zkFileno - map a stream pointer to a file descriptor
#include "zkStdio.h"
int zkFileno(FILE* stream);
The
zkFileno()
function returns the integer file descriptor associated with the stream pointed to by stream.
Upon successful completion,
zkFileno()
returns the integer value of the file descriptor associated with stream. Otherwise, the value -1 is returned and errno is set to indicate the error.
The
zkFileno()
function may fail if:
- [EBADF]
- The stream argument is not a valid stream.