PR_UNLINK(3PROC) Process Control Library Functions PR_UNLINK(3PROC)
NAME
pr_unlink - inject unlink system call into victim process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> int pr_unlink(
struct ps_prochandle *P,
const char *path);
DESCRIPTION
The
pr_unlink() function injects the
unlink(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
unlink(2) on the currently
running process.
The argument
path has the same meaning as in
unlink(2). See
unlink(2) for
the full description and purpose of the
unlink system call and its
arguments.
The
pr_unlink() 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_unlink() function's return value is that
described in
unlink(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
unlink(2).
The
pr_unlink() 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
unlink(2),
libproc(3LIB),
proc(5)illumos November 27, 2023 illumos