1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib-smtp/smtp-common.c b/src/lib-smtp/smtp-common.c
new file mode 100644
index 0000000..1771169
--- /dev/null
+++ b/src/lib-smtp/smtp-common.c
@@ -0,0 +1,91 @@
+/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "smtp-common.h"
+
+/*
+ * Capabilities
+ */
+
+const struct smtp_capability_name smtp_capability_names[] = {
+	{ "AUTH", SMTP_CAPABILITY_AUTH },
+	{ "STARTTLS", SMTP_CAPABILITY_STARTTLS },
+	{ "PIPELINING", SMTP_CAPABILITY_PIPELINING },
+	{ "SIZE", SMTP_CAPABILITY_SIZE },
+	{ "ENHANCEDSTATUSCODES", SMTP_CAPABILITY_ENHANCEDSTATUSCODES },
+	{ "8BITMIME", SMTP_CAPABILITY_8BITMIME },
+	{ "CHUNKING", SMTP_CAPABILITY_CHUNKING },
+	{ "BINARYMIME", SMTP_CAPABILITY_BINARYMIME },
+	{ "BURL", SMTP_CAPABILITY_BURL },
+	{ "DSN", SMTP_CAPABILITY_DSN },
+	{ "VRFY", SMTP_CAPABILITY_VRFY },
+	{ "ETRN", SMTP_CAPABILITY_ETRN },
+	{ "XCLIENT", SMTP_CAPABILITY_XCLIENT },
+	{ NULL, 0 }
+};
+
+enum smtp_capability smtp_capability_find_by_name(const char *cap_name)
+{
+	const struct smtp_capability_name *cap;
+	unsigned int i;
+
+	for (i = 0; smtp_capability_names[i].name != NULL; i++) {
+		cap = &smtp_capability_names[i];
+
+		if (strcasecmp(cap_name, cap->name) == 0)
+			return cap->capability;
+	}
+
+	return SMTP_CAPABILITY_NONE;
+}
+
+/*
+ * SMTP proxy data
+ */
+
+static void
+smtp_proxy_data_merge_extra_fields(pool_t pool, struct smtp_proxy_data *dst,
+				   const struct smtp_proxy_data *src)
+{
+	const struct smtp_proxy_data_field *sefields;
+	struct smtp_proxy_data_field *defields;
+	unsigned int i;
+
+	if (src->extra_fields_count == 0)
+		return;
+
+	sefields = src->extra_fields;
+	defields = p_new(pool, struct smtp_proxy_data_field,
+			 src->extra_fields_count);
+	for (i = 0; i < src->extra_fields_count; i++) {
+		defields[i].name = p_strdup(pool, sefields[i].name);
+		defields[i].value = p_strdup(pool, sefields[i].value);
+	}
+
+	dst->extra_fields = defields;
+	dst->extra_fields_count = src->extra_fields_count;
+}
+
+void smtp_proxy_data_merge(pool_t pool, struct smtp_proxy_data *dst,
+			   const struct smtp_proxy_data *src)
+{
+	if (src->proto != SMTP_PROXY_PROTOCOL_UNKNOWN)
+		dst->proto = src->proto;
+	if (src->source_ip.family != 0) {
+		dst->source_ip = src->source_ip;
+		if (src->source_port != 0)
+			dst->source_port = src->source_port;
+	}
+	if (src->helo != NULL && *src->helo != '\0')
+		dst->helo = p_strdup(pool, src->helo);
+	if (src->login != NULL && *src->login != '\0')
+		dst->login = p_strdup(pool, src->login);
+	if (src->session != NULL && *src->session != '\0')
+		dst->session = p_strdup(pool, src->session);
+	if (src->ttl_plus_1 > 0)
+		dst->ttl_plus_1 = src->ttl_plus_1;
+	if (src->timeout_secs > 0)
+		dst->timeout_secs = src->timeout_secs;
+
+	smtp_proxy_data_merge_extra_fields(pool, dst, src);
+};