From 6ebf9e1acc9df1707bbd614d63a84fe05dc2749e Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 20 Nov 2013 23:54:14 +0100
Subject: [PATCH] add a c version of the current uci_valisate call to the cli

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 validate/cli.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 115 insertions(+), 4 deletions(-)

diff --git a/validate/cli.c b/validate/cli.c
index dc5e96b..c0179e7 100644
--- a/validate/cli.c
+++ b/validate/cli.c
@@ -8,21 +8,132 @@
 #include <netinet/ether.h>
 #include <sys/stat.h>
 
+#include <uci.h>
+
 #include "libvalidate.h"
 
-int main(int argc, char **argv)
+static void
+print_usage(char *argv)
+{
+	fprintf(stderr, "%s <datatype> <value>\t- validate a value against a type\n", argv);
+	fprintf(stderr, "%s <package> <section_type> <section_name> 'option:datatype:default' 'option:datatype:default' ...\n", argv);
+}
+
+static char*
+bool_to_num(char *val)
 {
+	static char val0[] = "0";
+	static char val1[] = "1";
+	static char val_none[] = "";
+
+	if (!strcmp(val, "0") || !strcmp(val, "off") || !strcmp(val, "false") || !strcmp(val, "disabled"))
+		return val0;
+	if (!strcmp(val, "1") || !strcmp(val, "on") || !strcmp(val, "true") || !strcmp(val, "enabled"))
+		return val1;
+
+	return val_none;
+}
+
+static int
+validate_option(struct uci_context *ctx, char *package, char *section, char *option)
+{
+	char *datatype = strstr(option, ":");
+	struct uci_ptr ptr = { 0 };
+	char *val;
+	int ret = 0;
+
+	if (!datatype) {
+		fprintf(stderr, "%s is not a valid option\n", option);
+		return -1;
+	}
+
+	*datatype = '\0';
+	datatype++;
+	val = strstr(datatype, ":");
+	if (val) {
+		*val = '\0';
+		val++;
+	}
+
+	ptr.package = package;
+	ptr.section = section;
+	ptr.option = option;
+
+	if (!uci_lookup_ptr(ctx, &ptr, NULL, false))
+		if (ptr.flags & UCI_LOOKUP_COMPLETE)
+			if (ptr.last->type == UCI_TYPE_OPTION)
+				if ( ptr.o->type == UCI_TYPE_STRING)
+					if (ptr.o->v.string)
+						val = ptr.o->v.string;
+
+	if (val) {
+		ret = dt_parse(datatype, val);
+		fprintf(stderr, "%s.%s.%s=%s validates as %s with %s\n", package, section, option,
+			val, datatype, ret ? "true" : "false");
+	}
+
+	if (ret && !strcmp(datatype, "bool"))
+		printf("%s=%s; ", option, bool_to_num(val));
+	else if (ret)
+		printf("%s=%s; ", option, val);
+	else
+		printf("unset -v %s; ", option);
+
+	return ret;
+}
+
+int
+main(int argc, char **argv)
+{
+	struct uci_context *ctx;
+	struct uci_package *package;
+	int len = argc - 4;
 	bool rv;
+	int i;
 
 	if (argc == 3) {
 		rv = dt_parse(argv[1], argv[2]);
+		fprintf(stderr, "%s - %s = %s\n", argv[1], argv[2], rv ? "true" : "false");
+		return rv ? 0 : 1;
+	} else if (argc < 5) {
+		print_usage(*argv);
+		return -1;
+	}
 
-		printf("%s - %s = %s\n", argv[1], argv[2], rv ? "true" : "false");
+	if (*argv[3] == '\0') {
+		printf("json_add_object; ");
+		printf("json_add_string \"package\" \"%s\"; ", argv[1]);
+		printf("json_add_string \"type\" \"%s\"; ", argv[2]);
+		printf("json_add_object \"data\"; ");
 
-		return rv ? 0 : 1;
-	} else if (argc > 3) {
+		for (i = 0; i < len; i++) {
+			char *datatype = strstr(argv[4 + i], ":");
+			char *def;
+
+			if (!datatype)
+				continue;
+			*datatype = '\0';
+			datatype++;
+			def = strstr(datatype, ":");
+			if (def)
+				*def = '\0';
+			printf("json_add_string \"%s\" \"%s\"; ", argv[4 + i], datatype);
+		}
+		printf("json_close_object; ");
+		printf("json_close_object; ");
 
+		return 0;
 	}
 
+	ctx = uci_alloc_context();
+	if (!ctx)
+		return -1;
+
+	if (uci_load(ctx, argv[1], &package))
+		return -1;
+
+	for (i = 0; i < len; i++)
+		validate_option(ctx, argv[1], argv[3], argv[4 + i]);
+
 	return 0;
 }
-- 
2.25.1