diff options
Diffstat (limited to 'thirdparty/openssl/crypto/bio/b_sock.c')
| -rw-r--r-- | thirdparty/openssl/crypto/bio/b_sock.c | 962 |
1 files changed, 0 insertions, 962 deletions
diff --git a/thirdparty/openssl/crypto/bio/b_sock.c b/thirdparty/openssl/crypto/bio/b_sock.c deleted file mode 100644 index 5bad0a2bad..0000000000 --- a/thirdparty/openssl/crypto/bio/b_sock.c +++ /dev/null @@ -1,962 +0,0 @@ -/* crypto/bio/b_sock.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#define USE_SOCKETS -#include "cryptlib.h" -#include <openssl/bio.h> -#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) -# include <netdb.h> -# if defined(NETWARE_CLIB) -# include <sys/ioctl.h> -NETDB_DEFINE_CONTEXT -# endif -#endif -#ifndef OPENSSL_NO_SOCK -# include <openssl/dso.h> -# 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) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) -static int wsa_init_done = 0; -# endif - -/* - * WSAAPI specifier is required to make indirect calls to run-time - * linked WinSock 2 functions used in this module, to be specific - * [get|free]addrinfo and getnameinfo. This is because WinSock uses - * uses non-C calling convention, __stdcall vs. __cdecl, on x86 - * Windows. On non-WinSock platforms WSAAPI needs to be void. - */ -# ifndef WSAAPI -# define WSAAPI -# endif - -# if 0 -static unsigned long BIO_ghbn_hits = 0L; -static unsigned long BIO_ghbn_miss = 0L; - -# define GHBN_NUM 4 -static struct ghbn_cache_st { - char name[129]; - struct hostent *ent; - unsigned long order; -} ghbn_cache[GHBN_NUM]; -# endif - -static int get_ip(const char *str, unsigned char *ip); -# if 0 -static void ghbn_free(struct hostent *a); -static struct hostent *ghbn_dup(struct hostent *a); -# endif -int BIO_get_host_ip(const char *str, unsigned char *ip) -{ - int i; - int err = 1; - int locked = 0; - struct hostent *he; - - i = get_ip(str, ip); - if (i < 0) { - BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_INVALID_IP_ADDRESS); - goto err; - } - - /* - * At this point, we have something that is most probably correct in some - * way, so let's init the socket. - */ - if (BIO_sock_init() != 1) - return 0; /* don't generate another error code here */ - - /* - * If the string actually contained an IP address, we need not do - * anything more - */ - if (i > 0) - return (1); - - /* do a gethostbyname */ - CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); - locked = 1; - he = BIO_gethostbyname(str); - if (he == NULL) { - BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_BAD_HOSTNAME_LOOKUP); - goto err; - } - - /* cast to short because of win16 winsock definition */ - if ((short)he->h_addrtype != AF_INET) { - BIOerr(BIO_F_BIO_GET_HOST_IP, - BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); - goto err; - } - for (i = 0; i < 4; i++) - ip[i] = he->h_addr_list[0][i]; - err = 0; - - err: - if (locked) - CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); - if (err) { - ERR_add_error_data(2, "host=", str); - return 0; - } else - return 1; -} - -int BIO_get_port(const char *str, unsigned short *port_ptr) -{ - int i; - struct servent *s; - - if (str == NULL) { - BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED); - return (0); - } - i = atoi(str); - if (i != 0) - *port_ptr = (unsigned short)i; - else { - CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); - /* - * Note: under VMS with SOCKETSHR, it seems like the first parameter - * is 'char *', instead of 'const char *' - */ -# ifndef CONST_STRICT - s = getservbyname((char *)str, "tcp"); -# else - s = getservbyname(str, "tcp"); -# endif - if (s != NULL) - *port_ptr = ntohs((unsigned short)s->s_port); - CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); - if (s == NULL) { - if (strcmp(str, "http") == 0) - *port_ptr = 80; - else if (strcmp(str, "telnet") == 0) - *port_ptr = 23; - else if (strcmp(str, "socks") == 0) - *port_ptr = 1080; - else if (strcmp(str, "https") == 0) - *port_ptr = 443; - else if (strcmp(str, "ssl") == 0) - *port_ptr = 443; - else if (strcmp(str, "ftp") == 0) - *port_ptr = 21; - else if (strcmp(str, "gopher") == 0) - *port_ptr = 70; -# if 0 - else if (strcmp(str, "wais") == 0) - *port_ptr = 21; -# endif - else { - SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error()); - ERR_add_error_data(3, "service='", str, "'"); - return (0); - } - } - } - return (1); -} - -int BIO_sock_error(int sock) -{ - int j, i; - union { - size_t s; - int i; - } size; - -# if defined(OPENSSL_SYS_BEOS_R5) - return 0; -# endif - - /* heuristic way to adapt for platforms that expect 64-bit optlen */ - size.s = 0, size.i = 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, (void *)&size); - if (i < 0) - return (1); - else - return (j); -} - -# if 0 -long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) -{ - int i; - char **p; - - switch (cmd) { - case BIO_GHBN_CTRL_HITS: - return (BIO_ghbn_hits); - /* break; */ - case BIO_GHBN_CTRL_MISSES: - return (BIO_ghbn_miss); - /* break; */ - case BIO_GHBN_CTRL_CACHE_SIZE: - return (GHBN_NUM); - /* break; */ - case BIO_GHBN_CTRL_GET_ENTRY: - if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) { - p = (char **)parg; - if (p == NULL) - return (0); - *p = ghbn_cache[iarg].name; - ghbn_cache[iarg].name[128] = '\0'; - return (1); - } - return (0); - /* break; */ - case BIO_GHBN_CTRL_FLUSH: - for (i = 0; i < GHBN_NUM; i++) - ghbn_cache[i].order = 0; - break; - default: - return (0); - } - return (1); -} -# endif - -# if 0 -static struct hostent *ghbn_dup(struct hostent *a) -{ - struct hostent *ret; - int i, j; - - MemCheck_off(); - ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); - if (ret == NULL) - return (NULL); - memset(ret, 0, sizeof(struct hostent)); - - for (i = 0; a->h_aliases[i] != NULL; i++) ; - i++; - ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *)); - if (ret->h_aliases == NULL) - goto err; - memset(ret->h_aliases, 0, i * sizeof(char *)); - - for (i = 0; a->h_addr_list[i] != NULL; i++) ; - i++; - ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *)); - if (ret->h_addr_list == NULL) - goto err; - memset(ret->h_addr_list, 0, i * sizeof(char *)); - - j = strlen(a->h_name) + 1; - if ((ret->h_name = OPENSSL_malloc(j)) == NULL) - goto err; - memcpy((char *)ret->h_name, a->h_name, j); - for (i = 0; a->h_aliases[i] != NULL; i++) { - j = strlen(a->h_aliases[i]) + 1; - if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL) - goto err; - memcpy(ret->h_aliases[i], a->h_aliases[i], j); - } - ret->h_length = a->h_length; - ret->h_addrtype = a->h_addrtype; - for (i = 0; a->h_addr_list[i] != NULL; i++) { - if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL) - goto err; - memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length); - } - if (0) { - err: - if (ret != NULL) - ghbn_free(ret); - ret = NULL; - } - MemCheck_on(); - return (ret); -} - -static void ghbn_free(struct hostent *a) -{ - int i; - - if (a == NULL) - return; - - if (a->h_aliases != NULL) { - for (i = 0; a->h_aliases[i] != NULL; i++) - OPENSSL_free(a->h_aliases[i]); - OPENSSL_free(a->h_aliases); - } - if (a->h_addr_list != NULL) { - for (i = 0; a->h_addr_list[i] != NULL; i++) - OPENSSL_free(a->h_addr_list[i]); - OPENSSL_free(a->h_addr_list); - } - if (a->h_name != NULL) - OPENSSL_free(a->h_name); - OPENSSL_free(a); -} - -# endif - -struct hostent *BIO_gethostbyname(const char *name) -{ -# if 1 - /* - * Caching gethostbyname() results forever is wrong, so we have to let - * the true gethostbyname() worry about this - */ -# if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) - return gethostbyname((char *)name); -# else - return gethostbyname(name); -# endif -# else - struct hostent *ret; - int i, lowi = 0, j; - unsigned long low = (unsigned long)-1; - -# if 0 - /* - * It doesn't make sense to use locking here: The function interface is - * not thread-safe, because threads can never be sure when some other - * thread destroys the data they were given a pointer to. - */ - CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); -# endif - j = strlen(name); - if (j < 128) { - for (i = 0; i < GHBN_NUM; i++) { - if (low > ghbn_cache[i].order) { - low = ghbn_cache[i].order; - lowi = i; - } - if (ghbn_cache[i].order > 0) { - if (strncmp(name, ghbn_cache[i].name, 128) == 0) - break; - } - } - } else - i = GHBN_NUM; - - if (i == GHBN_NUM) { /* no hit */ - BIO_ghbn_miss++; - /* - * Note: under VMS with SOCKETSHR, it seems like the first parameter - * is 'char *', instead of 'const char *' - */ -# ifndef CONST_STRICT - ret = gethostbyname((char *)name); -# else - ret = gethostbyname(name); -# endif - - if (ret == NULL) - goto end; - if (j > 128) { /* too big to cache */ -# if 0 - /* - * If we were trying to make this function thread-safe (which is - * bound to fail), we'd have to give up in this case (or allocate - * more memory). - */ - ret = NULL; -# endif - goto end; - } - - /* else add to cache */ - if (ghbn_cache[lowi].ent != NULL) - ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ - ghbn_cache[lowi].name[0] = '\0'; - - if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) { - BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE); - goto end; - } - strncpy(ghbn_cache[lowi].name, name, 128); - ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits; - } else { - BIO_ghbn_hits++; - ret = ghbn_cache[i].ent; - ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits; - } - end: -# if 0 - CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); -# endif - return (ret); -# endif -} - -int BIO_sock_init(void) -{ -# ifdef OPENSSL_SYS_WINDOWS - static struct WSAData wsa_state; - - if (!wsa_init_done) { - int err; - - 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 [beleived 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 = WSAGetLastError(); - SYSerr(SYS_F_WSASTARTUP, err); - 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 - -# if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) - WORD wVerReq; - WSADATA wsaData; - int err; - - if (!wsa_init_done) { - wsa_init_done = 1; - wVerReq = MAKEWORD(2, 0); - err = WSAStartup(wVerReq, &wsaData); - if (err != 0) { - SYSerr(SYS_F_WSASTARTUP, err); - BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP); - return (-1); - } - } -# endif - - return (1); -} - -void BIO_sock_cleanup(void) -{ -# ifdef OPENSSL_SYS_WINDOWS - if (wsa_init_done) { - wsa_init_done = 0; -# if 0 /* this call is claimed to be non-present in - * Winsock2 */ - WSACancelBlockingCall(); -# endif - WSACleanup(); - } -# elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) - if (wsa_init_done) { - wsa_init_done = 0; - WSACleanup(); - } -# endif -} - -# if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 - -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(SYS_F_IOCTLSOCKET, get_last_socket_error()); - return (i); -} -# endif /* __VMS_VER */ - -/* - * The reason I have implemented this instead of using sscanf is because - * Visual C 1.52c gives an unresolved external when linking a DLL :-( - */ -static int get_ip(const char *str, unsigned char ip[4]) -{ - unsigned int tmp[4]; - int num = 0, c, ok = 0; - - tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0; - - for (;;) { - c = *(str++); - if ((c >= '0') && (c <= '9')) { - ok = 1; - tmp[num] = tmp[num] * 10 + c - '0'; - if (tmp[num] > 255) - return (0); - } else if (c == '.') { - if (!ok) - return (-1); - if (num == 3) - return (0); - num++; - ok = 0; - } else if (c == '\0' && (num == 3) && ok) - break; - else - return (0); - } - ip[0] = tmp[0]; - ip[1] = tmp[1]; - ip[2] = tmp[2]; - ip[3] = tmp[3]; - return (1); -} - -int BIO_get_accept_socket(char *host, int bind_mode) -{ - int ret = 0; - union { - struct sockaddr sa; - struct sockaddr_in sa_in; -# if OPENSSL_USE_IPV6 - struct sockaddr_in6 sa_in6; -# endif - } server, client; - int s = INVALID_SOCKET, cs, addrlen; - unsigned char ip[4]; - unsigned short port; - char *str = NULL, *e; - char *h, *p; - unsigned long l; - int err_num; - - if (BIO_sock_init() != 1) - return (INVALID_SOCKET); - - if ((str = BUF_strdup(host)) == NULL) - return (INVALID_SOCKET); - - h = p = NULL; - h = str; - for (e = str; *e; e++) { - if (*e == ':') { - p = e; - } else if (*e == '/') { - *e = '\0'; - break; - } - } - if (p) - *p++ = '\0'; /* points at last ':', '::port' is special - * [see below] */ - else - p = h, h = NULL; - -# ifdef EAI_FAMILY - do { - static union { - void *p; - int (WSAAPI *f) (const char *, const char *, - const struct addrinfo *, struct addrinfo **); - } p_getaddrinfo = { - NULL - }; - static union { - void *p; - void (WSAAPI *f) (struct addrinfo *); - } p_freeaddrinfo = { - NULL - }; - struct addrinfo *res, hint; - - if (p_getaddrinfo.p == NULL) { - if ((p_getaddrinfo.p = DSO_global_lookup("getaddrinfo")) == NULL - || (p_freeaddrinfo.p = - DSO_global_lookup("freeaddrinfo")) == NULL) - p_getaddrinfo.p = (void *)-1; - } - if (p_getaddrinfo.p == (void *)-1) - break; - - /* - * '::port' enforces IPv6 wildcard listener. Some OSes, e.g. Solaris, - * default to IPv6 without any hint. Also note that commonly IPv6 - * wildchard socket can service IPv4 connections just as well... - */ - memset(&hint, 0, sizeof(hint)); - hint.ai_flags = AI_PASSIVE; - if (h) { - if (strchr(h, ':')) { - if (h[1] == '\0') - h = NULL; -# if OPENSSL_USE_IPV6 - hint.ai_family = AF_INET6; -# else - h = NULL; -# endif - } else if (h[0] == '*' && h[1] == '\0') { - hint.ai_family = AF_INET; - h = NULL; - } - } - - if ((*p_getaddrinfo.f) (h, p, &hint, &res)) - break; - - addrlen = res->ai_addrlen <= sizeof(server) ? - res->ai_addrlen : sizeof(server); - memcpy(&server, res->ai_addr, addrlen); - - (*p_freeaddrinfo.f) (res); - goto again; - } while (0); -# endif - - if (!BIO_get_port(p, &port)) - goto err; - - memset((char *)&server, 0, sizeof(server)); - server.sa_in.sin_family = AF_INET; - server.sa_in.sin_port = htons(port); - addrlen = sizeof(server.sa_in); - - if (h == NULL || strcmp(h, "*") == 0) - server.sa_in.sin_addr.s_addr = INADDR_ANY; - else { - if (!BIO_get_host_ip(h, &(ip[0]))) - goto err; - l = (unsigned long) - ((unsigned long)ip[0] << 24L) | - ((unsigned long)ip[1] << 16L) | - ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]); - server.sa_in.sin_addr.s_addr = htonl(l); - } - - again: - s = socket(server.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL); - if (s == INVALID_SOCKET) { - SYSerr(SYS_F_SOCKET, get_last_socket_error()); - ERR_add_error_data(3, "port='", host, "'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET); - goto err; - } -# ifdef SO_REUSEADDR - if (bind_mode == BIO_BIND_REUSEADDR) { - int i = 1; - - ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i)); - bind_mode = BIO_BIND_NORMAL; - } -# endif - if (bind(s, &server.sa, addrlen) == -1) { -# ifdef SO_REUSEADDR - err_num = get_last_socket_error(); - if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && -# ifdef OPENSSL_SYS_WINDOWS - /* - * Some versions of Windows define EADDRINUSE to a dummy value. - */ - (err_num == WSAEADDRINUSE)) -# else - (err_num == EADDRINUSE)) -# endif - { - client = server; - if (h == NULL || strcmp(h, "*") == 0) { -# if OPENSSL_USE_IPV6 - if (client.sa.sa_family == AF_INET6) { - memset(&client.sa_in6.sin6_addr, 0, - sizeof(client.sa_in6.sin6_addr)); - client.sa_in6.sin6_addr.s6_addr[15] = 1; - } else -# endif - if (client.sa.sa_family == AF_INET) { - client.sa_in.sin_addr.s_addr = htonl(0x7F000001); - } else - goto err; - } - cs = socket(client.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL); - if (cs != INVALID_SOCKET) { - int ii; - ii = connect(cs, &client.sa, addrlen); - closesocket(cs); - if (ii == INVALID_SOCKET) { - bind_mode = BIO_BIND_REUSEADDR; - closesocket(s); - goto again; - } - /* else error */ - } - /* else error */ - } -# endif - SYSerr(SYS_F_BIND, err_num); - ERR_add_error_data(3, "port='", host, "'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET); - goto err; - } - if (listen(s, MAX_LISTEN) == -1) { - SYSerr(SYS_F_BIND, get_last_socket_error()); - ERR_add_error_data(3, "port='", host, "'"); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET); - goto