[thirdparty/openssl.git] / crypto / bio / b_sock.c

/*
 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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
 */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "bio_lcl.h"
#ifndef OPENSSL_NO_SOCK
# define SOCKET_PROTOCOL IPPROTO_TCP
# ifdef SO_MAXCONN
#  define MAX_LISTEN  SO_MAXCONN
# elif defined(SOMAXCONN)
#  define MAX_LISTEN  SOMAXCONN
# else
#  define MAX_LISTEN  32
# endif
# if defined(OPENSSL_SYS_WINDOWS)
static int wsa_init_done = 0;
# endif

# if !OPENSSL_API_1_1_0
int BIO_get_host_ip(const char *str, unsigned char *ip)
{
    BIO_ADDRINFO *res = NULL;
    int ret = 0;

    if (BIO_sock_init() != 1)
        return 0;               /* don't generate another error code here */

    if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
        size_t l;

        if (BIO_ADDRINFO_family(res) != AF_INET) {
            BIOerr(BIO_F_BIO_GET_HOST_IP,
                   BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
        } else if (BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l)) {
            /*
             * Because only AF_INET addresses will reach this far, we can assert
             * that l should be 4
             */
            if (ossl_assert(l == 4))
                ret = BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
        }
        BIO_ADDRINFO_free(res);
    } else {
        ERR_add_error_data(2, "host=", str);
    }

    return ret;
}

int BIO_get_port(const char *str, unsigned short *port_ptr)
{
    BIO_ADDRINFO *res = NULL;
    int ret = 0;

    if (str == NULL) {
        BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
        return 0;
    }

    if (BIO_sock_init() != 1)
        return 0;               /* don't generate another error code here */

    if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
        if (BIO_ADDRINFO_family(res) != AF_INET) {
            BIOerr(BIO_F_BIO_GET_PORT,
                   BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
        } else {
            *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
            ret = 1;
        }
        BIO_ADDRINFO_free(res);
    } else {
        ERR_add_error_data(2, "host=", str);
    }

    return ret;
}
# endif

int BIO_sock_error(int sock)
{
    int j = 0, i;
    socklen_t size = sizeof(j);

    /*
     * Note: under Windows the third parameter is of type (char *) whereas
     * under other systems it is (void *) if you don't have a cast it will
     * choke the compiler: if you do have a cast then you can either go for
     * (char *) or (void *).
     */
    i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
    if (i < 0)
        return get_last_socket_error();
    else
        return j;
}

# if !OPENSSL_API_1_1_0
struct hostent *BIO_gethostbyname(const char *name)
{
    /*
     * Caching gethostbyname() results forever is wrong, so we have to let
     * the true gethostbyname() worry about this
     */
    return gethostbyname(name);
}
# endif

int BIO_sock_init(void)
{
# ifdef OPENSSL_SYS_WINDOWS
    static struct WSAData wsa_state;

    if (!wsa_init_done) {
        wsa_init_done = 1;
        memset(&wsa_state, 0, sizeof(wsa_state));
        /*
         * Not making wsa_state available to the rest of the code is formally
         * wrong. But the structures we use are [believed to be] invariable
         * among Winsock DLLs, while API availability is [expected to be]
         * probed at run-time with DSO_global_lookup.
         */
        if (WSAStartup(0x0202, &wsa_state) != 0) {
            SYSerr("wsastartup", get_last_socket_error());
            BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
            return -1;
        }
    }
# endif                         /* OPENSSL_SYS_WINDOWS */
# ifdef WATT32
    extern int _watt_do_exit;
    _watt_do_exit = 0;          /* don't make sock_init() call exit() */
    if (sock_init())
        return -1;
# endif

    return 1;
}

void bio_sock_cleanup_int(void)
{
# ifdef OPENSSL_SYS_WINDOWS
    if (wsa_init_done) {
        wsa_init_done = 0;
        WSACleanup();
    }
# endif
}

int BIO_socket_ioctl(int fd, long type, void *arg)
{
    int i;

