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-rw-r--r--doc/doc-docbook/spec.xfpt3
-rw-r--r--src/src/exim.c19
2 files changed, 19 insertions, 3 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 06373ccde..7816bc26d 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -4274,7 +4274,7 @@ or &%-bs%& is used. For &%-bh%&, the protocol is forced to one of the standard
SMTP protocol names (see the description of &$received_protocol$& in section
&<<SECTexpvar>>&). For &%-bs%&, the protocol is always &"local-"& followed by
one of those same names. For &%-bS%& (batched SMTP) however, the protocol can
-be set by &%-oMr%&.
+be set by &%-oMr%&. Repeated use of this option is not supported.
.vitem &%-oMs%&&~<&'host&~name'&>
.oindex "&%-oMs%&"
@@ -4374,6 +4374,7 @@ host name and its colon can be omitted when only the protocol is to be set.
Note the Exim already has two private options, &%-pd%& and &%-ps%&, that refer
to embedded Perl. It is therefore impossible to set a protocol value of &`d`&
or &`s`& using this option (but that does not seem a real limitation).
+Repeated use of this option is not supported.
.vitem &%-q%&
.oindex "&%-q%&"
diff --git a/src/src/exim.c b/src/src/exim.c
index 67583e584..88e119778 100644
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -3106,7 +3106,14 @@ for (i = 1; i < argc; i++)
/* -oMr: Received protocol */
- else if (Ustrcmp(argrest, "Mr") == 0) received_protocol = argv[++i];
+ else if (Ustrcmp(argrest, "Mr") == 0)
+
+ if (received_protocol)
+ {
+ fprintf(stderr, "received_protocol is set already\n");
+ exit(EXIT_FAILURE);
+ }
+ else received_protocol = argv[++i];
/* -oMs: Set sender host name */
@@ -3202,7 +3209,15 @@ for (i = 1; i < argc; i++)
if (*argrest != 0)
{
- uschar *hn = Ustrchr(argrest, ':');
+ uschar *hn;
+
+ if (received_protocol)
+ {
+ fprintf(stderr, "received_protocol is set already\n");
+ exit(EXIT_FAILURE);
+ }
+
+ hn = Ustrchr(argrest, ':');
if (hn == NULL)
{
received_protocol = argrest;