diff --git a/include/mappings.h b/include/mappings.h
index b00bd75..6e344ca 100644
--- a/include/mappings.h
+++ b/include/mappings.h
@@ -6,13 +6,14 @@
 #define ERR_UIRC_INVALID_FORMAT -3
 #define ERR_UIRC_BUFFER_ERR -4
 #define ERR_UIRC_UNKNOWN_TOKEN -5
+#define ERR_UIRC_VAL_FAILED -10
 
 /* Mode bitmask values */
 #define MBMASK_WALLOPS 2 /* 010 */
 #define MBMASK_INVIS 4   /* 100 */
 
 #define UIRC_FCMD ADMIN
-enum {
+enum commands {
 	ADMIN,
 	AWAY,
 	CONNECT,
diff --git a/include/uirc.h b/include/uirc.h
index b6d5207..44e090a 100644
--- a/include/uirc.h
+++ b/include/uirc.h
@@ -31,6 +31,13 @@ extern signed int Tok_user(char* str, IRC_User* out, bool useorig);
 extern signed int Assm_mesg(char* buf, IRC_Message* in);
 extern signed int Assm_user(char* buf, IRC_User* in, bool useorig);
 
+/* Validators: They check that the parsed message is valid and follows the standard */
+extern signed int Val_mesg(IRC_Message* mesg);
+extern signed int Val_channame(char* chan);
+extern signed int Val_type_nocrlf(char* str);
+extern signed int Val_type_nospcl(char* str);
+extern signed int Val_type_noblcm(char* str);
+
 #ifdef UIRC_IRCV3
 extern signed int Tok_tags(char* str, IRC_Tags* out);
 extern signed int Assm_tags(char* buf, IRC_Tags* in);
diff --git a/src/uirc.c b/src/uirc.c
index c3897f5..ef2f648 100644
--- a/src/uirc.c
+++ b/src/uirc.c
@@ -184,6 +184,72 @@ signed int Assm_mesg(char* buf, IRC_Message* in)
 		return ERR_UIRC_BUFFER_ERR;
 	return pos - buf;
 }
+signed int Val_mesg(IRC_Message* mesg)
+{
+	if (mesg == NULL)
+		return ERR_UIRC_NULL_ARGS;
+	for (unsigned int i = 0; i < 14 && mesg->args[i] != NULL; i++) {
+		if (Val_type_nocrlf(mesg->args[i]) != 1)
+			return ERR_UIRC_VAL_FAILED;
+		if (Val_type_nospcl(mesg->args[i]) != 1)
+			return ERR_UIRC_VAL_FAILED;
+	}
+	if (mesg->trailing != NULL) {
+		if (Val_type_nocrlf(mesg->trailing) != 1)
+			return ERR_UIRC_VAL_FAILED;
+	}
+	return 1;
+}
+signed int Val_type_nocrlf(char* str)
+{
+	if (str == NULL)
+		return ERR_UIRC_NULL_ARGS;
+	for (; *str; str++) {
+		if (*str == '\r' || *str == '\n')
+			return 0;
+	}
+	return 1;
+}
+signed int Val_type_nospcl(char* str)
+{
+	if (str == NULL)
+		return ERR_UIRC_NULL_ARGS;
+	for (; *str; str++) {
+		if (*str == ' ' || *str == ':')
+			return 0;
+	}
+	return 1;
+}
+signed int Val_type_noblcm(char* str)
+{
+	if (str == NULL)
+		return ERR_UIRC_NULL_ARGS;
+	for (; *str; str++) {
+		if (*str == '\a' || *str == ',')
+			return 0;
+	}
+	return 1;
+}
+signed int Val_channame(char* chan)
+{
+	if (chan == NULL)
+		return ERR_UIRC_NULL_ARGS;
+	if (*chan != '#' || *chan != '+' || *chan != '!' || *chan != '&')
+		return 0;
+	char* clps = ++chan;
+	if ((clps = strchr(chan, ':')) != NULL) {
+		*clps = '\0';
+		if (Val_type_nospcl(chan) != 1 || Val_type_nocrlf(chan) != 1 || Val_type_noblcm(chan) != 1) {
+			*clps = ':';
+			return 0;
+		}
+		*clps = ':';
+		chan = ++clps;
+	}
+	if (Val_type_nospcl(chan) != 1 || Val_type_nocrlf(chan) != 1 || Val_type_noblcm(chan) != 1)
+		return 0;
+	return 1;
+}
 #ifdef UIRC_IRCV3
 signed int Assm_tags(char* buf, IRC_Tags* in)
 {