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-rw-r--r--thirdparty/openssl/ssl/s2_pkt.c731
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diff --git a/thirdparty/openssl/ssl/s2_pkt.c b/thirdparty/openssl/ssl/s2_pkt.c
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--- a/thirdparty/openssl/ssl/s2_pkt.c
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@@ -1,731 +0,0 @@
-/* ssl/s2_pkt.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.]
- */
-/* ====================================================================
- * Copyright (c) 1998-2001 The OpenSSL Project. 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.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include "ssl_locl.h"
-#ifndef OPENSSL_NO_SSL2
-# include <stdio.h>
-# include <errno.h>
-# define USE_SOCKETS
-
-static int read_n(SSL *s, unsigned int n, unsigned int max,
- unsigned int extend);
-static int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len);
-static int write_pending(SSL *s, const unsigned char *buf, unsigned int len);
-static int ssl_mt_error(int n);
-
-/*
- * SSL 2.0 imlementation for SSL_read/SSL_peek - This routine will return 0
- * to len bytes, decrypted etc if required.
- */
-static int ssl2_read_internal(SSL *s, void *buf, int len, int peek)
-{
- int n;
- unsigned char mac[MAX_MAC_SIZE];
- unsigned char *p;
- int i;
- int mac_size;
-
- ssl2_read_again:
- if (SSL_in_init(s) && !s->in_handshake) {
- n = s->handshake_func(s);
- if (n < 0)
- return (n);
- if (n == 0) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_SSL_HANDSHAKE_FAILURE);
- return (-1);
- }
- }
-
- clear_sys_error();
- s->rwstate = SSL_NOTHING;
- if (len <= 0)
- return (len);
-
- if (s->s2->ract_data_length != 0) { /* read from buffer */
- if (len > s->s2->ract_data_length)
- n = s->s2->ract_data_length;
- else
- n = len;
-
- memcpy(buf, s->s2->ract_data, (unsigned int)n);
- if (!peek) {
- s->s2->ract_data_length -= n;
- s->s2->ract_data += n;
- if (s->s2->ract_data_length == 0)
- s->rstate = SSL_ST_READ_HEADER;
- }
-
- return (n);
- }
-
- /*
- * s->s2->ract_data_length == 0 Fill the buffer, then goto
- * ssl2_read_again.
- */
-
- if (s->rstate == SSL_ST_READ_HEADER) {
- if (s->first_packet) {
- n = read_n(s, 5, SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2, 0);
- if (n <= 0)
- return (n); /* error or non-blocking */
- s->first_packet = 0;
- p = s->packet;
- if (!((p[0] & 0x80) && ((p[2] == SSL2_MT_CLIENT_HELLO) ||
- (p[2] == SSL2_MT_SERVER_HELLO)))) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL,
- SSL_R_NON_SSLV2_INITIAL_PACKET);
- return (-1);
- }
- } else {
- n = read_n(s, 2, SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2, 0);
- if (n <= 0)
- return (n); /* error or non-blocking */
- }
- /* part read stuff */
-
- s->rstate = SSL_ST_READ_BODY;
- p = s->packet;
- /* Do header */
- /*
- * s->s2->padding=0;
- */
- s->s2->escape = 0;
- s->s2->rlength = (((unsigned int)p[0]) << 8) | ((unsigned int)p[1]);
- if ((p[0] & TWO_BYTE_BIT)) { /* Two byte header? */
- s->s2->three_byte_header = 0;
- s->s2->rlength &= TWO_BYTE_MASK;
- } else {
- s->s2->three_byte_header = 1;
- s->s2->rlength &= THREE_BYTE_MASK;
-
- /* security >s2->escape */
