readdir - phpMan

READDIR(2)                 Linux Programmer’s Manual                READDIR(2)



NAME
       readdir - read directory entry

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

       _syscall3(int, readdir, uint, fd, struct dirent *, dirp, uint, count);

       int readdir(unsigned int fd, struct dirent *dirp, unsigned int count);

DESCRIPTION
       This  is  not the function you are interested in.  Look at readdir(3) for the POSIX
       conforming C library interface.  This page documents the bare  kernel  system  call
       interface, which can change, and which is superseded by getdents(2).

       readdir  reads  one  dirent  structure from the directory pointed at by fd into the
       memory area pointed to by dirp.  The parameter count is ignored; at most one dirent
       structure is read.

       The dirent structure is declared as follows:

              struct dirent
              {
                  long d_ino;                 /* inode number */
                  off_t d_off;                /* offset to this dirent */
                  unsigned short d_reclen;    /* length of this d_name */
                  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
       this dirent.  d_reclen is the size of d_name, not  counting  the  null  terminator.
       d_name is a null-terminated file name.


RETURN VALUE
       On  success,  1  is returned.  On end of directory, 0 is returned.  On error, -1 is
       returned, and errno is set appropriately.

ERRORS
       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.

       ENOTDIR
              File descriptor does not refer to a directory.

CONFORMING TO
       This system call is Linux specific.

SEE ALSO
       getdents(2), readdir(3)




Linux 1.3.6                       1995-07-22                        READDIR(2)

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