pkgparam
extern char *pkgparam __P((char *pkg, char *param));
basedir = pkgparam(pkginst, "BASEDIR");
basedir = pkgparam(pkginst, "BASEDIR");
if ((pt = pkgparam(info.pkginst, parmlst[i])) != NULL && *pt)
(void) pkgparam(NULL, NULL);
(void) pkgparam(NULL, NULL); /* close up prior pkg file if needed */
value = pkgparam(pkginst, param);
(void) pkgparam(NULL, NULL); /* close open FDs so umount won't fail */
extern char *pkgparam(char *, char *);