📄 sha1.c
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*/#define SHA1HANDSOFF#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))/* blk0() and blk() perform the initial expand. *//* I got the idea of expanding during the round function from SSLeay */#ifndef WORDS_BIGENDIAN#define blk0(i) (block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) | \ (rol(block->l[i], 8) & 0x00FF00FF))#else#define blk0(i) block->l[i]#endif#define blk(i) (block->l[i & 15] = rol(block->l[(i + 13) & 15] ^ \ block->l[(i + 8) & 15] ^ block->l[(i + 2) & 15] ^ block->l[i & 15], 1))/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */#define R0(v,w,x,y,z,i) \ z += ((w & (x ^ y)) ^ y) + blk0(i) + 0x5A827999 + rol(v, 5); \ w = rol(w, 30);#define R1(v,w,x,y,z,i) \ z += ((w & (x ^ y)) ^ y) + blk(i) + 0x5A827999 + rol(v, 5); \ w = rol(w, 30);#define R2(v,w,x,y,z,i) \ z += (w ^ x ^ y) + blk(i) + 0x6ED9EBA1 + rol(v, 5); w = rol(w, 30);#define R3(v,w,x,y,z,i) \ z += (((w | x) & y) | (w & x)) + blk(i) + 0x8F1BBCDC + rol(v, 5); \ w = rol(w, 30);#define R4(v,w,x,y,z,i) \ z += (w ^ x ^ y) + blk(i) + 0xCA62C1D6 + rol(v, 5); \ w=rol(w, 30);#ifdef VERBOSE /* SAK */void SHAPrintContext(SHA1_CTX *context, char *msg){ printf("%s (%d,%d) %x %x %x %x %x\n", msg, context->count[0], context->count[1], context->state[0], context->state[1], context->state[2], context->state[3], context->state[4]);}#endif/* Hash a single 512-bit block. This is the core of the algorithm. */static void SHA1Transform(u32 state[5], const unsigned char buffer[64]){ u32 a, b, c, d, e; typedef union { unsigned char c[64]; u32 l[16]; } CHAR64LONG16; CHAR64LONG16* block;#ifdef SHA1HANDSOFF u32 workspace[16]; block = (CHAR64LONG16 *) workspace; memcpy(block, buffer, 64);#else block = (CHAR64LONG16 *) buffer;#endif /* Copy context->state[] to working vars */ a = state[0]; b = state[1]; c = state[2]; d = state[3]; e = state[4]; /* 4 rounds of 20 operations each. Loop unrolled. */ R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); /* Add the working vars back into context.state[] */ state[0] += a; state[1] += b; state[2] += c; state[3] += d; state[4] += e; /* Wipe variables */ a = b = c = d = e = 0;#ifdef SHA1HANDSOFF memset(block, 0, 64);#endif}/* SHA1Init - Initialize new context */static void SHA1Init(SHA1_CTX* context){ /* SHA1 initialization constants */ context->state[0] = 0x67452301; context->state[1] = 0xEFCDAB89; context->state[2] = 0x98BADCFE; context->state[3] = 0x10325476; context->state[4] = 