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semanage_exists(3) — Linux manual page

semanage_exists(3)    Libsemanage API documentationsemanage_exists(3)

NAME        top

       semanage_exists - SELinux Management API

SYNOPSIS        top

       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        top

Behavior:              The exists function will return 0 if a matching key is not              found, and 1 otherwise.Parameters:              Thehandle is used to track persistent state across              semanage calls, and for error reporting. Thekey identifies              the object being checked. The result of the test will be              stored in the address pointed byresponse 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 (seesemanage_connect(3) )

RETURN VALUE        top

       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        top

semanage_handle_create(3),semanage_connect(3),

COLOPHON        top

       This page is part of theselinux (Security-Enhanced Linux user-       space libraries and tools) project.  Information about the project       can be found at ⟨https://github.com/SELinuxProject/selinux/wiki⟩.       If you have a bug report for this manual page, see       ⟨https://github.com/SELinuxProject/selinux/wiki/Contributing⟩.       This page was obtained from the project's upstream Git repository       ⟨https://github.com/SELinuxProject/selinux⟩ on 2025-08-11.  (At       that time, the date of the most recent commit that was found in       the repository was 2025-08-04.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgivg2@cornell.edu              16 March 2006semanage_exists(3)

Pages that refer to this page:semanage_bool(3), semanage_fcontext(3), semanage_iface(3), semanage_node(3), semanage_port(3), semanage_seuser(3), semanage_user(3)

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