MEDIUM: pattern: replace type pattern_arg with type arg

arg is more complete than pattern_arg since it also covers ACL args,
so let's use this one instead.
diff --git a/src/proto_tcp.c b/src/proto_tcp.c
index b61aaf4..59d0d55 100644
--- a/src/proto_tcp.c
+++ b/src/proto_tcp.c
@@ -1275,7 +1275,7 @@
 /* extract the connection's source ipv4 address */
 static int
 pattern_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
-                  const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                  const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
 	if (l4->si[0].addr.from.ss_family != AF_INET )
 		return 0;
@@ -1287,7 +1287,7 @@
 /* extract the connection's source ipv6 address */
 static int
 pattern_fetch_src6(struct proxy *px, struct session *l4, void *l7, int dir,
-                  const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                  const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
 	if (l4->si[0].addr.from.ss_family != AF_INET6)
 		return 0;
@@ -1337,7 +1337,7 @@
 /* extract the connection's destination ipv4 address */
 static int
 pattern_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
-                  const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                  const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
 	stream_sock_get_to_addr(&l4->si[0]);
 
@@ -1351,7 +1351,7 @@
 /* extract the connection's destination ipv6 address */
 static int
 pattern_fetch_dst6(struct proxy *px, struct session *l4, void *l7, int dir,
-                  const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                  const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
 	stream_sock_get_to_addr(&l4->si[0]);
 
@@ -1378,7 +1378,7 @@
 
 static int
 pattern_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
-                    const struct pattern_arg *arg, int i, union pattern_data *data)
+                    const struct arg *arg, int i, union pattern_data *data)
 {
 	stream_sock_get_to_addr(&l4->si[0]);
 
@@ -1389,7 +1389,7 @@
 }
 
 static int
-pattern_arg_fetch_payloadlv(const char *arg, struct pattern_arg **arg_p, int *arg_i)
+pattern_arg_fetch_payloadlv(const char *arg, struct arg **arg_p, int *arg_i)
 {
 	int member = 0;
 	int len_offset = 0;
@@ -1446,24 +1446,24 @@
 	}
 
 	*arg_i = 3;
-	*arg_p = calloc(1, *arg_i*sizeof(struct pattern_arg));
-	(*arg_p)[0].type = PATTERN_ARG_TYPE_INTEGER;
-	(*arg_p)[0].data.integer = len_offset;
-	(*arg_p)[1].type = PATTERN_ARG_TYPE_INTEGER;
-	(*arg_p)[1].data.integer = len_size;
-	(*arg_p)[2].type = PATTERN_ARG_TYPE_INTEGER;
-	(*arg_p)[2].data.integer = buf_offset;
+	*arg_p = calloc(1, *arg_i*sizeof(struct arg));
+	(*arg_p)[0].type = ARGT_UINT;
+	(*arg_p)[0].data.uint = len_offset;
+	(*arg_p)[1].type = ARGT_UINT;
+	(*arg_p)[1].data.uint = len_size;
+	(*arg_p)[2].type = ARGT_UINT;
+	(*arg_p)[2].data.uint = buf_offset;
 
 	return 1;
 }
 
 static int
 pattern_fetch_payloadlv(struct proxy *px, struct session *l4, void *l7, int dir,
-                        const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                        const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
-	int len_offset = arg_p[0].data.integer;
-	int len_size = arg_p[1].data.integer;
-	int buf_offset = arg_p[2].data.integer;
+	int len_offset = arg_p[0].data.uint;
+	int len_size = arg_p[1].data.uint;
+	int buf_offset = arg_p[2].data.uint;
 	int buf_size = 0;
 	struct buffer *b;
 	int i;
@@ -1500,7 +1500,7 @@
 }
 
 static int
-pattern_arg_fetch_payload (const char *arg, struct pattern_arg **arg_p, int *arg_i)
+pattern_arg_fetch_payload (const char *arg, struct arg **arg_p, int *arg_i)
 {
 	int member = 0;
 	int buf_offset = 0;
@@ -1528,21 +1528,21 @@
 		return 0;
 
 	*arg_i = 2;
-	*arg_p = calloc(1, *arg_i*sizeof(struct pattern_arg));
-	(*arg_p)[0].type = PATTERN_ARG_TYPE_INTEGER;
-	(*arg_p)[0].data.integer = buf_offset;
-	(*arg_p)[1].type = PATTERN_ARG_TYPE_INTEGER;
-	(*arg_p)[1].data.integer = buf_size;
+	*arg_p = calloc(1, *arg_i*sizeof(struct arg));
+	(*arg_p)[0].type = ARGT_UINT;
+	(*arg_p)[0].data.uint = buf_offset;
+	(*arg_p)[1].type = ARGT_UINT;
+	(*arg_p)[1].data.uint = buf_size;
 
 	return 1;
 }
 
 static int
 pattern_fetch_payload(struct proxy *px, struct session *l4, void *l7, int dir,
-                      const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                      const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
-	int buf_offset = arg_p[0].data.integer;
-	int buf_size = arg_p[1].data.integer;
+	int buf_offset = arg_p[0].data.uint;
+	int buf_size = arg_p[1].data.uint;
 	struct buffer *b;
 
 	if (!l4)
@@ -1564,7 +1564,7 @@
 
 static int
 pattern_fetch_rdp_cookie(struct proxy *px, struct session *l4, void *l7, int dir,
-                         const struct pattern_arg *arg_p, int arg_i, union pattern_data *data)
+                         const struct arg *arg_p, int arg_i, union pattern_data *data)
 {
 	int ret;
 	struct acl_expr  expr;