-/* crypto/bio/b_sock.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
#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>
+#include "bio_lcl.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
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
+# if OPENSSL_API_COMPAT < 0x10100000L
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;
- }
+ BIO_ADDRINFO *res = NULL;
+ int ret = 0;
- /*
- * 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);
+ if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
+ size_t l;
- /* 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;
- }
+ if (BIO_ADDRINFO_family(res) != AF_INET) {
+ BIOerr(BIO_F_BIO_GET_HOST_IP,
+ BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
+ } else {
+ 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 */
+ OPENSSL_assert(l == 4);
- if (he->h_addrtype != AF_INET) {
- BIOerr(BIO_F_BIO_GET_HOST_IP,
- BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
- goto err;
+ BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
+ ret = 1;
+ }
+ BIO_ADDRINFO_free(res);
+ } else {
+ ERR_add_error_data(2, "host=", str);
}
- 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;
+ return ret;
}
int BIO_get_port(const char *str, unsigned short *port_ptr)
{
- int i;
- struct servent *s;
+ BIO_ADDRINFO *res = NULL;
+ int ret = 0;
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);
- }
+
+ 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 (1);
+
+ return ret;
}
+# endif
int BIO_sock_error(int sock)
{
- int j, i;
- union {
- size_t s;
- int i;
- } size;
-
- /* heuristic way to adapt for platforms that expect 64-bit optlen */
- size.s = 0, size.i = sizeof(j);
+ int j = 0, i;
+ socklen_t size = 0;
+
/*
* 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);
+ i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &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
-
+# if OPENSSL_API_COMPAT < 0x10100000L
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
# 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
}
+# endif
int BIO_sock_init(void)
{
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
+ * 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.
*/
# 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)
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.
- */
+ /*-
+ * 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
}
# 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);
-}
-
+# if OPENSSL_API_COMPAT < 0x10100000L
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;
- }
- }
+ int s = INVALID_SOCKET;
+ char *h = NULL, *p = NULL;
+ BIO_ADDRINFO *res = NULL;
- if ((*p_getaddrinfo.f) (h, p, &hint, &res))
- break;
+ if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
+ return INVALID_SOCKET;
- 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_sock_init() != 1)
+ return INVALID_SOCKET;
- if (!BIO_get_port(p, &port))
+ if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
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);
+ if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
+ BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
+ s = INVALID_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);
+ if (!BIO_listen(s, BIO_ADDRINFO_address(res),
+ bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
+ BIO_closesocket(s);
s = INVALID_SOCKET;
}
- return (s);
+
+ err:
+ BIO_ADDRINFO_free(res);
+ OPENSSL_free(h);
+ OPENSSL_free(p);
+
+ return s;
}
-int BIO_accept(int sock, char **addr)
+int BIO_accept(int sock, char **ip_port)
{
- int ret = INVALID_SOCKET;
- unsigned long l;
- unsigned short port;
- char *p;
+ BIO_ADDR *res = BIO_ADDR_new();
+ int ret = -1;
- 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 (res == NULL) {
+ BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
+ return ret;
}
- 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>
- */
+ ret = BIO_accept_ex(sock, res, 0);
- 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);
+ if (ret == (int)INVALID_SOCKET) {
+ if (BIO_sock_should_retry(ret)) {
+ ret = -2;
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)
+ SYSerr(SYS_F_ACCEPT, get_last_socket_error());
+ BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
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);
+
+ if (ip_port != NULL) {
+ char *host = BIO_ADDR_hostname_string(res, 1);
+ char *port = BIO_ADDR_service_string(res, 1);
+ *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
+ strcpy(*ip_port, host);
+ strcat(*ip_port, ":");
+ strcat(*ip_port, port);
+ OPENSSL_free(host);
+ OPENSSL_free(port);
+ }
+
end:
- return (ret);
+ BIO_ADDR_free(res);
+ return ret;
}
+# endif
int BIO_set_tcp_ndelay(int s, int on)
{
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(SYS_F_FCNTL, get_last_rtl_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(SYS_F_FCNTL, get_last_rtl_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(SYS_F_GETSOCKNAME, get_last_socket_error());
+ BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
+ return 0;
+ }
+ if (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
projects / openssl.git / blobdiff