1 files changed, 478 insertions, 0 deletions

diff --git a/src/lib/libcrypto/bio/bss_acpt.c b/src/lib/libcrypto/bio/bss_acpt.c
new file mode 100644
index 0000000000..5d49e1a72b
--- /dev/null
+++ b/src/lib/libcrypto/bio/bss_acpt.c
@@ -0,0 +1,478 @@
+/* crypto/bio/bss_acpt.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 <stdio.h>
+#include <errno.h>
+#define USE_SOCKETS
+#include "cryptlib.h"
+#include <openssl/bio.h>
+
+#ifndef OPENSSL_NO_SOCK
+
+#ifdef OPENSSL_SYS_WIN16
+#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL IPPROTO_TCP
+#endif
+
+#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
+/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
+#undef FIONBIO
+#endif
+
+typedef struct bio_accept_st
+        {
+        int state;
+        char *param_addr;
+
+        int accept_sock;
+        int accept_nbio;
+
+        char *addr;
+        int nbio;
+        /* If 0, it means normal, if 1, do a connect on bind failure,
+         * and if there is no-one listening, bind with SO_REUSEADDR.
+         * If 2, always use SO_REUSEADDR. */
+        int bind_mode;
+        BIO *bio_chain;
+        } BIO_ACCEPT;
+
+static int acpt_write(BIO *h, const char *buf, int num);
+static int acpt_read(BIO *h, char *buf, int size);
+static int acpt_puts(BIO *h, const char *str);
+static long acpt_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int acpt_new(BIO *h);
+static int acpt_free(BIO *data);
+static int acpt_state(BIO *b, BIO_ACCEPT *c);
+static void acpt_close_socket(BIO *data);
+static BIO_ACCEPT *BIO_ACCEPT_new(void );
+static void BIO_ACCEPT_free(BIO_ACCEPT *a);
+
+#define ACPT_S_BEFORE                   1
+#define ACPT_S_GET_ACCEPT_SOCKET        2
+#define ACPT_S_OK                       3
+
+static BIO_METHOD methods_acceptp=
+        {
+        BIO_TYPE_ACCEPT,
+        "socket accept",
+        acpt_write,
+        acpt_read,
+        acpt_puts,
+        NULL, /* connect_gets, */
+        acpt_ctrl,
+        acpt_new,
+        acpt_free,
+        NULL,
+        };
+
+BIO_METHOD *BIO_s_accept(void)
+        {
+        return(&methods_acceptp);
+        }
+
+static int acpt_new(BIO *bi)
+        {
+        BIO_ACCEPT *ba;
+
+        bi->init=0;
+        bi->num=INVALID_SOCKET;
+        bi->flags=0;
+        if ((ba=BIO_ACCEPT_new()) == NULL)
+                return(0);
+        bi->ptr=(char *)ba;
+        ba->state=ACPT_S_BEFORE;
+        bi->shutdown=1;
+        return(1);
+        }
+
+static BIO_ACCEPT *BIO_ACCEPT_new(void)
+        {
+        BIO_ACCEPT *ret;
+
+        if ((ret=(BIO_ACCEPT *)OPENSSL_malloc(sizeof(BIO_ACCEPT))) == NULL)
+                return(NULL);
+
+        memset(ret,0,sizeof(BIO_ACCEPT));
+        ret->accept_sock=INVALID_SOCKET;
+        ret->bind_mode=BIO_BIND_NORMAL;
+        return(ret);
+        }
+
+static void BIO_ACCEPT_free(BIO_ACCEPT *a)
+        {
+        if(a == NULL)
+            return;
+
+        if (a->param_addr != NULL) OPENSSL_free(a->param_addr);
+        if (a->addr != NULL) OPENSSL_free(a->addr);
+        if (a->bio_chain != NULL) BIO_free(a->bio_chain);
+        OPENSSL_free(a);
+        }
+
+static void acpt_close_socket(BIO *bio)
+        {
+        BIO_ACCEPT *c;
+
+        c=(BIO_ACCEPT *)bio->ptr;
+        if (c->accept_sock != INVALID_SOCKET)
+                {
+                shutdown(c->accept_sock,2);
+                closesocket(c->accept_sock);
+                c->accept_sock=INVALID_SOCKET;
+                bio->num=INVALID_SOCKET;
+                }
+        }
+
+static int acpt_free(BIO *a)
+        {
+        BIO_ACCEPT *data;
+
+        if (a == NULL) return(0);
+        data=(BIO_ACCEPT *)a->ptr;
+         
+        if (a->shutdown)
+                {
+                acpt_close_socket(a);
+                BIO_ACCEPT_free(data);
+                a->ptr=NULL;
+                a->flags=0;
+                a->init=0;
+                }
+        return(1);
+        }
+        
+static int acpt_state(BIO *b, BIO_ACCEPT *c)
+        {
+        BIO *bio=NULL,*dbio;
+        int s= -1;
+        int i;
+
+again:
+        switch (c->state)
+                {
+        case ACPT_S_BEFORE:
+                if (c->param_addr == NULL)
+                        {
+                        BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED);
