A local copy of OpenSSL from GitHub
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/*
* Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/pkcs12.h>
/* Simple PKCS#12 file reader */
static char *find_friendly_name(PKCS12 *p12)
{
STACK_OF(PKCS7) *safes;
int n, m;
char *name = NULL;
PKCS7 *safe;
STACK_OF(PKCS12_SAFEBAG) *bags;
PKCS12_SAFEBAG *bag;
if ((safes = PKCS12_unpack_authsafes(p12)) == NULL)
return NULL;
for (n = 0; n < sk_PKCS7_num(safes) && name == NULL; n++) {
safe = sk_PKCS7_value(safes, n);
if (OBJ_obj2nid(safe->type) != NID_pkcs7_data
|| (bags = PKCS12_unpack_p7data(safe)) == NULL)
continue;
for (m = 0; m < sk_PKCS12_SAFEBAG_num(bags) && name == NULL; m++) {
bag = sk_PKCS12_SAFEBAG_value(bags, m);
name = PKCS12_get_friendlyname(bag);
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
}
sk_PKCS7_pop_free(safes, PKCS7_free);
return name;
}
int main(int argc, char **argv)
{
FILE *fp;
EVP_PKEY *pkey = NULL;
X509 *cert = NULL;
STACK_OF(X509) *ca = NULL;
PKCS12 *p12 = NULL;
char *name = NULL;
int i, ret = EXIT_FAILURE;
if (argc != 4) {
fprintf(stderr, "Usage: pkread p12file password opfile\n");
exit(EXIT_FAILURE);
}
if ((fp = fopen(argv[1], "rb")) == NULL) {
fprintf(stderr, "Error opening file %s\n", argv[1]);
exit(EXIT_FAILURE);
}
p12 = d2i_PKCS12_fp(fp, NULL);
fclose(fp);
if (p12 == NULL) {
fprintf(stderr, "Error reading PKCS#12 file\n");
ERR_print_errors_fp(stderr);
goto err;
}
if (!PKCS12_parse(p12, argv[2], &pkey, &cert, &ca)) {
fprintf(stderr, "Error parsing PKCS#12 file\n");
ERR_print_errors_fp(stderr);
goto err;
}
name = find_friendly_name(p12);
PKCS12_free(p12);
if ((fp = fopen(argv[3], "w")) == NULL) {
fprintf(stderr, "Error opening file %s\n", argv[3]);
goto err;
}
if (name != NULL)
fprintf(fp, "***Friendly Name***\n%s\n", name);
if (pkey != NULL) {
fprintf(fp, "***Private Key***\n");
PEM_write_PrivateKey(fp, pkey, NULL, NULL, 0, NULL, NULL);
}
if (cert != NULL) {
fprintf(fp, "***User Certificate***\n");
PEM_write_X509_AUX(fp, cert);
}
if (ca != NULL && sk_X509_num(ca) > 0) {
fprintf(fp, "***Other Certificates***\n");
for (i = 0; i < sk_X509_num(ca); i++)
PEM_write_X509_AUX(fp, sk_X509_value(ca, i));
}
fclose(fp);
ret = EXIT_SUCCESS;
err:
OPENSSL_free(name);
X509_free(cert);
EVP_PKEY_free(pkey);
sk_X509_pop_free(ca, X509_free);
return ret;
}