selinux_file_context_cmp(3)Library Functions Manualselinux_file_context_cmp(3)
NAME
selinux_file_context_cmp - Compare two SELinux security contexts ex-
cluding the 'user' component
SYNOPSIS
#include <selinux/selinux.h>
int selinux_file_context_cmp(const char *a,
const char *b);
DESCRIPTION
selinux_file_context_cmp() compares two context strings excluding the
user component with strcmp(3) as shown in the EXAMPLE section.
This is useful as for most object contexts, the user component is not
relevant.
RETURN VALUE
The return values follow the strcmp(3) function, where:
0 if they are equal.
1 if a is greater than b
-1 if a is less than b
ERRORS
None.
NOTES
The contexts being compared do not specifically need to be file con-
texts.
EXAMPLE
If context a is:
user_u:user_r:user_t:s0
and context b is:
root:user_r:user_t:s0
then the actual strings compared are:
:user_r:user_t:s0 and :user_r:user_t:s0
Therefore they will match and selinux_file_context_cmp() will return
zero.
SEE ALSO
selinux(8)
SELinux API documentation 08 March 2011 selinux_file_context_cmp(3)
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