blob: 316163497b78fe1fb972f53ca13c360376b8f63b [file] [log] [blame]
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
#include <stdio.h>
#include <io.h>
#include <errno.h>
int fseeko64 (FILE* stream, _off64_t offset, int whence)
fpos_t pos;
if (whence == SEEK_CUR)
/* If stream is invalid, fgetpos sets errno. */
if (fgetpos (stream, &pos))
return (-1);
pos += (fpos_t) offset;
else if (whence == SEEK_END)
/* If writing, we need to flush before getting file length. */
fflush (stream);
pos = (fpos_t) (_filelengthi64 (_fileno (stream)) + offset);
else if (whence == SEEK_SET)
pos = (fpos_t) offset;
errno = EINVAL;
return (-1);
return fsetpos (stream, &pos);