#  ifdef __DJGPP__
    i = ioctlsocket(fd, type, (char *)arg);
#  else
#   if defined(OPENSSL_SYS_VMS)
    /*-
     * 2011-02-18 SMS.
     * VMS ioctl() can't tolerate a 64-bit "void *arg", but we
     * observe that all the consumers pass in an "unsigned long *",
     * so we arrange a local copy with a short pointer, and use
     * that, instead.
     */
#    if __INITIAL_POINTER_SIZE == 64
#     define ARG arg_32p
#     pragma pointer_size save
#     pragma pointer_size 32
    unsigned long arg_32;
    unsigned long *arg_32p;
#     pragma pointer_size restore
    arg_32p = &arg_32;
    arg_32 = *((unsigned long *)arg);
#    else                       /* __INITIAL_POINTER_SIZE == 64 */
#     define ARG arg
#    endif                      /* __INITIAL_POINTER_SIZE == 64 [else] */
#   else                        /* defined(OPENSSL_SYS_VMS) */
#    define ARG arg
#   endif                       /* defined(OPENSSL_SYS_VMS) [else] */

    i = ioctlsocket(fd, type, ARG);
#  endif                        /* __DJGPP__ */
    if (i < 0)
        SYSerr("ioctlsocket", get_last_socket_error());
    return i;
}

# if !OPENSSL_API_1_1_0
int BIO_get_accept_socket(char *host, int bind_mode)
{
    int s = INVALID_SOCKET;
    char *h = NULL, *p = NULL;
    BIO_ADDRINFO *res = NULL;

    if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
        return INVALID_SOCKET;

    if (BIO_sock_init() != 1)
        return INVALID_SOCKET;

    if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
        goto err;

    if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
                        BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
        s = INVALID_SOCKET;
        goto err;
    }

    if (!BIO_listen(s, BIO_ADDRINFO_address(res),
                    bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
        BIO_closesocket(s);
        s = INVALID_SOCKET;
    }

 err:
    BIO_ADDRINFO_free(res);
    OPENSSL_free(h);
    OPENSSL_free(p);

    return s;
}

int BIO_accept(int sock, char **ip_port)
{
    BIO_ADDR res;
    int ret = -1;

    ret = BIO_accept_ex(sock, &res, 0);
    if (ret == (int)INVALID_SOCKET) {
        if (BIO_sock_should_retry(ret)) {
            ret = -2;
            goto end;
        }
        SYSerr("accept", get_last_socket_error());
        BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
        goto end;
    }

    if (ip_port != NULL) {
        char *host = BIO_ADDR_hostname_string(&res, 1);
        char *port = BIO_ADDR_service_string(&res, 1);
        if (host != NULL && port != NULL)
            *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
        else
            *ip_port = NULL;

        if (*ip_port == NULL) {
            BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
            BIO_closesocket(ret);
            ret = (int)INVALID_SOCKET;
        } else {
            strcpy(*ip_port, host);
            strcat(*ip_port, ":");
            strcat(*ip_port, port);
        }
        OPENSSL_free(host);
        OPENSSL_free(port);
    }

 end:
    return ret;
}
# endif

int BIO_set_tcp_ndelay(int s, int on)
{
    int ret = 0;
# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
    int opt;