0xC3D2E1F0; context->count[0] = context->count[1] = 0;}/* Run your data through this. */static void SHA1Update(SHA1_CTX* context, const void *_data, u32 len){ u32 i, j; const unsigned char *data = _data;#ifdef VERBOSE SHAPrintContext(context, "before");#endif j = (context->count[0] >> 3) & 63; if ((context->count[0] += len << 3) < (len << 3)) context->count[1]++; context->count[1] += (len >> 29); if ((j + len) > 63) { memcpy(&context->buffer[j], data, (i = 64-j)); SHA1Transform(context->state, context->buffer); for ( ; i + 63 < len; i += 64) { SHA1Transform(context->state, &data[i]); } j = 0; } else i = 0; memcpy(&context->buffer[j], &data[i], len - i);#ifdef VERBOSE SHAPrintContext(context, "after ");#endif}/* Add padding and return the message digest. */static void SHA1Final(unsigned char digest[20], SHA1_CTX* context){ u32 i; unsigned char finalcount[8]; for (i = 0; i < 8; i++) { finalcount[i] = (unsigned char) ((context->count[(i >= 4 ? 0 : 1)] >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ } SHA1Update(context, (unsigned char *) "\200", 1); while ((context->count[0] & 504) != 448) { SHA1Update(context, (unsigned char *) "\0", 1); } SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ for (i = 0; i < 20; i++) { digest[i] = (unsigned char) ((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255); } /* Wipe variables */ i = 0; memset(context->buffer, 0, 64); memset(context->state, 0, 20); memset(context->count, 0, 8); memset(finalcount, 0, 8);}/* ===== end - public domain SHA1 implementation ===== */#endif /* EAP_TLS_FUNCS */#ifdef TEST_MAIN#include "md5.c"static int test_eap_fast(void){ /* draft-cam-winget-eap-fast-01.txt */ const u8 pac_key[] = { 0x0B, 0x97, 0x39, 0x0F, 0x37, 0x51, 0x78, 0x09, 0x81, 0x1E, 0xFD, 0x9C, 0x6E, 0x65, 0x94, 0x2B, 0x63, 0x2C, 0xE9, 0x53, 0x89, 0x38, 0x08, 0xBA, 0x36, 0x0B, 0x03, 0x7C, 0xD1, 0x85, 0xE4, 0x14 }; const u8 seed[] = { 0x3F, 0xFB, 0x11, 0xC4, 0x6C, 0xBF, 0xA5, 0x7A, 0x54, 0x40, 0xDA, 0xE8, 0x22, 0xD3, 0x11, 0xD3, 0xF7, 0x6D, 0xE4, 0x1D, 0xD9, 0x33, 0xE5, 0x93, 0x70, 0x97, 0xEB, 0xA9, 0xB3, 0x66, 0xF4, 0x2A, 0x00, 0x00, 0x00, 0x02, 0x6A, 0x66, 0x43, 0x2A, 0x8D, 0x14, 0x43, 0x2C, 0xEC, 0x58, 0x2D, 0x2F, 0xC7, 0x9C, 0x33, 0x64, 0xBA, 0x04, 0xAD, 0x3A, 0x52, 0x54, 0xD6, 0xA5, 0x79, 0xAD, 0x1E, 0x00 }; const u8 master_secret[] = { 0x4A, 0x1A, 0x51, 0x2C, 0x01, 0x60, 0xBC, 0x02, 0x3C, 0xCF, 0xBC, 0x83, 0x3F, 0x03, 0xBC, 0x64, 0x88, 0xC1, 0x31, 0x2F, 0x0B, 0xA9, 0xA2, 0x77, 0x16, 0xA8, 0xD8, 0xE8, 0xBD, 0xC9, 0xD2, 