Remove support for Kerberos V4. It seems no one is using this, it has

some security issues, and upstream has declared it "dead". Patch from
Magnus Hagander, minor editorialization from Neil Conway.

5 files changed, 6 insertions, 15 deletions

diff --git a/src/include/libpq/auth.h b/src/include/libpq/auth.h
index 94b0976e113..9f93b7fdf85 100644
--- a/src/include/libpq/auth.h
+++ b/src/include/libpq/auth.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/libpq/auth.h,v 1.28 2005/06/14 17:43:14 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/libpq/auth.h,v 1.29 2005/06/27 02:04:25 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -23,8 +23,7 @@
 
 extern void ClientAuthentication(Port *port);
 
-#define PG_KRB4_VERSION "PGVER4.1"		/* at most KRB_SENDAUTH_VLEN chars */
-#define PG_KRB5_VERSION "PGVER5.1"
+#define PG_KRB5_VERSION "PGVER5.1"      /* at most KRB_SENDAUTH_VLEN chars */
 
 extern char *pg_krb_server_keyfile;
 extern char *pg_krb_srvnam;
diff --git a/src/include/libpq/hba.h b/src/include/libpq/hba.h
index 0656e6a4e82..6798a09ad98 100644
--- a/src/include/libpq/hba.h
+++ b/src/include/libpq/hba.h
@@ -4,7 +4,7 @@
  *	  Interface to hba.c
  *
  *
- * $PostgreSQL: pgsql/src/include/libpq/hba.h,v 1.36 2005/02/26 18:43:34 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/libpq/hba.h,v 1.37 2005/06/27 02:04:25 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -17,7 +17,6 @@
 typedef enum UserAuth
 {
 	uaReject,
-	uaKrb4,
 	uaKrb5,
 	uaTrust,
 	uaIdent,
diff --git a/src/include/libpq/pqcomm.h b/src/include/libpq/pqcomm.h
index 4357b25d47f..830237d0012 100644
--- a/src/include/libpq/pqcomm.h
+++ b/src/include/libpq/pqcomm.h
@@ -9,7 +9,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/libpq/pqcomm.h,v 1.96 2004/12/31 22:03:32 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/libpq/pqcomm.h,v 1.97 2005/06/27 02:04:26 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -160,7 +160,7 @@ extern bool Db_user_namespace;
 /* These are the authentication request codes sent by the backend. */
 
 #define AUTH_REQ_OK			0	/* User is authenticated  */
-#define AUTH_REQ_KRB4		1	/* Kerberos V4 */
+#define AUTH_REQ_KRB4		1	/* Kerberos V4. Not supported any more. */
 #define AUTH_REQ_KRB5		2	/* Kerberos V5 */
 #define AUTH_REQ_PASSWORD	3	/* Password */
 #define AUTH_REQ_CRYPT		4	/* crypt password */
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index da29557e927..8e4543fb62f 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -575,9 +575,6 @@
 /* Define to the appropriate snprintf format for 64-bit ints, if any. */
 #undef INT64_FORMAT
 
-/* Define to build with Kerberos 4 support. (--with-krb4) */
-#undef KRB4
-
 /* Define to build with Kerberos 5 support. (--with-krb5) */
 #undef KRB5
 
diff --git a/src/include/port.h b/src/include/port.h
index f3120932c9b..61b566d4021 100644
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/port.h,v 1.75 2005/05/25 21:40:41 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/port.h,v 1.76 2005/06/27 02:04:25 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -267,10 +267,6 @@ extern int	getopt(int nargc, char *const * nargv, const char *ostr);
 extern int	isinf(double x);
 #endif
 
-#if !defined(HAVE_GETHOSTNAME) && defined(KRB4)
-extern int	gethostname(char *name, int namelen);
-#endif
-
 #ifndef HAVE_RINT
 extern double rint(double x);
 #endif