#  ifdef SOL_TCP
    opt = SOL_TCP;
#  else
#   ifdef IPPROTO_TCP
    opt = IPPROTO_TCP;
#   endif
#  endif

    ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
# endif
    return (ret == 0);
}

int BIO_socket_nbio(int s, int mode)
{
    int ret = -1;
    int l;

    l = mode;
# ifdef FIONBIO
    l = mode;

    ret = BIO_socket_ioctl(s, FIONBIO, &l);
# elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) || defined(FNDELAY))
    /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */

    l = fcntl(s, F_GETFL, 0);
    if (l == -1) {
        SYSerr("fcntl", get_last_sys_error());
        ret = -1;
    } else {
#  if defined(O_NONBLOCK)
        l &= ~O_NONBLOCK;
#  else
        l &= ~FNDELAY; /* BSD4.x */
#  endif
        if (mode) {
#  if defined(O_NONBLOCK)
            l |= O_NONBLOCK;
#  else
            l |= FNDELAY; /* BSD4.x */
#  endif
        }
        ret = fcntl(s, F_SETFL, l);

        if (ret < 0) {
            SYSerr("fcntl", get_last_sys_error());
        }
    }
# else
    /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
    BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT);
# endif

    return (ret == 0);
}

int BIO_sock_info(int sock,
                  enum BIO_sock_info_type type, union BIO_sock_info_u *info)
{
    switch (type) {
    case BIO_SOCK_INFO_ADDRESS:
        {
            socklen_t addr_len;
            int ret = 0;
            addr_len = sizeof(*info->addr);
            ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
                              &addr_len);
            if (ret == -1) {
                SYSerr("getsockname", get_last_socket_error());
                BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
                return 0;
            }
            if ((size_t)addr_len > sizeof(*info->addr)) {
                BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
                return 0;
            }
        }
        break;
    default:
        BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE);
        return 0;
    }
    return 1;
}

