7c8e3e3888b65dd788e6919a30a5b2deca3d5 /arch/arm
parentb114190b29417fff6f701eea3a3b3b6030338280 (diff)
safely handle failure to open hosts, services, resolv.conf files
previously, transient failures like fd exhaustion or other resource-related errors were treated the same as non-existence of these files, leading to fallbacks or false-negative results. in particular: - failure to open hosts resulted in fallback to dns, possibly yielding EAI_NONAME for a hostname that should be defined locally, or an unwanted result from dns that the hosts file was intended to replace. - failure to open services resulted in EAI_SERVICE. - failure to open resolv.conf resulted in querying localhost rather than the configured nameservers. now, only permanent errors trigger the fallback behaviors above; all other errors are reportable to the caller as EAI_SYSTEM.
Diffstat (limited to 'arch/arm')
0 files changed, 0 insertions, 0 deletions