include/atalk/unix.h File Reference

#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <atalk/globals.h>

Go to the source code of this file.

Macros
#define	NETATALK_DIOSZ_STACK   65536
#define	NETATALK_DIOSZ_HEAP   (1024*1024)

Functions
int	netatalk_unlink (const char *name)
	system unlink with afp error code. More...
int	netatalk_unlinkat (int dirfd, const char *name)
int	statat (int dirfd, const char *path, struct stat *st)
	stat/fsstatat multiplexer More...
DIR *	opendirat (int dirfd, const char *path)
	opendir wrapper for *at semantics support More...
int	netatalk_rmdir (int dirfd, const char *name)
	System rmdir with afp error code, but ENOENT is not an error. More...
int	netatalk_rmdir_all_errors (int dirfd, const char *name)
	system rmdir with afp error code. More...
int	setfilmode (const struct vol *vol, const char *name, mode_t mode, struct stat *st)
int	dir_rx_set (mode_t mode)
int	unix_rename (int sfd, const char *oldpath, int dfd, const char *newpath)
	This is equivalent of unix rename() More...
int	copy_file (int sfd, const char *src, const char *dst, mode_t mode)
int	copy_file_fd (int sfd, int dfd)
int	copy_ea (const char *ea, int sfd, const char *src, const char *dst, mode_t mode)
	Copy an EA from one file to another. More...
void	become_root (void)
void	unbecome_root (void)
int	gmem (gid_t gid, int ngroups, gid_t *groups)
int	set_groups (AFPObj *obj, struct passwd *pwd)
const char *	print_groups (int ngroups, gid_t *groups)

Macro Definition Documentation

NETATALK_DIOSZ_HEAP

#define NETATALK_DIOSZ_HEAP   (1024*1024)

NETATALK_DIOSZ_STACK

#define NETATALK_DIOSZ_STACK   65536

Function Documentation

become_root()

void become_root

(

void

)

seteuid(0) and back, if either fails and panic != 0 we PANIC. Nesting is tracked: only the outermost become_root() elevates privileges and only the matching unbecome_root() drops them.

copy_ea()

int copy_ea	(	const char *	ea,
		int	dirfd,
		const char *	src,
		const char *	dst,
		mode_t	mode
	)

Copy an EA from one file to another.

Note

Supports *at semantics, pass dirfd=-1 to ignore this

copy_file()

int copy_file	(	int	dirfd,
		const char *	src,
		const char *	dst,
		mode_t	mode
	)

Supports *at semantics, pass dirfd=-1 to ignore this

copy_file_fd()

int copy_file_fd	(	int	sfd,
		int	dfd
	)

Copy all file data from one file fd to another

dir_rx_set()

int dir_rx_set

(

mode_t

mode

)

gmem()

int gmem	(	gid_t	gid,
		int	ngroups,
		gid_t *	groups
	)

netatalk_rmdir()

int netatalk_rmdir	(	int	dirfd,
		const char *	name
	)

System rmdir with afp error code, but ENOENT is not an error.

Note

Supports *at semantics (cf openat). Pass dirfd=-1 to ignore this.

netatalk_rmdir_all_errors()

int netatalk_rmdir_all_errors	(	int	dirfd,
		const char *	name
	)

system rmdir with afp error code.

Note

Supports *at semantics (cf openat). Pass dirfd=-1 to ignore this.

netatalk_unlink()

int netatalk_unlink

(

const char *

name

)

system unlink with afp error code.

Note

ENOENT is not an error.

netatalk_unlinkat()

int netatalk_unlinkat	(	int	dirfd,
		const char *	name
	)

at wrapper for netatalk_unlink

opendirat()

DIR * opendirat	(	int	dirfd,
		const char *	path
	)

opendir wrapper for *at semantics support

opendirat chdirs to dirfd if dirfd != -1 before calling opendir on path.

Parameters

[in]	dirfd	if != -1, chdir(dirfd) before opendir(path)
[in]	path	pathname

print_groups()

const char * print_groups	(	int	ngroups,
		gid_t *	groups
	)

set_groups()

int set_groups	(	AFPObj *	obj,
		struct passwd *	pwd
	)

setfilmode()

int setfilmode	(	const struct vol *	vol,
		const char *	name,
		mode_t	mode,
		struct stat *	st
	)

statat()

int statat	(	int	dirfd,
		const char *	path,
		struct stat *	st
	)

stat/fsstatat multiplexer

statat mulitplexes stat and fstatat.

Parameters

[in]	dirfd	-1 gives AT_FDCWD
[in]	path	pathname
[in,out]	st	pointer to struct stat

unbecome_root()

void unbecome_root

(

void

)

unix_rename()

int unix_rename	(	int	sfd,
		const char *	oldpath,
		int	dfd,
		const char *	newpath
	)

This is equivalent of unix rename()

unix_rename mulitplexes rename and renameat.

Parameters

[in]	sfd	-1 gives AT_FDCWD
[in]	oldpath	guess what
[in]	dfd	same as sfd
[in]	newpath	guess what