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

NAME

pr_settaskid - inject settaskid system call into victim process

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

taskid_t
pr_settaskid(struct ps_prochandle *P, projid_t project, int flags);

DESCRIPTION

The pr_settaskid() function injects the settaskid(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 settaskid(2) on the
currently running process.

The arguments project and flags have the same meaning as in settaskid(2).
See settaskid(2) for the full description and purpose of the settaskid
system call and its arguments.

The pr_settaskid() 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_settaskid() function's return value is
that described in settaskid(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 settaskid(2).

The pr_settaskid() 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

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

illumos November 27, 2023 illumos