diff options
Diffstat (limited to 'winsup/cygwin/net.cc')
| -rw-r--r-- | winsup/cygwin/net.cc | 2149 |
1 files changed, 0 insertions, 2149 deletions
diff --git a/winsup/cygwin/net.cc b/winsup/cygwin/net.cc deleted file mode 100644 index ecf0cdf45..000000000 --- a/winsup/cygwin/net.cc +++ /dev/null @@ -1,2149 +0,0 @@ -/* net.cc: network-related routines. - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -/* #define DEBUG_NEST_ON 1 */ - -#define __INSIDE_CYGWIN_NET__ - -#include "winsup.h" -#include <errno.h> -#include <sys/socket.h> -#include <sys/un.h> -#include <iphlpapi.h> - -#include <stdlib.h> -#include <unistd.h> -#include <netdb.h> -#define USE_SYS_TYPES_FD_SET -#include <winsock2.h> -#include "cygerrno.h" -#include "security.h" -#include "fhandler.h" -#include "path.h" -#include "dtable.h" -#include "cygheap.h" -#include "sigproc.h" -#include "pinfo.h" -#include "registry.h" -#include "wsock_event.h" - -extern "C" { -int h_errno; - -int __stdcall rcmd (char **ahost, unsigned short inport, char *locuser, - char *remuser, char *cmd, SOCKET *fd2p); -int __stdcall rexec (char **ahost, unsigned short inport, char *locuser, - char *password, char *cmd, SOCKET *fd2p); -int __stdcall rresvport (int *); -int sscanf (const char *, const char *, ...); -} /* End of "C" section */ - -LPWSAOVERLAPPED -wsock_event::prepare () -{ - LPWSAOVERLAPPED ret = NULL; - - SetLastError (0); - if ((event = WSACreateEvent ()) != WSA_INVALID_EVENT) - { - memset (&ovr, 0, sizeof ovr); - ovr.hEvent = event; - ret = &ovr; - } - else if (GetLastError () == ERROR_PROC_NOT_FOUND) /* winsock2 not available */ - WSASetLastError (0); - - debug_printf ("%d = wsock_event::prepare ()", ret); - return ret; -} - -int -wsock_event::wait (int socket, LPDWORD flags) -{ - int ret = -1; - WSAEVENT ev[2] = { event, signal_arrived }; - - switch (WSAWaitForMultipleEvents (2, ev, FALSE, WSA_INFINITE, FALSE)) - { - case WSA_WAIT_EVENT_0: - DWORD len; - if (WSAGetOverlappedResult (socket, &ovr, &len, FALSE, flags)) - ret = (int) len; - break; - case WSA_WAIT_EVENT_0 + 1: - if (!CancelIo ((HANDLE)socket)) - { - debug_printf ("CancelIo() %E, fallback to blocking io"); - WSAGetOverlappedResult (socket, &ovr, &len, TRUE, flags); - } - else - WSASetLastError (WSAEINTR); - break; - case WSA_WAIT_FAILED: - break; - default: /* Should be impossible. *LOL* */ - WSASetLastError (WSAEFAULT); - break; - } - WSACloseEvent (event); - event = NULL; - return ret; -} - -WSADATA wsadata; - -/* Cygwin internal */ -static fhandler_socket * -get (const int fd) -{ - cygheap_fdget cfd (fd); - if (cfd < 0) - return 0; - - fhandler_socket *const fh = cfd->is_socket (); - if (!fh) - set_errno (ENOTSOCK); - - return fh; -} - -/* Cygwin internal */ -static SOCKET __stdcall -set_socket_inheritance (SOCKET sock) -{ - SOCKET osock = sock; - if (!DuplicateHandle (hMainProc, (HANDLE) sock, hMainProc, (HANDLE *) &sock, - 0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE)) - system_printf ("DuplicateHandle failed %E"); - else - debug_printf ("DuplicateHandle succeeded osock %p, sock %p", osock, sock); - return sock; -} - -/* htonl: standards? */ -extern "C" unsigned long int -htonl (unsigned long int x) -{ - return ((((x & 0x000000ffU) << 24) | - ((x & 0x0000ff00U) << 8) | - ((x & 0x00ff0000U) >> 8) | - ((x & 0xff000000U) >> 24))); -} - -/* ntohl: standards? */ -extern "C" unsigned long int -ntohl (unsigned long int x) -{ - return htonl (x); -} - -/* htons: standards? */ -extern "C" unsigned short -htons (unsigned short x) -{ - return ((((x & 0x000000ffU) << 8) | - ((x & 0x0000ff00U) >> 8))); -} - -/* ntohs: standards? */ -extern "C" unsigned short -ntohs (unsigned short x) -{ - return htons (x); -} - -/* Cygwin internal */ -static void -dump_protoent (struct protoent *p) -{ - if (p) - debug_printf ("protoent %s %x %x", p->p_name, p->p_aliases, p->p_proto); -} - -/* exported as inet_ntoa: BSD 4.3 */ -extern "C" char * -cygwin_inet_ntoa (struct in_addr in) -{ -#ifdef _MT_SAFE -#define ntoa_buf _reent_winsup ()->_ntoa_buf -#else - static char *ntoa_buf = NULL; -#endif - - char *res = inet_ntoa (in); - if (ntoa_buf) - { - free (ntoa_buf); - ntoa_buf = NULL; - } - if (res) - ntoa_buf = strdup (res); - return ntoa_buf; -} - -/* exported as inet_addr: BSD 4.3 */ -extern "C" unsigned long -cygwin_inet_addr (const char *cp) -{ - if (check_null_str_errno (cp)) - return INADDR_NONE; - unsigned long res = inet_addr (cp); - return res; -} - -/* exported as inet_aton: BSD 4.3 - inet_aton is not exported by wsock32 and ws2_32, - so it has to be implemented here. */ -extern "C" int -cygwin_inet_aton (const char *cp, struct in_addr *inp) -{ - if (check_null_str_errno (cp) || check_null_invalid_struct_errno (inp)) - return 0; - - unsigned long res = inet_addr (cp); - if (res == INADDR_NONE && strcmp (cp, "255.255.255.255")) - return 0; - if (inp) - inp->s_addr = res; - return 1; -} - -/* undocumented in wsock32.dll */ -extern "C" unsigned int WINAPI inet_network (const char *); - -extern "C" unsigned int -cygwin_inet_network (const char *cp) -{ - if (check_null_str_errno (cp)) - return INADDR_NONE; - unsigned int res = inet_network (cp); - return res; -} - -/* inet_netof is in the standard BSD sockets library. It is useless - for modern networks, since it assumes network values which are no - longer meaningful, but some existing code calls it. */ - -extern "C" unsigned long -inet_netof (struct in_addr in) -{ - unsigned long i, res; - - i = ntohl (in.s_addr); - if (IN_CLASSA (i)) - res = (i & IN_CLASSA_NET) >> IN_CLASSA_NSHIFT; - else if (IN_CLASSB (i)) - res = (i & IN_CLASSB_NET) >> IN_CLASSB_NSHIFT; - else - res = (i & IN_CLASSC_NET) >> IN_CLASSC_NSHIFT; - - - return res; -} - -/* inet_makeaddr is in the standard BSD sockets library. It is - useless for modern networks, since it assumes network values which - are no longer meaningful, but some existing code calls it. */ - -extern "C" struct in_addr -inet_makeaddr (int net, int lna) -{ - unsigned long i; - struct in_addr in; - - if (net < IN_CLASSA_MAX) - i = (net << IN_CLASSA_NSHIFT) | (lna & IN_CLASSA_HOST); - else if (net < IN_CLASSB_MAX) - i = (net << IN_CLASSB_NSHIFT) | (lna & IN_CLASSB_HOST); - else if (net < 0x1000000) - i = (net << IN_CLASSC_NSHIFT) | (lna & IN_CLASSC_HOST); - else - i = net | lna; - - in.s_addr = htonl (i); - - - return in; -} - -struct tl -{ - int w; - const char *s; - int e; -}; - -static NO_COPY struct tl errmap[] = -{ - {WSAEINTR, "WSAEINTR", EINTR}, - {WSAEWOULDBLOCK, "WSAEWOULDBLOCK", EWOULDBLOCK}, - {WSAEINPROGRESS, "WSAEINPROGRESS", EINPROGRESS}, - {WSAEALREADY, "WSAEALREADY", EALREADY}, - {WSAENOTSOCK, "WSAENOTSOCK", ENOTSOCK}, - {WSAEDESTADDRREQ, "WSAEDESTADDRREQ", EDESTADDRREQ}, - {WSAEMSGSIZE, "WSAEMSGSIZE", EMSGSIZE}, - {WSAEPROTOTYPE, "WSAEPROTOTYPE", EPROTOTYPE}, - {WSAENOPROTOOPT, "WSAENOPROTOOPT", ENOPROTOOPT}, - {WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT", EPROTONOSUPPORT}, - {WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT", ESOCKTNOSUPPORT}, - {WSAEOPNOTSUPP, "WSAEOPNOTSUPP", EOPNOTSUPP}, - {WSAEPFNOSUPPORT, "WSAEPFNOSUPPORT", EPFNOSUPPORT}, - {WSAEAFNOSUPPORT, "WSAEAFNOSUPPORT", EAFNOSUPPORT}, - {WSAEADDRINUSE, "WSAEADDRINUSE", EADDRINUSE}, - {WSAEADDRNOTAVAIL, "WSAEADDRNOTAVAIL", EADDRNOTAVAIL}, - {WSAENETDOWN, "WSAENETDOWN", ENETDOWN}, - {WSAENETUNREACH, "WSAENETUNREACH", ENETUNREACH}, - {WSAENETRESET, "WSAENETRESET", ENETRESET}, - {WSAECONNABORTED, "WSAECONNABORTED", ECONNABORTED}, - {WSAECONNRESET, "WSAECONNRESET", ECONNRESET}, - {WSAENOBUFS, "WSAENOBUFS", ENOBUFS}, - {WSAEISCONN, "WSAEISCONN", EISCONN}, - {WSAENOTCONN, "WSAENOTCONN", ENOTCONN}, - {WSAESHUTDOWN, "WSAESHUTDOWN", ESHUTDOWN}, - {WSAETOOMANYREFS, "WSAETOOMANYREFS", ETOOMANYREFS}, - {WSAETIMEDOUT, "WSAETIMEDOUT", ETIMEDOUT}, - {WSAECONNREFUSED, "WSAECONNREFUSED", ECONNREFUSED}, - {WSAELOOP, "WSAELOOP", ELOOP}, - {WSAENAMETOOLONG, "WSAENAMETOOLONG", ENAMETOOLONG}, - {WSAEHOSTDOWN, "WSAEHOSTDOWN", EHOSTDOWN}, - {WSAEHOSTUNREACH, "WSAEHOSTUNREACH", EHOSTUNREACH}, - {WSAENOTEMPTY, "WSAENOTEMPTY", ENOTEMPTY}, - {WSAEPROCLIM, "WSAEPROCLIM", EPROCLIM}, - {WSAEUSERS, "WSAEUSERS", EUSERS}, - {WSAEDQUOT, "WSAEDQUOT", EDQUOT}, - {WSAESTALE, "WSAESTALE", ESTALE}, - {WSAEREMOTE, "WSAEREMOTE", EREMOTE}, - {WSAEINVAL, "WSAEINVAL", EINVAL}, - {WSAEFAULT, "WSAEFAULT", EFAULT}, - {0, "NOERROR", 0}, - {0, NULL, 0} -}; - -static int -find_winsock_errno (int why) -{ - for (int i = 0; errmap[i].s != NULL; ++i) - if (why == errmap[i].w) - return errmap[i].e; - - return EPERM; -} - -/* Cygwin internal */ -void -__set_winsock_errno (const char *fn, int ln) -{ - DWORD werr = WSAGetLastError (); - int err = find_winsock_errno (werr); - set_errno (err); - syscall_printf ("%s:%d - winsock error %d -> errno %d", fn, ln, werr, err); -} - -/* - * Since the member `s' isn't used for debug output we can use it - * for the error text returned by herror and hstrerror. - */ -static NO_COPY struct tl host_errmap[] = -{ - {WSAHOST_NOT_FOUND, "Unknown host", HOST_NOT_FOUND}, - {WSATRY_AGAIN, "Host name lookup failure", TRY_AGAIN}, - {WSANO_RECOVERY, "Unknown server error", NO_RECOVERY}, - {WSANO_DATA, "No address associated with name", NO_DATA}, - {0, NULL, 0} -}; - -/* Cygwin internal */ -static void -set_host_errno () -{ - int i; - - int why = WSAGetLastError (); - for (i = 0; host_errmap[i].w != 0; ++i) - if (why == host_errmap[i].w) - break; - - if (host_errmap[i].w != 0) - h_errno = host_errmap[i].e; - else - h_errno = NETDB_INTERNAL; -} - -static void -free_char_list (char **clist) -{ - if (clist) - { - for (char **cl = clist; *cl; ++cl) - free (*cl); - free (clist); - } -} - -static char ** -dup_char_list (char **src) -{ - char **dst; - int cnt = 0; - - for (char **cl = src; *cl; ++cl) - ++cnt; - if (!(dst = (char **) calloc (cnt + 1, sizeof *dst))) - return NULL; - while (cnt-- > 0) - if (!(dst[cnt] = strdup (src[cnt]))) - return NULL; - return dst; -} - -#define free_addr_list(addr_list) free_char_list (addr_list) - -static char ** -dup_addr_list (char **src, unsigned int size) -{ - char **dst; - int cnt = 0; - - for (char **cl = src; *cl; ++cl) - ++cnt; - if (!(dst = (char **) calloc (cnt + 1, sizeof *dst))) - return NULL; - while (cnt-- > 0) - { - if (!(dst[cnt] = (char *) malloc (size))) - return NULL; - memcpy (dst[cnt], src[cnt], size); - } - return dst; -} - -static void -free_protoent_ptr (struct protoent *&p) -{ - if (p) - { - debug_printf ("protoent: %s", p->p_name); - - if (p->p_name) - free (p->p_name); - free_char_list (p->p_aliases); - p = NULL; - } -} - -static struct protoent * -dup_protoent_ptr (struct protoent *src) -{ - if (!src) - return NULL; - - struct protoent *dst = (struct protoent *) calloc (1, sizeof *dst); - if (!dst) - return NULL; - - debug_printf ("protoent: %s", src->p_name); - - dst->p_proto = src->p_proto; - if (src->p_name && !(dst->p_name = strdup (src->p_name))) - goto out; - if (src->p_aliases && !(dst->p_aliases = dup_char_list (src->p_aliases))) - goto out; - - debug_printf ("protoent: copied %s", dst->p_name); - - return dst; - -out: - free_protoent_ptr (dst); - return NULL; -} - -#ifdef _MT_SAFE -#define protoent_buf _reent_winsup ()->_protoent_buf -#else - static struct protoent *protoent_buf = NULL; -#endif - -/* exported as getprotobyname: standards? */ -extern "C" struct protoent * -cygwin_getprotobyname (const char *p) -{ - if (check_null_str_errno (p)) - return NULL; - free_protoent_ptr (protoent_buf); - protoent_buf = dup_protoent_ptr (getprotobyname (p)); - if (!protoent_buf) - set_winsock_errno (); - - dump_protoent (protoent_buf); - return protoent_buf; -} - -/* exported as getprotobynumber: standards? */ -extern "C" struct protoent * -cygwin_getprotobynumber (int number) -{ - free_protoent_ptr (protoent_buf); - protoent_buf = dup_protoent_ptr (getprotobynumber (number)); - if (!protoent_buf) - set_winsock_errno (); - - dump_protoent (protoent_buf); - return protoent_buf; -} - -fhandler_socket * -fdsock (int& fd, const char *name, SOCKET soc) -{ - if (!winsock2_active) - soc = set_socket_inheritance (soc); - else if (wincap.has_set_handle_information ()) - { - /* NT systems apparently set sockets to inheritable by default */ - SetHandleInformation ((HANDLE)soc, HANDLE_FLAG_INHERIT, 0); - debug_printf ("reset socket inheritance since winsock2_active %d", winsock2_active); - } - else - debug_printf ("not setting socket inheritance since winsock2_active %d", winsock2_active); - fhandler_socket *fh = (fhandler_socket *) cygheap->fdtab.build_fhandler (fd, FH_SOCKET, name); - fh->set_io_handle ((HANDLE) soc); - fh->set_flags (O_RDWR | O_BINARY); - fh->set_r_no_interrupt (winsock2_active); - debug_printf ("fd %d, name '%s', soc %p", fd, name, soc); - return fh; -} - -/* exported as socket: standards? */ -extern "C" int -cygwin_socket (int af, int type, int protocol) -{ - int res = -1; - SOCKET soc = 0; - fhandler_socket* fh = NULL; - - cygheap_fdnew fd; - - if (fd >= 0) - { - debug_printf ("socket (%d, %d, %d)", af, type, protocol); - - soc = socket (AF_INET, type, af == AF_LOCAL ? 