USG_PG3/usr/source/sccsutil1/getlnm.c
char getlnm_____[] "~|^`getlnm.c: 2.2";
/*
Gets login name. Argument is optional, if not present
the real user ID is used. Note that if the argument is
present it must be an integer.
*/
getlnam(auid)
int auid;
{
char pw[200];
static int ouid;
static char lnam[9];
register int i,uid;
if (nargs()==0) uid = getuid()&0377;
else uid = auid;
if (ouid!=uid || ouid==0) {
if (getpw(uid,pw)) copy(stringf("%d",uid),lnam);
else {
for (i=0; i<8; i++) if ((lnam[i] = pw[i])==':') break;
lnam[i] = '\0';
}
ouid = uid;
}
return(lnam);
}