m_label(3TSOL) Trusted Extensions Library Functions m_label(3TSOL)NAME
m_label, m_label_alloc, m_label_dup, m_label_free - m_label functions
SYNOPSIS
cc [flag...] file... -ltsol [library...]
#include <tsol/label.h>
m_label_t *m_label_alloc(const m_label_type_t label_type);
int m_label_dup(m_label_t **dst, const m_label_t *src);
void m_label_free(m_label_t *label);
DESCRIPTION
The m_label_alloc() function allocates resources for a new label. The
label_type argument defines the type for a newly allocated label. The
label type can be:
MAC_LABEL A Mandatory Access Control (MAC) label.
USER_CLEAR A user clearance.
The m_label_dup() function allocates resources for a new dst label. The
function returns a pointer to the allocated label, which is an exact
copy of the src label. The caller is responsible for freeing the allo‐
cated resources by calling m_label_free().
The m_label_free() function frees resources that are associated with
the previously allocated label.
RETURN VALUES
Upon successful completion, the m_label_alloc() function returns a
pointer to the newly allocated label. Otherwise, m_label_alloc()
returns NULL and errno is set to indicate the error.
Upon successful completion, the m_label_dup() function returns 0. Oth‐
erwise, -1 is returned and errno is set to indicate the error.
ERRORS
The m_label_alloc() function will fail if:
EINVAL Invalid parameter.
ENOMEM The physical limits of the system are exceeded by size bytes
of memory which cannot be allocated.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOlabel_to_str(3TSOL), libtsol(3LIB), str_to_label(3TSOL), label_encod‐
ings(4), attributes(5), labels(5)
Determining Whether the Printing Service Is Running in a Labeled Envi‐
ronment in Solaris Trusted Extensions Developer's Guide
NOTES
The functionality described on this manual page is available only if
the system is configured with Trusted Extensions.
SunOS 5.10 20 Jul 2007 m_label(3TSOL)
