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| 1 /* Check for overflow in reading the padding length. | |
| 2 * Example by Jüri Aedla and Ralph Giles | |
| 3 * http://lists.xiph.org/pipermail/opus/2012-November/001834.html | |
| 4 */ | |
| 5 | |
| 6 #include <stdio.h> | |
| 7 #include <stdlib.h> | |
| 8 #include <string.h> | |
| 9 #include "opus.h" | |
| 10 #include "test_opus_common.h" | |
| 11 | |
| 12 #define PACKETSIZE 16909318 | |
| 13 #define CHANNELS 2 | |
| 14 #define FRAMESIZE 5760 | |
| 15 | |
| 16 int test_overflow(void) | |
| 17 { | |
| 18 OpusDecoder *decoder; | |
| 19 int result; | |
| 20 int error; | |
| 21 | |
| 22 unsigned char *in = malloc(PACKETSIZE); | |
| 23 opus_int16 *out = malloc(FRAMESIZE*CHANNELS*sizeof(*out)); | |
| 24 | |
| 25 fprintf(stderr, " Checking for padding overflow... "); | |
| 26 if (!in || !out) { | |
| 27 fprintf(stderr, "FAIL (out of memory)\n"); | |
| 28 return -1; | |
| 29 } | |
| 30 in[0] = 0xff; | |
| 31 in[1] = 0x41; | |
| 32 memset(in + 2, 0xff, PACKETSIZE - 3); | |
| 33 in[PACKETSIZE-1] = 0x0b; | |
| 34 | |
| 35 decoder = opus_decoder_create(48000, CHANNELS, &error); | |
| 36 result = opus_decode(decoder, in, PACKETSIZE, out, FRAMESIZE, 0); | |
| 37 opus_decoder_destroy(decoder); | |
| 38 | |
| 39 free(in); | |
| 40 free(out); | |
| 41 | |
| 42 if (result != OPUS_INVALID_PACKET) { | |
| 43 fprintf(stderr, "FAIL!\n"); | |
| 44 test_failed(); | |
| 45 } | |
| 46 | |
| 47 fprintf(stderr, "OK.\n"); | |
| 48 | |
| 49 return 1; | |
| 50 } | |
| 51 | |
| 52 int main(void) | |
| 53 { | |
| 54 const char *oversion; | |
| 55 int tests = 0;; | |
| 56 | |
| 57 iseed = 0; | |
| 58 oversion = opus_get_version_string(); | |
| 59 if (!oversion) test_failed(); | |
| 60 fprintf(stderr, "Testing %s padding.\n", oversion); | |
| 61 | |
| 62 tests += test_overflow(); | |
| 63 | |
| 64 fprintf(stderr, "All padding tests passed.\n"); | |
| 65 | |
| 66 return 0; | |
| 67 } | |
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