There appears to be a cut-and-paste error in one spot in pwd_mkdb.
I am unsure of how it affects users, if it does at all.

Here is the patch:

--- pwd_mkdb.c.orig	2014-07-07 12:29:15.019698896 -0700
+++ pwd_mkdb.c	2014-07-07 12:30:08.125795430 -0700
@@ -341,21 +341,21 @@ main(int argc, char *argv[])
 		 * user.  When operating on `old format' databases, this
 		 * would result in applications `seeing' only the updated
 		 * entries.
 		 */
 		key.data = verskey;
 		key.size = sizeof(verskey)-1;
 		data.data = &version;
 		data.size = 1;
 		if ((dp->put)(dp, &key, &data, 0) == -1)
 			error("put");
-		if ((dp->put)(sdp, &key, &data, 0) == -1)
+		if ((sdp->put)(sdp, &key, &data, 0) == -1)
 			error("put");
 	}
 	ypcnt = 0;
 	data.data = (u_char *)buf;
 	sdata.data = (u_char *)sbuf;
 	key.data = (u_char *)tbuf;
 	for (cnt = 1; scan(fp, &pwd); ++cnt) {
 		if (!is_comment && 
 		    (pwd.pw_name[0] == '+' || pwd.pw_name[0] == '-')) {
 			yp_enabled = 1;


By grepping the file, we can see that everywhere else in the file uses
sdp->put instead of dp->put:

$ grep put pwd_mkdb.c.orig | grep sdp
5:351:		if ((dp->put)(sdp, &key, &data, 0) == -1)
13:437:			if ((sdp->put)(sdp, &key, &sdata, method) == -1)
15:445:			if ((sdp->put)(sdp, &key, &sdata, method) == -1)
17:453:			if ((sdp->put)(sdp, &key, &sdata, methoduid) == -1)
21:464:				if ((sdp->put)(sdp, &key, &sdata, method) == -1)
29:527:			if ((sdp->put)(sdp, &key, &sdata, method) == -1)
31:535:			if ((sdp->put)(sdp, &key, &sdata, method) == -1)
33:543:			if ((sdp->put)(sdp, &key, &sdata, methoduid) == -1)
37:554:				if ((sdp->put)(sdp, &key, &sdata, method) == -1)
41:584:		if ((sdp->put)(sdp, &key, &data, method) == -1)
45:590:		if ((sdp->put)(sdp, &key, &data, method) == -1)