commit 53b354a9b87cfe0696ef8411dec25f45b7ca6f41
from: Martijn van Duren <martijn@openbsd.org>
date: Sun Apr 12 10:33:04 2020 UTC

Prepare for opensmtpd protocol version 0.6.
While here, 1 minor markup thingy

commit - 06220a702a876245348b8dad461557562521dda3
commit + 53b354a9b87cfe0696ef8411dec25f45b7ca6f41
blob - 626f0f6e2b3ff5fcb3d1c3da7d91b822ddf62b3e
blob + 539bac7cc375424390dff3068a761144925e0099
--- opensmtpd.c
+++ opensmtpd.c
@@ -1402,6 +1402,7 @@ osmtpd_tx_mail(struct osmtpd_callback *cb, struct osmt
     char *params, char *linedup)
 {
 	char *end, *mailfrom;
+	enum osmtpd_status status;
 	unsigned long imsgid;
 	uint32_t msgid;
 	void (*f)(struct osmtpd_ctx *, uint32_t, const char *,
@@ -1425,15 +1426,20 @@ osmtpd_tx_mail(struct osmtpd_callback *cb, struct osmt
 		osmtpd_errx(1, "Invalid line received: missing status: %s",
 		    linedup);
 	end++[0] = '\0';
-	mailfrom = params;
+	if (ctx->version_major == 0 && ctx->version_minor < 6) {
+		mailfrom = params;
+		status = osmtpd_strtostatus(end, linedup);
+	} else {
+		mailfrom = end;
+		status = osmtpd_strtostatus(params, linedup);
+	}
 	if (cb->storereport) {
 		if ((ctx->mailfrom = strdup(mailfrom)) == NULL)
 			osmtpd_err(1, NULL);
 	}
-	params = end;
 
 	if ((f = cb->cb) != NULL)
-		f(ctx, msgid, mailfrom, osmtpd_strtostatus(params, linedup));
+		f(ctx, msgid, mailfrom, status);
 }
 
 static void
@@ -1441,6 +1447,7 @@ osmtpd_tx_rcpt(struct osmtpd_callback *cb, struct osmt
     char *params, char *linedup)
 {
 	char *end, *rcptto;
+	enum osmtpd_status status;
 	unsigned long imsgid;
 	uint32_t msgid;
 	size_t i;
@@ -1466,8 +1473,13 @@ osmtpd_tx_rcpt(struct osmtpd_callback *cb, struct osmt
 		    linedup);
 	end++[0] = '\0';
 
-	rcptto = params;
-	params = end;
+	if (ctx->version_major == 0 && ctx->version_minor < 6) {
+		rcptto = params;
+		status = osmtpd_strtostatus(end, linedup);
+	} else {
+		rcptto = end;
+		status = osmtpd_strtostatus(params, linedup);
+	}
 
 	if (cb->storereport) {
 		for (i = 0; ctx->rcptto[i] != NULL; i++)
@@ -1483,8 +1495,7 @@ osmtpd_tx_rcpt(struct osmtpd_callback *cb, struct osmt
 	}
 
 	if ((f = cb->cb) != NULL)
-		f(ctx, msgid, rcptto,
-		    osmtpd_strtostatus(params, linedup));
+		f(ctx, msgid, rcptto, status);
 }
 
 static void
@@ -1953,8 +1964,8 @@ osmtpd_phasetostr(enum osmtpd_phase phase)
 	osmtpd_errx(1, "In valid phase: %d\n", phase);
 }
 
-static enum
-osmtpd_status osmtpd_strtostatus(const char *status, char *linedup)
+static enum osmtpd_status
+osmtpd_strtostatus(const char *status, char *linedup)
 {
 	if (strcmp(status, "ok") == 0)
 		return OSMTPD_STATUS_OK;