Adam Langley | 8e16b6e | 2014-08-21 14:11:39 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2014, Google Inc. |
| 2 | * |
| 3 | * Permission to use, copy, modify, and/or distribute this software for any |
| 4 | * purpose with or without fee is hereby granted, provided that the above |
| 5 | * copyright notice and this permission notice appear in all copies. |
| 6 | * |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 10 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 12 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 13 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| 14 | |
| 15 | #include <memory> |
| 16 | #include <string> |
| 17 | #include <vector> |
| 18 | |
Piotr Sikora | bbac844 | 2014-08-26 16:18:20 -0700 | [diff] [blame] | 19 | #include <errno.h> |
Adam Langley | 8e16b6e | 2014-08-21 14:11:39 -0700 | [diff] [blame] | 20 | #include <fcntl.h> |
| 21 | #include <stdint.h> |
| 22 | #include <sys/stat.h> |
| 23 | #include <sys/types.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | #include <openssl/bytestring.h> |
| 27 | #include <openssl/pem.h> |
| 28 | #include <openssl/pkcs8.h> |
| 29 | #include <openssl/stack.h> |
| 30 | |
| 31 | #include "internal.h" |
| 32 | |
| 33 | |
| 34 | static const struct argument kArguments[] = { |
| 35 | { |
| 36 | "-dump", false, "Dump the key and contents of the given file to stdout", |
| 37 | }, |
| 38 | { |
| 39 | "", false, "", |
| 40 | }, |
| 41 | }; |
| 42 | |
Adam Langley | 5127db3 | 2014-09-19 10:49:56 -0700 | [diff] [blame] | 43 | bool DoPKCS12(const std::vector<std::string> &args) { |
Adam Langley | 8e16b6e | 2014-08-21 14:11:39 -0700 | [diff] [blame] | 44 | std::map<std::string, std::string> args_map; |
| 45 | |
| 46 | if (!ParseKeyValueArguments(&args_map, args, kArguments) || |
| 47 | args_map["-dump"].empty()) { |
| 48 | PrintUsage(kArguments); |
| 49 | return false; |
| 50 | } |
| 51 | |
| 52 | int fd = open(args_map["-dump"].c_str(), O_RDONLY); |
| 53 | if (fd < 0) { |
| 54 | perror("open"); |
| 55 | return false; |
| 56 | } |
| 57 | |
| 58 | struct stat st; |
| 59 | if (fstat(fd, &st)) { |
| 60 | perror("fstat"); |
| 61 | close(fd); |
| 62 | return false; |
| 63 | } |
| 64 | const size_t size = st.st_size; |
| 65 | |
| 66 | std::unique_ptr<uint8_t[]> contents(new uint8_t[size]); |
| 67 | ssize_t n; |
| 68 | size_t off = 0; |
| 69 | do { |
| 70 | n = read(fd, &contents[off], size - off); |
| 71 | if (n >= 0) { |
| 72 | off += static_cast<size_t>(n); |
| 73 | } |
| 74 | } while ((n > 0 && off < size) || (n == -1 && errno == EINTR)); |
| 75 | |
| 76 | if (off != size) { |
| 77 | perror("read"); |
| 78 | close(fd); |
| 79 | return false; |
| 80 | } |
| 81 | |
| 82 | close(fd); |
| 83 | |
| 84 | printf("Enter password: "); |
| 85 | fflush(stdout); |
| 86 | |
| 87 | char password[256]; |
| 88 | off = 0; |
| 89 | do { |
| 90 | n = read(0, &password[off], sizeof(password) - 1 - off); |
| 91 | if (n >= 0) { |
| 92 | off += static_cast<size_t>(n); |
| 93 | } |
| 94 | } while ((n > 0 && memchr(password, '\n', off) == NULL && |
| 95 | off < sizeof(password) - 1) || |
| 96 | (n == -1 && errno == EINTR)); |
| 97 | |
| 98 | char *newline = reinterpret_cast<char*>(memchr(password, '\n', off)); |
| 99 | if (newline == NULL) { |
| 100 | return false; |
| 101 | } |
| 102 | *newline = 0; |
| 103 | |
| 104 | CBS pkcs12; |
| 105 | CBS_init(&pkcs12, contents.get(), size); |
| 106 | |
| 107 | EVP_PKEY *key; |
| 108 | STACK_OF(X509) *certs = sk_X509_new_null(); |
| 109 | |
| 110 | if (!PKCS12_get_key_and_certs(&key, certs, &pkcs12, password)) { |
| 111 | fprintf(stderr, "Failed to parse PKCS#12 data:\n"); |
| 112 | BIO_print_errors_fp(stderr); |
| 113 | return false; |
| 114 | } |
| 115 | |
| 116 | PEM_write_PrivateKey(stdout, key, NULL, NULL, 0, NULL, NULL); |
| 117 | EVP_PKEY_free(key); |
| 118 | |
| 119 | for (size_t i = 0; i < sk_X509_num(certs); i++) { |
| 120 | PEM_write_X509(stdout, sk_X509_value(certs, i)); |
| 121 | } |
| 122 | sk_X509_pop_free(certs, X509_free); |
| 123 | |
| 124 | return true; |
| 125 | } |