1 files changed, 138 insertions, 0 deletions
diff --git a/src/tool/pkcs12.cc b/src/tool/pkcs12.cc
new file mode 100644
index 0000000..e0133e5
--- /dev/null
+++ b/src/tool/pkcs12.cc
@@ -0,0 +1,138 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/base.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#if defined(OPENSSL_WINDOWS)
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <openssl/bytestring.h>
+#include <openssl/pem.h>
+#include <openssl/pkcs8.h>
+#include <openssl/stack.h>
+
+#include "internal.h"
+
+
+#if defined(OPENSSL_WINDOWS)
+typedef int read_result_t;
+#else
+typedef ssize_t read_result_t;
+#endif
+
+static const struct argument kArguments[] = {
+    {
+     "-dump", false, "Dump the key and contents of the given file to stdout",
+    },
+    {
+     "", false, "",
+    },
+};
+
+bool DoPKCS12(const std::vector<std::string> &args) {
+  std::map<std::string, std::string> args_map;
+
+  if (!ParseKeyValueArguments(&args_map, args, kArguments) ||
+      args_map["-dump"].empty()) {
+    PrintUsage(kArguments);
+    return false;
+  }
+
+  int fd = open(args_map["-dump"].c_str(), O_RDONLY);
+  if (fd < 0) {
+    perror("open");
+    return false;
+  }
+
+  struct stat st;
+  if (fstat(fd, &st)) {
+    perror("fstat");
+    close(fd);
+    return false;
+  }
+  const size_t size = st.st_size;
+
+  std::unique_ptr<uint8_t[]> contents(new uint8_t[size]);
+  read_result_t n;
+  size_t off = 0;
+  do {
+    n = read(fd, &contents[off], size - off);
+    if (n >= 0) {
+      off += static_cast<size_t>(n);
+    }
+  } while ((n > 0 && off < size) || (n == -1 && errno == EINTR));
+
+  if (off != size) {
+    perror("read");
+    close(fd);
+    return false;
+  }
+
+  close(fd);
+
+  printf("Enter password: ");
+  fflush(stdout);
+
+  char password[256];
+  off = 0;
+  do {
+    n = read(0, &password[off], sizeof(password) - 1 - off);
+    if (n >= 0) {
+      off += static_cast<size_t>(n);
+    }
+  } while ((n > 0 && memchr(password, '\n', off) == NULL &&
+            off < sizeof(password) - 1) ||
+           (n == -1 && errno == EINTR));
+
+  char *newline = reinterpret_cast<char*>(memchr(password, '\n', off));
+  if (newline == NULL) {
+    return false;
+  }
+  *newline = 0;
+
+  CBS pkcs12;
+  CBS_init(&pkcs12, contents.get(), size);
+
+  EVP_PKEY *key;
+  STACK_OF(X509) *certs = sk_X509_new_null();
+
+  if (!PKCS12_get_key_and_certs(&key, certs, &pkcs12, password)) {
+    fprintf(stderr, "Failed to parse PKCS#12 data:\n");
+    BIO_print_errors_fp(stderr);
+    return false;
+  }
+
+  PEM_write_PrivateKey(stdout, key, NULL, NULL, 0, NULL, NULL);
+  EVP_PKEY_free(key);
+
+  for (size_t i = 0; i < sk_X509_num(certs); i++) {
+    PEM_write_X509(stdout, sk_X509_value(certs, i));
+  }
+  sk_X509_pop_free(certs, X509_free);
+
+  return true;
+}