diff options
| -rw-r--r-- | man2/getdents.2 | 56 |
1 files changed, 45 insertions, 11 deletions
diff --git a/man2/getdents.2 b/man2/getdents.2 index c908d994ab..e45cd7ad21 100644 --- a/man2/getdents.2 +++ b/man2/getdents.2 @@ -24,7 +24,7 @@ .\" Modified 22 July 1995 by Michael Chastain <mec@duracef.shout.net>: .\" Derived from 'readdir.2'. .\" Modified Tue Oct 22 08:11:14 EDT 1996 by Eric S. Raymond <esr@thyrsus.com> -.TH GETDENTS 2 2007-06-01 "Linux" "Linux Programmer's Manual" +.TH GETDENTS 2 2008-06-22 "Linux" "Linux Programmer's Manual" .SH NAME getdents \- get directory entries .SH SYNOPSIS @@ -49,9 +49,9 @@ The system call reads several .I dirent structures from the directory -pointed at by +referred to by the open file descriptor .I fd -into the memory area pointed to by +into the buffer pointed to by .IR dirp . The parameter .I count @@ -63,11 +63,17 @@ structure is declared as follows: .PP .in +4n .nf -struct dirent { - long d_ino; /* inode number */ - off_t d_off; /* offset to next \fIdirent\fP */ - unsigned short d_reclen; /* length of this \fIdirent\fP */ - char d_name [NAME_MAX+1]; /* filename (null-terminated) */ +struct linux_dirent { + unsigned long d_ino; /* Inode number */ + unsigned long d_off; /* Offset to next \fIdirent\fP */ + unsigned short d_reclen; /* Length of this \fIdirent\fP */ + char d_name []; /* Filename (null-terminated) */ + /* length is actually (d_reclen - 2 - + offsetof(struct linux_dirent, d_name) */ + /* char pad; Zero padding byte */ + /* char d_type; File type (only since Linux 2.6.4; + offset is (d_reclen - 1)) */ + } .fi .in @@ -82,9 +88,34 @@ is the size of this entire .IR dirent . .I d_name is a null-terminated filename. -.PP -This call supersedes -.BR readdir (2). + +.I d_type +is a byte at the end of the structure that indicates the file type. +It returns one of the following values: +.TP 12 +.B DT_BLK +This is a block device. +.TP +.B DT_CHR +This is a character device. +.TP +.B DT_DIR +This is a directory. +.TP +.B DT_FIFO +This is a named pipe (FIFO). +.TP +.B DT_LNK +This is a symbolic link. +.TP +.B DT_REG +This is a regular file. +.TP +.B DT_SOCK +This is a Unix domain socket. +.TP +.B DT_UNKNOWN +The file type is unknown. .SH "RETURN VALUE" On success, the number of bytes read is returned. On end of directory, 0 is returned. @@ -114,6 +145,9 @@ SVr4. .SH NOTES Glibc does not provide a wrapper for this system call; call it using .BR syscall (2). + +This call supersedes +.BR readdir (2). .SH "SEE ALSO" .BR readdir (2), .BR readdir (3) |