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Copyright 2015 Joyent, Inc.

.Dd May 11, 2016 .Dt PR_DOOR_INFO 3PROC .Os .Sh NAME .Nm pr_door_info .Nd inject door_info library call into victim process .Sh SYNOPSIS .Lb libproc n libproc.h .Ft int .Fo pr_door_info .Fa "struct ps_prochandle *P" .Fa "int did" .Fa "struct door_info *info" .Fc .Sh DESCRIPTION The .Fn pr_door_info function injects the .Xr door_info 3C library call into the target process .Fa P by means of the agent LWP. If the process handle .Fa P is .Dv NULL then this is equivalent to calling .Xr door_info 3C on the currently running process.

p The arguments .Fa did and .Fa info have the same meaning as in .Xr door_info 3C . See .Xr door_info 3C for the full description and purpose of the .Sy door_info library call and its arguments.

p The .Fn pr_door_info function only works on active processes. Process handles that correspond to core files, zombie processes, or ELF objects do not support library call injection. .Sh RETURN VALUES Upon successful completion, the .Fn pr_door_info function's return value is that described in .Xr door_info 3C . Otherwise, .Sy -1 is returned and .Sy errno is set to .Er ENOSYS to indicate that the library call could not be injected. .Sh ERRORS For the full list of errors see the .Sy ERRORS section in .Xr door_info 3C .

p The .Fn pr_door_info function will fail if: l -tag -width Er t Er ENOSYS An error occurred while trying to invoke the agent LWP and inject a library call in the process handle .Fa P or the process handle .Fa P does not support library call injection. .El .Sh INTERFACE STABILITY .Sy Uncommitted .Sh MT-LEVEL See .Sy LOCKING in .Xr libproc 3LIB . .Sh SEE ALSO .Xr door_info 3C , .Xr libproc 3LIB , .Xr proc 4