diff options
Diffstat (limited to 'crypto/openssh/bufaux.c')
| -rw-r--r-- | crypto/openssh/bufaux.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/crypto/openssh/bufaux.c b/crypto/openssh/bufaux.c deleted file mode 100644 index cbdc22c..0000000 --- a/crypto/openssh/bufaux.c +++ /dev/null @@ -1,249 +0,0 @@ -/* $OpenBSD: bufaux.c,v 1.44 2006/08/03 03:34:41 deraadt Exp $ */ -/* - * Author: Tatu Ylonen <ylo@cs.hut.fi> - * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland - * All rights reserved - * Auxiliary functions for storing and retrieving various data types to/from - * Buffers. - * - * As far as I am concerned, the code I have written for this software - * can be used freely for any purpose. Any derived versions of this - * software must be clearly marked as such, and if the derived work is - * incompatible with the protocol description in the RFC file, it must be - * called by a name other than "ssh" or "Secure Shell". - * - * - * SSH2 packet format added by Markus Friedl - * Copyright (c) 2000 Markus Friedl. All rights reserved. - * - * 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 above 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. - */ - -#include "includes.h" - -#include <sys/types.h> - -#include <openssl/bn.h> - -#include <string.h> -#include <stdarg.h> - -#include "xmalloc.h" -#include "buffer.h" -#include "log.h" -#include "misc.h" - -/* - * Returns integers from the buffer (msb first). - */ - -int -buffer_get_short_ret(u_short *ret, Buffer *buffer) -{ - u_char buf[2]; - - if (buffer_get_ret(buffer, (char *) buf, 2) == -1) - return (-1); - *ret = get_u16(buf); - return (0); -} - -u_short -buffer_get_short(Buffer *buffer) -{ - u_short ret; - - if (buffer_get_short_ret(&ret, buffer) == -1) - fatal("buffer_get_short: buffer error"); - - return (ret); -} - -int -buffer_get_int_ret(u_int *ret, Buffer *buffer) -{ - u_char buf[4]; - - if (buffer_get_ret(buffer, (char *) buf, 4) == -1) - return (-1); - *ret = get_u32(buf); - return (0); -} - -u_int -buffer_get_int(Buffer *buffer) -{ - u_int ret; - - if (buffer_get_int_ret(&ret, buffer) == -1) - fatal("buffer_get_int: buffer error"); - - return (ret); -} - -int -buffer_get_int64_ret(u_int64_t *ret, Buffer *buffer) -{ - u_char buf[8]; - - if (buffer_get_ret(buffer, (char *) buf, 8) == -1) - return (-1); - *ret = get_u64(buf); - return (0); -} - -u_int64_t -buffer_get_int64(Buffer *buffer) -{ - u_int64_t ret; - - if (buffer_get_int64_ret(&ret, buffer) == -1) - fatal("buffer_get_int: buffer error"); - - return (ret); -} - -/* - * Stores integers in the buffer, msb first. - */ -void -buffer_put_short(Buffer *buffer, u_short value) -{ - char buf[2]; - - put_u16(buf, value); - buffer_append(buffer, buf, 2); -} - -void -buffer_put_int(Buffer *buffer, u_int value) -{ - char buf[4]; - - put_u32(buf, value); - buffer_append(buffer, buf, 4); -} - -void -buffer_put_int64(Buffer *buffer, u_int64_t value) -{ - char buf[8]; - - put_u64(buf, value); - buffer_append(buffer, buf, 8); -} - -/* - * Returns an arbitrary binary string from the buffer. The string cannot - * be longer than 256k. The returned value points to memory allocated - * with xmalloc; it is the responsibility of the calling function to free - * the data. If length_ptr is non-NULL, the length of the returned data - * will be stored there. A null character will be automatically appended - * to the returned string, and is not counted in length. - */ -void * -buffer_get_string_ret(Buffer *buffer, u_int *length_ptr) -{ - u_char *value; - u_int len; - - /* Get the length. */ - len = buffer_get_int(buffer); - if (len > 256 * 1024) { - error("buffer_get_string_ret: bad string length %u", len); - return (NULL); - } - /* Allocate space for the string. Add one byte for a null character. */ - value = xmalloc(len + 1); - /* Get the string. */ - if (buffer_get_ret(buffer, value, len) == -1) { - error("buffer_get_string_ret: buffer_get failed"); - xfree(value); - return (NULL); - } - /* Append a null character to make processing easier. */ - value[len] = 0; - /* Optionally return the length of the string. */ - if (length_ptr) - *length_ptr = len; - return (value); -} - -void * -buffer_get_string(Buffer *buffer, u_int *length_ptr) -{ - void *ret; - - if ((ret = buffer_get_string_ret(buffer, length_ptr)) == NULL) - fatal("buffer_get_string: buffer error"); - return (ret); -} - -/* - * Stores and arbitrary binary string in the buffer. - */ -void -buffer_put_string(Buffer *buffer, const void *buf, u_int len) -{ - buffer_put_int(buffer, len); - buffer_append(buffer, buf, len); -} -void -buffer_put_cstring(Buffer *buffer, const char *s) -{ - if (s == NULL) - fatal("buffer_put_cstring: s == NULL"); - buffer_put_string(buffer, s, strlen(s)); -} - -/* - * Returns a character from the buffer (0 - 255). - */ -int -buffer_get_char_ret(char *ret, Buffer *buffer) -{ - if (buffer_get_ret(buffer, ret, 1) == -1) { - error("buffer_get_char_ret: buffer_get_ret failed"); - return (-1); - } - return (0); -} - -int -buffer_get_char(Buffer *buffer) -{ - char ch; - - if (buffer_get_char_ret(&ch, buffer) == -1) - fatal("buffer_get_char: buffer error"); - return (u_char) ch; -} - -/* - * Stores a character in the buffer. - */ -void -buffer_put_char(Buffer *buffer, int value) -{ - char ch = value; - - buffer_append(buffer, &ch, 1); -} |