- s->s2->escape = ((p[0] & SEC_ESC_BIT)) ? 1 : 0;
- }
- }
-
- if (s->rstate == SSL_ST_READ_BODY) {
- n = s->s2->rlength + 2 + s->s2->three_byte_header;
- if (n > (int)s->packet_length) {
- n -= s->packet_length;
- i = read_n(s, (unsigned int)n, (unsigned int)n, 1);
- if (i <= 0)
- return (i); /* ERROR */
- }
-
- p = &(s->packet[2]);
- s->rstate = SSL_ST_READ_HEADER;
- if (s->s2->three_byte_header)
- s->s2->padding = *(p++);
- else
- s->s2->padding = 0;
-
- /* Data portion */
- if (s->s2->clear_text) {
- mac_size = 0;
- s->s2->mac_data = p;
- s->s2->ract_data = p;
- if (s->s2->padding) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_ILLEGAL_PADDING);
- return (-1);
- }
- } else {
- mac_size = EVP_MD_CTX_size(s->read_hash);
- if (mac_size < 0)
- return -1;
- OPENSSL_assert(mac_size <= MAX_MAC_SIZE);
- s->s2->mac_data = p;
- s->s2->ract_data = &p[mac_size];
- if (s->s2->padding + mac_size > s->s2->rlength) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_ILLEGAL_PADDING);
- return (-1);
- }
- }
-
- s->s2->ract_data_length = s->s2->rlength;
- /*
- * added a check for length > max_size in case encryption was not
- * turned on yet due to an error
- */
- if ((!s->s2->clear_text) &&
- (s->s2->rlength >= (unsigned int)mac_size)) {
- if (!ssl2_enc(s, 0)) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_DECRYPTION_FAILED);
- return (-1);
- }
- s->s2->ract_data_length -= mac_size;
- ssl2_mac(s, mac, 0);
- s->s2->ract_data_length -= s->s2->padding;
- if ((CRYPTO_memcmp(mac, s->s2->mac_data, mac_size) != 0) ||
- (s->s2->rlength %
- EVP_CIPHER_CTX_block_size(s->enc_read_ctx) != 0)) {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_BAD_MAC_DECODE);
- return (-1);
- }
- }
- INC32(s->s2->read_sequence); /* expect next number */
- /* s->s2->ract_data is now available for processing */
-
- /*
- * Possibly the packet that we just read had 0 actual data bytes.
- * (SSLeay/OpenSSL itself never sends such packets; see ssl2_write.)
- * In this case, returning 0 would be interpreted by the caller as
- * indicating EOF, so it's not a good idea. Instead, we just
- * continue reading; thus ssl2_read_internal may have to process
- * multiple packets before it can return. [Note that using select()
- * for blocking sockets *never* guarantees that the next SSL_read
- * will not block -- the available data may contain incomplete
- * packets, and except for SSL 2, renegotiation can confuse things
- * even more.]
- */
-
- goto ssl2_read_again; /* This should really be "return
- * ssl2_read(s,buf,len)", but that would
- * allow for denial-of-service attacks if a C
- * compiler is used that does not recognize
- * end-recursion. */
- } else {
- SSLerr(SSL_F_SSL2_READ_INTERNAL, SSL_R_BAD_STATE);
- return (-1);
- }
-}
-
-int ssl2_read(SSL *s, void *buf, int len)
-{
- return ssl2_read_internal(s, buf, len, 0);
-}
-
-int ssl2_peek(SSL *s, void *buf, int len)
-{
- return ssl2_read_internal(s, buf, len, 1);
-}
-
-/*
- * Return values are as per SSL_read()
- */
-static int read_n(SSL *s, unsigned int n, unsigned int max,
- unsigned int extend)
-{
- int i, off, newb;
-
- /*
- * if there is stuff still in the buffer from a previous read, and there
- * is more than we want, take some.
