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.Dd May 11, 2016 .Dt PASFD 3PROC .Os .Sh NAME .Nm Pasfd .Nd obtain the process address space file descriptor .Sh SYNOPSIS .Lb libproc n libproc.h .Ft int .Fo Pasfd .Fa "struct ps_prochandle *P" .Fc .Sh DESCRIPTION The .Fn Pasfd funtion returns a file descriptor that allows direct access to the address space of the process handle .Fa P . A defined file descriptor is provided when using the .Xr Pcreate , .Xr Pgrab 3PROC , .Xr Pgrab_file 3PROC , and .Xr Pgrab_core 3PROC functions. Note that the address space may be different in each of these cases and doesn't necessarily correspond to the /proc .Sy as file, except for live processes. Other means of obtaining a .Sy libproc process handle may not define a file descriptor that contains the address space.

p The returned file descriptor must not be closed and is only valid for as long as the corresponding process handle .Fa P is valid. After a call to .Xr Prelease 3PROC the file descriptor is invalidated. .Sh RETURN VALUES Upon successful completion, the .Fn Pasfd function returns a valid file descriptor. Otherwise, if none exists, then .Sy -1 is returned. .Sh INTERFACE STABILITY .Sy Uncommitted .Sh MT-LEVEL See .Sy LOCKING in .Xr libproc 3LIB . .Sh SEE ALSO .Xr libproc 3LIB , .Xr Pcreate 3PROC , .Xr Pgrab 3PROC , .Xr Pgrab_core 3PROC , .Xr Pgrab_file 3PROC , .Xr Prelease 3PROC , .Xr proc 4