#endif
Commit	Line	Data
b1322259	1	/*
3c7d0945	2	* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
09abbca1	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
b1322259 RS	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6 RE	8	*/
d02b48c6 RE	9
d02b48c6	10	#include <stdio.h>
58964a49	11	#include <stdlib.h>
d02b48c6	12	#include <errno.h>
28a0841b	13	#include "bio_lcl.h"
9ba4cc00	14	#ifndef OPENSSL_NO_SOCK
0f113f3e MC	15	# define SOCKET_PROTOCOL IPPROTO_TCP
	16	# ifdef SO_MAXCONN
	17	# define MAX_LISTEN SO_MAXCONN
	18	# elif defined(SOMAXCONN)
	19	# define MAX_LISTEN SOMAXCONN
	20	# else
	21	# define MAX_LISTEN 32
	22	# endif
1fbab1dc	23	# if defined(OPENSSL_SYS_WINDOWS)
0f113f3e MC	24	static int wsa_init_done = 0;
0f113f3e MC	25	# endif
d02b48c6	26
fcd2d5a6	27	# if !OPENSSL_API_1_1_0
6b691a5c	28	int BIO_get_host_ip(const char str, unsigned char ip)
0f113f3e	29	{
5bca70ca RL	30	BIO_ADDRINFO *res = NULL;
5bca70ca RL	31	int ret = 0;
0f113f3e	32
0f113f3e MC	33	if (BIO_sock_init() != 1)
	34	return 0; /* don't generate another error code here */
	35
5bca70ca RL	36	if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
5bca70ca RL	37	size_t l;
0f113f3e	38
5bca70ca RL	39	if (BIO_ADDRINFO_family(res) != AF_INET) {
	40	BIOerr(BIO_F_BIO_GET_HOST_IP,
	41	BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
86f31dd9 MC	42	} else if (BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l)) {
	43	/*
	44	* Because only AF_INET addresses will reach this far, we can assert
	45	* that l should be 4
	46	*/
	47	if (ossl_assert(l == 4))
	48	ret = BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
5bca70ca RL	49	}
	50	BIO_ADDRINFO_free(res);
	51	} else {
	52	ERR_add_error_data(2, "host=", str);
0f113f3e	53	}
ba9f2808	54
5bca70ca	55	return ret;
0f113f3e	56	}
d02b48c6	57
6b691a5c	58	int BIO_get_port(const char str, unsigned short port_ptr)
0f113f3e	59	{
5bca70ca RL	60	BIO_ADDRINFO *res = NULL;
5bca70ca RL	61	int ret = 0;
0f113f3e MC	62
	63	if (str == NULL) {
	64	BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
26a7d938	65	return 0;
0f113f3e	66	}
5bca70ca RL	67
	68	if (BIO_sock_init() != 1)
	69	return 0; /* don't generate another error code here */
	70
	71	if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
	72	if (BIO_ADDRINFO_family(res) != AF_INET) {
	73	BIOerr(BIO_F_BIO_GET_PORT,
	74	BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
	75	} else {
	76	*port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
	77	ret = 1;
0f113f3e	78	}
5bca70ca RL	79	BIO_ADDRINFO_free(res);
	80	} else {
	81	ERR_add_error_data(2, "host=", str);
0f113f3e	82	}
5bca70ca RL	83
5bca70ca RL	84	return ret;
0f113f3e	85	}
d33b215b	86	# endif
d02b48c6	87
6b691a5c	88	int BIO_sock_error(int sock)
0f113f3e	89	{
5bca70ca	90	int j = 0, i;
2bd8c853	91	socklen_t size = sizeof(j);
5bca70ca	92
0f113f3e MC	93	/*
	94	* Note: under Windows the third parameter is of type (char *) whereas
	95	* under other systems it is (void *) if you don't have a cast it will
	96	* choke the compiler: if you do have a cast then you can either go for
	97	* (char ) or (void ).
	98	*/
5bca70ca	99	i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
0f113f3e	100	if (i < 0)
26a7d938	101	return get_last_socket_error();
0f113f3e	102	else
26a7d938	103	return j;
0f113f3e MC	104	}
0f113f3e MC	105
fcd2d5a6	106	# if !OPENSSL_API_1_1_0
6b691a5c	107	struct hostent BIO_gethostbyname(const char name)
0f113f3e	108	{
0f113f3e MC	109	/*
	110	* Caching gethostbyname() results forever is wrong, so we have to let
	111	* the true gethostbyname() worry about this
	112	*/
4d428cd2	113	return gethostbyname(name);
0f113f3e	114	}
d33b215b	115	# endif
