/src/openssl/crypto/bio/bio_sock.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2025 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 "bio_local.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 defined __TANDEM
#  include <unistd.h>
#  include <sys/time.h> /* select */
# elif defined _WIN32
#  include <winsock.h> /* for type fd_set */
# else
#  include <unistd.h>
#  if defined __VMS
#   include <sys/socket.h>
#  elif defined _HPUX_SOURCE
#   include <sys/time.h>
#  else
#   include <sys/select.h>
#  endif
# endif
# include "internal/sockets.h" /* for openssl_fdset() */

# ifndef OPENSSL_NO_DEPRECATED_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) {
            ERR_raise(ERR_LIB_BIO, 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) {
        ERR_raise(ERR_LIB_BIO, 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) {
            ERR_raise(ERR_LIB_BIO, 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;
}

# ifndef OPENSSL_NO_DEPRECATED_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

# ifdef BIO_HAVE_WSAMSG
LPFN_WSARECVMSG bio_WSARecvMsg;
LPFN_WSASENDMSG bio_WSASendMsg;
# 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) {
            ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
                           "calling wsastartup()");
            ERR_raise(ERR_LIB_BIO, BIO_R_WSASTARTUP);
            return -1;
        }

        /*
         * On Windows, some socket functions are not exposed as a prototype.
         * Instead, their function pointers must be loaded via this elaborate
         * process...
         */
#  ifdef BIO_HAVE_WSAMSG
        {
            GUID id_WSARecvMsg = WSAID_WSARECVMSG;
            GUID id_WSASendMsg = WSAID_WSASENDMSG;
            DWORD len_out = 0;
            SOCKET s;

            s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
            if (s != INVALID_SOCKET) {
                if (WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER,
                             &id_WSARecvMsg, sizeof(id_WSARecvMsg),
                             &bio_WSARecvMsg, sizeof(bio_WSARecvMsg),
                             &len_out, NULL, NULL) != 0
                    || len_out != sizeof(bio_WSARecvMsg))
                    bio_WSARecvMsg = NULL;

                if (WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER,
                             &id_WSASendMsg, sizeof(id_WSASendMsg),
                             &bio_WSASendMsg, sizeof(bio_WSASendMsg),
                             &len_out, NULL, NULL) != 0
                    || len_out != sizeof(bio_WSASendMsg))
                    bio_WSASendMsg = NULL;

                closesocket(s);
            }
        }
#  endif
    }
# 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)
        ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
                       "calling ioctlsocket()");
    return i;
}

# ifndef OPENSSL_NO_DEPRECATED_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)
        goto err;

    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;
        }
        ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
                       "calling accept()");
        ERR_raise(ERR_LIB_BIO, 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;
            ERR_raise(ERR_LIB_BIO, ERR_R_BIO_LIB);
        }

        if (*ip_port == NULL) {
            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) {
        ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
                       "calling fcntl()");
        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) {
            ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
                           "calling fcntl()");
        }
    }
# else
    /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
    ERR_raise(ERR_LIB_BIO, 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) {
                ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
                               "calling getsockname()");
                ERR_raise(ERR_LIB_BIO, BIO_R_GETSOCKNAME_ERROR);
                return 0;
            }
            if ((size_t)addr_len > sizeof(*info->addr)) {
                ERR_raise(ERR_LIB_BIO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
                return 0;
            }
        }
        break;
    default:
        ERR_raise(ERR_LIB_BIO, BIO_R_UNKNOWN_INFO_TYPE);
        return 0;
    }
    return 1;
}

/*
 * Wait on fd at most until max_time; succeed immediately if max_time == 0.
 * If for_read == 0 then assume to wait for writing, else wait for reading.
 * Returns -1 on error, 0 on timeout, and 1 on success.
 */
int BIO_socket_wait(int fd, int for_read, time_t max_time)
{
# if defined(OPENSSL_SYS_WINDOWS) || !defined(POLLIN)
    fd_set confds;
    struct timeval tv;
    time_t now;

