commit 65a7b8f988d8a766014d58e5d73d30b0199b1656
author Igor Sysoev <igor@sysoev.ru> Wed Feb 14 20:45:19 2007 +0000
committer Igor Sysoev <igor@sysoev.ru> Wed Feb 14 20:45:19 2007 +0000
tree 772a45d991875e9d1cba2dbc4ecc2be8f5790df9
parent 722231f40788d1243bf302227ed7b6fdfeaea492

return error for too long commands

src/imap/ngx_imap_handler.c

diff --git a/src/imap/ngx_imap_handler.c b/src/imap/ngx_imap_handler.c
index db0b8ce..dad0994 100644
--- a/src/imap/ngx_imap_handler.c
+++ b/src/imap/ngx_imap_handler.c
@@ -1212,6 +1212,7 @@
 {
     ssize_t    n;
     ngx_int_t  rc;
+    ngx_str_t  l;
 
     n = s->connection->recv(s->connection, s->buffer->last,
                             s->buffer->end - s->buffer->last);
@@ -1240,10 +1241,22 @@
         rc = ngx_imap_parse_command(s);
     }
 
-    if (rc == NGX_AGAIN
-        || rc == NGX_IMAP_NEXT
-        || rc == NGX_IMAP_PARSE_INVALID_COMMAND)
-    {
+    if (rc == NGX_AGAIN) {
+
+        if (s->buffer->last < s->buffer->end) {
+            return rc;
+        }
+
+        l.len = s->buffer->last - s->buffer->start;
+        l.data = s->buffer->start;
+
+        ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
+                      "client sent too long command \"%V\"", &l);
+
+        return NGX_IMAP_PARSE_INVALID_COMMAND;
+    }
+
+    if (rc == NGX_IMAP_NEXT || rc == NGX_IMAP_PARSE_INVALID_COMMAND) {
         return rc;
     }