1.添加扫描框架maat,根据json文件初始化keyring链

2.添加源证书时签发流程

src/components/json/parse_flags.c

@@ -0,0 +1,50 @@
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "json.h"
+#include "parse_flags.h"
+
+#if !defined(HAVE_STRCASECMP) && defined(_MSC_VER)
+# define strcasecmp _stricmp
+#elif !defined(HAVE_STRCASECMP)
+# error You do not have strcasecmp on your system.
+#endif /* HAVE_STRNCASECMP */
+
+static struct {
+	const char *arg;
+	int flag;
+} format_args[] = {
+	{ "plain", JSON_C_TO_STRING_PLAIN },
+	{ "spaced", JSON_C_TO_STRING_SPACED },
+	{ "pretty", JSON_C_TO_STRING_PRETTY },
+};
+
+#ifndef NELEM
+#define NELEM(x) (sizeof(x) / sizeof(&x[0]))
+#endif
+
+int parse_flags(int argc, char **argv)
+{
+	int arg_idx;
+	int sflags = 0;
+	for (arg_idx = 1; arg_idx < argc ; arg_idx++)
+	{
+		int jj;
+		for (jj = 0; jj < (int)NELEM(format_args); jj++)
+		{
+			if (strcasecmp(argv[arg_idx], format_args[jj].arg) == 0)
+			{
+				sflags |= format_args[jj].flag;
+				break;
+			}
+		}
+		if (jj == NELEM(format_args))
+		{
+			printf("Unknown arg: %s\n", argv[arg_idx]);
+			exit(1);
+		}
+	}
+	return sflags;
+}