/src/openssl31/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 */
#  if defined(OPENSSL_TANDEM_FLOSS)
#   include <floss.h(floss_select)>
#  endif
# 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

# 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

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;
        }
    }
# 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;

        if (*ip_port == NULL) {
            ERR_raise(ERR_LIB_BIO, 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) {
        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)
{
    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);
}
#endif /* !defined(OPENSSL_NO_SOCK) */

Coverage Report

Created: 2025-06-13 06:58

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