c602e7f4	116
6b691a5c	117	int BIO_sock_init(void)
0f113f3e MC	118	{
	119	# ifdef OPENSSL_SYS_WINDOWS
	120	static struct WSAData wsa_state;
	121
	122	if (!wsa_init_done) {
0f113f3e MC	123	wsa_init_done = 1;
	124	memset(&wsa_state, 0, sizeof(wsa_state));
	125	/*
	126	* Not making wsa_state available to the rest of the code is formally
0d4fb843	127	* wrong. But the structures we use are [believed to be] invariable
0f113f3e MC	128	* among Winsock DLLs, while API availability is [expected to be]
	129	* probed at run-time with DSO_global_lookup.
	130	*/
	131	if (WSAStartup(0x0202, &wsa_state) != 0) {
56c3a135	132	SYSerr("wsastartup", get_last_socket_error());
0f113f3e	133	BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
26a7d938	134	return -1;
0f113f3e MC	135	}
	136	}
	137	# endif /* OPENSSL_SYS_WINDOWS */
	138	# ifdef WATT32
	139	extern int _watt_do_exit;
	140	_watt_do_exit = 0; /* don't make sock_init() call exit() */
	141	if (sock_init())
26a7d938	142	return -1;
0f113f3e MC	143	# endif
0f113f3e MC	144
208fb891	145	return 1;
0f113f3e	146	}
d02b48c6	147
b3599dbb	148	void bio_sock_cleanup_int(void)
0f113f3e MC	149	{
	150	# ifdef OPENSSL_SYS_WINDOWS
	151	if (wsa_init_done) {
	152	wsa_init_done = 0;
4d8743f4	153	WSACleanup();
0f113f3e	154	}
0f113f3e MC	155	# endif
0f113f3e MC	156	}
d02b48c6	157
c029841e	158	int BIO_socket_ioctl(int fd, long type, void *arg)
0f113f3e MC	159	{
	160	int i;
	161
	162	# ifdef __DJGPP__
	163	i = ioctlsocket(fd, type, (char *)arg);
	164	# else
	165	# if defined(OPENSSL_SYS_VMS)
35a1cc90 MC	166	/*-
	167	* 2011-02-18 SMS.
	168	* VMS ioctl() can't tolerate a 64-bit "void *arg", but we
	169	* observe that all the consumers pass in an "unsigned long *",
	170	* so we arrange a local copy with a short pointer, and use
	171	* that, instead.
	172	*/
0f113f3e MC	173	# if __INITIAL_POINTER_SIZE == 64
	174	# define ARG arg_32p
	175	# pragma pointer_size save
	176	# pragma pointer_size 32
	177	unsigned long arg_32;
	178	unsigned long *arg_32p;
	179	# pragma pointer_size restore
	180	arg_32p = &arg_32;
	181	arg_32 = ((unsigned long )arg);
	182	# else /* __INITIAL_POINTER_SIZE == 64 */
	183	# define ARG arg
	184	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	185	# else /* defined(OPENSSL_SYS_VMS) */
	186	# define ARG arg
	187	# endif /* defined(OPENSSL_SYS_VMS) [else] */
	188
	189	i = ioctlsocket(fd, type, ARG);
	190	# endif /* __DJGPP__ */
	191	if (i < 0)
56c3a135	192	SYSerr("ioctlsocket", get_last_socket_error());
26a7d938	193	return i;
0f113f3e	194	}
0f113f3e	195
fcd2d5a6	196	# if !OPENSSL_API_1_1_0
6b691a5c	197	int BIO_get_accept_socket(char *host, int bind_mode)
0f113f3e	198	{
5bca70ca RL	199	int s = INVALID_SOCKET;
	200	char h = NULL, p = NULL;
	201	BIO_ADDRINFO *res = NULL;
0f113f3e	202
5bca70ca RL	203	if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
5bca70ca RL	204	return INVALID_SOCKET;
0f113f3e	205
5bca70ca RL	206	if (BIO_sock_init() != 1)
5bca70ca RL	207	return INVALID_SOCKET;
0f113f3e	208
5bca70ca	209	if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
0f113f3e MC	210	goto err;
0f113f3e MC	211
5bca70ca RL	212	if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
	213	BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
	214	s = INVALID_SOCKET;
0f113f3e MC	215	goto err;
0f113f3e MC	216	}
0f113f3e	217
5bca70ca RL	218	if (!BIO_listen(s, BIO_ADDRINFO_address(res),
	219	bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
	220	BIO_closesocket(s);
	221	s = INVALID_SOCKET;
0f113f3e	222	}
5bca70ca	223
0f113f3e	224	err:
5bca70ca RL	225	BIO_ADDRINFO_free(res);
	226	OPENSSL_free(h);
	227	OPENSSL_free(p);
	228
	229	return s;
0f113f3e	230	}
d02b48c6	231