0x29, 0x38, 0x4B, 0x7A, 0x85, 0xBE, 0x16, 0x4D, 0x27, 0x33, 0xD5, 0x24, 0x79, 0x87, 0xB1, 0xC5, 0xA2 }; const u8 key_block[] = { 0x59, 0x59, 0xBE, 0x8E, 0x41, 0x3A, 0x77, 0x74, 0x8B, 0xB2, 0xE5, 0xD3, 0x60, 0xAC, 0x4D, 0x35, 0xDF, 0xFB, 0xC8, 0x1E, 0x9C, 0x24, 0x9C, 0x8B, 0x0E, 0xC3, 0x1D, 0x72, 0xC8, 0x84, 0x9D, 0x57, 0x48, 0x51, 0x2E, 0x45, 0x97, 0x6C, 0x88, 0x70, 0xBE, 0x5F, 0x01, 0xD3, 0x64, 0xE7, 0x4C, 0xBB, 0x11, 0x24, 0xE3, 0x49, 0xE2, 0x3B, 0xCD, 0xEF, 0x7A, 0xB3, 0x05, 0x39, 0x5D, 0x64, 0x8A, 0x44, 0x11, 0xB6, 0x69, 0x88, 0x34, 0x2E, 0x8E, 0x29, 0xD6, 0x4B, 0x7D, 0x72, 0x17, 0x59, 0x28, 0x05, 0xAF, 0xF9, 0xB7, 0xFF, 0x66, 0x6D, 0xA1, 0x96, 0x8F, 0x0B, 0x5E, 0x06, 0x46, 0x7A, 0x44, 0x84, 0x64, 0xC1, 0xC8, 0x0C, 0x96, 0x44, 0x09, 0x98, 0xFF, 0x92, 0xA8, 0xB4, 0xC6, 0x42, 0x28, 0x71 }; const u8 sks[] = { 0xD6, 0x4B, 0x7D, 0x72, 0x17, 0x59, 0x28, 0x05, 0xAF, 0xF9, 0xB7, 0xFF, 0x66, 0x6D, 0xA1, 0x96, 0x8F, 0x0B, 0x5E, 0x06, 0x46, 0x7A, 0x44, 0x84, 0x64, 0xC1, 0xC8, 0x0C, 0x96, 0x44, 0x09, 0x98, 0xFF, 0x92, 0xA8, 0xB4, 0xC6, 0x42, 0x28, 0x71 }; const u8 isk[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; const u8 imck[] = { 0x16, 0x15, 0x3C, 0x3F, 0x21, 0x55, 0xEF, 0xD9, 0x7F, 0x34, 0xAE, 0xC8, 0x1A, 0x4E, 0x66, 0x80, 0x4C, 0xC3, 0x76, 0xF2, 0x8A, 0xA9, 0x6F, 0x96, 0xC2, 0x54, 0x5F, 0x8C, 0xAB, 0x65, 0x02, 0xE1, 0x18, 0x40, 0x7B, 0x56, 0xBE, 0xEA, 0xA7, 0xC5, 0x76, 0x5D, 0x8F, 0x0B, 0xC5, 0x07, 0xC6, 0xB9, 0x04, 0xD0, 0x69, 0x56, 0x72, 0x8B, 0x6B, 0xB8, 0x15, 0xEC, 0x57, 0x7B }; const u8 msk[] = { 0x4D, 0x83, 0xA9, 0xBE, 0x6F, 0x8A, 0x74, 0xED, 0x6A, 0x02, 0x66, 0x0A, 0x63, 0x4D, 0x2C, 0x33, 0xC2, 0xDA, 0x60, 0x15, 0xC6, 0x37, 0x04, 0x51, 0x90, 0x38, 0x63, 0xDA, 0x54, 0x3E, 0x14, 0xB9, 0x27, 0x99, 0x18, 0x1E, 0x07, 0xBF, 0x0F, 0x5A, 0x5E, 0x3C, 0x32, 0x93, 0x80, 0x8C, 0x6C, 0x49, 0x67, 0xED, 0x24, 0xFE, 0x45, 0x40, 0xA0, 0x59, 0x5E, 0x37, 0xC2, 0xE9, 0xD0, 0x5D, 0x0A, 0xE3 }; u8 tlv[] = { 0x80, 0x0C, 0x00, 0x38, 0x00, 0x01, 0x01, 0x00, 0xD8, 0x6A, 0x8C, 0x68, 0x3C, 0x32, 0x31, 0xA8, 0x56, 0x63, 0xB6, 0x40, 0x21, 0xFE, 0x21, 0x14, 0x4E, 0xE7, 0x54, 0x20, 0x79, 0x2D, 0x42, 0x62, 0xC9, 0xBF, 0x53, 0x7F, 0x54, 0xFD, 0xAC, 0x58, 0x43, 0x24, 0x6E, 0x30, 0x92, 0x17, 0x6D, 0xCF, 0xE6, 0xE0, 0x69, 0xEB, 0x33, 0x61, 0x6A, 0xCC, 0x05, 0xC5, 0x5B, 0xB7 }; const u8 compound_mac[] = { 0x43, 0x24, 0x6E, 0x30, 0x92, 0x17, 0x6D, 0xCF, 0xE6, 0xE0, 0x69, 0xEB, 0x33, 0x61, 0x6A, 0xCC, 0x05, 0xC5, 0x5B, 0xB7 }; u8 buf[512]; const u8 *simck, *cmk; int errors = 0; printf("EAP-FAST test cases\n"); printf("- T-PRF (SHA1) test case / master_secret\n"); sha1_t_prf(pac_key, sizeof(pac_key), "PAC to master secret label hash", seed, sizeof(seed), buf, sizeof(master_secret)); if (memcmp(master_secret, buf, sizeof(master_secret)) != 0) { printf("T-PRF test - FAILED!