1 files changed, 142 insertions, 0 deletions
diff --git a/tests/uri/uri.c b/tests/uri/uri.c
new file mode 100644
index 00000000..dc86bb6c
--- /dev/null
+++ b/tests/uri/uri.c
@@ -0,0 +1,142 @@
+/* $Id$ */
+
+/*
+ * Extract and test URIs from certificates.  This is a unit test of
+ * rcynic code, a utility, or both, depending on how it turns out.
+ *
+ * NB: OpenSSL insures that IA5 strings are null-terminated, so it's safe
+ * for us to ignore the length count.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <openssl/bio.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#include <openssl/safestack.h>
+
+static X509 *read_cert(const char *filename, int format, int verbose)
+{
+  X509 *x = NULL;
+  BIO *b;
+
+  if ((b = BIO_new_file(filename, "r")) == NULL)
+    goto done;
+
+  switch (format) {
+  case 'p':
+    x = PEM_read_bio_X509_AUX(b, NULL, NULL, NULL);
+    break;
+  case 'd':
+    x = d2i_X509_bio(b, NULL);
+    break;
+  }
+
+  if (verbose && x != NULL) {
+    X509_print_fp(stdout, x);
+    printf("\n");
+  }
+
+
+ done:
+  BIO_free(b);
+  return x;
+}
+
+#define	lose(msg) do { printf("Lost: %s\n", msg); goto done; } while (0)
+
+static void decode_crldp(X509 *x, int verbose)
+{
+  STACK_OF(DIST_POINT) *ds = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
+  DIST_POINT *d;
+  GENERAL_NAME *n;
+  char *s;
+  int i;
+
+  if (!ds)
+    lose("No CRLDP sequence");
+
+  if (sk_DIST_POINT_num(ds) != 1)
+    lose("CRLDP sequence does not have exactly one member");
+
+  d = sk_DIST_POINT_value(ds, 0);
+
+  if (d->reasons)
+    lose("CRLDP has reasons");
+
+  if (d->CRLissuer)
+    lose("CRLDP has CRLissuer");
+
+  if (!d->distpoint)
+    lose("CRLDP has no distributionPoint");
+
+  if (d->distpoint->type != 0)
+    lose("CRLDP does not contain general names");
+
+  for (i = 0; i < sk_GENERAL_NAME_num(d->distpoint->name.fullname); i++) {
+    n = sk_GENERAL_NAME_value(d->distpoint->name.fullname, i);
+    if (n->type != GEN_URI) {
+      printf("CRDLP name %d is type %d, not URI, skipping\n", i, n->type);
+      continue;
+    }
+    s = n->d.uniformResourceIdentifier->data;
+    if (strncmp(s, "rsync://", sizeof("rsync://") - 1)) {
+      printf("CRLDP name %d is not an rsync URI, skipping\n", i);
+      continue;
+    }
+    printf("CRLDP name %d: \"%s\"\n", i, s);
+  }
+
+ done:
+  sk_DIST_POINT_pop_free(ds, DIST_POINT_free);
+}
+
+int main(int argc, char *argv[])
+{
+  int c, format = 'p', ret = 0, verbose = 0;
+  X509 *x;
+
+  OpenSSL_add_all_algorithms();
+  ERR_load_crypto_strings();
+
+  while ((c = getopt(argc, argv, "pdv")) > 0) {
+    switch (c) {
+    case 'v':
+      verbose = 1;
+      break;
+    case 'p':
+    case 'd':
+      format = c;
+      break;
+    default:
+      fprintf(stderr, "usage: %s [-p | -d] cert [cert...]\n", argv[0]);
+      ret = 1;
+      goto done;
+    }
+  }
+
+  argc -= optind;
+  argv += optind;
+
+  while (argc-- > 0) {
+    printf("File %s\n", *argv);
+    if ((x = read_cert(*argv++, format, verbose)) == NULL) {
+      printf("Couldn't read certificate, skipping\n");
+      continue;
+    }
+#if 0
+    decode_aia(x, verbose);
+    decode_sia(x, verbose);
+#endif
+    decode_crldp(x, verbose);
+    X509_free(x);
+  }
+
+ done:
+  EVP_cleanup();
+  ERR_free_strings();
+  return ret;
+}