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#include <unistd.h>
#include <syscall.h>
#include <errno.h>
#undef lseek
#include "dirstream.h"
#ifdef __SVR4_I386_ABI_L1__
#define lseek __libc_lseek
#else
static inline
_syscall3(off_t,lseek,int,fildes,off_t,offset,int,origin)
#endif
#ifdef __ELF__
#pragma weak telldir = __libc_telldir
#endif
off_t
__libc_telldir(DIR * dir)
{
off_t offset;
if (!dir) {
errno = EBADF;
return -1;
}
switch (dir->dd_getdents)
{
case no_getdents:
/* We are running the old kernel. This is the starting offset
of the next readdir(). */
offset = lseek(dir->dd_fd, 0, SEEK_CUR);
break;
case unknown:
/* readdir () is not called yet. but seekdir () may be called. */
case have_getdents:
/* The next entry. */
offset = dir->dd_nextoff;
break;
default:
errno = EBADF;
offset = -1;
}
return offset;
}
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