\n"); errors++; } printf("- PRF (TLS, SHA1/MD5) test case / key_block\n"); tls_prf(master_secret, sizeof(master_secret), "key expansion", seed, sizeof(seed), buf, sizeof(key_block)); if (memcmp(key_block, buf, sizeof(key_block)) != 0) { printf("PRF test - FAILED!\n"); errors++; } printf("- T-PRF (SHA1) test case / IMCK\n"); sha1_t_prf(sks, sizeof(sks), "Inner Methods Compound Keys", isk, sizeof(isk), buf, sizeof(imck)); if (memcmp(imck, buf, sizeof(imck)) != 0) { printf("T-PRF test - FAILED!\n"); errors++; } simck = imck; cmk = imck + 40; printf("- T-PRF (SHA1) test case / MSK\n"); sha1_t_prf(simck, 40, "Session Key Generating Function", "", 0, buf, sizeof(msk)); if (memcmp(msk, buf, sizeof(msk)) != 0) { printf("T-PRF test - FAILED!\n"); errors++; } printf("- Compound MAC test case\n"); memset(tlv + sizeof(tlv) - 20, 0, 20); hmac_sha1(cmk, 20, tlv, sizeof(tlv), tlv + sizeof(tlv) - 20); if (memcmp(tlv + sizeof(tlv) - 20, compound_mac, sizeof(compound_mac)) != 0) { printf("Compound MAC test - FAILED!\n"); errors++; } return errors;}static u8 key0[] ={ 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b};static u8 data0[] = "Hi There";static u8 prf0[] ={ 0xbc, 0xd4, 0xc6, 0x50, 0xb3, 0x0b, 0x96, 0x84, 0x95, 0x18, 0x29, 0xe0, 0xd7, 0x5f, 0x9d, 0x54, 0xb8, 0x62, 0x17, 0x5e, 0xd9, 0xf0, 0x06, 0x06, 0xe1, 0x7d, 0x8d, 0xa3, 0x54, 0x02, 0xff, 0xee, 0x75, 0xdf, 0x78, 0xc3, 0xd3, 0x1e, 0x0f, 0x88, 0x9f, 0x01, 0x21, 0x20, 0xc0, 0x86, 0x2b, 0xeb, 0x67, 0x75, 0x3e, 0x74, 0x39, 0xae, 0x24, 0x2e, 0xdb, 0x83, 0x73, 0x69, 0x83, 0x56, 0xcf, 0x5a};static u8 key1[] = "Jefe";static u8 data1[] = "what do ya want for nothing?";static u8 prf1[] ={ 0x51, 0xf4, 0xde, 0x5b, 0x33, 0xf2, 0x49, 0xad, 0xf8, 0x1a, 0xeb, 0x71, 0x3a, 0x3c, 0x20, 0xf4, 0xfe, 0x63, 0x14, 0x46, 0xfa, 0xbd, 0xfa, 0x58, 0x24, 0x47, 0x59, 0xae, 0x58, 0xef, 0x90, 0x09, 0xa9, 0x9a, 0xbf, 0x4e, 0xac, 0x2c, 0xa5, 0xfa, 0x87, 0xe6, 0x92, 0xc4, 0x40, 0xeb, 0x40, 0x02, 0x3e, 0x7b, 0xab, 0xb2, 0x06, 0xd6, 0x1d, 0xe7, 0xb9, 0x2f, 0x41, 0x52, 0x90, 0x92, 0xb8, 0xfc};static u8 key2[] ={ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa};static u8 data2[] ={ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd};static u8 prf2[] ={ 