PR_LSEEK(3PROC) Process Control Library Functions PR_LSEEK(3PROC)
NAME
pr_lseek - inject lseek system call into victim process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> int pr_lseek(
struct ps_prochandle *P,
int filedes,
off_t offset,
int whence);
DESCRIPTION
The
pr_lseek() function injects the
lseek(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
lseek(2) on the currently
running process.
The arguments
filedes,
offset, and
whence have the same meaning as in
lseek(2). See
lseek(2) for the full description and purpose of the
lseek system call and its arguments.
The
pr_lseek() 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_lseek() function's return value is that
described in
lseek(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
lseek(2).
The
pr_lseek() 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
lseek(2),
libproc(3LIB),
proc(5)illumos November 27, 2023 illumos