err; - } - ret = 1; - err: - if (str != NULL) - OPENSSL_free(str); - if ((ret == 0) && (s != INVALID_SOCKET)) { - closesocket(s); - s = INVALID_SOCKET; - } - return (s); -} - -int BIO_accept(int sock, char **addr) -{ - int ret = INVALID_SOCKET; - unsigned long l; - unsigned short port; - char *p; - - struct { - /* - * As for following union. Trouble is that there are platforms - * that have socklen_t and there are platforms that don't, on - * some platforms socklen_t is int and on some size_t. So what - * one can do? One can cook #ifdef spaghetti, which is nothing - * but masochistic. Or one can do union between int and size_t. - * One naturally does it primarily for 64-bit platforms where - * sizeof(int) != sizeof(size_t). But would it work? Note that - * if size_t member is initialized to 0, then later int member - * assignment naturally does the job on little-endian platforms - * regardless accept's expectations! What about big-endians? - * If accept expects int*, then it works, and if size_t*, then - * length value would appear as unreasonably large. But this - * won't prevent it from filling in the address structure. The - * trouble of course would be if accept returns more data than - * actual buffer can accomodate and overwrite stack... That's - * where early OPENSSL_assert comes into picture. Besides, the - * only 64-bit big-endian platform found so far that expects - * size_t* is HP-UX, where stack grows towards higher address. - * <appro> - */ - union { - size_t s; - int i; - } len; - union { - struct sockaddr sa; - struct sockaddr_in sa_in; -# if OPENSSL_USE_IPV6 - struct sockaddr_in6 sa_in6; -# endif - } from; - } sa; - - sa.len.s = 0; - sa.len.i = sizeof(sa.from); - memset(&sa.from, 0, sizeof(sa.from)); - ret = accept(sock, &sa.from.sa, (void *)&sa.len); - if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) { - OPENSSL_assert(sa.len.s <= sizeof(sa.from)); - sa.len.i = (int)sa.len.s; - /* use sa.len.i from this point */ - } - if (ret == INVALID_SOCKET) { - if (BIO_sock_should_retry(ret)) - return -2; - SYSerr(SYS_F_ACCEPT, get_last_socket_error()); - BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR); - goto end; - } - - if (addr == NULL) - goto end; - -# ifdef EAI_FAMILY - do { - char h[NI_MAXHOST], s[NI_MAXSERV]; - size_t nl; - static union { - void *p; - int (WSAAPI *f) (const struct sockaddr *, size_t /* socklen_t */ , - char *, size_t, char *, size_t, int); - } p_getnameinfo = { - NULL - }; - /* - * 2nd argument to getnameinfo is specified to be socklen_t. - * Unfortunately there is a number of environments where socklen_t is - * not defined. As it's passed by value, it's safe to pass it as - * size_t... <appro> - */ - - if (p_getnameinfo.p == NULL) { - if ((p_getnameinfo.p = DSO_global_lookup("getnameinfo")) == NULL) - p_getnameinfo.p = (void *)-1; - } - if (p_getnameinfo.p == (void *)-1) - break; - - if ((*p_getnameinfo.f) (&sa.from.sa, sa.len.i, h, sizeof(h), s, - sizeof(s), NI_NUMERICHOST | NI_NUMERICSERV)) - break; - nl = strlen(h) + strlen(s) + 2; - p = *addr; - if (p) { - *p = '\0'; - p = OPENSSL_realloc(p, nl); - } else { - p = OPENSSL_malloc(nl); - } - if (p == NULL) { - BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); - goto end; - } - *addr = p; - BIO_snprintf(*addr, nl, "%s:%s", h, s); - goto end; - } while (0); -# endif - if (sa.from.sa.sa_family != AF_INET) - goto end; - l = ntohl(sa.from.sa_in.sin_addr.s_addr); - port = ntohs(sa.from.sa_in.sin_port); - if (*addr == NULL) { - if ((p = OPENSSL_malloc(24)) == NULL) { - BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE); - goto end; - } - *addr = p; - } - BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d", - (unsigned char)(l >> 24L) & 0xff, - (unsigned char)(l >> 16L) & 0xff, - (unsigned char)(l >> 8L) & 0xff, - (unsigned char)(l) & 0xff, port); - end: - return (ret); -} - -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 - ret = BIO_socket_ioctl(s, FIONBIO, &l); -# endif - return (ret == 0); -} -#endif |