System Calls

fgetlabel(2)

NAME | Synopsis | Description | Return Values | Errors | Attributes | See Also

NAME

getlabel, fgetlabel – get file sensitivity label

Synopsis

cc [flags...] file... -ltsol [library...]

#include <tsol/label.h>

int getlabel(const char *path, m_label_t *label_p);

int fgetlabel(int fd, m_label_t *label_p);

Description

getlabel() obtains the sensitivity label of the file that is named by path. Discretionary read, write or execute permission to the final component of path is not required, but all directories in the path prefix of path must be searchable.

fgetlabel() obtains the label of an open file that is referred to by the argument descriptor, such as would be obtained by an open(2) call.

label_p is a pointer to an opaque label structure. The caller must allocate space for label_p by using m_label_alloc(3TSOL).

Return Values

getlabel() and fgetlabel() return:

0

On success.

-1

On failure, and set errno to indicate the error.

Errors

getlabel() fails if one or more of the following are true:

EACCES

Search permission is denied for a component of the path prefix of path. To override this restriction, the calling process can assert the PRIV_FILE_DAC_SEARCH privilege.

EFAULT

label_p or path points to an invalid address.

EIO

An I/O error occurred while reading from or writing to the file system.

ELOOP

Too many symbolic links were encountered in translating path.

ENAMETOOLONG

The length of the path argument exceeds PATH_MAX.

A pathname component is longer than NAME_MAX while _POSIX_NO_TRUNC is in effect (see pathconf(2)).

ENOENT

The file referred to by path does not exist.

ENOTDIR

A component of the path prefix of path is not a directory.

fgetlabel() fails if one or more of the following are true:

EBADF

fd is not a valid open file descriptor.

EFAULT

label_p points to an invalid address.

EIO

An I/O error occurred while reading from or writing to the file system.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcslr
Interface Stability	Stable

See Also

open(2), pathconf(2), m_label_alloc(3TSOL), attributes(5), labels(5)

Obtaining a File Label in Solaris Trusted Extensions Developer’s Guide

SunOS 5.10  Last Revised 31 May 2006

NAME | Synopsis | Description | Return Values | Errors | Attributes | See Also

getlabel(2)

NAME | Synopsis | Description | Return Values | Errors | Attributes | See Also

NAME

getlabel, fgetlabel – get file sensitivity label

Synopsis

cc [flags...] file... -ltsol [library...]

#include <tsol/label.h>

int getlabel(const char *path, m_label_t *label_p);

int fgetlabel(int fd, m_label_t *label_p);

Description

getlabel() obtains the sensitivity label of the file that is named by path. Discretionary read, write or execute permission to the final component of path is not required, but all directories in the path prefix of path must be searchable.

fgetlabel() obtains the label of an open file that is referred to by the argument descriptor, such as would be obtained by an open(2) call.

label_p is a pointer to an opaque label structure. The caller must allocate space for label_p by using m_label_alloc(3TSOL).

Return Values

getlabel() and fgetlabel() return:

0

On success.

-1

On failure, and set errno to indicate the error.

Errors

getlabel() fails if one or more of the following are true:

EACCES

Search permission is denied for a component of the path prefix of path. To override this restriction, the calling process can assert the PRIV_FILE_DAC_SEARCH privilege.

EFAULT

label_p or path points to an invalid address.

EIO

An I/O error occurred while reading from or writing to the file system.

ELOOP

Too many symbolic links were encountered in translating path.

ENAMETOOLONG

The length of the path argument exceeds PATH_MAX.

A pathname component is longer than NAME_MAX while _POSIX_NO_TRUNC is in effect (see pathconf(2)).

ENOENT

The file referred to by path does not exist.

ENOTDIR

A component of the path prefix of path is not a directory.

fgetlabel() fails if one or more of the following are true:

EBADF

fd is not a valid open file descriptor.

EFAULT

label_p points to an invalid address.

EIO

An I/O error occurred while reading from or writing to the file system.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcslr
Interface Stability	Stable

See Also

open(2), pathconf(2), m_label_alloc(3TSOL), attributes(5), labels(5)

Obtaining a File Label in Solaris Trusted Extensions Developer’s Guide

SunOS 5.10  Last Revised 31 May 2006

NAME | Synopsis | Description | Return Values | Errors | Attributes | See Also