- */
- if (s->s2->rbuf_left >= (int)n) {
- if (extend)
- s->packet_length += n;
- else {
- s->packet = &(s->s2->rbuf[s->s2->rbuf_offs]);
- s->packet_length = n;
- }
- s->s2->rbuf_left -= n;
- s->s2->rbuf_offs += n;
- return (n);
- }
-
- if (!s->read_ahead)
- max = n;
- if (max > (unsigned int)(SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2))
- max = SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2;
-
- /*
- * Else we want more than we have. First, if there is some left or we
- * want to extend
- */
- off = 0;
- if ((s->s2->rbuf_left != 0) || ((s->packet_length != 0) && extend)) {
- newb = s->s2->rbuf_left;
- if (extend) {
- off = s->packet_length;
- if (s->packet != s->s2->rbuf)
- memcpy(s->s2->rbuf, s->packet, (unsigned int)newb + off);
- } else if (s->s2->rbuf_offs != 0) {
- memcpy(s->s2->rbuf, &(s->s2->rbuf[s->s2->rbuf_offs]),
- (unsigned int)newb);
- s->s2->rbuf_offs = 0;
- }
- s->s2->rbuf_left = 0;
- } else
- newb = 0;
-
- /*
- * off is the offset to start writing too. r->s2->rbuf_offs is the
- * 'unread data', now 0. newb is the number of new bytes so far
- */
- s->packet = s->s2->rbuf;
- while (newb < (int)n) {
- clear_sys_error();
- if (s->rbio != NULL) {
- s->rwstate = SSL_READING;
- i = BIO_read(s->rbio, (char *)&(s->s2->rbuf[off + newb]),
- max - newb);
- } else {
- SSLerr(SSL_F_READ_N, SSL_R_READ_BIO_NOT_SET);
- i = -1;
- }
-# ifdef PKT_DEBUG
- if (s->debug & 0x01)
- sleep(1);
-# endif
- if (i <= 0) {
- s->s2->rbuf_left += newb;
- return i;
- }
- newb += i;
- }
-
- /* record unread data */
- if (newb > (int)n) {
- s->s2->rbuf_offs = n + off;
- s->s2->rbuf_left = newb - n;
- } else {
- s->s2->rbuf_offs = 0;
- s->s2->rbuf_left = 0;
- }
- if (extend)
- s->packet_length += n;
- else
- s->packet_length = n;
- s->rwstate = SSL_NOTHING;
- return (n);
-}
-
-int ssl2_write(SSL *s, const void *_buf, int len)
-{
- const unsigned char *buf = _buf;
- unsigned int n, tot;
- int i;
-
- if (SSL_in_init(s) && !s->in_handshake) {
- i = s->handshake_func(s);
- if (i < 0)
- return (i);
- if (i == 0) {
- SSLerr(SSL_F_SSL2_WRITE, SSL_R_SSL_HANDSHAKE_FAILURE);
- return (-1);
- }
- }
-
- if (s->error) {
- ssl2_write_error(s);
- if (s->error)
- return (-1);
- }
-
- clear_sys_error();
- s->rwstate = SSL_NOTHING;
- if (len <= 0)
- return (len);
-
- tot = s->s2->wnum;
- s->s2->wnum = 0;
-
- n = (len - tot);
- for (;;) {
- i = n_do_ssl_write(s, &(buf[tot]), n);
- if (i <= 0) {
- s->s2->wnum = tot;
- return (i);
- }
- if ((i == (int)n) || (s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE)) {
- return (tot + i);
- }
-
- n -= i;
- tot += i;
- }
-}
-
-/*
- * Return values are as per SSL_write()
- */
-static int write_pending(SSL *s, const unsigned char *buf, unsigned int len)
-{
- int i;
-
- /* s->s2->wpend_len != 0 MUST be true. */
-
- /*
- * check that they have given us the same buffer to write
- */
- if ((s->s2->wpend_tot > (int)len) ||
- ((s->s2->wpend_buf != buf) &&
- !(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))) {
- SSLerr(SSL_F_WRITE_PENDING, SSL_R_BAD_WRITE_RETRY);
- return (-1);
- }
-
- for (;;) {
- clear_sys_error();
- if (s->wbio != NULL) {
- s->rwstate = SSL_WRITING;
- i = BIO_write(s->wbio,
- (char *)&(s->s2->write_ptr[s->s2->wpend_off]),
- (unsigned int)s->s2->wpend_len);
- } else {
- SSLerr(SSL_F_WRITE_PENDING, SSL_R_WRITE_BIO_NOT_SET);
- i = -1;
- }
-# ifdef PKT_DEBUG
- if (s->debug & 0x01)
- sleep(1);
-# endif
- if (i == s->s2->wpend_len) {
- s->s2->wpend_len = 0;
- s->rwstate = SSL_NOTHING;
- return (s->s2->wpend_ret);
- } else if (i <= 0)
- return i;
- s->s2->wpend_off += i;
- s->s2->wpend_len -= i;
- }
-}
-
-static int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len)
-{
- unsigned int j, k, olen, p, bs;
- int mac_size;
- register unsigned char *pp;
-
- olen = len;
-
- /*
- * first check if there is data from an encryption waiting to be sent -
- * it must be sent because the other end is waiting. This will happen
- * with non-blocking IO. We print it and then return.
