| PR_OPEN(3PROC) | Process Control Library Functions | PR_OPEN(3PROC) |
pr_open — inject
open system call into victim process
Process Control Library (libproc, -lproc)
#include
<libproc.h>
int
pr_open(struct ps_prochandle *P,
const char *filename, int flags,
mode_t mode);
The
pr_open()
function injects the open(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
open(2) on the currently running
process.
The arguments filename, flags, and mode have the same meaning as in open(2). See open(2) for the full description and purpose of the open system call and its arguments.
The
pr_open()
function only works on active processes. Process handles that correspond to
core files, zombie processes, or ELF objects do not support system call
injection.
Upon successful completion, the pr_open()
function's return value is that described in
open(2). Otherwise,
-1 is returned
and
errno is
set to ENOSYS to indicate that the system call could
not be injected.
For the full list of errors see the ERRORS section in open(2).
The pr_open() function will fail if:
ENOSYSSee LOCKING in libproc(3LIB).
| November 27, 2023 | OmniOS |