From 74289592b74bb00b598bb88e4214aba8464decae Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@cascardo.info>
Date: Fri, 14 Jun 2013 08:45:33 -0300
Subject: [PATCH] Parse key/value message, extracting the values of its keys.

---
 rnet_message.c | 36 ++++++++++++++++++++++++++++++++++++
 rnet_message.h |  3 +++
 2 files changed, 39 insertions(+)

diff --git a/rnet_message.c b/rnet_message.c
index e9a6345..52edf14 100644
--- a/rnet_message.c
+++ b/rnet_message.c
@@ -131,3 +131,39 @@ int rnet_message_add_buffer(struct rnet_message **msg, char *key,
 {
 	return add_field(msg, key, strlen(key), buffer, len);
 }
+
+int rnet_message_parse(struct rnet_message *msg, char *skey,
+				char** value, int *vlen)
+{
+	char * buffer = msg->buffer;
+	size_t len = msg->len;
+	int i = 0;
+	unsigned int j;
+	int b;
+	char *key;
+	int klen;
+	char *kcopy;
+	/* skip first byte */
+	i++;
+	while (i < len) {
+		j = buffer[i];
+		b = j & 0x80;
+		if (b)
+			;
+		j = j & 0x7f;
+		i++;
+		key = buffer + i;
+		klen = j;
+		i += j;
+		j = buffer[i];
+		i++;
+		if (b)
+			j = j << 8 | buffer[i++];
+		*value = buffer + i;
+		*vlen = j;
+		i += j;
+		if (strlen(skey) == klen && !strncasecmp(key, skey, klen))
+			return 0;
+	}
+	return 1;
+}
diff --git a/rnet_message.h b/rnet_message.h
index 9fef77a..7e82e80 100644
--- a/rnet_message.h
+++ b/rnet_message.h
@@ -40,4 +40,7 @@ int rnet_message_add_u64(struct rnet_message **msg, char *key, uint64_t val);
 int rnet_message_add_buffer(struct rnet_message **msg, char *key,
 				char *buffer, size_t len);
 
+int rnet_message_parse(struct rnet_message *msg, char *skey,
+				char** value, int *vlen);
+
 #endif
-- 
2.20.1