opensolaris man page for fclose

fclose(3C)						   Standard C Library Functions 						fclose(3C)

NAME
       fclose - close a stream

SYNOPSIS
       #include <stdio.h>

       int fclose(FILE *stream);

DESCRIPTION
       The  fclose()  function	causes	the stream pointed to by stream to be flushed and the associated file to be closed. Any unwritten buffered
       data for the stream is written to the file; any unread buffered data is discarded. The stream is disassociated from the file. If the  asso-
       ciated buffer was automatically allocated, it is deallocated.

       The  fclose()  function	marks for update the st_ctime and st_mtime fields of the underlying file if the stream is writable and if buffered
       data has not yet been written to the file.  It will perform a close(2) operation on the file descriptor that is associated with the  stream
       pointed to by stream.

       After the call to fclose(), any use of stream causes undefined behavior.

       The fclose() function is performed automatically for all open files upon calling exit(2).

RETURN VALUES
       Upon successful completion, fclose() returns 0. Otherwise, it returns EOF and sets errno to indicate the error.

ERRORS
       The fclose() function will fail if:

       EAGAIN	 The O_NONBLOCK flag is set for the file descriptor underlying stream and the process would be delayed in the write operation.

       EBADF	 The file descriptor underlying stream is not valid.

       EFBIG	 An attempt was made to write a file that exceeds the maximum file size or the process's file size limit; or the file is a regular
		 file and an attempt was made to write at or beyond the offset maximum associated with the corresponding stream.

       EINTR	 The fclose() function was interrupted by a signal.

       EIO	 The process is a member of a background process group attempting to write to its controlling terminal, TOSTOP is set, the process
		 is neither ignoring nor blocking SIGTTOU and the process group of the process is orphaned.

       ENOSPC	 There was no free space remaining on the device containing the file.

       EPIPE	 An  attempt is made to write to a pipe or FIFO that is not open for reading by any process. A SIGPIPE signal will also be sent to
		 the calling thread.

       The fclose() function may fail if:

       ENXIO	A request was made of a non-existent device, or the request was beyond the limits of the device.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       close(2), exit(2), getrlimit(2), ulimit(2), fopen(3C), stdio(3C), attributes(5), standards(5)

SunOS 5.11							    1 Nov 2003								fclose(3C)