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

pr_getrctl
inject getrctl system call into victim process

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

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

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

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

The pr_getrctl() 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_getrctl() function's return value is that described in getrctl(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 getrctl(2).

The pr_getrctl() 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).

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