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-rw-r--r--src/src/smtp_in.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/src/src/smtp_in.c b/src/src/smtp_in.c
index 711ee8611..effc63672 100644
--- a/src/src/smtp_in.c
+++ b/src/src/smtp_in.c
@@ -9,6 +9,7 @@
#include "exim.h"
+#include <assert.h>
/* Initialize for TCP wrappers if so configured. It appears that the macro
@@ -232,6 +233,7 @@ static uschar *protocols[] = {
/* Sanity check and validate optional args to MAIL FROM: envelope */
enum {
+ ENV_MAIL_OPT_NULL,
ENV_MAIL_OPT_SIZE, ENV_MAIL_OPT_BODY, ENV_MAIL_OPT_AUTH,
#ifndef DISABLE_PRDR
ENV_MAIL_OPT_PRDR,
@@ -240,7 +242,6 @@ enum {
#ifdef EXPERIMENTAL_INTERNATIONAL
ENV_MAIL_OPT_UTF8,
#endif
- ENV_MAIL_OPT_NULL
};
typedef struct {
uschar * name; /* option requested during MAIL cmd */
@@ -260,7 +261,8 @@ static env_mail_type_t env_mail_type_list[] = {
#ifdef EXPERIMENTAL_INTERNATIONAL
{ US"SMTPUTF8",ENV_MAIL_OPT_UTF8, FALSE }, /* rfc6531 */
#endif
- { US"NULL", ENV_MAIL_OPT_NULL, FALSE }
+ /* keep this the last entry */
+ { US"NULL", ENV_MAIL_OPT_NULL, FALSE },
};
/* When reading SMTP from a remote host, we have to use our own versions of the
@@ -3887,7 +3889,7 @@ while (done <= 0)
if (!extract_option(&name, &value)) break;
for (mail_args = env_mail_type_list;
- (char *)mail_args < (char *)env_mail_type_list + sizeof(env_mail_type_list);
+ mail_args->value != ENV_MAIL_OPT_NULL;
mail_args++
)
if (strcmpic(name, mail_args->name) == 0)
@@ -4066,15 +4068,17 @@ while (done <= 0)
}
break;
#endif
- /* Unknown option. Stick back the terminator characters and break
+ /* No valid option. Stick back the terminator characters and break
the loop. Do the name-terminator second as extract_option sets
- value==name when it found no equal-sign.
- An error for a malformed address will occur. */
- default:
+ value==name when it found no equal-sign.
+ An error for a malformed address will occur. */
+ case ENV_MAIL_OPT_NULL:
value[-1] = '=';
name[-1] = ' ';
arg_error = TRUE;
break;
+
+ default: assert(0);
}
/* Break out of for loop if switch() had bad argument or
when start of the email address is reached */