0xe1, 0xac, 0x54, 0x6e, 0xc4, 0xcb, 0x63, 0x6f, 0x99, 0x76, 0x48, 0x7b, 0xe5, 0xc8, 0x6b, 0xe1, 0x7a, 0x02, 0x52, 0xca, 0x5d, 0x8d, 0x8d, 0xf1, 0x2c, 0xfb, 0x04, 0x73, 0x52, 0x52, 0x49, 0xce, 0x9d, 0xd8, 0xd1, 0x77, 0xea, 0xd7, 0x10, 0xbc, 0x9b, 0x59, 0x05, 0x47, 0x23, 0x91, 0x07, 0xae, 0xf7, 0xb4, 0xab, 0xd4, 0x3d, 0x87, 0xf0, 0xa6, 0x8f, 0x1c, 0xbd, 0x9e, 0x2b, 0x6f, 0x76, 0x07};struct passphrase_test { char *passphrase; char *ssid; char psk[32];};static struct passphrase_test passphrase_tests[] ={ { "password", "IEEE", { 0xf4, 0x2c, 0x6f, 0xc5, 0x2d, 0xf0, 0xeb, 0xef, 0x9e, 0xbb, 0x4b, 0x90, 0xb3, 0x8a, 0x5f, 0x90, 0x2e, 0x83, 0xfe, 0x1b, 0x13, 0x5a, 0x70, 0xe2, 0x3a, 0xed, 0x76, 0x2e, 0x97, 0x10, 0xa1, 0x2e } }, { "ThisIsAPassword", "ThisIsASSID", { 0x0d, 0xc0, 0xd6, 0xeb, 0x90, 0x55, 0x5e, 0xd6, 0x41, 0x97, 0x56, 0xb9, 0xa1, 0x5e, 0xc3, 0xe3, 0x20, 0x9b, 0x63, 0xdf, 0x70, 0x7d, 0xd5, 0x08, 0xd1, 0x45, 0x81, 0xf8, 0x98, 0x27, 0x21, 0xaf } }, { "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ", { 0xbe, 0xcb, 0x93, 0x86, 0x6b, 0xb8, 0xc3, 0x83, 0x2c, 0xb7, 0x77, 0xc2, 0xf5, 0x59, 0x80, 0x7c, 0x8c, 0x59, 0xaf, 0xcb, 0x6e, 0xae, 0x73, 0x48, 0x85, 0x00, 0x13, 0x00, 0xa9, 0x81, 0xcc, 0x62 } },};#define NUM_PASSPHRASE_TESTS \(sizeof(passphrase_tests) / sizeof(passphrase_tests[0]))int main(int argc, char *argv[]){ u8 res[512]; int ret = 0, i; printf("PRF-SHA1 test cases:\n"); sha1_prf(key0, sizeof(key0), "prefix", data0, sizeof(data0) - 1, res, sizeof(prf0)); if (memcmp(res, prf0, sizeof(prf0)) == 0) printf("Test case 0 - OK\n"); else { printf("Test case 0 - FAILED!\n"); ret++; } sha1_prf(key1, sizeof(key1) - 1, "prefix", data1, sizeof(data1) - 1, res, sizeof(prf1)); if (memcmp(res, prf1, sizeof(prf1)) == 0) printf("Test case 1 - OK\n"); else { printf("Test case 1 - FAILED!\n"); ret++; } sha1_prf(key2, sizeof(key2), "prefix", data2, sizeof(data2), res, sizeof(prf2)); if (memcmp(res, prf2, sizeof(prf2)) == 0) printf("Test case 2 - OK\n"); else { printf("Test case 2 - FAILED!\n"); ret++; } ret += test_eap_fast(); printf("PBKDF2-SHA1 Passphrase test cases:\n"); for (i = 0; i < NUM_PASSPHRASE_TESTS; i++) { u8 psk[32]; struct passphrase_test *test = &passphrase_tests[i]; pbkdf2_sha1(test->passphrase, test->ssid, strlen(test->ssid), 4096, psk, 32); if (memcmp(psk, test->psk, 32) == 0) printf("Test case %d - OK\n", i); else { printf("Test case %d - FAILED!\n", i); ret++; } } return ret;}#endif /* TEST_MAIN */
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