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:

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.

Uncommitted

See LOCKING in libproc(3LIB).

open(2), libproc(3LIB), proc(5)
May 11, 2016 OmniOS