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

Uncommitted

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

SEE ALSO

gettaskid(2), libproc(3LIB), proc(5)

illumos November 27, 2023 illumos