minix/lib/libc/sys-minix/lseek.c

#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>

#include <unistd.h>

#ifdef __weak_alias
__weak_alias(lseek, _lseek)
#endif

off_t lseek(fd, offset, whence)
int fd;
off_t offset;
int whence;
{
  message m;

  m.m2_i1 = fd;
  m.m2_l1 = offset;
  m.m2_i2 = whence;
  if (_syscall(VFS_PROC_NR, LSEEK, &m) < 0) return( (off_t) -1);
  return( (off_t) m.m2_l1);
}