PR_GETSOCKOPT(3PROC) Process Control Library Functions PR_GETSOCKOPT(3PROC)

pr_getsockopt —
inject getsockopt library call call into victim process

Process Control Library (libproc, -lproc)
#include <libproc.h>

int
pr_getsockopt(struct ps_prochandle *P, int sock, int level, int optname, void *optval, int *optlen);

The pr_getsockopt() function injects the getsockopt(3SOCKET) library call 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 getsockopt(3SOCKET) on the currently running process.

The arguments sock, level, optname, optval, and optlen have the same meaning as in getsockopt(3SOCKET), see getsockopt(3SOCKET) for the full description and purpose of the getsockopt system call and its arguments.

The pr_getsockopt() 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_getsockopt() function's return value is that described in getsockopt(3SOCKET). 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 getsockopt(3SOCKET).

The pr_getsockopt() 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).

libproc(3LIB), getsockopt(3SOCKET), proc(5)
May 11, 2016 OmniOS