PR_GETSOCKOPT(3PROC) Process Control Library Functions PR_GETSOCKOPT(3PROC)
NAME
pr_getsockopt - inject getsockopt library call call into victim process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> int pr_getsockopt(
struct ps_prochandle *P,
int sock,
int level,
int optname,
void *optval,
int *optlen);
DESCRIPTION
The
pr_getsockopt() function injects the
getsockopt(3SOCKET) library
call 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
getsockopt(3SOCKET) on the currently running process.
The arguments
sock,
level,
optname,
optval, and
optlen have the same
meaning as in
getsockopt(3SOCKET), see
getsockopt(3SOCKET) for the full
description and purpose of the
getsockopt system call and its
arguments.
The
pr_getsockopt() 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_getsockopt() function's return value
is that described in
getsockopt(3SOCKET). 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
getsockopt(3SOCKET).
The
pr_getsockopt() 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
UncommittedMT-LEVEL See
LOCKING in
libproc(3LIB).
SEE ALSO
libproc(3LIB),
getsockopt(3SOCKET),
proc(5)illumos November 27, 2023 illumos
