Rich Felker
106e75f712
apparently some packages see stropts.h and want to be able to use this. the implementation checks that the file descriptor is valid by using fcntl/F_GETFD so it can report an error if not (as specified).
8 lines
108 B
C
8 lines
108 B
C
#include <stropts.h>
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#include <fcntl.h>
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int isastream(int fd)
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{
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return fcntl(fd, F_GETFD) < 0 ? -1 : 0;
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}
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