mirror of
https://github.com/cc65/cc65.git
synced 2024-11-03 10:07:02 +00:00
29 lines
438 B
C
29 lines
438 B
C
|
/*
|
||
|
|
* fseek.c
|
||
|
|
*
|
||
|
|
* Christian Groessler, 07-Aug-2000
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include "_file.h"
|
||
|
|
|
||
|
|
|
||
|
|
int fseek(FILE* f, long offset, int whence)
|
||
|
|
{
|
||
|
|
long res;
|
||
|
|
|
||
|
|
/* Is the file open? */
|
||
|
|
if ((f->f_flags & _FOPEN) == 0) {
|
||
|
|
_errno = EINVAL; /* File not open */
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
res = lseek(f->f_fd, offset, whence);
|
||
|
|
if (res == -1L) return 1;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|