.th UDATA II 5/31/77 .sh NAME udata \*- get per-user data .sh SYNOPSIS .nf (pwbsys = 57.; udata = 1) (pointer to buffer in r0) (function in r1) .bd "sys pwbsys; udata" .fi .sh DESCRIPTION .it Udata is used to access a 32 byte section of the per-user process data region. If the .it function is zero, the section is read into the buffer given by the pointer. If the function is non-zero, the section is written from the buffer if super-user. The structure of the section is left to the user. .sh "SEE ALSO" loginfo(I), loginfo(II) .sh DIAGNOSTICS The error bit(c-bit) is set if the buffer can not be read or written, or if not super-user for write. From C, a \*-1 return indicates an error.