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 <openssl/base.h>
16
17 #include <memory>
18 #include <string>
19 #include <vector>
20
21 #include <errno.h>
22 #include <fcntl.h>
23 #include <stdint.h>
24 #include <string.h>
25 #include <sys/stat.h>
26 #include <sys/types.h>
27 #if defined(OPENSSL_WINDOWS)
28 #include <io.h>
29 #else
30 #include <unistd.h>
31 #endif
32
33 #include <openssl/bytestring.h>
34 #include <openssl/err.h>
35 #include <openssl/pem.h>
36 #include <openssl/pkcs8.h>
37 #include <openssl/stack.h>
38
39 #include "internal.h"
40
41
42 #if defined(OPENSSL_WINDOWS)
43 typedef int read_result_t;
44 #else
45 typedef ssize_t read_result_t;
46 #endif
47
48 static const struct argument kArguments[] = {
49 {
50 "-dump", kOptionalArgument,
51 "Dump the key and contents of the given file to stdout",
52 },
53 {
54 "", kOptionalArgument, "",
55 },
56 };
57
DoPKCS12(const std::vector<std::string> & args)58 bool DoPKCS12(const std::vector<std::string> &args) {
59 std::map<std::string, std::string> args_map;
60
61 if (!ParseKeyValueArguments(&args_map, args, kArguments) ||
62 args_map["-dump"].empty()) {
63 PrintUsage(kArguments);
64 return false;
65 }
66
67 int fd = open(args_map["-dump"].c_str(), O_RDONLY);
68 if (fd < 0) {
69 perror("open");
70 return false;
71 }
72
73 struct stat st;
74 if (fstat(fd, &st)) {
75 perror("fstat");
76 close(fd);
77 return false;
78 }
79 const size_t size = st.st_size;
80
81 std::unique_ptr<uint8_t[]> contents(new uint8_t[size]);
82 read_result_t n;
83 size_t off = 0;
84 do {
85 n = read(fd, &contents[off], size - off);
86 if (n >= 0) {
87 off += static_cast<size_t>(n);
88 }
89 } while ((n > 0 && off < size) || (n == -1 && errno == EINTR));
90
91 if (off != size) {
92 perror("read");
93 close(fd);
94 return false;
95 }
96
97 close(fd);
98
99 printf("Enter password: ");
100 fflush(stdout);
101
102 char password[256];
103 off = 0;
104 do {
105 n = read(0, &password[off], sizeof(password) - 1 - off);
106 if (n >= 0) {
107 off += static_cast<size_t>(n);
108 }
109 } while ((n > 0 && memchr(password, '\n', off) == NULL &&
110 off < sizeof(password) - 1) ||
111 (n == -1 && errno == EINTR));
112
113 char *newline = reinterpret_cast<char*>(memchr(password, '\n', off));
114 if (newline == NULL) {
115 return false;
116 }
117 *newline = 0;
118
119 CBS pkcs12;
120 CBS_init(&pkcs12, contents.get(), size);
121
122 EVP_PKEY *key;
123 STACK_OF(X509) *certs = sk_X509_new_null();
124
125 if (!PKCS12_get_key_and_certs(&key, certs, &pkcs12, password)) {
126 fprintf(stderr, "Failed to parse PKCS#12 data:\n");
127 ERR_print_errors_fp(stderr);
128 return false;
129 }
130
131 if (key != NULL) {
132 PEM_write_PrivateKey(stdout, key, NULL, NULL, 0, NULL, NULL);
133 EVP_PKEY_free(key);
134 }
135
136 for (size_t i = 0; i < sk_X509_num(certs); i++) {
137 PEM_write_X509(stdout, sk_X509_value(certs, i));
138 }
139 sk_X509_pop_free(certs, X509_free);
140
141 return true;
142 }
143