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-rw-r--r--wgtpkg-certs.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/wgtpkg-certs.c b/wgtpkg-certs.c
new file mode 100644
index 0000000..c103c51
--- /dev/null
+++ b/wgtpkg-certs.c
@@ -0,0 +1,74 @@
+/*
+ Copyright 2015 IoT.bzh
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+
+#include <syslog.h>
+#include <openssl/x509.h>
+
+#include "wgtpkg.h"
+
+struct x509l {
+ int count;
+ X509 **certs;
+};
+
+static struct x509l certificates = { .count = 0, .certs = NULL };
+
+static int add_certificate_x509(X509 *x)
+{
+ X509 **p = realloc(certificates.certs, (certificates.count + 1) * sizeof(X509*));
+ if (!p) {
+ syslog(LOG_ERR, "reallocation failed for certificate");
+ return -1;
+ }
+ certificates.certs = p;
+ p[certificates.count++] = x;
+ return 0;
+}
+
+static int add_certificate_bin(const char *bin, int len)
+{
+ int rc;
+ const unsigned char *b = (const unsigned char *)bin;
+ X509 *x = d2i_X509(NULL, &b, len);
+ if (x == NULL) {
+ syslog(LOG_ERR, "d2i_X509 failed");
+ return -1;
+ }
+ rc = add_certificate_x509(x);
+ if (rc)
+ X509_free(x);
+ return rc;
+}
+
+int add_certificate_b64(const char *b64)
+{
+ char *d;
+ int l = base64dec(b64, &d);
+ if (l > 0) {
+ l = add_certificate_bin(d, l);
+ free(d);
+ }
+ return l;
+}
+
+void clear_certificates()
+{
+ while(certificates.count)
+ X509_free(certificates.certs[--certificates.count]);
+}
+
+