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

NAME


pr_setrctl - inject setrctl system call into victim process

SYNOPSIS


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);

DESCRIPTION


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.

RETURN VALUES


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.

ERRORS


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

The pr_setrctl() function will fail if:

ENOSYS 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.

INTERFACE STABILITY


Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO


setrctl(2), libproc(3LIB), proc(4)

illumos May 11, 2016 illumos