int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
                                int len)
{
    static const unsigned char *salt[3] = {
#ifndef CHARSET_EBCDIC
        (const unsigned char *)"A",
        (const unsigned char *)"BB",
        (const unsigned char *)"CCC",
#else
        (const unsigned char *)"\x41",
        (const unsigned char *)"\x42\x42",
        (const unsigned char *)"\x43\x43\x43",
#endif
    };
    unsigned char buf[EVP_MAX_MD_SIZE];
    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
    int i, ret = 0;
    unsigned int n;
#ifdef OPENSSL_SSL_TRACE_CRYPTO
    unsigned char *tmpout = out;
#endif
    if (ctx == NULL) {
        SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_MALLOC_FAILURE);
        return 0;
    }
    for (i = 0; i < 3; i++) {
        if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0
                || EVP_DigestUpdate(ctx, salt[i],
                                    strlen((const char *)salt[i])) <= 0
                || EVP_DigestUpdate(ctx, p, len) <= 0
                || EVP_DigestUpdate(ctx, &(s->s3->client_random[0]),
                                    SSL3_RANDOM_SIZE) <= 0
                || EVP_DigestUpdate(ctx, &(s->s3->server_random[0]),
                                    SSL3_RANDOM_SIZE) <= 0
                || EVP_DigestFinal_ex(ctx, buf, &n) <= 0
                || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0
                || EVP_DigestUpdate(ctx, p, len) <= 0
                || EVP_DigestUpdate(ctx, buf, n) <= 0
                || EVP_DigestFinal_ex(ctx, out, &n) <= 0) {
            SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_INTERNAL_ERROR);
            ret = 0;
            break;
        }
        out += n;
        ret += n;
    }
    EVP_MD_CTX_free(ctx);
#ifdef OPENSSL_SSL_TRACE_CRYPTO
    if (ret > 0 && s->msg_callback) {
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
                        p, len, s, s->msg_callback_arg);
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
                        s->s3->client_random, SSL3_RANDOM_SIZE,
                        s, s->msg_callback_arg);
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
                        s->s3->server_random, SSL3_RANDOM_SIZE,
                        s, s->msg_callback_arg);
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
                        tmpout, SSL3_MASTER_SECRET_SIZE,
                        s, s->msg_callback_arg);
    }
#endif
    OPENSSL_cleanse(buf, sizeof(buf));
    return (ret);
}
['int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,\n                                int len)\n{\n    static const unsigned char *salt[3] = {\n#ifndef CHARSET_EBCDIC\n        (const unsigned char *)"A",\n        (const unsigned char *)"BB",\n        (const unsigned char *)"CCC",\n#else\n        (const unsigned char *)"\\x41",\n        (const unsigned char *)"\\x42\\x42",\n        (const unsigned char *)"\\x43\\x43\\x43",\n#endif\n    };\n    unsigned char buf[EVP_MAX_MD_SIZE];\n    EVP_MD_CTX *ctx = EVP_MD_CTX_new();\n    int i, ret = 0;\n    unsigned int n;\n#ifdef OPENSSL_SSL_TRACE_CRYPTO\n    unsigned char *tmpout = out;\n#endif\n    if (ctx == NULL) {\n        SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_MALLOC_FAILURE);\n        return 0;\n    }\n    for (i = 0; i < 3; i++) {\n        if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0\n                || EVP_DigestUpdate(ctx, salt[i],\n                                    strlen((const char *)salt[i])) <= 0\n                || EVP_DigestUpdate(ctx, p, len) <= 0\n                || EVP_DigestUpdate(ctx, &(s->s3->client_random[0]),\n                                    SSL3_RANDOM_SIZE) <= 0\n                || EVP_DigestUpdate(ctx, &(s->s3->server_random[0]),\n                                    SSL3_RANDOM_SIZE) <= 0\n                || EVP_DigestFinal_ex(ctx, buf, &n) <= 0\n                || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0\n                || EVP_DigestUpdate(ctx, p, len) <= 0\n                || EVP_DigestUpdate(ctx, buf, n) <= 0\n                || EVP_DigestFinal_ex(ctx, out, &n) <= 0) {\n            SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_INTERNAL_ERROR);\n            ret = 0;\n            break;\n        }\n        out += n;\n        ret += n;\n    }\n    EVP_MD_CTX_free(ctx);\n#ifdef OPENSSL_SSL_TRACE_CRYPTO\n    if (ret > 0 && s->msg_callback) {\n        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,\n                        p, len, s, s->msg_callback_arg);\n        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,\n                        s->s3->client_random, SSL3_RANDOM_SIZE,\n                        s, s->msg_callback_arg);\n        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,\n                        s->s3->server_random, SSL3_RANDOM_SIZE,\n                        s, s->msg_callback_arg);\n        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,\n                        tmpout, SSL3_MASTER_SECRET_SIZE,\n                        s, s->msg_callback_arg);\n    }\n#endif\n    OPENSSL_cleanse(buf, sizeof(buf));\n    return (ret);\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n    return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n    void *ret = CRYPTO_malloc(num, file, line);\n    if (ret != NULL)\n        memset(ret, 0, num);\n    return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n    void *ret = NULL;\n    if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n        return malloc_impl(num, file, line);\n    if (num <= 0)\n        return NULL;\n    allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n        ret = malloc(num);\n        CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n    } else {\n        ret = malloc(num);\n    }\n#else\n    osslargused(file); osslargused(line);\n    ret = malloc(num);\n#endif\n    return ret;\n}', 'void EVP_MD_CTX_free(EVP_MD_CTX *ctx)\n{\n    EVP_MD_CTX_reset(ctx);\n    OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n    if (free_impl != NULL && free_impl != &CRYPTO_free) {\n        free_impl(str, file, line);\n        return;\n    }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_free(str, 0, file, line);\n        free(str);\n        CRYPTO_mem_debug_free(str, 1, file, line);\n    } else {\n        free(str);\n    }\n#else\n    free(str);\n#endif\n}']