0 : protocol); - - if (soc == INVALID_SOCKET) - { - set_winsock_errno (); - goto done; - } - - const char *name; - if (af == AF_INET) - name = (type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp"); - else - name = (type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket"); - - fh = fdsock (fd, name, soc); - if (fh) - { - fh->set_addr_family (af); - fh->set_socket_type (type); - } - res = fd; - } - -done: - syscall_printf ("%d = socket (%d, %d, %d)", res, af, type, protocol); - return res; -} - -/* exported as sendto: standards? */ -extern "C" int -cygwin_sendto (int fd, const void *buf, int len, int flags, - const struct sockaddr *to, int tolen) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if ((len && __check_invalid_read_ptr_errno (buf, (unsigned) len)) - || (to &&__check_invalid_read_ptr_errno (to, tolen)) - || !fh) - res = -1; - else if ((res = len) != 0) - res = fh->sendto (buf, len, flags, to, tolen); - - syscall_printf ("%d = sendto (%d, %p, %d, %x, %p, %d)", - res, fd, buf, len, flags, to, tolen); - - return res; -} - -/* exported as recvfrom: standards? */ -extern "C" int -cygwin_recvfrom (int fd, void *buf, int len, int flags, - struct sockaddr *from, int *fromlen) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if ((len && __check_null_invalid_struct_errno (buf, (unsigned) len)) - || (from - && (check_null_invalid_struct_errno (fromlen) - ||__check_null_invalid_struct_errno (from, (unsigned) *fromlen))) - || !fh) - res = -1; - else if ((res = len) != 0) - res = fh->recvfrom (buf, len, flags, from, fromlen); - - syscall_printf ("%d = recvfrom (%d, %p, %d, %x, %p, %p)", - res, fd, buf, len, flags, from, fromlen); - - return res; -} - -/* exported as setsockopt: standards? */ -extern "C" int -cygwin_setsockopt (int fd, int level, int optname, const void *optval, - int optlen) -{ - int res; - fhandler_socket *fh = get (fd); - const char *name = "error"; - - /* For the following debug_printf */ - switch (optname) - { - case SO_DEBUG: - name="SO_DEBUG"; - break; - case SO_ACCEPTCONN: - name="SO_ACCEPTCONN"; - break; - case SO_REUSEADDR: - name="SO_REUSEADDR"; - break; - case SO_KEEPALIVE: - name="SO_KEEPALIVE"; - break; - case SO_DONTROUTE: - name="SO_DONTROUTE"; - break; - case SO_BROADCAST: - name="SO_BROADCAST"; - break; - case SO_USELOOPBACK: - name="SO_USELOOPBACK"; - break; - case SO_LINGER: - name="SO_LINGER"; - break; - case SO_OOBINLINE: - name="SO_OOBINLINE"; - break; - case SO_ERROR: - name="SO_ERROR"; - break; - } - - if ((optval && __check_invalid_read_ptr_errno (optval, optlen)) || !fh) - res = -1; - else - { - res = setsockopt (fh->get_socket (), level, optname, - (const char *) optval, optlen); - - if (optlen == 4) - syscall_printf ("setsockopt optval=%x", *(long *) optval); - - if (res) - set_winsock_errno (); - } - - syscall_printf ("%d = setsockopt (%d, %d, %x (%s), %p, %d)", - res, fd, level, optname, name, optval, optlen); - return res; -} - -/* exported as getsockopt: standards? */ -extern "C" int -cygwin_getsockopt (int fd, int level, int optname, void *optval, int *optlen) -{ - int res; - fhandler_socket *fh = get (fd); - const char *name = "error"; - - /* For the following debug_printf */ - switch (optname) - { - case SO_DEBUG: - name="SO_DEBUG"; - break; - case SO_ACCEPTCONN: - name="SO_ACCEPTCONN"; - break; - case SO_REUSEADDR: - name="SO_REUSEADDR"; - break; - case SO_KEEPALIVE: - name="SO_KEEPALIVE"; - break; - case SO_DONTROUTE: - name="SO_DONTROUTE"; - break; - case SO_BROADCAST: - name="SO_BROADCAST"; - break; - case SO_USELOOPBACK: - name="SO_USELOOPBACK"; - break; - case SO_LINGER: - name="SO_LINGER"; - break; - case SO_OOBINLINE: - name="SO_OOBINLINE"; - break; - case SO_ERROR: - name="SO_ERROR"; - break; - } - - if ((optval - && (check_null_invalid_struct_errno (optlen) - || __check_null_invalid_struct_errno (optval, (unsigned) *optlen))) - || !fh) - res = -1; - else - { - res = getsockopt (fh->get_socket (), level, optname, (char *) optval, - (int *) optlen); - - if (optname == SO_ERROR) - { - int *e = (int *) optval; - *e = find_winsock_errno (*e); - } - - if (res) - set_winsock_errno (); - } - - syscall_printf ("%d = getsockopt (%d, %d, %x (%s), %p, %p)", - res, fd, level, optname, name, optval, optlen); - return res; -} - -/* exported as connect: standards? */ -extern "C" int -cygwin_connect (int fd, const struct sockaddr *name, int namelen) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (__check_invalid_read_ptr_errno (name, namelen) || !fh) - res = -1; - else - res = fh->connect (name, namelen); - - syscall_printf ("%d = connect (%d, %p, %d)", res, fd, name, namelen); - - return res; -} - -static void -free_servent_ptr (struct servent *&p) -{ - if (p) - { - debug_printf ("servent: %s", p->s_name); - - if (p->s_name) - free (p->s_name); - if (p->s_proto) - free (p->s_proto); - free_char_list (p->s_aliases); - p = NULL; - } -} - -#pragma pack(push,2) -struct pservent -{ - char *s_name; - char **s_aliases; - short s_port; - char *s_proto; -}; -#pragma pack(pop) -static struct servent * -dup_servent_ptr (struct servent *src) -{ - if (!src) - return NULL; - - struct servent *dst = (struct servent *) calloc (1, sizeof *dst); - if (!dst) - return NULL; - - debug_printf ("servent: %s", src->s_name); - - dst->s_port = src->s_port; - if (src->s_name && !(dst->s_name = strdup (src->s_name))) - goto out; - if (src->s_aliases && !