#  ifdef _WIN32
    if ((SOCKET)fd == INVALID_SOCKET)
#  else
    if (fd < 0 || fd >= FD_SETSIZE)
#  endif
        return -1;
    if (max_time == 0)
        return 1;

    now = time(NULL);
    if (max_time < now)
        return 0;

    FD_ZERO(&confds);
    openssl_fdset(fd, &confds);
    tv.tv_usec = 0;
    tv.tv_sec = (long)(max_time - now); /* might overflow */
    return select(fd + 1, for_read ? &confds : NULL,
                  for_read ? NULL : &confds, NULL, &tv);
# else
    struct pollfd confds;
    time_t now;

    if (fd < 0)
        return -1;
    if (max_time == 0)
        return 1;

    now = time(NULL);
    if (max_time < now)
        return 0;

    confds.fd = fd;
    confds.events = for_read ? POLLIN : POLLOUT;
    return poll(&confds, 1, (int)(max_time - now) * 1000);
# endif
}
#endif /* !defined(OPENSSL_NO_SOCK) */

Coverage Report

Created: 2025-06-13 06:57

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
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
8		*/
9
10		#include <stdio.h>
11		#include <stdlib.h>
12		#include "bio_local.h"
13
14		#ifndef OPENSSL_NO_SOCK
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
23		# if defined(OPENSSL_SYS_WINDOWS)
24		static int wsa_init_done = 0;
25		# endif
26
27		# if defined __TANDEM
28		# include <unistd.h>
29		# include <sys/time.h> /* select */
30		# elif defined _WIN32
31		# include <winsock.h> /* for type fd_set */
32		# else
33		# include <unistd.h>
34		# if defined __VMS
35		# include <sys/socket.h>
36		# elif defined _HPUX_SOURCE
37		# include <sys/time.h>
38		# else
39		# include <sys/select.h>
40		# endif
41		# endif
42		# include "internal/sockets.h" /* for openssl_fdset() */
43
44		# ifndef OPENSSL_NO_DEPRECATED_1_1_0
45		int BIO_get_host_ip(const char str, unsigned char ip)
46	0	{
47	0	BIO_ADDRINFO *res = NULL;
48	0	int ret = 0;
49
50	0	if (BIO_sock_init() != 1)
51	0	return 0; /* don't generate another error code here */
52
53	0	if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
54	0	size_t l;
55
56	0	if (BIO_ADDRINFO_family(res) != AF_INET) {
57	0	ERR_raise(ERR_LIB_BIO, BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
58	0	} else if (BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l)) {
59		/*
60		* Because only AF_INET addresses will reach this far, we can assert
61		* that l should be 4
62		*/
63	0	if (ossl_assert(l == 4))
64	0	ret = BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
65	0	}
66	0	BIO_ADDRINFO_free(res);
67	0	} else {
68	0	ERR_add_error_data(2, "host=", str);
69	0	}
70
71	0	return ret;
72	0	}
73
74		int BIO_get_port(const char str, unsigned short port_ptr)
75	0	{
76	0	BIO_ADDRINFO *res = NULL;
77	0	int ret = 0;
78
79	0	if (str == NULL) {
80	0	ERR_raise(ERR_LIB_BIO, BIO_R_NO_PORT_DEFINED);
81	0	return 0;
82	0	}
83
84	0	if (BIO_sock_init() != 1)
85	0	return 0; /* don't generate another error code here */
86
87	0	if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
88	0	if (BIO_ADDRINFO_family(res) != AF_INET) {
89	0	ERR_raise(ERR_LIB_BIO, BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
90	0	} else {
91	0	*port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
92	0	ret = 1;
93	0	}
94	0	BIO_ADDRINFO_free(res);
95	0	} else {
96	0	ERR_add_error_data(2, "host=", str);
97	0	}
98
99	0	return ret;
100	0	}
101		# endif
102
