getdents - get directory entries
_syscall3(int, getdents, uint, fd, struct dirent *, dirp, uint, count);
int getdents(unsigned int fd, struct dirent *dirp, unsigned int count);
getdents reads several dirent structures from the direc
tory pointed at by fd into the memory area pointed to by
dirp. The parameter count is the size of the memory area.
The dirent structure is declared as follows:
long d_ino; /* inode number */
off_t d_off; /* offset to next dirent */
unsigned short d_reclen; /* length of this dirent */
char d_name [NAME_MAX+1]; /* file name (null-terminated) */
d_ino is an inode number. d_off is the distance from the
start of the directory to the start of the next dirent.
d_reclen is the size of this entire dirent. d_name is a
null-terminated file name.
This call supersedes readdir(2).
On success, the number of bytes read is returned. On end
of directory, 0 is returned. On error, -1 is returned,
and errno is set appropriately.
EBADF Invalid file descriptor fd.
EFAULT Argument points outside the calling process's
EINVAL Result buffer is too small.
ENOENT No such directory.
File descriptor does not refer to a directory.
SVr4, SVID. SVr4 documents additional ENOLINK, EIO error