USG_PG3/usr/source/sccsutil1/getldr.c

char getldr_____[] "~|^`getldr.c:	2.2";
/*
	Gets login directory. Argument is optional, if not present
	the real user ID is used. Note that if the argument is
	present it must be an integer.
	Note also assumption about position of directory field in
	password file.
*/

getldir(auid)
int auid;
{
	char pw[200];
	static int ouid;
	static char ldir[33];
	register int i,uid;
	register char *cp;
	if (nargs()==0) uid = getuid()&0377;
	else uid = auid;
	if (ouid!=uid || ouid==0) {
		if (getpw(uid,pw)) return(0);
		cp = pw;
		while (*cp++ != ':') ; /* login name */
		while (*cp++ != ':') ; /* passwd */
		while (*cp++ != ':') ; /* user ID */
		while (*cp++ != ':') ; /* comment */
		for (i=0; i<32; i++) {
			if ((ldir[i] = *cp)=='\0' || *cp==':') break;
			cp++;
		}
		ldir[i] = '\0';
	}
	return(ldir);
}