diff -uNr -r postfix-2.5.1-orig/src/sendmail/sendmail.c postfix-2.5.1/src/sendmail/sendmail.c
--- postfix-2.5.1-orig/src/sendmail/sendmail.c	2008-01-09 14:59:40.000000000 +0100
+++ postfix-2.5.1/src/sendmail/sendmail.c	2008-03-14 19:23:25.405275019 +0100
@@ -1046,7 +1046,7 @@
 	mode = SM_MODE_MAILQ;
     } else if (strcmp(argv[0], "newaliases") == 0) {
 	mode = SM_MODE_NEWALIAS;
-    } else if (strcmp(argv[0], "smtpd") == 0) {
+    } else if (strncmp(argv[0], "smtpd", 5) == 0) {
 	mode = SM_MODE_DAEMON;
     } else {
 	mode = SM_MODE_ENQUEUE;
diff -uNr -r postfix-2.5.1-orig/src/smtp/smtp.c postfix-2.5.1/src/smtp/smtp.c
--- postfix-2.5.1-orig/src/smtp/smtp.c	2008-01-15 01:41:46.000000000 +0100
+++ postfix-2.5.1/src/smtp/smtp.c	2008-03-14 19:23:25.405275019 +0100
@@ -962,7 +962,7 @@
 	    TLS_CLIENT_INIT(&props,
 			    log_level = var_smtp_tls_loglevel,
 			    verifydepth = var_smtp_tls_scert_vd,
-			    cache_type = strcmp(var_procname, "smtp") == 0 ?
+			    cache_type = strncmp(var_procname, "smtp", 4) == 0 ?
 			    TLS_MGR_SCACHE_SMTP : TLS_MGR_SCACHE_LMTP,
 			    cert_file = var_smtp_tls_cert_file,
 			    key_file = var_smtp_tls_key_file,
@@ -1058,7 +1058,7 @@
     /*
      * XXX At this point, var_procname etc. are not initialized.
      */
-    smtp_mode = (strcmp(sane_basename((VSTRING *) 0, argv[0]), "smtp") == 0);
+    smtp_mode = (strncmp(sane_basename((VSTRING *) 0, argv[0]), "smtp", 4) == 0);
 
     /*
      * Initialize with the LMTP or SMTP parameter name space.
diff -uNr -r postfix-2.5.1-orig/src/smtp/smtp_state.c postfix-2.5.1/src/smtp/smtp_state.c
--- postfix-2.5.1-orig/src/smtp/smtp_state.c	2006-01-06 01:07:36.000000000 +0100
+++ postfix-2.5.1/src/smtp/smtp_state.c	2008-03-14 19:23:44.896995323 +0100
@@ -86,9 +86,9 @@
      * form, and then to transform from the internal form to external forms Y
      * and Z.
      */
-    if (strcmp(var_procname, "lmtp") == 0) {
+    if (strncmp(var_procname, "lmtp", 4) == 0) {
 	state->misc_flags |= SMTP_MISC_FLAG_USE_LMTP;
-    } else if (strcmp(var_procname, "smtp") == 0) {
+    } else if (strncmp(var_procname, "smtp", 4) == 0) {
 	/* void */
     } else {
 	msg_fatal("unexpected process name \"%s\" - "