(dst->s_aliases = dup_char_list (src->s_aliases))) - goto out; - char *s_proto; - if (IsBadReadPtr (src->s_proto, sizeof (src->s_proto)) - && !IsBadReadPtr (((pservent *) src)->s_proto, sizeof (src->s_proto))) - s_proto = ((pservent *)src)->s_proto; - else - s_proto = src->s_proto; - - if (s_proto && !(dst->s_proto = strdup (s_proto))) - goto out; - - debug_printf ("servent: copied %s", dst->s_name); - - return dst; - -out: - free_servent_ptr (dst); - return NULL; -} - -#ifdef _MT_SAFE -#define servent_buf _reent_winsup ()->_servent_buf -#else - static struct servent *servent_buf = NULL; -#endif - -/* exported as getservbyname: standards? */ -extern "C" struct servent * -cygwin_getservbyname (const char *name, const char *proto) -{ - if (check_null_str_errno (name) - || (proto != NULL && check_null_str_errno (proto))) - return NULL; - - free_servent_ptr (servent_buf); - servent_buf = dup_servent_ptr (getservbyname (name, proto)); - if (!servent_buf) - set_winsock_errno (); - - syscall_printf ("%x = getservbyname (%s, %s)", servent_buf, name, proto); - return servent_buf; -} - -/* exported as getservbyport: standards? */ -extern "C" struct servent * -cygwin_getservbyport (int port, const char *proto) -{ - if (proto != NULL && check_null_str_errno (proto)) - return NULL; - - free_servent_ptr (servent_buf); - servent_buf = dup_servent_ptr (getservbyport (port, proto)); - if (!servent_buf) - set_winsock_errno (); - - syscall_printf ("%x = getservbyport (%d, %s)", servent_buf, port, proto); - return servent_buf; -} - -extern "C" int -cygwin_gethostname (char *name, size_t len) -{ - int PASCAL win32_gethostname (char*, int); - - if (__check_null_invalid_struct_errno (name, len)) - return -1; - - if (wsock32_handle == NULL || - win32_gethostname (name, len) == SOCKET_ERROR) - { - DWORD local_len = len; - - if (!GetComputerNameA (name, &local_len)) - { - set_winsock_errno (); - return -1; - } - } - debug_printf ("name %s\n", name); - h_errno = 0; - return 0; -} - -static void -free_hostent_ptr (struct hostent *&p) -{ - if (p) - { - debug_printf ("hostent: %s", p->h_name); - - if (p->h_name) - free ((void *)p->h_name); - free_char_list (p->h_aliases); - free_addr_list (p->h_addr_list); - p = NULL; - } -} - -static struct hostent * -dup_hostent_ptr (struct hostent *src) -{ - if (!src) - return NULL; - - struct hostent *dst = (struct hostent *) calloc (1, sizeof *dst); - if (!dst) - return NULL; - - debug_printf ("hostent: %s", src->h_name); - - dst->h_addrtype = src->h_addrtype; - dst->h_length = src->h_length; - if (src->h_name && !(dst->h_name = strdup (src->h_name))) - goto out; - if (src->h_aliases && !(dst->h_aliases = dup_char_list (src->h_aliases))) - goto out; - if (src->h_addr_list - && !(dst->h_addr_list = dup_addr_list (src->h_addr_list, src->h_length))) - goto out; - - debug_printf ("hostent: copied %s", dst->h_name); - - return dst; - -out: - free_hostent_ptr (dst); - return NULL; -} - -#ifdef _MT_SAFE -#define hostent_buf _reent_winsup ()->_hostent_buf -#else - static struct hostent *hostent_buf = NULL; -#endif - -/* exported as gethostbyname: standards? */ -extern "C" struct hostent * -cygwin_gethostbyname (const char *name) -{ - static unsigned char tmp_addr[4]; - static struct hostent tmp; - static char *tmp_aliases[1]; - static char *tmp_addr_list[2]; - static int a, b, c, d; - - if (check_null_str_errno (name)) - return NULL; - - if (sscanf (name, "%d.%d.%d.%d", &a, &b, &c, &d) == 4) - { - /* In case you don't have DNS, at least x.x.x.x still works */ - memset (&tmp, 0, sizeof (tmp)); - tmp_addr[0] = a; - tmp_addr[1] = b; - tmp_addr[2] = c; - tmp_addr[3] = d; - tmp_addr_list[0] = (char *) tmp_addr; - tmp.h_name = name; - tmp.h_aliases = tmp_aliases; - tmp.h_addrtype = 2; - tmp.h_length = 4; - tmp.h_addr_list = tmp_addr_list; - return &tmp; - } - - free_hostent_ptr (hostent_buf); - hostent_buf = dup_hostent_ptr (gethostbyname (name)); - if (!hostent_buf) - { - set_winsock_errno (); - set_host_errno (); - } - else - { - debug_printf ("h_name %s", hostent_buf->h_name); - h_errno = 0; - } - return hostent_buf; -} - -/* exported as gethostbyaddr: standards? */ -extern "C" struct hostent * -cygwin_gethostbyaddr (const char *addr, int len, int type) -{ - if (__check_invalid_read_ptr_errno (addr, len)) - return NULL; - - free_hostent_ptr (hostent_buf); - hostent_buf = dup_hostent_ptr (gethostbyaddr (addr, len, type)); - if (!hostent_buf) - { - set_winsock_errno (); - set_host_errno (); - } - else - { - debug_printf ("h_name %s", hostent_buf->h_name); - h_errno = 0; - } - return hostent_buf; -} - -/* exported as accept: standards? */ -extern "C" int -cygwin_accept (int fd, struct sockaddr *peer, int *len) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if ((peer && (check_null_invalid_struct_errno (len) - || __check_null_invalid_struct_errno (peer, (unsigned) *len))) - || !fh) - res = -1; - else - res = fh->accept (peer, len); - - syscall_printf ("%d = accept (%d, %p, %p)", res, fd, peer, len); - return res; -} - -/* exported as bind: standards? */ -extern "C" int -cygwin_bind (int fd, const struct sockaddr *my_addr, int addrlen) -{ - int res; - fhandler_socket *fh = get (fd); - - if (__check_invalid_read_ptr_errno (my_addr, addrlen) || !fh) - res = -1; - else - res = fh->bind (my_addr, addrlen); - - syscall_printf ("%d = bind (%d, %p, %d)", res, fd, my_addr, addrlen); - return res; -} - -/* exported as getsockname: standards? */ -extern "C" int -cygwin_getsockname (int fd, struct sockaddr *addr, int *namelen) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (check_null_invalid_struct_errno (namelen) - || __check_null_invalid_struct_errno (addr, (unsigned) *namelen) - || !fh) - res = -1; - else - res = fh->getsockname (addr, namelen); - - syscall_printf ("%d = getsockname (%d, %p, %p)", res, fd, addr, namelen); - return res; -} - -/* exported as listen: standards? */ -extern "C" int -cygwin_listen (int fd, int backlog) -{ - int res; - fhandler_socket *fh = get (fd); - - if (!fh) - res = -1; - else - res = fh->listen (backlog); - - syscall_printf ("%d = listen (%d, %d)", res, fd, backlog); - return res; -} - -/* exported as shutdown: standards? */ -extern "C" int -cygwin_shutdown (int fd, int how) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (!fh) - res = -1; - else - res = fh->shutdown (how); - - syscall_printf ("%d = shutdown (%d, %d)", res, fd, how); - return res; -} - -/* exported as hstrerror: BSD 4.3 */ -extern "C" const char * -cygwin_hstrerror (int err) -{ - int i; - - for (i = 0; host_errmap[i].e != 0; ++i) - if (err == host_errmap[i].e) - break; - - return host_errmap[i].s; -} - -/* exported as herror: BSD 4.3 */ -extern "C" void -cygwin_herror (const char *s) -{ - if (s && check_null_str (s)) - return; - if (cygheap->fdtab.not_open (2)) - return; - - if (s) - { - write (2, s, strlen (s)); - write (2, ": ", 2); - } - - const char *h_errstr = cygwin_hstrerror (h_errno); - - if (!h_errstr) - switch (h_errno) - { - case NETDB_INTERNAL: - h_errstr = "Resolver internal error"; - break; - case NETDB_SUCCESS: - h_errstr = "Resolver error 0 (no error)"; - break; - default: - h_errstr = "Unknown resolver error"; - break; - } - write (2, h_errstr, strlen (h_errstr)); - write (2, "\n", 1); -} - -/* exported as getpeername: standards? */ -extern "C" int -cygwin_getpeername (int fd, struct sockaddr *name, int *len) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (check_null_invalid_struct_errno (len) - || __check_null_invalid_struct_errno (name, (unsigned) *len) - || !fh) - res = -1; - else - res = fh->getpeername (name, len); - - syscall_printf ("%d = getpeername %d", res, (fh ? fh->get_socket () : -1)); - return res; -} - -/* exported as recv: standards? */ -extern "C" int -cygwin_recv (int fd, void *buf, int len, int flags) -{ - return cygwin_recvfrom (fd, buf, len, flags, NULL, NULL); -} - -/* exported as send: standards? */ -extern "C" int -cygwin_send (int fd, const void *buf, int len, int flags) -{ - return cygwin_sendto (fd, buf, len, flags, NULL, 0); -} - -/* getdomainname: standards? */ -extern "C" int -getdomainname (char *domain, size_t len) -{ - /* - * This works for Win95 only if the machine is configured to use MS-TCP. - * If a third-party TCP is being used this will fail. - * FIXME: On Win95, is there a way to portably check the TCP stack - * in use and include paths for the Domain name in each ? - * Punt for now and assume MS-TCP on Win95. - */ - if (__check_null_invalid_struct_errno (domain, len)) - return -1; - - reg_key r (HKEY_LOCAL_MACHINE, KEY_READ, - (!wincap.is_winnt ()) ? "System" : "SYSTEM", - "CurrentControlSet", "Services", - (!wincap.is_winnt ()) ? "VxD" : "Tcpip", - (!wincap.is_winnt ()) ? "MSTCP" : "Parameters", - NULL); - - /* FIXME: Are registry keys case sensitive? */ - if (r.error () || r.get_string ("Domain", domain, len, "") != ERROR_SUCCESS) - { - __seterrno (); - return -1; - } - - return 0; -} - -/* Cygwin internal */ -/* Fill out an ifconf struct. */ - -/* - * IFCONF 98/ME, NTSP4, W2K: - * Use IP Helper Library - */ -static void -get_2k_ifconf (struct ifconf *ifc, int what) -{ - int cnt = 0; - char eth[2] = "/", ppp[2] = "/", slp[2] = "/", sub[2] = "0", tok[2] = "/"; - - /* Union maps buffer to correct struct */ - struct ifreq *ifr = ifc->ifc_req; - - DWORD if_cnt, ip_cnt, lip, lnp; - DWORD siz_if_table = 0; - DWORD siz_ip_table = 0; - PMIB_IFTABLE ift; - PMIB_IPADDRTABLE ipt; - struct sockaddr_in *sa = NULL; - struct sockaddr *so = NULL; - - if (GetIfTable (NULL, &siz_if_table, TRUE) == ERROR_INSUFFICIENT_BUFFER && - GetIpAddrTable (NULL, &siz_ip_table, TRUE) == ERROR_INSUFFICIENT_BUFFER && - (ift = (PMIB_IFTABLE) alloca (siz_if_table)) && - (ipt = (PMIB_IPADDRTABLE) alloca (siz_ip_table)) && - !GetIfTable (ift, &siz_if_table, TRUE) && - !GetIpAddrTable (ipt, &siz_ip_table, TRUE)) - { - /* Iterate over all known interfaces */ - for (if_cnt = 0; if_cnt < ift->dwNumEntries; ++if_cnt) - { - *sub = '0'; - /* Iterate over all configured IP-addresses */ - for (ip_cnt = 0; ip_cnt < ipt->dwNumEntries; ++ip_cnt) - { - /* Does the IP address belong to the interface? */ - if (ipt->table[ip_cnt].dwIndex == ift->table[if_cnt].dwIndex) - { - /* Setup the interface name */ - switch (ift->table[if_cnt].dwType) - { - case MIB_IF_TYPE_TOKENRING: - ++*tok; - strcpy (ifr->ifr_name, "tok"); - strcat (ifr->ifr_name, tok); - break; - case MIB_IF_TYPE_ETHERNET: - if (*sub == '0') - ++*eth; - strcpy (ifr->ifr_name, "eth"); - strcat (ifr->ifr_name, eth); - break; - case MIB_IF_TYPE_PPP: - ++*ppp; - strcpy (ifr->ifr_name, "ppp"); - strcat (ifr->ifr_name, ppp); - break; - case MIB_IF_TYPE_SLIP: - ++*slp; - strcpy (ifr->ifr_name, "slp"); - strcat (ifr->ifr_name, slp); - break; - case MIB_IF_TYPE_LOOPBACK: - strcpy (ifr->ifr_name, "lo"); - break; - default: - continue; - } - if (*sub > '0') - { - strcat (ifr->ifr_name, ":"); - strcat (ifr->ifr_name, sub); - } - ++*sub; - /* setup sockaddr struct */ - switch (what) - { - case SIOCGIFCONF: - case SIOCGIFADDR: - sa = (struct sockaddr_in *) &ifr->ifr_addr; - sa->sin_addr.s_addr = ipt->table[ip_cnt].dwAddr; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFBRDADDR: - sa = (struct sockaddr_in *) &ifr->ifr_broadaddr; -#if 0 - /* Unfortunately, the field returns only crap. */ - sa->sin_addr.s_addr = ipt->table[ip_cnt].dwBCastAddr; -#else - lip = ipt->table[ip_cnt].dwAddr; - lnp = ipt->table[ip_cnt].dwMask; - sa->sin_addr.s_addr = lip & lnp | ~lnp; - sa->sin_family = AF_INET; - sa->sin_port = 0; -#endif - break; - case SIOCGIFNETMASK: - sa = (struct sockaddr_in *) &ifr->ifr_netmask; - sa->sin_addr.s_addr = ipt->table[ip_cnt].dwMask; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFHWADDR: - so = &ifr->ifr_hwaddr; - for (UINT i = 0; i < IFHWADDRLEN; ++i) - if (i >= ift->table[if_cnt].dwPhysAddrLen) - so->sa_data[i] = '\0'; - else - so->sa_data[i] = ift->table[if_cnt].bPhysAddr[i]; - so->sa_family = AF_INET; - break; - case SIOCGIFMETRIC: - ifr->ifr_metric = 1; - break; - case SIOCGIFMTU: - ifr->ifr_mtu = ift->table[if_cnt].dwMtu; - break; - } - ++cnt; - if ((caddr_t) ++ifr > - ifc->ifc_buf + ifc->ifc_len - sizeof (struct ifreq)) - goto done; - } - } - } - } -done: - /* Set the correct length */ - ifc->ifc_len = cnt * sizeof (struct ifreq); -} - -/* - * IFCONF Windows NT < SP4: - * Look at the Bind value in - * HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Linkage\ - * This is a REG_MULTI_SZ with strings of the form: - * \Device\<Netcard>, where netcard is the name of the net device. - * Then look under: - * HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<NetCard>\ - * Parameters\Tcpip - * at the IPAddress, Subnetmask and DefaultGateway values for the - * required values. - */ -static void -get_nt_ifconf (struct ifconf *ifc, int what) -{ - HKEY key; - unsigned long lip, lnp; - struct sockaddr_in *sa = NULL; - struct sockaddr *so = NULL; - DWORD size; - int cnt = 1; - char *binding = (char *) 0; - - /* Union maps buffer to correct struct */ - struct ifreq *ifr = ifc->ifc_req; - - if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, - "SYSTEM\\" - "CurrentControlSet\\" - "Services\\" - "Tcpip\\" - "Linkage", - 0, KEY_READ, &key) == ERROR_SUCCESS) - { - if (RegQueryValueEx (key, "Bind", - NULL, NULL, - NULL, &size) == ERROR_SUCCESS) - { - binding = (char *) alloca (size); - if (RegQueryValueEx (key, "Bind", - NULL, NULL, - (unsigned char *) binding, - &size) != ERROR_SUCCESS) - { - binding = NULL; - } - } - RegCloseKey (key); - } - - if (binding) - { - char *bp, eth[2] = "/"; - char cardkey[256], ipaddress[256], netmask[256]; - - for (bp = binding; *bp; bp += strlen (bp) + 1) - { - bp += strlen ("\\Device\\"); - strcpy (cardkey, "SYSTEM\\CurrentControlSet\\Services\\"); - strcat (cardkey, bp); - strcat (cardkey, "\\Parameters\\Tcpip"); - - if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, cardkey, - 0, KEY_READ, &key) != ERROR_SUCCESS) - continue; - - if (RegQueryValueEx (key, "IPAddress", - NULL, NULL, - (unsigned char *) ipaddress, - (size = 256, &size)) == ERROR_SUCCESS - && RegQueryValueEx (key, "SubnetMask", - NULL, NULL, - (unsigned char *) netmask, - (size = 256, &size)) == ERROR_SUCCESS) - { - char *ip, *np; - char dhcpaddress[256], dhcpnetmask[256]; - - for (ip = ipaddress, np = netmask; - *ip && *np; - ip += strlen (ip) + 1, np += strlen (np) + 1) - { - if ((caddr_t) ++ifr > ifc->ifc_buf - + ifc->ifc_len - - sizeof (struct ifreq)) - break; - - if (! strncmp (bp, "NdisWan", 7)) - { - strcpy (ifr->ifr_name, "ppp"); - strcat (ifr->ifr_name, bp + 7); - } - else - { - ++*eth; - strcpy (ifr->ifr_name, "eth"); - strcat (ifr->ifr_name, eth); - } - memset (&ifr->ifr_addr, '\0', sizeof ifr->ifr_addr); - if (cygwin_inet_addr (ip) == 0L - && RegQueryValueEx (key, "DhcpIPAddress", - NULL, NULL, - (unsigned char *) dhcpaddress, - (size = 256, &size)) - == ERROR_SUCCESS - && RegQueryValueEx (key, "DhcpSubnetMask", - NULL, NULL, - (unsigned char *) dhcpnetmask, - (size = 256, &size)) - == ERROR_SUCCESS) - { - switch (what) - { - case SIOCGIFCONF: - case SIOCGIFADDR: - sa = (struct sockaddr_in *) &ifr->ifr_addr; - sa->sin_addr.s_addr = cygwin_inet_addr (dhcpaddress); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFBRDADDR: - lip = cygwin_inet_addr (dhcpaddress); - lnp = cygwin_inet_addr (dhcpnetmask); - sa = (struct sockaddr_in *) &ifr->ifr_broadaddr; - sa->sin_addr.s_addr = lip & lnp | ~lnp; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFNETMASK: - sa = (struct sockaddr_in *) &ifr->ifr_netmask; - sa->sin_addr.s_addr = - cygwin_inet_addr (dhcpnetmask); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFHWADDR: - so = &ifr->ifr_hwaddr; - memset (so->sa_data, 0, IFHWADDRLEN); - so->sa_family = AF_INET; - break; - case SIOCGIFMETRIC: - ifr->ifr_metric = 1; - break; - case SIOCGIFMTU: - ifr->ifr_mtu = 1500; - break; - } - } - else - { - switch (what) - { - case SIOCGIFCONF: - case SIOCGIFADDR: - sa = (struct sockaddr_in *) &ifr->ifr_addr; - sa->sin_addr.s_addr = cygwin_inet_addr (ip); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFBRDADDR: - lip = cygwin_inet_addr (ip); - lnp = cygwin_inet_addr (np); - sa = (struct sockaddr_in *) &ifr->ifr_broadaddr; - sa->sin_addr.s_addr = lip & lnp | ~lnp; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFNETMASK: - sa = (struct sockaddr_in *) &ifr->ifr_netmask; - sa->sin_addr.s_addr = cygwin_inet_addr (np); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFHWADDR: - so = &ifr->ifr_hwaddr; - memset (so->sa_data, 0, IFHWADDRLEN); - so->sa_family = AF_INET; - break; - case SIOCGIFMETRIC: - ifr->ifr_metric = 1; - break; - case SIOCGIFMTU: - ifr->ifr_mtu = 1500; - break; - } - } - ++cnt; - } - } - RegCloseKey (key); - } - } - - /* Set the correct length */ - ifc->ifc_len = cnt * sizeof (struct ifreq); -} - -/* - * IFCONF Windows 95: - * HKLM/Enum/Network/MSTCP/"*" - * -> Value "Driver" enthält Subkey relativ zu - * HKLM/System/CurrentControlSet/Class/ - * -> In Subkey "Bindings" die Values aufzählen - * -> Enthält Subkeys der Form "VREDIR\*" - * Das * ist ein Subkey relativ zu - * HKLM/System/CurrentControlSet/Class/Net/ - * HKLM/System/CurrentControlSet/Class/"Driver" - * -> Value "IPAddress" - * -> Value "IPMask" - * HKLM/System/CurrentControlSet/Class/Net/"*"(aus "VREDIR\*") - * -> Wenn Value "AdapterName" == "MS$PPP" -> ppp interface - * -> Value "DriverDesc" enthält den Namen - * - */ -static void -get_95_ifconf (struct ifconf *ifc, int what) -{ - HKEY key; - unsigned long lip, lnp; - struct sockaddr_in *sa = NULL; - struct sockaddr *so = NULL; - FILETIME update; - LONG res; - DWORD size; - int cnt = 1; - char ifname[256]; - char eth[2] = "/"; - char ppp[2] = "/"; - - /* Union maps buffer to correct struct */ - struct ifreq *ifr = ifc->ifc_req; - - if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, "Enum\\Network\\MSTCP", - 0, KEY_READ, &key) != ERROR_SUCCESS) - { - /* Set the correct length */ - ifc->ifc_len = cnt * sizeof (struct ifreq); - return; - } - - for (int i = 0; - (res = RegEnumKeyEx (key, i, ifname, - (size = sizeof ifname, &size), - 0, 0, 0, &update)) != ERROR_NO_MORE_ITEMS; - ++i) - { - HKEY ifkey, subkey; - char driver[256], classname[256], netname[256]; - char adapter[256], ip[256], np[256]; - - if (res != ERROR_SUCCESS - || RegOpenKeyEx (key, ifname, 0, - KEY_READ, &ifkey) != ERROR_SUCCESS) - continue; - - if (RegQueryValueEx (ifkey, "Driver", 0, - NULL, (unsigned char *) driver, - (size = sizeof driver, &size)) != ERROR_SUCCESS) - { - RegCloseKey (ifkey); - continue; - } - - strcpy (classname, "System\\CurrentControlSet\\Services\\Class\\"); - strcat (classname, driver); - if ((res = RegOpenKeyEx (HKEY_LOCAL_MACHINE, classname, - 0, KEY_READ, &subkey)) != ERROR_SUCCESS) - { - RegCloseKey (ifkey); - continue; - } - - if (RegQueryValueEx (subkey, "IPAddress", 0, - NULL, (unsigned char *) ip, - (size = sizeof ip, &size)) == ERROR_SUCCESS - && RegQueryValueEx (subkey, "IPMask", 0, - NULL, (unsigned char *) np, - (size = sizeof np, &size)) == ERROR_SUCCESS) - { - if ((caddr_t)++ifr > ifc->ifc_buf - + ifc->ifc_len - - sizeof (struct ifreq)) - goto out; - - switch (what) - { - case SIOCGIFCONF: - case SIOCGIFADDR: - sa = (struct sockaddr_in *) &ifr->ifr_addr; - sa->sin_addr.s_addr = cygwin_inet_addr (ip); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFBRDADDR: - lip = cygwin_inet_addr (ip); - lnp = cygwin_inet_addr (np); - sa = (struct sockaddr_in *) &ifr->ifr_broadaddr; - sa->sin_addr.s_addr = lip & lnp | ~lnp; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFNETMASK: - sa = (struct sockaddr_in *) &ifr->ifr_netmask; - sa->sin_addr.s_addr = cygwin_inet_addr (np); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFHWADDR: - so = &ifr->ifr_hwaddr; - memset (so->sa_data, 0, IFHWADDRLEN); - so->sa_family = AF_INET; - break; - case SIOCGIFMETRIC: - ifr->ifr_metric = 1; - break; - case SIOCGIFMTU: - ifr->ifr_mtu = 1500; - break; - } - } - - RegCloseKey (subkey); - - strcpy (netname, "System\\CurrentControlSet\\Services\\Class\\Net\\"); - strcat (netname, ifname); - - if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, netname, - 0, KEY_READ, &subkey) != ERROR_SUCCESS) - { - RegCloseKey (ifkey); - --ifr; - continue; - } - - if (RegQueryValueEx (subkey, "AdapterName", 0, - NULL, (unsigned char *) adapter, - (size = sizeof adapter, &size)) == ERROR_SUCCESS - && strcasematch (adapter, "MS$PPP")) - { - ++*ppp; - strcpy (ifr->ifr_name, "ppp"); - strcat (ifr->ifr_name, ppp); - } - else - { - ++*eth; - strcpy (ifr->ifr_name, "eth"); - strcat (ifr->ifr_name, eth); - } - - RegCloseKey (subkey); - RegCloseKey (ifkey); - - ++cnt; - } - -out: - - RegCloseKey (key); - - /* Set the correct length */ - ifc->ifc_len = cnt * sizeof (struct ifreq); -} - -int -get_ifconf (struct ifconf *ifc, int what) -{ - unsigned long lip, lnp; - struct sockaddr_in *sa; - - if (check_null_invalid_struct_errno (ifc)) - return -1; - - /* Union maps buffer to correct struct */ - struct ifreq *ifr = ifc->ifc_req; - - /* Ensure we have space for two struct ifreqs, fail if not. */ - if (ifc->ifc_len < (int) (2 * sizeof (struct ifreq))) - { - set_errno (EFAULT); - return -1; - } - - /* Set up interface lo0 first */ - strcpy (ifr->ifr_name, "lo"); - memset (&ifr->ifr_addr, '\0', sizeof (ifr->ifr_addr)); - switch (what) - { - case SIOCGIFCONF: - case SIOCGIFADDR: - sa = (struct sockaddr_in *) &ifr->ifr_addr; - sa->sin_addr.s_addr = htonl (INADDR_LOOPBACK); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFBRDADDR: - lip = htonl (INADDR_LOOPBACK); - lnp = cygwin_inet_addr ("255.0.0.0"); - sa = (struct sockaddr_in *) &ifr->ifr_broadaddr; - sa->sin_addr.s_addr = lip & lnp | ~lnp; - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFNETMASK: - sa = (struct sockaddr_in *) &ifr->ifr_netmask; - sa->sin_addr.s_addr = cygwin_inet_addr ("255.0.0.0"); - sa->sin_family = AF_INET; - sa->sin_port = 0; - break; - case SIOCGIFHWADDR: - ifr->ifr_hwaddr.sa_family = AF_INET; - memset (ifr->ifr_hwaddr.sa_data, 0, IFHWADDRLEN); - break; - case SIOCGIFMETRIC: - ifr->ifr_metric = 1; - break; - case SIOCGIFMTU: - /* This funny value is returned by `ifconfig lo' on Linux 2.2 kernel. */ - ifr->ifr_mtu = 3924; - break; - default: - set_errno (EINVAL); - return -1; - } - - OSVERSIONINFO os_version_info; - memset (&os_version_info, 0, sizeof os_version_info); - os_version_info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO); - GetVersionEx (&os_version_info); - if (wincap.has_ip_helper_lib ()) - get_2k_ifconf (ifc, what); - else if (wincap.is_winnt ()) - get_nt_ifconf (ifc, what); - else - get_95_ifconf (ifc, what); - return 0; -} - -/* exported as rcmd: standards? */ -extern "C" int -cygwin_rcmd (char **ahost, unsigned short inport, char *locuser, - char *remuser, char *cmd, int *fd2p) -{ - int res = -1; - SOCKET fd2s; - sigframe thisframe (mainthread); - - if (check_null_invalid_struct_errno (ahost) || - check_null_empty_str_errno (*ahost) || - (locuser && check_null_empty_str_errno (locuser)) || - (remuser && check_null_str_errno (remuser))) - return (int) INVALID_SOCKET; - - cygheap_fdnew res_fd; - if (res_fd < 0) - goto done; - - if (fd2p) - { - cygheap_fdnew newfd (res_fd, false); - if (*fd2p < 0) - goto done; - *fd2p = newfd; - } - - res = rcmd (ahost, inport, locuser, remuser, cmd, fd2p ? &fd2s : NULL); - if (res == (int) INVALID_SOCKET) - goto done; - else - { - fdsock (res_fd, "/dev/tcp", res); - res = res_fd; - } - - if (fd2p) - fdsock (*fd2p, "/dev/tcp", fd2s); - -done: - syscall_printf ("%d = rcmd (...)", res); - return res; -} - -/* exported as rresvport: standards? */ -extern "C" int -cygwin_rresvport (int *port) -{ - int res; - sigframe thisframe (mainthread); - - if (check_null_invalid_struct_errno (port)) - return -1; - - cygheap_fdnew res_fd; - if (res_fd < 0) - res = -1; - else - { - res = rresvport (port); - - if (res != (int) INVALID_SOCKET) - { - fdsock (res_fd, "/dev/tcp", res); - res = res_fd; - } - } - - syscall_printf ("%d = rresvport (%d)", res, port ? *port : 0); - return res; -} - -/* exported as rexec: standards? */ -extern "C" int -cygwin_rexec (char **ahost, unsigned short inport, char *locuser, - char *password, char *cmd, int *fd2p) -{ - int res = -1; - SOCKET fd2s; - sigframe thisframe (mainthread); - - if (check_null_invalid_struct_errno (ahost) || - check_null_empty_str_errno (*ahost) || - (locuser && check_null_empty_str_errno (locuser)) || - (password && check_null_str_errno (password))) - return (int) INVALID_SOCKET; - - cygheap_fdnew res_fd; - if (res_fd < 0) - goto done; - if (fd2p) - { - cygheap_fdnew newfd (res_fd); - if (newfd < 0) - goto done; - *fd2p = newfd; - } - res = rexec (ahost, inport, locuser, password, cmd, fd2p ? &fd2s : NULL); - if (res == (int) INVALID_SOCKET) - goto done; - else - { - fdsock (res_fd, "/dev/tcp", res); - res = res_fd; - } - if (fd2p) - fdsock (*fd2p, "/dev/tcp", fd2s); - -done: - syscall_printf ("%d = rexec (...)", res); - return res; -} - -/* socketpair: standards? */ -/* Win32 supports AF_INET only, so ignore domain and protocol arguments */ -extern "C" int -socketpair (int family, int type, int protocol, int *sb) -{ - int res = -1; - SOCKET insock, outsock, newsock; - struct sockaddr_in sock_in, sock_out; - int len; - cygheap_fdnew sb0; - fhandler_socket *fh; - - if (__check_null_invalid_struct_errno (sb, 2 * sizeof (int))) - return -1; - - if (family != AF_LOCAL && family != AF_INET) - { - set_errno (EAFNOSUPPORT); - goto done; - } - if (type != SOCK_STREAM && type != SOCK_DGRAM) - { - set_errno (EPROTOTYPE); - goto done; - } - if ((family == AF_LOCAL && protocol != PF_UNSPEC && protocol != PF_LOCAL) - || (family == AF_INET && protocol != PF_UNSPEC && protocol != PF_INET)) - { - set_errno (EPROTONOSUPPORT); - goto done; - } - - if (sb0 < 0) - goto done; - else - { - sb[0] = sb0; - cygheap_fdnew sb1 (sb0, false); - if (sb1 < 0) - goto done; - - sb[1] = sb1; - } - - /* create the first socket */ - newsock = socket (AF_INET, type, 0); - if (newsock == INVALID_SOCKET) - { - debug_printf ("first socket call failed"); - set_winsock_errno (); - goto done; - } - - /* bind the socket to any unused port */ - sock_in.sin_family = AF_INET; - sock_in.sin_port = 0; - sock_in.sin_addr.s_addr = INADDR_ANY; - if (bind (newsock, (struct sockaddr *) &sock_in, sizeof (sock_in)) < 0) - { - debug_printf ("bind failed"); - set_winsock_errno (); - closesocket (newsock); - goto done; - } - len = sizeof (sock_in); - if (getsockname (newsock, (struct sockaddr *) &sock_in, &len) < 0) - { - debug_printf ("getsockname error"); - set_winsock_errno (); - closesocket (newsock); - goto done; - } - - /* For stream sockets, create a listener */ - if (type == SOCK_STREAM) - listen (newsock, 2); - - /* create a connecting socket */ - outsock = socket (AF_INET, type, 0); - if (outsock == INVALID_SOCKET) - { - debug_printf ("second socket call failed"); - set_winsock_errno (); - closesocket (newsock); - goto done; - } - - /* For datagram sockets, bind the 2nd socket to an unused address, too */ - if (type == SOCK_DGRAM) - { - sock_out.sin_family = AF_INET; - sock_out.sin_port = 0; - sock_out.sin_addr.s_addr = INADDR_ANY; - if (bind (outsock, (struct sockaddr *) &sock_out, sizeof (sock_out)) < 0) - { - debug_printf ("bind failed"); - set_winsock_errno (); - closesocket (newsock); - closesocket (outsock); - goto done; - } - len = sizeof (sock_out); - if (getsockname (outsock, (struct sockaddr *) &sock_out, &len) < 0) - { - debug_printf ("getsockname error"); - set_winsock_errno (); - closesocket (newsock); - closesocket (outsock); - goto done; - } - } - - /* Force IP address to loopback */ - sock_in.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - if (type == SOCK_DGRAM) - sock_out.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - - /* Do a connect */ - if (connect (outsock, (struct sockaddr *) &sock_in, - sizeof (sock_in)) < 0) - { - debug_printf ("connect error"); - set_winsock_errno (); - closesocket (newsock); - closesocket (outsock); - goto done; - } - - if (type == SOCK_STREAM) - { - /* For stream sockets, accept the connection and close the listener */ - len = sizeof (sock_in); - insock = accept (newsock, (struct sockaddr *) &sock_in, &len); - if (insock == INVALID_SOCKET) - { - debug_printf ("accept error"); - set_winsock_errno (); - closesocket (newsock); - closesocket (outsock); - goto done; - } - closesocket (newsock); - } - else - { - /* For datagram sockets, connect the 2nd socket */ - if (connect (newsock, (struct sockaddr *) &sock_out, - sizeof (sock_out)) < 0) - { - debug_printf ("connect error"); - set_winsock_errno (); - closesocket (newsock); - closesocket (outsock); - goto done; - } - insock = newsock; - } - - res = 0; - - if (family == AF_LOCAL) - { - - fh = fdsock (sb[0], - type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket", - insock); - fh->set_sun_path (""); - fh->set_addr_family (AF_LOCAL); - fh->set_socket_type (type); - fh = fdsock (sb[1], - type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket", - outsock); - fh->set_sun_path (""); - fh->set_addr_family (AF_LOCAL); - fh->set_socket_type (type); - } - else - { - fh = fdsock (sb[0], type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp", - insock); - fh->set_addr_family (AF_INET); - fh->set_socket_type (type); - fh = fdsock (sb[1], type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp", - outsock); - fh->set_addr_family (AF_INET); - fh->set_socket_type (type); - } - -done: - syscall_printf ("%d = socketpair (...)", res); - return res; -} - -/* sethostent: standards? */ -extern "C" void -sethostent (int) -{ -} - -/* endhostent: standards? */ -extern "C" void -endhostent (void) -{ -} - -/* exported as recvmsg: standards? */ -extern "C" int -cygwin_recvmsg (int fd, struct msghdr *msg, int flags) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (check_null_invalid_struct_errno (msg) - || (msg->msg_name - && __check_null_invalid_struct_errno (msg->msg_name, - (unsigned) msg->msg_namelen)) - || !fh) - res = -1; - else - { - res = check_iovec_for_read (msg->msg_iov, msg->msg_iovlen); - if (res > 0) - res = fh->recvmsg (msg, flags, res); // res == iovec tot - } - - syscall_printf ("%d = recvmsg (%d, %p, %x)", res, fd, msg, flags); - return res; -} - -/* exported as sendmsg: standards? */ -extern "C" int -cygwin_sendmsg (int fd, const struct msghdr *msg, int flags) -{ - int res; - sigframe thisframe (mainthread); - - fhandler_socket *fh = get (fd); - - if (__check_invalid_read_ptr_errno (msg, sizeof msg) - || (msg->msg_name - && __check_invalid_read_ptr_errno (msg->msg_name, - (unsigned) msg->msg_namelen)) - || !fh) - res = -1; - else - { - res = check_iovec_for_write (msg->msg_iov, msg->msg_iovlen); - if (res > 0) - res = fh->sendmsg (msg, flags, res); // res == iovec tot - } - - syscall_printf ("%d = sendmsg (%d, %p, %x)", res, fd, msg, flags); - return res; -} |