GETUID(2)                            BSD                             GETUID(2)



NAME
     getuid, geteuid - get user identity

SYNOPSIS
     #include <sys/types.h>

     uid = getuid()
     uid_t uid;

     euid = geteuid()
     uid_t euid;

DESCRIPTION
     getuid returns the real user ID of the current process, geteuid the
     effective user ID.

     The real user ID identifies the person who is logged in.  The effective
     user ID gives the process additional permissions during execution of
     "set-user-ID" mode processes, which use getuid to determine the real user
     ID of the process that invoked them.

SEE ALSO
     getgid(2), setreuid(2)