1 files changed, 9 insertions, 3 deletions

diff --git a/session.c b/session.c
index 93babf957..471018bc9 100644
--- a/session.c
+++ b/session.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: session.c,v 1.241 2008/06/16 13:22:53 dtucker Exp $ */
+/* $OpenBSD: session.c,v 1.242 2008/08/21 04:09:57 djm Exp $ */
 /*
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
  *                    All rights reserved
@@ -95,6 +95,12 @@
 #include <kafs.h>
 #endif
 
+#define IS_INTERNAL_SFTP(c) \
+        (!strncmp(c, INTERNAL_SFTP_NAME, sizeof(INTERNAL_SFTP_NAME) - 1) && \
+         (c[sizeof(INTERNAL_SFTP_NAME) - 1] == '\0' || \
+          c[sizeof(INTERNAL_SFTP_NAME) - 1] == ' ' || \
+          c[sizeof(INTERNAL_SFTP_NAME) - 1] == '\t'))
+
 /* func */
 
 Session *session_new(void);
@@ -781,7 +787,7 @@ do_exec(Session *s, const char *command)
         if (options.adm_forced_command) {
                 original_command = command;
                 command = options.adm_forced_command;
-                if (strcmp(INTERNAL_SFTP_NAME, command) == 0)
+                if (IS_INTERNAL_SFTP(command))
                         s->is_subsystem = SUBSYSTEM_INT_SFTP;
                 else if (s->is_subsystem)
                         s->is_subsystem = SUBSYSTEM_EXT;
@@ -789,7 +795,7 @@ do_exec(Session *s, const char *command)
         } else if (forced_command) {
                 original_command = command;
                 command = forced_command;
-                if (strcmp(INTERNAL_SFTP_NAME, command) == 0)
+                if (IS_INTERNAL_SFTP(command))
                         s->is_subsystem = SUBSYSTEM_INT_SFTP;
                 else if (s->is_subsystem)
                         s->is_subsystem = SUBSYSTEM_EXT;