MEDIUM: sample: Add type any

This type is used to accept any type of sample as input, and prevent
any automatic "cast". It runs like the type "ADDR" which accept the
type "IPV4" and "IPV6".
diff --git a/include/types/sample.h b/include/types/sample.h
index 0d0aef7..2f3cfbf 100644
--- a/include/types/sample.h
+++ b/include/types/sample.h
@@ -33,7 +33,8 @@
 
 /* input and output sample types */
 enum {
-	SMP_T_BOOL = 0,  /* boolean */
+	SMP_T_ANY = 0,   /* any type */
+	SMP_T_BOOL,      /* boolean */
 	SMP_T_UINT,      /* unsigned 32bits integer type */
 	SMP_T_SINT,      /* signed 32bits integer type */
 	SMP_T_ADDR,      /* ipv4 or ipv6, only used for input type compatibility */
diff --git a/src/sample.c b/src/sample.c
index c5192f4..cf247c2 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -38,6 +38,7 @@
 
 /* sample type names */
 const char *smp_to_type[SMP_TYPES] = {
+	[SMP_T_ANY]  = "any",
 	[SMP_T_BOOL] = "bool",
 	[SMP_T_UINT] = "uint",
 	[SMP_T_SINT] = "sint",
@@ -796,16 +797,17 @@
 /*****************************************************************/
 
 sample_cast_fct sample_casts[SMP_TYPES][SMP_TYPES] = {
-/*            to:  BOOL       UINT       SINT       ADDR        IPV4      IPV6        STR         BIN         METH */
-/* from: BOOL */ { c_none,    c_none,    c_none,    NULL,       NULL,     NULL,       c_int2str,  NULL,       NULL,       },
-/*       UINT */ { c_none,    c_none,    c_none,    c_int2ip,   c_int2ip, NULL,       c_int2str,  c_int2bin,  NULL,       },
-/*       SINT */ { c_none,    c_none,    c_none,    c_int2ip,   c_int2ip, NULL,       c_sint2str, c_int2bin,  NULL,       },
-/*       ADDR */ { NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       NULL,       NULL,       NULL,       },
-/*       IPV4 */ { NULL,      c_ip2int,  c_ip2int,  c_none,     c_none,   c_ip2ipv6,  c_ip2str,   c_addr2bin, NULL,       },
-/*       IPV6 */ { NULL,      NULL,      NULL,      c_none,     NULL,     c_none,     c_ipv62str, c_addr2bin, NULL,       },
-/*        STR */ { c_str2int, c_str2int, c_str2int, c_str2addr, c_str2ip, c_str2ipv6, c_none,     c_none,     c_str2meth, },
-/*        BIN */ { NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       c_bin2str,  c_none,     c_str2meth, },
-/*       METH */ { NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       c_meth2str, c_meth2str, c_none,     },
+/*            to:  ANY     BOOL       UINT       SINT       ADDR        IPV4      IPV6        STR         BIN         METH */
+/* from:  ANY */ { c_none, c_none,    c_none,    c_none,    c_none,     c_none,   c_none,     c_none,     c_none,     c_none,     },
+/*       BOOL */ { c_none, c_none,    c_none,    c_none,    NULL,       NULL,     NULL,       c_int2str,  NULL,       NULL,       },
+/*       UINT */ { c_none, c_none,    c_none,    c_none,    c_int2ip,   c_int2ip, NULL,       c_int2str,  c_int2bin,  NULL,       },
+/*       SINT */ { c_none, c_none,    c_none,    c_none,    c_int2ip,   c_int2ip, NULL,       c_sint2str, c_int2bin,  NULL,       },
+/*       ADDR */ { c_none, NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       NULL,       NULL,       NULL,       },
+/*       IPV4 */ { c_none, NULL,      c_ip2int,  c_ip2int,  c_none,     c_none,   c_ip2ipv6,  c_ip2str,   c_addr2bin, NULL,       },
+/*       IPV6 */ { c_none, NULL,      NULL,      NULL,      c_none,     NULL,     c_none,     c_ipv62str, c_addr2bin, NULL,       },
+/*        STR */ { c_none, c_str2int, c_str2int, c_str2int, c_str2addr, c_str2ip, c_str2ipv6, c_none,     c_none,     c_str2meth, },
+/*        BIN */ { c_none, NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       c_bin2str,  c_none,     c_str2meth, },
+/*       METH */ { c_none, NULL,      NULL,      NULL,      NULL,       NULL,     NULL,       c_meth2str, c_meth2str, c_none,     }
 };
 
 /*