+                        return(-1);
+                        }
+                s=BIO_get_accept_socket(c->param_addr,c->bind_mode);
+                if (s == INVALID_SOCKET)
+                        return(-1);
+
+                if (c->accept_nbio)
+                        {
+                        if (!BIO_socket_nbio(s,1))
+                                {
+                                closesocket(s);
+                                BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
+                                return(-1);
+                                }
+                        }
+                c->accept_sock=s;
+                b->num=s;
+                c->state=ACPT_S_GET_ACCEPT_SOCKET;
+                return(1);
+                /* break; */
+        case ACPT_S_GET_ACCEPT_SOCKET:
+                if (b->next_bio != NULL)
+                        {
+                        c->state=ACPT_S_OK;
+                        goto again;
+                        }
+                BIO_clear_retry_flags(b);
+                b->retry_reason=0;
+                i=BIO_accept(c->accept_sock,&(c->addr));
+
+                /* -2 return means we should retry */
+                if(i == -2)
+                        {
+                        BIO_set_retry_special(b);
+                        b->retry_reason=BIO_RR_ACCEPT;
+                        return -1;
+                        }
+
+                if (i < 0) return(i);
+
+                bio=BIO_new_socket(i,BIO_CLOSE);
+                if (bio == NULL) goto err;
+
+                BIO_set_callback(bio,BIO_get_callback(b));
+                BIO_set_callback_arg(bio,BIO_get_callback_arg(b));
+
+                if (c->nbio)
+                        {
+                        if (!BIO_socket_nbio(i,1))
+                                {
+                                BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
+                                goto err;
+                                }
+                        }
+
+                /* If the accept BIO has an bio_chain, we dup it and
+                 * put the new socket at the end. */
+                if (c->bio_chain != NULL)
+                        {
+                        if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL)
+                                goto err;
+                        if (!BIO_push(dbio,bio)) goto err;
+                        bio=dbio;
+                        }
+                if (BIO_push(b,bio) == NULL) goto err;
+
+                c->state=ACPT_S_OK;
+                return(1);
+err:
+                if (bio != NULL)
+                        BIO_free(bio);
+                else if (s >= 0)
+                        closesocket(s);
+                return(0);
+                /* break; */
+        case ACPT_S_OK:
+                if (b->next_bio == NULL)
+                        {
+                        c->state=ACPT_S_GET_ACCEPT_SOCKET;
+                        goto again;
+                        }
+                return(1);
+                /* break; */
+        default:        
+                return(0);
+                /* break; */
+                }
+
+        }
+
+static int acpt_read(BIO *b, char *out, int outl)
+        {
+        int ret=0;
+        BIO_ACCEPT *data;
+
+        BIO_clear_retry_flags(b);
+        data=(BIO_ACCEPT *)b->ptr;
+
+        while (b->next_bio == NULL)
+                {
+                ret=acpt_state(b,data);
+                if (ret <= 0) return(ret);
+                }
+
+        ret=BIO_read(b->next_bio,out,outl);
+        BIO_copy_next_retry(b);
+        return(ret);
+        }
+
+static int acpt_write(BIO *b, const char *in, int inl)
+        {
+        int ret;
+        BIO_ACCEPT *data;
+
+        BIO_clear_retry_flags(b);
+        data=(BIO_ACCEPT *)b->ptr;
+
+        while (b->next_bio == NULL)
+                {
+                ret=acpt_state(b,data);
+                if (ret <= 0) return(ret);
+                }
+
+        ret=BIO_write(b->next_bio,in,inl);
+        BIO_copy_next_retry(b);
+        return(ret);
+        }
+
+static long acpt_ctrl(BIO *b, int cmd, long num, void *ptr)
+        {
+        int *ip;
+        long ret=1;
