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NAME | SYNOPSIS | DESCRIPTION | NOTES | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
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CAPNG_SETPID(3) Libcap-ng API CAPNG_SETPID(3)
capng_setpid - set working pid
#include <cap-ng.h>
void capng_setpid(int pid);
capng_pid sets the working pid for capabilities operations. This
is useful if you want to get the capabilities of a different
process.
If your process calls fork , then the child process will still
have the pid of the parent process stored in libcap-ng's internal
data. It is disallowed to do any kind of setcap operations
because you would be crossing process boundaries. To correct
this, if your program links against pthreads, then libcap-ng will
use the pthread_atfork function (as a weak symbol) to reset the
pid information to the new process automatically. You are not
required to link against pthreads. You can call capng_setpid and
adjust the stored pid manually.
None.
capng_get_caps_process(3), capabilities(7)
Steve Grubb
This page is part of the libcap-ng (capabilities commands and
library (NG)) project. Information about the project can be
found at ⟨https://people.redhat.com/sgrubb/libcap-ng/⟩. It is
not known how to report bugs for this man page; if you know,
please send a mail to [email protected]. This page was obtained
from the tarball libcap-ng-0.8.5.tar.gz fetched from
⟨https://people.redhat.com/sgrubb/libcap-ng/index.html⟩ on
2024-06-14. 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 is not
part of the original manual page), send a mail to
[email protected]
Red Hat June 2009 CAPNG_SETPID(3)
Pages that refer to this page: capng_get_caps_process(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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