AT&T UNIX™PC Unix System V Users Manual - tenox

CUSERID ( 3S ) CUSERID ( 3S )
NAME
cuserid - get character login name of the user
SYNOPSIS
#include
char *cuserid (s)
char *s;
DESCRWTION
Cu8erid generates a character-string representation of the login
name of the owner of the current process. If 8 is a NULL pointer,
this representation is generated in an internal static area, the
address of which is returned. Otherwise, s is assumed to point to
an array of at least L_cuserid characters; the representation is
left in this array. The constant L_cuserid is defined in the
header file.
DIAGNOSTICS
If the login name cannot be found, cu8erid returns a NULL
pointer; if 8 is not a NULL pointer, a null character (\0) will be
placed at 8{0/ .
SEE ALSO
getlogin(3C), getpwent(3C).
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