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MAC_TEXT(3)		    Library Functions Manual		   MAC_TEXT(3)

NAME
       mac_from_text,  mac_to_text -- convert MAC label	to/from	text represen-
       tation

LIBRARY
       Standard	C Library (libc, -lc)

SYNOPSIS
       #include	<sys/mac.h>

       int
       mac_from_text(mac_t *mac, const char *text);

       int
       mac_to_text(mac_t label,	char **text);

DESCRIPTION
       The mac_from_text() function converts the text representation of	a  la-
       bel  into  the  internal	 policy	 label format (mac_t) and places it in
       *mac, which must	later be freed with free(3).

       The mac_to_text() function allocates storage for	*text, which  will  be
       set to the text representation of label.

       Refer to	maclabel(7) for	the MAC	label format.

RETURN VALUES
       The  mac_from_text()  and mac_to_text() functions return	the value 0 if
       successful; otherwise the value -1 is returned and the global  variable
       errno is	set to indicate	the error.

COMPATIBILITY
       POSIX.1e	 does  not define a format for text representations of MAC la-
       bels.

       POSIX.1e	requires that text strings allocated  using  mac_to_text()  be
       freed  using  mac_free(3);  in the FreeBSD implementation, they must be
       freed using free(3), as mac_free(3) is used only	to  free  memory  used
       for type	mac_t.

ERRORS
       [ENOMEM]		  Insufficient memory was available to allocate	inter-
			  nal storage.

SEE ALSO
       free(3),	  mac(3),   mac_get(3),	  mac_is_present(3),   mac_prepare(3),
       mac_set(3), posix1e(3), mac(4), maclabel(7)

STANDARDS
       POSIX.1e	is described in	IEEE POSIX.1e draft 17.

HISTORY
       Support for Mandatory Access Control was	introduced in FreeBSD  5.0  as
       part of the TrustedBSD Project.

FreeBSD	14.3		      September	21, 2023		   MAC_TEXT(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=mac_text&sektion=3&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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