PR_SETRCTL(3PROC) Process Control Library Functions PR_SETRCTL(3PROC)

pr_setrctl
inject setrctl system call into victim process

Process Control Library (libproc, -lproc)
#include <libproc.h>

int
pr_setrctl(struct ps_prochandle *P, const char *rname, rctlblk_t *old_blk, rctlblk_t *new_blk, int rflag);

The pr_setrctl() function injects the setrctl(2) system call into the target process P by means of the agent LWP. If the process handle P is the value NULL then this will be equivalent to calling setrctl(2) on the currently running process.

The arguments rname, old_blk, new_blk, and rflag have the same meaning as in setrctl(2). See setrctl(2) for the full description and purpose of the setrctl system call and its arguments.

The pr_setrctl() function only works on active processes. Process handles that correspond to core files, zombie processes, or ELF objects do not support system call injection.

Upon successful completion, the pr_setrctl() function's return value is that described in setrctl(2). Otherwise, -1 is returned and errno is set to ENOSYS to indicate that the system call could not be injected.

For the full list of errors see the ERRORS section in setrctl(2).

The pr_setrctl() function will fail if:

An error occurred while trying to invoke the agent LWP and inject a system call in the process handle P or the process handle P does not support system call injection.

Uncommitted

See LOCKING in libproc(3LIB).

setrctl(2), libproc(3LIB), proc(5)
May 11, 2016 OmniOS