Remove "violation:" from synchronization error message.

[exim.git] / src / src / smtp_in.c

diff --git a/src/src/smtp_in.c b/src/src/smtp_in.c
index 7328280be450a4edfa286c81852fb3216c674272..f7549bb7c8580c3bb01825838945e3a9d4d75dbc 100644 (file)
--- a/src/src/smtp_in.c
+++ b/src/src/smtp_in.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/smtp_in.c,v 1.13 2005/03/15 14:09:12 ph10 Exp $ */
+/* $Cambridge: exim/src/src/smtp_in.c,v 1.21 2005/08/02 08:25:45 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -34,9 +34,12 @@ int deny_severity  = LOG_NOTICE;
 #endif
 
 
-/* Size of buffer for reading SMTP commands */
+/* Size of buffer for reading SMTP commands. We used to use 512, as defined
+by RFC 821. However, RFC 1869 specifies that this must be increased for SMTP
+commands that accept arguments, and this in particular applies to AUTH, where
+the data can be quite long. */
 
-#define cmd_buffer_size  512      /* Ref. RFC 821 */
+#define cmd_buffer_size  2048
 
 /* Size of buffer for reading SMTP incoming packets */
 
@@ -801,11 +804,12 @@ store_reset(reset_point);
 recipients_list = NULL;
 rcpt_count = rcpt_defer_count = rcpt_fail_count =
   raw_recipients_count = recipients_count = recipients_list_max = 0;
+message_linecount = 0;
 message_size = -1;
 acl_warn_headers = NULL;
 queue_only_policy = FALSE;
 deliver_freeze = FALSE;                              /* Can be set by ACL */
-fake_reject = FALSE;                                 /* Can be set by ACL */
+fake_response = OK;                                  /* Can be set by ACL */
 #ifdef WITH_CONTENT_SCAN
 no_mbox_unspool = FALSE;                             /* Can be set by ACL */
 #endif
@@ -834,6 +838,10 @@ spf_smtp_comment = NULL;
 #endif
 body_linecount = body_zerocount = 0;
 
+sender_rate = sender_rate_limit = sender_rate_period = NULL;
+ratelimiters_mail = NULL;           /* Updated by ratelimit ACL condition */
+                   /* Note that ratelimiters_conn persists across resets. */
+
 for (i = 0; i < ACL_M_MAX; i++) acl_var[ACL_C_MAX + i] = NULL;
 
 /* The message body variables use malloc store. They may be set if this is
@@ -1613,14 +1621,17 @@ if (smtp_enforce_sync && sender_host_address != NULL && !sender_host_notsocket)
       &tzero) > 0)
     {
     int rc = read(fileno(smtp_in), smtp_inbuffer, in_buffer_size);
-    if (rc > 150) rc = 150;
-    smtp_inbuffer[rc] = 0;
-    log_write(0, LOG_MAIN|LOG_REJECT, "SMTP protocol violation: "
-      "synchronization error (input sent without waiting for greeting): "
-      "rejected connection from %s input=\"%s\"", host_and_ident(TRUE),
-      string_printing(smtp_inbuffer));
-    smtp_printf("554 SMTP synchronization error\r\n");
-    return FALSE;
+    if (rc > 0)
+      {
+      if (rc > 150) rc = 150;
+      smtp_inbuffer[rc] = 0;
+      log_write(0, LOG_MAIN|LOG_REJECT, "SMTP protocol "
+        "synchronization error (input sent without waiting for greeting): "
+        "rejected connection from %s input=\"%s\"", host_and_ident(TRUE),
+        string_printing(smtp_inbuffer));
+      smtp_printf("554 SMTP synchronization error\r\n");
+      return FALSE;
+      }
     }
   }
 
@@ -2107,6 +2118,14 @@ while (done <= 0)
     if (au->set_id != NULL) set_id = expand_string(au->set_id);
     expand_nmax = -1;        /* Reset numeric variables */
 
+    /* The value of authenticated_id is stored in the spool file and printed in
+    log lines. It must not contain binary zeros or newline characters. In
+    normal use, it never will, but when playing around or testing, this error
+    can (did) happen. To guard against this, ensure that the id contains only
+    printing characters. */
+
+    if (set_id != NULL) set_id = string_printing(set_id);
+
     /* For the non-OK cases, set up additional logging data if set_id
     is not empty. */
 
@@ -2574,7 +2593,7 @@ while (done <= 0)
     if (tls_active >= 0) (void)tls_write(s, ptr); else
     #endif
 
-    fwrite(s, 1, ptr, smtp_out);
+    (void)fwrite(s, 1, ptr, smtp_out);
     DEBUG(D_receive) debug_printf("SMTP>> %s", s);
     helo_seen = TRUE;
     break;   /* HELO/EHLO */
@@ -3464,9 +3483,9 @@ while (done <= 0)
 
     if ((pid = fork()) == 0)
       {
-      smtp_input = FALSE;    /* This process is not associated with the */
-      fclose(smtp_in);       /* SMTP call any more. */
-      fclose(smtp_out);
+      smtp_input = FALSE;       /* This process is not associated with the */
+      (void)fclose(smtp_in);    /* SMTP call any more. */
+      (void)fclose(smtp_out);
 
       signal(SIGCHLD, SIG_DFL);      /* Want to catch child */
 
@@ -3543,8 +3562,7 @@ while (done <= 0)
     if (c > 150) c = 150;
     smtp_inptr[c] = 0;
     incomplete_transaction_log(US"sync failure");
-    log_write(0, LOG_MAIN|LOG_REJECT, "SMTP protocol violation: "
-      "synchronization error "
+    log_write(0, LOG_MAIN|LOG_REJECT, "SMTP protocol synchronization error "
       "(next input sent too soon: pipelining was%s advertised): "
       "rejected \"%s\" %s next input=\"%s\"",
       pipelining_advertised? "" : " not",