readdir: číst adresář

Originální popis anglicky: readdir - read a directory

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

#include <sys/types.h>
 
#include <dirent.h>
 
struct dirent *readdir(DIR *dir);

POPIS / INSTRUKCE

The readdir() function returns a pointer to a dirent structure representing the next directory entry in the directory stream pointed to by dir. It returns NULL on reaching the end-of-file or if an error occurred. According to POSIX, the dirent structure contains a field char d_name[] of unspecified size, with at most NAME_MAX characters preceding the terminating null character. Use of other fields will harm the portability of your programs. POSIX 1003.1-2001 also documents the field ino_t d_ino as an XSI extension. The data returned by readdir() may be overwritten by subsequent calls to readdir() for the same directory stream.

NÁVRATOVÁ HODNOTA

The readdir() function returns a pointer to a dirent structure, or NULL if an error occurs or end-of-file is reached.

CHYBY / ERRORY

EBADF

Invalid directory stream descriptor dir.

ODPOVÍDAJÍCÍ

SVID 3, BSD 4.3, POSIX 1003.1-2001

SOUVISEJÍCÍ

read(2), closedir(3), dirfd(3), opendir(3), rewinddir(3), scandir(3), seekdir(3), telldir(3)