NAME

       semanage_exists - SELinux Management API

SYNOPSIS

       The following exists function is supported for any semanage record.
       Replace the function and object name as necessary.

       extern int EXISTS_FUNCTION (
            semanage_handle_t *handle,
            const semanage_OBJECT_key_t *key,
            semanage_OBJECT_t **response);

DESCRIPTION

       Behavior:
              The exists function will return 0 if a matching key is not found, and 1 otherwise.

       Parameters:
              The  handle  is used to track persistent state across semanage calls, and for error reporting. The
              key identifies the object being checked. The result of the test will  be  stored  in  the  address
              pointed  by  response  The  key  is  a  property of the caller, and will not be stored or modified
              internally.

       Requirements:
              This function requires an semanage connection to be established (see semanage_connect(3) )

RETURN VALUE

       In case of failure, -1 is returned, and the semanage error callback is  invoked,  describing  the  error.
       Otherwise  a  non-negative integer is returned (a commit number). The same number will be returned by all
       other read calls to the semanage database until the next commit.

SEE ALSO

       semanage_handle_create(3), semanage_connect(3),