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#include <stdio.h>
#include "stdlib.h"
#include "_stdio.h"
#if defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || defined _XOPEN_SOURCE
#include "sys/types.h"
#include "unistd.h"
#else
#define close(fd) -1
#endif
/** close a file stream **/
int fclose(FILE *stream)
{
flockfile(stream);
if (fflush(stream) == EOF) {
/* set errno */
return EOF;
}
if (stream->mem.buf) {
if (stream->mem.allocated) {
free(stream->mem.buf);
}
} else if (close(stream->fd) == -1) {
/* set errno */
return EOF;
}
/*
if (!(stream->flags & FF_USERBUF) && stream->buf != NULL) {
free(stream->buf);
}
*/
funlockfile(stream);
/*
RETURN_SUCCESS(0);
RETURN_FAILURE(CONSTANT(EOF));
*/
return 0;
}
/***
function closes ARGUMENT(stream) and its associated file. Any
unwritten data is flushed before closing. Any unread data is discarded. If the
buffer was automatically allocated, it is freed.
***/
/*
STDC(1)
*/
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