103		int BIO_sock_error(int sock)
104	0	{
105	0	int j = 0, i;
106	0	socklen_t size = sizeof(j);
107
108		/*
109		* Note: under Windows the third parameter is of type (char *) whereas
110		* under other systems it is (void *) if you don't have a cast it will
111		* choke the compiler: if you do have a cast then you can either go for
112		* (char ) or (void ).
113		*/
114	0	i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
115	0	if (i < 0)
116	0	return get_last_socket_error();
117	0	else
118	0	return j;
119	0	}
120
121		# ifndef OPENSSL_NO_DEPRECATED_1_1_0
122		struct hostent BIO_gethostbyname(const char name)
123	0	{
124		/*
125		* Caching gethostbyname() results forever is wrong, so we have to let
126		* the true gethostbyname() worry about this
127		*/
128	0	return gethostbyname(name);
129	0	}
130		# endif
131
132		# ifdef BIO_HAVE_WSAMSG
133		LPFN_WSARECVMSG bio_WSARecvMsg;
134		LPFN_WSASENDMSG bio_WSASendMsg;
135		# endif
136
137		int BIO_sock_init(void)
138	0	{
139		# ifdef OPENSSL_SYS_WINDOWS
140		static struct WSAData wsa_state;
141
142		if (!wsa_init_done) {
143		wsa_init_done = 1;
144		memset(&wsa_state, 0, sizeof(wsa_state));
145		/*
146		* Not making wsa_state available to the rest of the code is formally
147		* wrong. But the structures we use are [believed to be] invariable
148		* among Winsock DLLs, while API availability is [expected to be]
149		* probed at run-time with DSO_global_lookup.
150		*/
151		if (WSAStartup(0x0202, &wsa_state) != 0) {
152		ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
153		"calling wsastartup()");
154		ERR_raise(ERR_LIB_BIO, BIO_R_WSASTARTUP);
155		return -1;
156		}
157
158		/*
159		* On Windows, some socket functions are not exposed as a prototype.
160		* Instead, their function pointers must be loaded via this elaborate
161		* process...
162		*/
163		# ifdef BIO_HAVE_WSAMSG
164		{
165		GUID id_WSARecvMsg = WSAID_WSARECVMSG;
166		GUID id_WSASendMsg = WSAID_WSASENDMSG;
167		DWORD len_out = 0;
168		SOCKET s;
169
170		s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
171		if (s != INVALID_SOCKET) {
172		if (WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER,
173		&id_WSARecvMsg, sizeof(id_WSARecvMsg),
174		&bio_WSARecvMsg, sizeof(bio_WSARecvMsg),
175		&len_out, NULL, NULL) != 0
176		\|\| len_out != sizeof(bio_WSARecvMsg))
177		bio_WSARecvMsg = NULL;
178
179		if (WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER,
180		&id_WSASendMsg, sizeof(id_WSASendMsg),
181		&bio_WSASendMsg, sizeof(bio_WSASendMsg),
182		&len_out, NULL, NULL) != 0
183		\|\| len_out != sizeof(bio_WSASendMsg))
184		bio_WSASendMsg = NULL;
185
186		closesocket(s);
187		}
188		}
189		# endif
190		}
191		# endif /* OPENSSL_SYS_WINDOWS */
192		# ifdef WATT32
193		extern int _watt_do_exit;
194		_watt_do_exit = 0; /* don't make sock_init() call exit() */
195		if (sock_init())
196		return -1;
197		# endif
198
199	0	return 1;
200	0	}
201
202		void bio_sock_cleanup_int(void)
203	2	{
204		# ifdef OPENSSL_SYS_WINDOWS
205		if (wsa_init_done) {
206		wsa_init_done = 0;
207		WSACleanup();
208		}
209		# endif
210	2	}
211
212		int BIO_socket_ioctl(int fd, long type, void *arg)
213	0	{
214	0	int i;
215
216		# ifdef __DJGPP__
217		i = ioctlsocket(fd, type, (char *)arg);
218		# else
219		# if defined(OPENSSL_SYS_VMS)
220		/*-
221		* 2011-02-18 SMS.
