Add PAM support to dtlogin.

cde/programs/dtlogin/config/Imakefile

@@ -26,6 +26,14 @@ LOCAL_CPP_DEFINES = -DCDE_CONFIGURATION_TOP=$(CDE_CONFIGURATION_TOP) \
 LOCAL_CPP_DEFINES += -DFREEBSD
 #endif
 
+#ifdef HasPamLibrary
+LOCAL_CPP_DEFINES += -DHAS_PAM_LIBRARY
+#ifdef PamAuthenticationModule
+PAM_AUTHENTICATION_MODULE=PamAuthenticationModule
+LOCAL_CPP_DEFINES += -DPAM_AUTHENTICATION_MODULE=$(PAM_AUTHENTICATION_MODULE)
+#endif
+#endif
+
 #ifdef SunArchitecture
 EXTRA_CPP_TARGETS = \
 	0015.sun.env \
@@ -48,7 +56,8 @@ CPP_TARGETS = \
 	Xstartup		current.session \
 	display.current.session	display.home.session \
 	dtlslocale		dtprofile \
-	home.session		$(EXTRA_CPP_TARGETS)
+	home.session	dtlogin.pam.conf \
+	$(EXTRA_CPP_TARGETS)
 
 AllTarget($(CPP_TARGETS))
 
@@ -81,3 +90,7 @@ CppSourceFile(display.home.session,display.home.session.src,$(LOCAL_CPP_DEFINES)
 CppSourceFile(dtlslocale,dtlslocale.src,$(LOCAL_CPP_DEFINES),)
 CppSourceFile(dtprofile,dtprofile.src,$(LOCAL_CPP_DEFINES),)
 CppSourceFile(home.session,home.session.src,$(LOCAL_CPP_DEFINES),)
+
+#ifdef HasPamLibrary
+CppSourceFile(dtlogin.pam.conf,dtlogin.pam.conf.src,$(LOCAL_CPP_DEFINES),)
+#endif

cde/programs/dtlogin/config/Xsetup.src

@@ -80,3 +80,18 @@ fi
     fi
   fi
 #endif
+
+#ifdef HAS_PAM_LIBRARY
+#ifdef __FreeBSD__
+#define PAM_D /usr/local/etc/pam.d
+#else
+#define PAM_D /etc/pam.d
+#endif
+
+  if [ ! -f PAM_D/dtlogin ]; then
+    if [ -f CDE_INSTALLATION_TOP/config/dtlogin.pam.conf ]; then
+      /bin/cp CDE_INSTALLATION_TOP/config/dtlogin.pam.conf PAM_D/dtlogin
+      /bin/chmod 644 PAM_D/dtlogin
+    fi
+  fi
+#endif

cde/programs/dtlogin/config/dtlogin.pam.conf.src

@@ -0,0 +1,11 @@
+#ifdef PAM_AUTHENTICATION_MODULE
+auth sufficient PAM_AUTHENTICATION_MODULE
+#endif
+auth required pam_unix.so
+
+account required pam_nologin.so
+account required pam_unix.so
+
+session required pam_lastlog.so
+
+password required pam_deny.so