PR_CLOSE(3PROC) Process Control Library Functions PR_CLOSE(3PROC)
NAME
pr_close - inject close system call into victim process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> int pr_close(
struct ps_prochandle *P,
int fd);
DESCRIPTION
The
pr_close() function injects the
close(2) system call into the target
process
P by means of the agent LWP. If the process handle
P is NULL then
this is equivalent to calling
close(2) on the currently running process.
The argument
fd has the same meaning as in
close(2). See
close(2) for the
full description and purpose of the
close system call and its arguments.
The
pr_close() 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_close() function's return value is that
described in
close(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
close(2).
The
pr_close() 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
close(2),
libproc(3LIB),
proc(5)illumos November 27, 2023 illumos