| /* |
| * Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| * |
| * This file is part of LIBTASN1. |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| /* Written by Simon Josefsson */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <limits.h> |
| |
| #include "libtasn1.h" |
| |
| int |
| main (int argc, char **argv) |
| { |
| /* Test that values larger than long are rejected. This has worked |
| fine with all versions of libtasn1. */ |
| int verbose = 0; |
| |
| if (argc > 1) |
| verbose = 1; |
| |
| { |
| unsigned char der[] = "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"; |
| long l; |
| int len; |
| |
| l = asn1_get_length_der (der, sizeof der, &len); |
| |
| if (l == -2L) |
| { |
| if (verbose) |
| puts ("OK: asn1_get_length_der bignum"); |
| } |
| else |
| { |
| printf ("ERROR: asn1_get_length_der bignum (l %ld len %d)\n", l, len); |
| return 1; |
| } |
| } |
| |
| /* Test that values larger than int but smaller than long are |
| rejected. This limitation was introduced with libtasn1 2.12. */ |
| if (LONG_MAX > INT_MAX) |
| { |
| unsigned long num = ((long) UINT_MAX) << 2; |
| unsigned char der[20]; |
| int der_len; |
| long l; |
| int len; |
| |
| asn1_length_der (num, der, &der_len); |
| |
| l = asn1_get_length_der (der, der_len, &len); |
| |
| if (l == -2L) |
| { |
| if (verbose) |
| puts ("OK: asn1_get_length_der intnum"); |
| } |
| else |
| { |
| printf ("ERROR: asn1_get_length_der intnum (l %ld len %d)\n", l, |
| len); |
| return 1; |
| } |
| } |
| |
| /* Test that values larger than would fit in the input string are |
| rejected. This problem was fixed in libtasn1 2.12. */ |
| { |
| unsigned long num = 64; |
| unsigned char der[20]; |
| int der_len; |
| long l; |
| int len; |
| |
| asn1_length_der (num, der, &der_len); |
| |
| der_len = sizeof (der); |
| l = asn1_get_length_der (der, der_len, &len); |
| |
| if (l == -4L) |
| { |
| if (verbose) |
| puts ("OK: asn1_get_length_der overflow-small"); |
| } |
| else |
| { |
| printf ("ERROR: asn1_get_length_der overflow-small (l %ld len %d)\n", |
| l, len); |
| return 1; |
| } |
| } |
| |
| /* Test that values larger than would fit in the input string are |
| rejected. This problem was fixed in libtasn1 2.12. */ |
| { |
| unsigned long num = 1073741824; |
| unsigned char der[20]; |
| int der_len; |
| long l; |
| int len; |
| |
| asn1_length_der (num, der, &der_len); |
| |
| der_len = sizeof (der); |
| l = asn1_get_length_der (der, der_len, &len); |
| |
| if (l == -4L) |
| { |
| if (verbose) |
| puts ("OK: asn1_get_length_der overflow-large1"); |
| } |
| else |
| { |
| printf ("ERROR: asn1_get_length_der overflow-large1 (l %ld len %d)\n", |
| l, len); |
| return 1; |
| } |
| } |
| |
| /* Test that values larger than would fit in the input string are |
| rejected. This problem was fixed in libtasn1 2.12. */ |
| { |
| unsigned long num = 2147483649; |
| unsigned char der[20]; |
| int der_len; |
| long l; |
| int len; |
| |
| asn1_length_der (num, der, &der_len); |
| |
| der_len = sizeof (der); |
| l = asn1_get_length_der (der, der_len, &len); |
| |
| if (l == -2L) |
| { |
| if (verbose) |
| puts ("OK: asn1_get_length_der overflow-large2"); |
| } |
| else |
| { |
| printf ("ERROR: asn1_get_length_der overflow-large2 (l %ld len %d)\n", |
| l, len); |
| return 1; |
| } |
| } |
| |
| return 0; |
| } |