getdents - get directory entries


       #include <unistd.h>
       #include <linux/types.h>
       #include <linux/dirent.h>
       #include <linux/unistd.h>

       _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:

              struct dirent
                  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
              address space.

       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


       readdir(2), readdir(3)