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* make mkdtemp and mkstemp family leave template unchanged on failRich Felker2013-08-021-10/+14
| | | | | | also refactor mkdtemp based on new shared temp code, removing dependency on the deprecated mktemp, whose behavior made this logic more difficult.
* make mktemp match the historic behavior, and update functions that use itRich Felker2011-02-191-2/+3
| | | | | | the historic mktemp is supposed to blank the template string on failure, rather than returning 0. just zero the first character so that mkstemp and mkdtemp can still retry with O(1) space requirement.
* major improvements to temp file name generatorRich Felker2011-02-181-1/+3
| | | | | | | | use current time in nanoseconds and some potentially-random (if aslr is enabled) pointer values for the initial tempfile name generation, and step via a cheap linear prng on collisions. limit the number of retry attempts to prevent denial of service attacks even if an attacker can guess the filenames.
* ensure standard functions mk[sd]temp don't depend on removed function mktempRich Felker2011-02-141-2/+3
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* begin namespace-cleanup of standard C headersRich Felker2011-02-141-0/+1
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* initial check-in, version 0.5.0 v0.5.0Rich Felker2011-02-121-0/+21