close
OS/161 Reference Manual
Name
close - close file
Library
Standard C Library (libc, -lc)
Synopsis
#include <unistd.h>
int
close(int fd);
Description
The file handle fd is closed. The same file handle may then
be returned again from open,
dup2, pipe, or similar
calls.
Other file handles are not affected in any way, even if they are
attached to the same file.
Return Values
On success, close returns 0. On error, -1 is returned, and
errno is set according to the error
encountered.
Errors
The following error codes should be returned under the conditions
given. Other error codes may be returned for other errors not
mentioned here.
| | |
| EBADF | fd is not a valid file handle. |
| EIO | A hard I/O error occurred. |