101     size_t i, blocksize;  in _krb5_evp_encrypt_cts()  local
109     blocksize = EVP_CIPHER_CTX_block_size(c);  in _krb5_evp_encrypt_cts()
111     if (len < blocksize) {  in _krb5_evp_encrypt_cts()
115     } else if (len == blocksize) {  in _krb5_evp_encrypt_cts()
129 	i = ((len - 1) / blocksize) * blocksize;  in _krb5_evp_encrypt_cts()
131 	p += i - blocksize;  in _krb5_evp_encrypt_cts()
133 	memcpy(ivec2, p, blocksize);  in _krb5_evp_encrypt_cts()
136 	    tmp[i] = p[i + blocksize] ^ ivec2[i];  in _krb5_evp_encrypt_cts()
137 	for (; i < blocksize; i++)  in _krb5_evp_encrypt_cts()
141 	EVP_Cipher(c, p, tmp, blocksize);  in _krb5_evp_encrypt_cts()
143 	memcpy(p + blocksize, ivec2, len);  in _krb5_evp_encrypt_cts()
145 	    memcpy(ivec, p, blocksize);  in _krb5_evp_encrypt_cts()
150 	if (len > blocksize * 2) {  in _krb5_evp_encrypt_cts()
152 	    i = ((((len - blocksize * 2) + blocksize - 1) / blocksize) * blocksize);  in _krb5_evp_encrypt_cts()
153 	    memcpy(ivec2, p + i - blocksize, blocksize);  in _krb5_evp_encrypt_cts()
156 	    len -= i + blocksize;  in _krb5_evp_encrypt_cts()
159 		memcpy(ivec2, ivec, blocksize);  in _krb5_evp_encrypt_cts()
161 		memcpy(ivec2, zero_ivec, blocksize);  in _krb5_evp_encrypt_cts()
162 	    len -= blocksize;  in _krb5_evp_encrypt_cts()
165 	memcpy(tmp, p, blocksize);  in _krb5_evp_encrypt_cts()
167 	EVP_Cipher(c, tmp2, p, blocksize);  in _krb5_evp_encrypt_cts()
169 	memcpy(tmp3, p + blocksize, len);  in _krb5_evp_encrypt_cts()
170 	memcpy(tmp3 + len, tmp2 + len, blocksize - len); /* xor 0 */  in _krb5_evp_encrypt_cts()
173 	    p[i + blocksize] = tmp2[i] ^ tmp3[i];  in _krb5_evp_encrypt_cts()
176 	EVP_Cipher(c, p, tmp3, blocksize);  in _krb5_evp_encrypt_cts()
178 	for (i = 0; i < blocksize; i++)  in _krb5_evp_encrypt_cts()
181 	    memcpy(ivec, tmp, blocksize);  in _krb5_evp_encrypt_cts()