222		* VMS ioctl() can't tolerate a 64-bit "void *arg", but we
223		* observe that all the consumers pass in an "unsigned long *",
224		* so we arrange a local copy with a short pointer, and use
225		* that, instead.
226		*/
227		# if __INITIAL_POINTER_SIZE == 64
228		# define ARG arg_32p
229		# pragma pointer_size save
230		# pragma pointer_size 32
231		unsigned long arg_32;
232		unsigned long *arg_32p;
233		# pragma pointer_size restore
234		arg_32p = &arg_32;
235		arg_32 = ((unsigned long )arg);
236		# else /* __INITIAL_POINTER_SIZE == 64 */
237		# define ARG arg
238		# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
239		# else /* defined(OPENSSL_SYS_VMS) */
240	0	# define ARG arg
241	0	# endif /* defined(OPENSSL_SYS_VMS) [else] */
242
243	0	i = ioctlsocket(fd, type, ARG);
244	0	# endif /* __DJGPP__ */
245	0	if (i < 0)
246	0	ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
247	0	"calling ioctlsocket()");
248	0	return i;
249	0	}
250
251		# ifndef OPENSSL_NO_DEPRECATED_1_1_0
252		int BIO_get_accept_socket(char *host, int bind_mode)
253	0	{
254	0	int s = INVALID_SOCKET;
255	0	char h = NULL, p = NULL;
256	0	BIO_ADDRINFO *res = NULL;
257
258	0	if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
259	0	return INVALID_SOCKET;
260
261	0	if (BIO_sock_init() != 1)
262	0	goto err;
263
264	0	if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
265	0	goto err;
266
267	0	if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
268	0	BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
269	0	s = INVALID_SOCKET;
270	0	goto err;
271	0	}
272
273	0	if (!BIO_listen(s, BIO_ADDRINFO_address(res),
274	0	bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
275	0	BIO_closesocket(s);
276	0	s = INVALID_SOCKET;
277	0	}
278
279	0	err:
280	0	BIO_ADDRINFO_free(res);
281	0	OPENSSL_free(h);
282	0	OPENSSL_free(p);
283
284	0	return s;
285	0	}
286
287		int BIO_accept(int sock, char **ip_port)
288	0	{
289	0	BIO_ADDR res;
290	0	int ret = -1;
291
292	0	ret = BIO_accept_ex(sock, &res, 0);
293	0	if (ret == (int)INVALID_SOCKET) {
294	0	if (BIO_sock_should_retry(ret)) {
295	0	ret = -2;
296	0	goto end;
297	0	}
298	0	ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
299	0	"calling accept()");
300	0	ERR_raise(ERR_LIB_BIO, BIO_R_ACCEPT_ERROR);
301	0	goto end;
302	0	}
303
304	0	if (ip_port != NULL) {
305	0	char *host = BIO_ADDR_hostname_string(&res, 1);
306	0	char *port = BIO_ADDR_service_string(&res, 1);
307	0	if (host != NULL && port != NULL) {
308	0	*ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
309	0	} else {
310	0	*ip_port = NULL;
311	0	ERR_raise(ERR_LIB_BIO, ERR_R_BIO_LIB);
312	0	}
313
314	0	if (*ip_port == NULL) {
315	0	BIO_closesocket(ret);
316	0	ret = (int)INVALID_SOCKET;
317	0	} else {
318	0	strcpy(*ip_port, host);
319	0	strcat(*ip_port, ":");
320	0	strcat(*ip_port, port);
321	0	}
322	0	OPENSSL_free(host);
323	0	OPENSSL_free(port);
324	0	}
325
326	0	end:
327	0	return ret;
328	0	}
329		# endif
330
331		int BIO_set_tcp_ndelay(int s, int on)
332	0	{
333	0	int ret = 0;
334	0	# if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) \|\| defined(SOL_TCP))
335	0	int opt;
336
337	0	# ifdef SOL_TCP
338	0	opt = SOL_TCP;
339		# else
340		# ifdef IPPROTO_TCP
341		opt = IPPROTO_TCP;
342		# endif
343		# endif
344
345	0	ret = setsockopt(s, opt, TCP_NODELAY, (char *)&on, sizeof(on));