+        BIO_ACCEPT *data;
+        char **pp;
+
+        data=(BIO_ACCEPT *)b->ptr;
+
+        switch (cmd)
+                {
+        case BIO_CTRL_RESET:
+                ret=0;
+                data->state=ACPT_S_BEFORE;
+                acpt_close_socket(b);
+                b->flags=0;
+                break;
+        case BIO_C_DO_STATE_MACHINE:
+                /* use this one to start the connection */
+                ret=(long)acpt_state(b,data);
+                break;
+        case BIO_C_SET_ACCEPT:
+                if (ptr != NULL)
+                        {
+                        if (num == 0)
+                                {
+                                b->init=1;
+                                if (data->param_addr != NULL)
+                                        OPENSSL_free(data->param_addr);
+                                data->param_addr=BUF_strdup(ptr);
+                                }
+                        else if (num == 1)
+                                {
+                                data->accept_nbio=(ptr != NULL);
+                                }
+                        else if (num == 2)
+                                {
+                                if (data->bio_chain != NULL)
+                                        BIO_free(data->bio_chain);
+                                data->bio_chain=(BIO *)ptr;
+                                }
+                        }
+                break;
+        case BIO_C_SET_NBIO:
+                data->nbio=(int)num;
+                break;
+        case BIO_C_SET_FD:
+                b->init=1;
+                b->num= *((int *)ptr);
+                data->accept_sock=b->num;
+                data->state=ACPT_S_GET_ACCEPT_SOCKET;
+                b->shutdown=(int)num;
+                b->init=1;
+                break;
+        case BIO_C_GET_FD:
+                if (b->init)
+                        {
+                        ip=(int *)ptr;
+                        if (ip != NULL)
+                                *ip=data->accept_sock;
+                        ret=data->accept_sock;
+                        }
+                else
+                        ret= -1;
+                break;
+        case BIO_C_GET_ACCEPT:
+                if (b->init)
+                        {
+                        if (ptr != NULL)
+                                {
+                                pp=(char **)ptr;
+                                *pp=data->param_addr;
+                                }
+                        else
+                                ret= -1;
+                        }
+                else
+                        ret= -1;
+                break;
+        case BIO_CTRL_GET_CLOSE:
+                ret=b->shutdown;
+                break;
+        case BIO_CTRL_SET_CLOSE:
+                b->shutdown=(int)num;
+                break;
+        case BIO_CTRL_PENDING:
+        case BIO_CTRL_WPENDING:
+                ret=0;
+                break;
+        case BIO_CTRL_FLUSH:
+                break;
+        case BIO_C_SET_BIND_MODE:
+                data->bind_mode=(int)num;
+                break;
+        case BIO_C_GET_BIND_MODE:
+                ret=(long)data->bind_mode;
+                break;
+        case BIO_CTRL_DUP:
+/*              dbio=(BIO *)ptr;
+                if (data->param_port) EAY EAY
+                        BIO_set_port(dbio,data->param_port);
+                if (data->param_hostname)
+                        BIO_set_hostname(dbio,data->param_hostname);
+                BIO_set_nbio(dbio,data->nbio); */
+                break;
+
+        default:
+                ret=0;
+                break;
+                }
+        return(ret);
+        }
+
+static int acpt_puts(BIO *bp, const char *str)
+        {
+        int n,ret;
+
+        n=strlen(str);
+        ret=acpt_write(bp,str,n);
+        return(ret);
+        }
+
+BIO *BIO_new_accept(char *str)
+        {
+        BIO *ret;
+
+        ret=BIO_new(BIO_s_accept());
+        if (ret == NULL) return(NULL);
+        if (BIO_set_accept_port(ret,str))
+                return(ret);
+        else
+                {
+                BIO_free(ret);
+                return(NULL);
+                }
+        }
+
+#endif