- */
- if (s->s2->wpend_len != 0)
- return (write_pending(s, buf, len));
-
- /* set mac_size to mac size */
- if (s->s2->clear_text)
- mac_size = 0;
- else {
- mac_size = EVP_MD_CTX_size(s->write_hash);
- if (mac_size < 0)
- return -1;
- }
-
- /* lets set the pad p */
- if (s->s2->clear_text) {
- if (len > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
- len = SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
- p = 0;
- s->s2->three_byte_header = 0;
- /* len=len; */
- } else {
- bs = EVP_CIPHER_CTX_block_size(s->enc_read_ctx);
- j = len + mac_size;
- /*
- * Two-byte headers allow for a larger record length than three-byte
- * headers, but we can't use them if we need padding or if we have to
- * set the escape bit.
- */
- if ((j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) && (!s->s2->escape)) {
- if (j > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
- j = SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
- /*
- * set k to the max number of bytes with 2 byte header
- */
- k = j - (j % bs);
- /* how many data bytes? */
- len = k - mac_size;
- s->s2->three_byte_header = 0;
- p = 0;
- } else if ((bs <= 1) && (!s->s2->escape)) {
- /*-
- * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, thus
- * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
- */
- s->s2->three_byte_header = 0;
- p = 0;
- } else { /* we may have to use a 3 byte header */
-
- /*-
- * If s->s2->escape is not set, then
- * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, and thus
- * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER.
- */
- p = (j % bs);
- p = (p == 0) ? 0 : (bs - p);
- if (s->s2->escape) {
- s->s2->three_byte_header = 1;
- if (j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
- j = SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER;
- } else
- s->s2->three_byte_header = (p == 0) ? 0 : 1;
- }
- }
-
- /*-
- * Now
- * j <= SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
- * holds, and if s->s2->three_byte_header is set, then even
- * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER.
- */
-
- /*
- * mac_size is the number of MAC bytes len is the number of data bytes we
- * are going to send p is the number of padding bytes (if it is a
- * two-byte header, then p == 0)
- */
-
- s->s2->wlength = len;
- s->s2->padding = p;
- s->s2->mac_data = &(s->s2->wbuf[3]);
- s->s2->wact_data = &(s->s2->wbuf[3 + mac_size]);
-
- /*
- * It would be clearer to write this as follows:
- * if (mac_size + len + p > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
- * However |len| is user input that could in theory be very large. We
- * know |mac_size| and |p| are small, so to avoid any possibility of
- * overflow we write it like this.
- *
- * In theory this should never fail because the logic above should have
- * modified |len| if it is too big. But we are being cautious.