5bca70ca	232	int BIO_accept(int sock, char **ip_port)
0f113f3e	233	{
d9d8e7a9	234	BIO_ADDR res;
5bca70ca	235	int ret = -1;
0f113f3e	236
d9d8e7a9	237	ret = BIO_accept_ex(sock, &res, 0);
b13fdc48	238	if (ret == (int)INVALID_SOCKET) {
5bca70ca RL	239	if (BIO_sock_should_retry(ret)) {
	240	ret = -2;
	241	goto end;
	242	}
56c3a135	243	SYSerr("accept", get_last_socket_error());
0f113f3e MC	244	BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
	245	goto end;
	246	}
	247
5bca70ca	248	if (ip_port != NULL) {
d9d8e7a9 RS	249	char *host = BIO_ADDR_hostname_string(&res, 1);
d9d8e7a9 RS	250	char *port = BIO_ADDR_service_string(&res, 1);
ad9a0562 MC	251	if (host != NULL && port != NULL)
	252	*ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
	253	else
	254	*ip_port = NULL;
	255
	256	if (*ip_port == NULL) {
	257	BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
	258	BIO_closesocket(ret);
	259	ret = (int)INVALID_SOCKET;
	260	} else {
	261	strcpy(*ip_port, host);
	262	strcat(*ip_port, ":");
	263	strcat(*ip_port, port);
	264	}
5bca70ca RL	265	OPENSSL_free(host);
5bca70ca RL	266	OPENSSL_free(port);
0f113f3e	267	}
5bca70ca	268
0f113f3e	269	end:
5bca70ca	270	return ret;
0f113f3e	271	}
d33b215b	272	# endif
d02b48c6	273
6b691a5c	274	int BIO_set_tcp_ndelay(int s, int on)
0f113f3e MC	275	{
	276	int ret = 0;
	277	# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) \|\| defined(SOL_TCP))
	278	int opt;
d02b48c6	279
0f113f3e MC	280	# ifdef SOL_TCP
	281	opt = SOL_TCP;
	282	# else
	283	# ifdef IPPROTO_TCP
	284	opt = IPPROTO_TCP;
	285	# endif
	286	# endif
dfeab068	287
0f113f3e MC	288	ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
	289	# endif
	290	return (ret == 0);
	291	}
	292
	293	int BIO_socket_nbio(int s, int mode)
	294	{
	295	int ret = -1;
	296	int l;
	297
	298	l = mode;
	299	# ifdef FIONBIO
27f172d9 RS	300	l = mode;
27f172d9 RS	301
0f113f3e	302	ret = BIO_socket_ioctl(s, FIONBIO, &l);
27f172d9 RS	303	# elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) \|\| defined(FNDELAY))
	304	/* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
	305
	306	l = fcntl(s, F_GETFL, 0);
	307	if (l == -1) {
56c3a135	308	SYSerr("fcntl", get_last_sys_error());
27f172d9 RS	309	ret = -1;
	310	} else {
	311	# if defined(O_NONBLOCK)
	312	l &= ~O_NONBLOCK;
	313	# else
	314	l &= ~FNDELAY; /* BSD4.x */
	315	# endif
	316	if (mode) {
	317	# if defined(O_NONBLOCK)
	318	l \|= O_NONBLOCK;
	319	# else
	320	l \|= FNDELAY; /* BSD4.x */
	321	# endif
	322	}
	323	ret = fcntl(s, F_SETFL, l);
	324
	325	if (ret < 0) {
56c3a135	326	SYSerr("fcntl", get_last_sys_error());
27f172d9 RS	327	}
	328	}
	329	# else
	330	/* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
	331	BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT);
0f113f3e	332	# endif
27f172d9	333
0f113f3e MC	334	return (ret == 0);
0f113f3e MC	335	}
d33b215b RL	336
	337	int BIO_sock_info(int sock,
	338	enum BIO_sock_info_type type, union BIO_sock_info_u *info)
	339	{
	340	switch (type) {
	341	case BIO_SOCK_INFO_ADDRESS:
	342	{
	343	socklen_t addr_len;
	344	int ret = 0;
	345	addr_len = sizeof(*info->addr);
	346	ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
	347	&addr_len);
	348	if (ret == -1) {
56c3a135	349	SYSerr("getsockname", get_last_socket_error());
d33b215b RL	350	BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
	351	return 0;
	352	}
59d9bb59	353	if ((size_t)addr_len > sizeof(*info->addr)) {
d33b215b RL	354	BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
	355	return 0;
	356	}
	357	}
	358	break;
	359	default:
	360	BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE);
	361	return 0;
	362	}
	363	return 1;
	364	}
	365
4a1fbd13	366	#endif