X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fbio%2Fbss_acpt.c;h=628da9e6348b53282e3b605e89e369e2875a9995;hp=e49902fa9fb936440bb02cf5c6d21876be5f9865;hb=0a5fe2eb94ad7085fee59c3908b546af7530c9d3;hpb=78414a6a897db42c9bcf06aa21c705811ab33921 diff --git a/crypto/bio/bss_acpt.c b/crypto/bio/bss_acpt.c index e49902fa9f..628da9e634 100644 --- a/crypto/bio/bss_acpt.c +++ b/crypto/bio/bss_acpt.c @@ -1,500 +1,557 @@ -/* crypto/bio/bss_acpt.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. 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.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ -#ifndef NO_SOCK - #include #include -#define USE_SOCKETS -#include "cryptlib.h" -#include "bio.h" - -/* BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */ - -#ifdef WIN16 -#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ -#else -#define SOCKET_PROTOCOL IPPROTO_TCP -#endif - -typedef struct bio_accept_st - { - int state; - char *param_addr; - - int accept_sock; - int accept_nbio; - - char *addr; - int nbio; - BIO *bio_chain; - } BIO_ACCEPT; - -#ifndef NOPROTO -static int acpt_write(BIO *h,char *buf,int num); -static int acpt_read(BIO *h,char *buf,int size); -static int acpt_puts(BIO *h,char *str); -static long acpt_ctrl(BIO *h,int cmd,long arg1,char *arg2); +#include "bio_lcl.h" + +#ifndef OPENSSL_NO_SOCK + +typedef struct bio_accept_st { + int state; + int accept_family; + int bind_mode; /* Socket mode for BIO_listen */ + int accepted_mode; /* Socket mode for BIO_accept (set on accepted sock) */ + char *param_addr; + char *param_serv; + + int accept_sock; + + BIO_ADDRINFO *addr_first; + const BIO_ADDRINFO *addr_iter; + BIO_ADDR cache_accepting_addr; /* Useful if we asked for port 0 */ + char *cache_accepting_name, *cache_accepting_serv; + BIO_ADDR cache_peer_addr; + char *cache_peer_name, *cache_peer_serv; + + 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); -#else -static int acpt_write(); -static int acpt_read(); -static int acpt_puts(); -static long acpt_ctrl(); -static int acpt_new(); -static int acpt_free(); -#endif - -#ifndef NOPROTO static int acpt_state(BIO *b, BIO_ACCEPT *c); static void acpt_close_socket(BIO *data); -BIO_ACCEPT *BIO_ACCEPT_new(void ); -void BIO_ACCEPT_free(BIO_ACCEPT *a); - -#else - -static int acpt_state(); -static void acpt_close_socket(); -BIO_ACCEPT *BIO_ACCEPT_new(); -void BIO_ACCEPT_free(); +static BIO_ACCEPT *BIO_ACCEPT_new(void); +static void BIO_ACCEPT_free(BIO_ACCEPT *a); + +# define ACPT_S_BEFORE 1 +# define ACPT_S_GET_ADDR 2 +# define ACPT_S_CREATE_SOCKET 3 +# define ACPT_S_LISTEN 4 +# define ACPT_S_ACCEPT 5 +# define ACPT_S_OK 6 + +static const 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, +}; + +const BIO_METHOD *BIO_s_accept(void) +{ + return (&methods_acceptp); +} + +static int acpt_new(BIO *bi) +{ + BIO_ACCEPT *ba; + + bi->init = 0; + bi->num = (int)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 = OPENSSL_zalloc(sizeof(*ret))) == NULL) + return (NULL); + ret->accept_family = BIO_FAMILY_IPANY; + ret->accept_sock = (int)INVALID_SOCKET; + return (ret); +} + +static void BIO_ACCEPT_free(BIO_ACCEPT *a) +{ + if (a == NULL) + return; + + OPENSSL_free(a->param_addr); + OPENSSL_free(a->param_serv); + BIO_ADDRINFO_free(a->addr_first); + OPENSSL_free(a->cache_accepting_name); + OPENSSL_free(a->cache_accepting_serv); + OPENSSL_free(a->cache_peer_name); + OPENSSL_free(a->cache_peer_serv); + 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 != (int)INVALID_SOCKET) { + shutdown(c->accept_sock, 2); + closesocket(c->accept_sock); + c->accept_sock = (int)INVALID_SOCKET; + bio->num = (int)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, ret = -1; + + for (;;) { + switch (c->state) { + case ACPT_S_BEFORE: + if (c->param_addr == NULL && c->param_serv == NULL) { + BIOerr(BIO_F_ACPT_STATE, BIO_R_NO_ACCEPT_ADDR_OR_SERVICE_SPECIFIED); + ERR_add_error_data(4, + "hostname=", c->param_addr, + " service=", c->param_serv); + goto exit_loop; + } + + /* Because we're starting a new bind, any cached name and serv + * are now obsolete and need to be cleaned out. + * QUESTION: should this be done in acpt_close_socket() instead? + */ + OPENSSL_free(c->cache_accepting_name); + c->cache_accepting_name = NULL; + OPENSSL_free(c->cache_accepting_serv); + c->cache_accepting_serv = NULL; + OPENSSL_free(c->cache_peer_name); + c->cache_peer_name = NULL; + OPENSSL_free(c->cache_peer_serv); + c->cache_peer_serv = NULL; + + c->state = ACPT_S_GET_ADDR; + break; + + case ACPT_S_GET_ADDR: + { + int family = AF_UNSPEC; + switch (c->accept_family) { + case BIO_FAMILY_IPV6: + if (1) { /* This is a trick we use to avoid bit rot. + * at least the "else" part will always be + * compiled. + */ +#ifdef AF_INET6 + family = AF_INET6; + } else { #endif - -#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, - }; - -BIO_METHOD *BIO_s_accept() - { - return(&methods_acceptp); - } - -static int acpt_new(bi) -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); - } - -BIO_ACCEPT *BIO_ACCEPT_new() - { - BIO_ACCEPT *ret; - - if ((ret=(BIO_ACCEPT *)Malloc(sizeof(BIO_ACCEPT))) == NULL) - return(NULL); - - memset(ret,0,sizeof(BIO_ACCEPT)); - ret->accept_sock=INVALID_SOCKET; - return(ret); - } - -void BIO_ACCEPT_free(a) -BIO_ACCEPT *a; - { - if (a->param_addr != NULL) Free(a->param_addr); - if (a->addr != NULL) Free(a->addr); - if (a->bio_chain != NULL) BIO_free(a->bio_chain); - Free(a); - } - -static void acpt_close_socket(bio) -BIO *bio; - { - BIO_ACCEPT *c; - - c=(BIO_ACCEPT *)bio->ptr; - if (c->accept_sock != INVALID_SOCKET) - { - shutdown(c->accept_sock,2); -# ifdef WINDOWS - closesocket(c->accept_sock); -# else - close(c->accept_sock); -# endif - c->accept_sock=INVALID_SOCKET; - bio->num=INVALID_SOCKET; - } - } - -static int acpt_free(a) -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(b,c) -BIO *b; -BIO_ACCEPT *c; - { - BIO *bio=NULL,*dbio; - unsigned long l=1; - 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); - if (s == INVALID_SOCKET) - return(-1); - -#ifdef FIONBIO - if (c->accept_nbio) - { - i=BIO_socket_ioctl(b->num,FIONBIO,&l); - if (i < 0) - { -#ifdef WINDOWS - closesocket(s); -#else - close(s); -# endif - BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET); - return(-1); - } - } -#endif - 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; - } - i=BIO_accept(c->accept_sock,&(c->addr)); - 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)); - -#ifdef FIONBIO - if (c->nbio) - { - i=BIO_socket_ioctl(i,FIONBIO,&l); - if (i < 0) - { - BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET); - goto err; - } - } + BIOerr(BIO_F_ACPT_STATE, BIO_R_UNAVAILABLE_IP_FAMILY); + goto exit_loop; + } + break; + case BIO_FAMILY_IPV4: + family = AF_INET; + break; + case BIO_FAMILY_IPANY: + family = AF_UNSPEC; + break; + default: + BIOerr(BIO_F_ACPT_STATE, BIO_R_UNSUPPORTED_IP_FAMILY); + goto exit_loop; + } + if (BIO_lookup(c->param_addr, c->param_serv, BIO_LOOKUP_SERVER, + family, SOCK_STREAM, &c->addr_first) == 0) + goto exit_loop; + } + if (c->addr_first == NULL) { + BIOerr(BIO_F_ACPT_STATE, BIO_R_LOOKUP_RETURNED_NOTHING); + goto exit_loop; + } + /* We're currently not iterating, but set this as preparation + * for possible future development in that regard + */ + c->addr_iter = c->addr_first; + c->state = ACPT_S_CREATE_SOCKET; + break; + + case ACPT_S_CREATE_SOCKET: + ret = BIO_socket(BIO_ADDRINFO_family(c->addr_iter), + BIO_ADDRINFO_socktype(c->addr_iter), + BIO_ADDRINFO_protocol(c->addr_iter), 0); + if (ret == (int)INVALID_SOCKET) { + SYSerr(SYS_F_SOCKET, get_last_socket_error()); + ERR_add_error_data(4, + "hostname=", c->param_addr, + " service=", c->param_serv); + BIOerr(BIO_F_ACPT_STATE, BIO_R_UNABLE_TO_CREATE_SOCKET); + goto exit_loop; + } + c->accept_sock = ret; + b->num = ret; + c->state = ACPT_S_LISTEN; + break; + + case ACPT_S_LISTEN: + { + if (!BIO_listen(c->accept_sock, + BIO_ADDRINFO_address(c->addr_iter), + c->bind_mode)) { + BIO_closesocket(c->accept_sock); + goto exit_loop; + } + } + + { + union BIO_sock_info_u info; + + info.addr = &c->cache_accepting_addr; + if (!BIO_sock_info(c->accept_sock, BIO_SOCK_INFO_ADDRESS, + &info)) { + BIO_closesocket(c->accept_sock); + goto exit_loop; + } + } + + c->cache_accepting_name = + BIO_ADDR_hostname_string(&c->cache_accepting_addr, 1); + c->cache_accepting_serv = + BIO_ADDR_service_string(&c->cache_accepting_addr, 1); + c->state = ACPT_S_ACCEPT; + s = -1; + ret = 1; + goto end; + + case ACPT_S_ACCEPT: + if (b->next_bio != NULL) { + c->state = ACPT_S_OK; + break; + } + BIO_clear_retry_flags(b); + b->retry_reason = 0; + + s = BIO_accept_ex(c->accept_sock, &c->cache_peer_addr, + c->accepted_mode); + + /* If the returned socket is invalid, this might still be + * retryable + */ + if (s < 0) { + if (BIO_sock_should_retry(s)) { + BIO_set_retry_special(b); + b->retry_reason = BIO_RR_ACCEPT; + goto end; + } + } + + /* If it wasn't retryable, we fail */ + if (s < 0) { + ret = s; + goto exit_loop; + } + + bio = BIO_new_socket(s, BIO_CLOSE); + if (bio == NULL) + goto exit_loop; + + BIO_set_callback(bio, BIO_get_callback(b)); + BIO_set_callback_arg(bio, BIO_get_callback_arg(b)); + + /* + * 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 exit_loop; + if (!BIO_push(dbio, bio)) + goto exit_loop; + bio = dbio; + } + if (BIO_push(b, bio) == NULL) + goto exit_loop; + + c->cache_peer_name = + BIO_ADDR_hostname_string(&c->cache_peer_addr, 1); + c->cache_peer_serv = + BIO_ADDR_service_string(&c->cache_peer_addr, 1); + c->state = ACPT_S_OK; + bio = NULL; + ret = 1; + goto end; + + case ACPT_S_OK: + if (b->next_bio == NULL) { + c->state = ACPT_S_ACCEPT; + break; + } + ret = 1; + goto end; + + default: + ret = 0; + goto end; + } + } + + exit_loop: + if (bio != NULL) + BIO_free(bio); + else if (s >= 