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Diffstat (limited to 'crypto/des/enc_writ.c')
| -rw-r--r-- | crypto/des/enc_writ.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/crypto/des/enc_writ.c b/crypto/des/enc_writ.c deleted file mode 100644 index c2aaa8e98ca2..000000000000 --- a/crypto/des/enc_writ.c +++ /dev/null @@ -1,182 +0,0 @@ -/* crypto/des/enc_writ.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <errno.h> -#include <time.h> -#include <stdio.h> -#include "cryptlib.h" -#include "des_locl.h" -#include <openssl/rand.h> - -/*- - * WARNINGS: - * - * - The data format used by DES_enc_write() and DES_enc_read() - * has a cryptographic weakness: When asked to write more - * than MAXWRITE bytes, DES_enc_write will split the data - * into several chunks that are all encrypted - * using the same IV. So don't use these functions unless you - * are sure you know what you do (in which case you might - * not want to use them anyway). - * - * - This code cannot handle non-blocking sockets. - */ - -int DES_enc_write(int fd, const void *_buf, int len, - DES_key_schedule *sched, DES_cblock *iv) -{ -#if defined(OPENSSL_NO_POSIX_IO) - return (-1); -#else -# ifdef _LIBC - extern unsigned long time(); - extern int write(); -# endif - const unsigned char *buf = _buf; - long rnum; - int i, j, k, outnum; - static unsigned char *outbuf = NULL; - unsigned char shortbuf[8]; - unsigned char *p; - const unsigned char *cp; - static int start = 1; - - if (len < 0) - return -1; - - if (outbuf == NULL) { - outbuf = OPENSSL_malloc(BSIZE + HDRSIZE); - if (outbuf == NULL) - return (-1); - } - /* - * If we are sending less than 8 bytes, the same char will look the same - * if we don't pad it out with random bytes - */ - if (start) { - start = 0; - } - - /* lets recurse if we want to send the data in small chunks */ - if (len > MAXWRITE) { - j = 0; - for (i = 0; i < len; i += k) { - k = DES_enc_write(fd, &(buf[i]), - ((len - i) > MAXWRITE) ? MAXWRITE : (len - i), - sched, iv); - if (k < 0) - return (k); - else - j += k; - } - return (j); - } - - /* write length first */ - p = outbuf; - l2n(len, p); - - /* pad short strings */ - if (len < 8) { - cp = shortbuf; - memcpy(shortbuf, buf, len); - if (RAND_bytes(shortbuf + len, 8 - len) <= 0) { - return -1; - } - rnum = 8; - } else { - cp = buf; - rnum = ((len + 7) / 8 * 8); /* round up to nearest eight */ - } - - if (DES_rw_mode & DES_PCBC_MODE) - DES_pcbc_encrypt(cp, &(outbuf[HDRSIZE]), (len < 8) ? 8 : len, sched, - iv, DES_ENCRYPT); - else - DES_cbc_encrypt(cp, &(outbuf[HDRSIZE]), (len < 8) ? 8 : len, sched, - iv, DES_ENCRYPT); - - /* output */ - outnum = rnum + HDRSIZE; - - for (j = 0; j < outnum; j += i) { - /* - * eay 26/08/92 I was not doing writing from where we got up to. - */ -# ifndef _WIN32 - i = write(fd, (void *)&(outbuf[j]), outnum - j); -# else - i = _write(fd, (void *)&(outbuf[j]), outnum - j); -# endif - if (i == -1) { -# ifdef EINTR - if (errno == EINTR) - i = 0; - else -# endif - /* - * This is really a bad error - very bad It will stuff-up - * both ends. - */ - return (-1); - } - } - - return (len); -#endif /* OPENSSL_NO_POSIX_IO */ -} |