PR_GETTASKID(3PROC) Process Control Library Functions PR_GETTASKID(3PROC)
NAME
pr_gettaskid - inject gettaskid system call into victim process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> taskid_t pr_gettaskid(
struct ps_prochandle *P);
DESCRIPTION
The
pr_gettaskid() function injects the
gettaskid(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
gettaskid(2) on the
currently running process.
The
pr_gettaskid() 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_gettaskid() function's return value is
that described in
gettaskid(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
gettaskid(2).
The
pr_gettaskid() 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
gettaskid(2),
libproc(3LIB),
proc(5)illumos November 27, 2023 illumos