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authorRich Felker <dalias@aerifal.cx>2014-12-19 23:59:54 -0500
committerRich Felker <dalias@aerifal.cx>2014-12-19 23:59:54 -0500
commit1d8d86aeb54c0c5439eb07a4bc1b03983fb9d6e8 (patch)
treecad0aab0c0fca2c341795c5de18e60b9a722a25d /src/misc/uname.c
parent7d3512126db7044525cf402255e0a85ac68dc2e9 (diff)
downloadmusl-1d8d86aeb54c0c5439eb07a4bc1b03983fb9d6e8.tar.gz
fix stderr locking and ferror semantics in getopt message printing
if writing the error message fails, POSIX requires that ferror(stderr) be set. and as a function that operates on a stdio stream, getopt is required to lock the stream it uses, stderr. fwrite calls are used instead of fprintf since there is a demand from some users not to pull in heavy stdio machinery via getopt. this mimics the original code using write.
Diffstat (limited to 'src/misc/uname.c')
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