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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL licenses, (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include "../e_os.h"
static const char *progname;
static void test_usage(void)
{
fprintf(stderr, "usage: %s certfile\n", progname);
}
static void print_errors(void)
{
unsigned long err;
char buffer[1024];
const char *file;
const char *data;
int line;
int flags;
while ((err = ERR_get_error_line_data(&file, &line, &data, &flags)) != 0) {
ERR_error_string_n(err, buffer, sizeof(buffer));
if (flags & ERR_TXT_STRING)
fprintf(stderr, "Error: %s:%s:%d:%s\n", buffer, file, line, data);
else
fprintf(stderr, "Error: %s:%s:%d\n", buffer, file, line);
}
}
static int test_certs(BIO *fp)
{
int count;
char *name = 0;
char *header = 0;
unsigned char *data = 0;
long len;
typedef X509 *(*d2i_X509_t)(X509 **, const unsigned char **, long);
typedef int (*i2d_X509_t)(X509 *, unsigned char **);
int err = 0;
for (count = 0;
!err && PEM_read_bio(fp, &name, &header, &data, &len);
++count) {
int trusted = strcmp(name, PEM_STRING_X509_TRUSTED) == 0;
d2i_X509_t d2i = trusted ? d2i_X509_AUX : d2i_X509;
i2d_X509_t i2d = trusted ? i2d_X509_AUX : i2d_X509;
X509 *cert = NULL;
const unsigned char *p = data;
unsigned char *buf = NULL;
unsigned char *bufp;
long enclen;
if (!trusted
&& strcmp(name, PEM_STRING_X509) != 0
&& strcmp(name, PEM_STRING_X509_OLD) != 0) {
fprintf(stderr, "unexpected PEM object: %s\n", name);
err = 1;
goto next;
}
cert = d2i(NULL, &p, len);
if (cert == NULL || (p - data) != len) {
fprintf(stderr, "error parsing input %s\n", name);
err = 1;
goto next;
}
/* Test traditional 2-pass encoding into caller allocated buffer */
enclen = i2d(cert, NULL);
if (len != enclen) {
fprintf(stderr, "encoded length %ld of %s != input length %ld\n",
enclen, name, len);
err = 1;
goto next;
}
if ((buf = bufp = OPENSSL_malloc(len)) == NULL) {
perror("malloc");
err = 1;
goto next;
}
enclen = i2d(cert, &bufp);
if (len != enclen) {
fprintf(stderr, "encoded length %ld of %s != input length %ld\n",
enclen, name, len);
err = 1;
goto next;
}
enclen = (long) (bufp - buf);
if (enclen != len) {
fprintf(stderr, "unexpected buffer position after encoding %s\n",
name);
err = 1;
goto next;
}
if (memcmp(buf, data, len) != 0) {
fprintf(stderr, "encoded content of %s does not match input\n",
name);
err = 1;
goto next;
}
OPENSSL_free(buf);
buf = NULL;
/* Test 1-pass encoding into library allocated buffer */
enclen = i2d(cert, &buf);
if (len != enclen) {
fprintf(stderr, "encoded length %ld of %s != input length %ld\n",
enclen, name, len);
err = 1;
goto next;
}
if (memcmp(buf, data, len) != 0) {
fprintf(stderr, "encoded content of %s does not match input\n",
name);
err = 1;
goto next;
}
if (trusted) {
/* Encode just the cert and compare with initial encoding */
OPENSSL_free(buf);
buf = NULL;
/* Test 1-pass encoding into library allocated buffer */
enclen = i2d(cert, &buf);
if (enclen > len) {
fprintf(stderr, "encoded length %ld of %s > input length %ld\n",
enclen, name, len);
err = 1;
goto next;
}
if (memcmp(buf, data, enclen) != 0) {
fprintf(stderr, "encoded cert content does not match input\n");
err = 1;
goto next;
}
}
/*
* If any of these were null, PEM_read() would have failed.
*/
next:
X509_free(cert);
OPENSSL_free(buf);
OPENSSL_free(name);
OPENSSL_free(header);
OPENSSL_free(data);
}
if (ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) {
/* Reached end of PEM file */
if (count > 0) {
ERR_clear_error();
return 1;
}
}
/* Some other PEM read error */
print_errors();
return 0;
}
int main(int argc, char *argv[])
{
BIO *bio_err;
const char *certfile;
const char *p;
int ret = 1;
progname = argv[0];
if (argc < 2) {
test_usage();
EXIT(ret);
}
bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
p = getenv("OPENSSL_DEBUG_MEMORY");
if (p != NULL && strcmp(p, "on") == 0)
CRYPTO_set_mem_debug(1);
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
while ((certfile = *++argv) != NULL) {
BIO *f = BIO_new_file(certfile, "r");
int ok;
if (f == NULL) {
fprintf(stderr, "%s: Error opening cert file: '%s': %s\n",
progname, certfile, strerror(errno));
EXIT(ret);
}
ret = !(ok = test_certs(f));
BIO_free(f);
if (!ok) {
printf("%s ERROR\n", certfile);
ret = 1;
break;
}
printf("%s OK\n", certfile);
}
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
if (CRYPTO_mem_leaks(bio_err) <= 0)
ret = 1;
#endif
BIO_free(bio_err);
EXIT(ret);
}
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