selinux_file_context_cmp(3)selinux_file_context_cmp(3)NAMEselinux_file_context_cmp - Compare two SELinux security contexts
excluding the 'user' component
SYNOPSIS
#include <selinux/selinux.h>
int selinux_file_context_cmp(const security_context_t a,
const security_context_t b);
DESCRIPTIONselinux_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 ALSOselinux(8)SELinux API documentation 08 March 2011 selinux_file_context_cmp(3)