Date: Wed, 13 Jul 2011 09:51:24 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: cluts: Incorrect test expectations in buf module (errno) Hi, It seems cluts' buf module is surprised that strerror_r and ttyname_r did not set errno to ERANGE. However these functions are not specified to report anything in errno. Instead they return the error code directly. This is an unfortunate inconsistency created in the early days of "reentrant" (_r) functions due to confusion over whether errno could be safely used in multithreaded programs. Note that some other functions which return error codes directly are: posix_* (posix_memalign etc.) pthread_* Rich
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