0) + BIO_closesocket(s); + end: + return ret; +} + +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); + BIO_ADDRINFO_free(data->addr_first); + data->addr_first = NULL; + 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) { + char *hold_serv = data->param_serv; + /* We affect the hostname regardless. However, the input + * string might contain a host:service spec, so we must + * parse it, which might or might not affect the service + */ + OPENSSL_free(data->param_addr); + data->param_addr = NULL; + ret = BIO_parse_hostserv(ptr, + &data->param_addr, + &data->param_serv, + BIO_PARSE_PRIO_SERV); + if (hold_serv != data->param_serv) + OPENSSL_free(hold_serv); + b->init = 1; + } else if (num == 1) { + OPENSSL_free(data->param_serv); + data->param_serv = BUF_strdup(ptr); + b->init = 1; + } else if (num == 2) { + data->bind_mode |= BIO_SOCK_NONBLOCK; + } else if (num == 3) { + BIO_free(data->bio_chain); + data->bio_chain = (BIO *)ptr; + } else if (num == 4) { + data->accept_family = *(int *)ptr; + } + } else { + if (num == 2) { + data->bind_mode &= ~BIO_SOCK_NONBLOCK; + } + } + break; + case BIO_C_SET_NBIO: + if (num != 0) + data->accepted_mode |= BIO_SOCK_NONBLOCK; + else + data->accepted_mode &= ~BIO_SOCK_NONBLOCK; + break; + case BIO_C_SET_FD: + b->init = 1; + b->num = *((int *)ptr); + data->accept_sock = b->num; + data->state = ACPT_S_ACCEPT; + 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 (num == 0 && ptr != NULL) { + pp = (char **)ptr; + *pp = data->cache_accepting_name; + } else if (num == 1 && ptr != NULL) { + pp = (char **)ptr; + *pp = data->cache_accepting_serv; + } else if (num == 2 && ptr != NULL) { + pp = (char **)ptr; + *pp = data->cache_peer_name; + } else if (num == 3 && ptr != NULL) { + pp = (char **)ptr; + *pp = data->cache_peer_serv; + } else if (num == 4) { + switch (BIO_ADDRINFO_family(data->addr_iter)) { +#ifdef AF_INET6 + case AF_INET6: + ret = BIO_FAMILY_IPV6; + break; #endif - - /* 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) - { -#ifdef WINDOWS - closesocket(s); -#else - close(s); -# endif - } - 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(b,out,outl) -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(b,in,inl) -BIO *b; -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(b,cmd,num,ptr) -BIO *b; -int cmd; -long num; -char *ptr; - { - BIO *dbio; - 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) - 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_GET_FD: - if (b->init) - { - ip=(int *)ptr; - if (ip != NULL) - *ip=data->accept_sock; - ret=b->num; - } - 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_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(bp,str) -BIO *bp; -char *str; - { - int n,ret; - - n=strlen(str); - ret=acpt_write(bp,str,n); - return(ret); - } - -BIO *BIO_new_accept(str) -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); - } - } + case AF_INET: + ret = BIO_FAMILY_IPV4; + break; + case 0: + ret = data->accept_family; + break; + default: + ret = -1; + break; + } + } 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(const char *str) +{ + BIO *ret; + + ret = BIO_new(BIO_s_accept()); + if (ret == NULL) + return (NULL); + if (BIO_set_accept_port(ret, str)) + return (ret); + BIO_free(ret); + return (NULL); +} #endif