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av_tempfile: use O_EXCL
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -152,7 +152,10 @@ int av_tempfile(const char *prefix, char **filename) {
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# ifndef O_BINARY
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# define O_BINARY 0
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# endif
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fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
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# ifndef O_EXCL
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# define O_EXCL 0
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# endif
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fd = open(*filename, O_RDWR | O_BINARY | O_CREAT | O_EXCL, 0444);
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#else
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snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
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fd = mkstemp(*filename);
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