Update X.509 Extensions

tools/crlget.c

@@ -0,0 +1,91 @@
+/*
+ *  Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License); you may
+ *  not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <gmssl/pem.h>
+#include <gmssl/x509.h>
+#include <gmssl/http.h>
+
+
+static const char *usage = "[-in pem] [-out file]\n";
+
+static const char *options =
+"Options\n"
+"\n"
+"    -in pem | stdin        Input certificates in PEM format.\n"
+"    -out der | stdout      Output CRL file in DER-encoding\n"
+"\n"
+"Examples\n"
+"\n"
+"    gmssl crlget -in cert.pem -out crl.der\n"
+"\n";
+
+int certparse_main(int argc, char **argv)
+{
+	int ret = 1;
+	char *prog = argv[0];
+	char *infile = NULL;
+	char *outfile = NULL;
+	FILE *infp = stdin;
+	FILE *outfp = stdout;
+	uint8_t cert[18192];
+	size_t certlen;
+
+	argc--;
+	argv++;
+
+	while (argc > 0) {
+		if (!strcmp(*argv, "-help")) {
+			printf("usage: gmssl %s %s\n\n", prog, options);
+			printf("%s\n", usage);
+			goto end;
+		} else if (!strcmp(*argv, "-in")) {
+			if (--argc < 1) goto bad;
+			infile = *(++argv);
+			if (!(infp = fopen(infile, "rb"))) {
+				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
+				goto end;
+			}
+		} else if (!strcmp(*argv, "-out")) {
+			if (--argc < 1) goto bad;
+			outfile = *(++argv);
+			if (!(outfp = fopen(outfile, "wb"))) {
+				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
+				goto end;
+			}
+		} else {
+			fprintf(stderr, "%s: illegal option `%s`\n", prog, *argv);
+			goto end;
+bad:
+			fprintf(stderr, "%s: `%s` option value missing\n", prog, *argv);
+			goto end;
+		}
+
+		argc--;
+		argv++;
+	}
+
+	if (x509_cert_from_pem(cert, &certlen, sizeof(cert), infp) != 1) {
+		goto end;
+	}
+	if (x509_cert_get_exts(cert, certlen, &exts, &extslen) != 1) {
+		goto end;
+	}
+	if (x509_exts_get_ext_by_oid(exts, extslen, OID_ce_crl_
+
+
+end:
+	if (infile && infp) fclose(infp);
+	if (outfile && outfp) fclose(outfp);
+	return ret;
+}