- */
- if (len > (SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER - (mac_size + p))) {
- return -1;
- }
- /* we copy the data into s->s2->wbuf */
- memcpy(s->s2->wact_data, buf, len);
- if (p)
- memset(&(s->s2->wact_data[len]), 0, p); /* arbitrary padding */
-
- if (!s->s2->clear_text) {
- s->s2->wact_data_length = len + p;
- ssl2_mac(s, s->s2->mac_data, 1);
- s->s2->wlength += p + mac_size;
- if (ssl2_enc(s, 1) < 1)
- return -1;
- }
-
- /* package up the header */
- s->s2->wpend_len = s->s2->wlength;
- if (s->s2->three_byte_header) { /* 3 byte header */
- pp = s->s2->mac_data;
- pp -= 3;
- pp[0] = (s->s2->wlength >> 8) & (THREE_BYTE_MASK >> 8);
- if (s->s2->escape)
- pp[0] |= SEC_ESC_BIT;
- pp[1] = s->s2->wlength & 0xff;
- pp[2] = s->s2->padding;
- s->s2->wpend_len += 3;
- } else {
- pp = s->s2->mac_data;
- pp -= 2;
- pp[0] = ((s->s2->wlength >> 8) & (TWO_BYTE_MASK >> 8)) | TWO_BYTE_BIT;
- pp[1] = s->s2->wlength & 0xff;
- s->s2->wpend_len += 2;
- }
- s->s2->write_ptr = pp;
-
- INC32(s->s2->write_sequence); /* expect next number */
-
- /* lets try to actually write the data */
- s->s2->wpend_tot = olen;
- s->s2->wpend_buf = buf;
-
- s->s2->wpend_ret = len;
-
- s->s2->wpend_off = 0;
- return (write_pending(s, buf, olen));
-}
-
-int ssl2_part_read(SSL *s, unsigned long f, int i)
-{
- unsigned char *p;
- int j;
-
- if (i < 0) {
- /* ssl2_return_error(s); */
- /*
- * for non-blocking io, this is not necessarily fatal
- */
- return (i);
- } else {
- s->init_num += i;
-
- /*
- * Check for error. While there are recoverable errors, this
- * function is not called when those must be expected; any error
- * detected here is fatal.
- */
- if (s->init_num >= 3) {
- p = (unsigned char *)s->init_buf->data;
- if (p[0] == SSL2_MT_ERROR) {
- j = (p[1] << 8) | p[2];
- SSLerr((int)f, ssl_mt_error(j));
- s->init_num -= 3;
- if (s->init_num > 0)
- memmove(p, p + 3, s->init_num);
- }
- }
-
- /*
- * If it's not an error message, we have some error anyway -- the
- * message was shorter than expected. This too is treated as fatal
- * (at least if SSL_get_error is asked for its opinion).
- */
- return (0);
- }
-}
-
-int ssl2_do_write(SSL *s)
-{
- int ret;
-
- ret = ssl2_write(s, &s->init_buf->data[s->init_off], s->init_num);
- if (ret == s->init_num) {
- if (s->msg_callback)
- s->msg_callback(1, s->version, 0, s->init_buf->data,
- (size_t)(s->init_off + s->init_num), s,
- s->msg_callback_arg);
- return (1);
- }
- if (ret < 0)
- return (-1);
- s->init_off += ret;
- s->init_num -= ret;
- return (0);
-}
-
-static int ssl_mt_error(int n)
-{
- int ret;
-
- switch (n) {
- case SSL2_PE_NO_CIPHER:
- ret = SSL_R_PEER_ERROR_NO_CIPHER;
- break;
- case SSL2_PE_NO_CERTIFICATE:
- ret = SSL_R_PEER_ERROR_NO_CERTIFICATE;
- break;
- case SSL2_PE_BAD_CERTIFICATE:
- ret = SSL_R_PEER_ERROR_CERTIFICATE;
- break;
- case SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE:
- ret = SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE;
- break;
- default:
- ret = SSL_R_UNKNOWN_REMOTE_ERROR_TYPE;
- break;
- }
- return (ret);
-}
-#else /* !OPENSSL_NO_SSL2 */
-
-# if PEDANTIC
-static void *dummy = &dummy;
-# endif
-
-#endif