table of contents
- bookworm 0.8.3-1+b3
- testing 0.8.3-1+b3
- unstable 0.8.3-1+b3
- experimental 0.8.3-2
CAPNG_SETPID(3) | Libcap-ng API | CAPNG_SETPID(3) |
NAME¶
capng_setpid - set working pid
SYNOPSIS¶
#include <cap-ng.h>
void capng_setpid(int pid);
DESCRIPTION¶
capng_pid sets the working pid for capabilities operations. This is useful if you want to get the capabilities of a different process.
NOTES¶
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.
RETURN VALUE¶
None.
SEE ALSO¶
capng_get_caps_process(3), capabilities(7)
AUTHOR¶
Steve Grubb
June 2009 | Red Hat |