346	0	# endif
347	0	return (ret == 0);
348	0	}
349
350		int BIO_socket_nbio(int s, int mode)
351	0	{
352	0	int ret = -1;
353	0	int l;
354
355	0	l = mode;
356	0	# ifdef FIONBIO
357	0	l = mode;
358
359	0	ret = BIO_socket_ioctl(s, FIONBIO, &l);
360		# elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) \|\| defined(FNDELAY))
361		/* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
362
363		l = fcntl(s, F_GETFL, 0);
364		if (l == -1) {
365		ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
366		"calling fcntl()");
367		ret = -1;
368		} else {
369		# if defined(O_NONBLOCK)
370		l &= ~O_NONBLOCK;
371		# else
372		l &= ~FNDELAY; /* BSD4.x */
373		# endif
374		if (mode) {
375		# if defined(O_NONBLOCK)
376		l \|= O_NONBLOCK;
377		# else
378		l \|= FNDELAY; /* BSD4.x */
379		# endif
380		}
381		ret = fcntl(s, F_SETFL, l);
382
383		if (ret < 0) {
384		ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
385		"calling fcntl()");
386		}
387		}
388		# else
389		/* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
390		ERR_raise(ERR_LIB_BIO, ERR_R_PASSED_INVALID_ARGUMENT);
391		# endif
392
393	0	return (ret == 0);
394	0	}
395
396		int BIO_sock_info(int sock,
397		enum BIO_sock_info_type type, union BIO_sock_info_u *info)
398	0	{
399	0	switch (type) {
400	0	case BIO_SOCK_INFO_ADDRESS:
401	0	{
402	0	socklen_t addr_len;
403	0	int ret = 0;
404	0	addr_len = sizeof(*info->addr);
405	0	ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
406	0	&addr_len);
407	0	if (ret == -1) {
408	0	ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
409	0	"calling getsockname()");
410	0	ERR_raise(ERR_LIB_BIO, BIO_R_GETSOCKNAME_ERROR);
411	0	return 0;
412	0	}
413	0	if ((size_t)addr_len > sizeof(*info->addr)) {
414	0	ERR_raise(ERR_LIB_BIO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
415	0	return 0;
416	0	}
417	0	}
418	0	break;
419	0	default:
420	0	ERR_raise(ERR_LIB_BIO, BIO_R_UNKNOWN_INFO_TYPE);
421	0	return 0;
422	0	}
423	0	return 1;
424	0	}
425
426		/*
427		* Wait on fd at most until max_time; succeed immediately if max_time == 0.
428		* If for_read == 0 then assume to wait for writing, else wait for reading.
429		* Returns -1 on error, 0 on timeout, and 1 on success.
430		*/
431		int BIO_socket_wait(int fd, int for_read, time_t max_time)
432	0	{
433		# if defined(OPENSSL_SYS_WINDOWS) \|\| !defined(POLLIN)
434		fd_set confds;
435		struct timeval tv;
436		time_t now;
437
438		# ifdef _WIN32
439		if ((SOCKET)fd == INVALID_SOCKET)
440		# else
441		if (fd < 0 \|\| fd >= FD_SETSIZE)
442		# endif
443		return -1;
444		if (max_time == 0)
445		return 1;
446
447		now = time(NULL);
448		if (max_time < now)
449		return 0;
450
451		FD_ZERO(&confds);
452		openssl_fdset(fd, &confds);
453		tv.tv_usec = 0;
454		tv.tv_sec = (long)(max_time - now); /* might overflow */
455		return select(fd + 1, for_read ? &confds : NULL,
456		for_read ? NULL : &confds, NULL, &tv);
457		# else
458	0	struct pollfd confds;
459	0	time_t now;
460
461	0	if (fd < 0)
462	0	return -1;
463	0	if (max_time == 0)
464	0	return 1;
465
466	0	now = time(NULL);
467	0	if (max_time < now)
468	0	return 0;
469
470	0	confds.fd = fd;
471	0	confds.events = for_read ? POLLIN : POLLOUT;
472	0	return poll(&confds, 1, (int)(max_time - now) * 1000);
473	0	# endif
474	0	}
475		#endif /* !defined(OPENSSL_NO_SOCK) */