CAPNG_GET_CAPS_PROCESS(3) Libcap-ng API CAPNG_GET_CAPS_PROCESS(3)NAME
capng_get_caps_process - get the capabilities from a process
capng_get_caps_process will get the capabilities and bounding set of the pid stored inside libcap-ng's state table. The default is the pid
of the running process. This can be changed by using the capng_setpid function.
This returns 0 on success and -1 on failure.
If you are doing multi-threaded programming, calling this function will only get capabilities on the calling thread. If you want to get
overall capabilities for a multi-threaded process, you can only do that before creating any threads. Afterwards, threads may be able to
independantly set capabilities.
SEE ALSO capng_setpid(3), capabilities(7)AUTHOR
Red Hat June 2009 CAPNG_GET_CAPS_PROCESS(3)
Check Out this Related Man Page
CAPNG_CHANGE_ID(3) Libcap-ng API CAPNG_CHANGE_ID(3)NAME
capng_change_id - change the credentials retaining capabilities
int capng_change_id(int uid, int gid, capng_flags_t flag);
This function will change uid and gid to the ones given while retaining the capabilities previously specified in capng_update. It is not
necessary and perhaps better if capng_apply has not been called prior to this function so that all necessary privileges are still intact.
The caller is required to have CAP_SETPCAP capability still active before calling this function.
This function also takes a flag parameter that helps to tailor the exact actions performed by the function to secure the environment. The
option may be or'ed together. The legal values are:
Simply change uid and retain specified capabilities and that's all.
After changing id, remove and supplement groups that may come with the account.
After changing the uid and gid, clear the bounding set regardless to the internal representation already setup.
This returns 0 on success and a negative number on failure. -1 means capng has not been initted properly, -2 means a failure requesting to
keep capabilities across the uid change, -3 means that applying the intermediate capabilities failed, -4 means changing gid failed, -5
means dropping supplemental groups failed, -6 means changing the uid failed, -7 means dropping the ability to retain caps across a uid
change failed, -8 means clearing the bounding set failed, -9 means dropping CAP_SETPCAP failed.
Note: the only safe action to do upon failure of this function is to probably exit. This is because you are likely in a situation with par-
tial permissions and not what you intended.
SEE ALSO capng_update(3), capng_apply(3), prctl(2), capabilities(7)AUTHOR
Red Hat June 2009 CAPNG_CHANGE_ID(3)
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