diff options
Diffstat (limited to 'winsup/cygwin')
-rw-r--r-- | winsup/cygwin/ChangeLog | 40 | ||||
-rw-r--r-- | winsup/cygwin/fhandler.h | 15 | ||||
-rw-r--r-- | winsup/cygwin/fhandler_socket.cc | 530 | ||||
-rw-r--r-- | winsup/cygwin/net.cc | 556 |
4 files changed, 653 insertions, 488 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 33b377d92..47ddb265c 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,5 +1,45 @@ 2002-06-26 Corinna Vinschen <corinna@vinschen.de> + * fhandler.h (fhandler_socket::bind): Add method definition. + (fhandler_socket::connect): Ditto. + (fhandler_socket::listen): Ditto. + (fhandler_socket::accept): Ditto. + (fhandler_socket::getsockname): Ditto. + (fhandler_socket::getpeername): Ditto. + (fhandler_socket::recvfrom): Ditto. + (fhandler_socket::recvmsg): Ditto. + (fhandler_socket::sendto): Ditto. + (fhandler_socket::sendmsg): Ditto. + (fhandler_socket::shutdown): Ditto. + * fhandler_socket.cc (get_inet_addr): Move here from net.cc. + (fhandler_socket::bind): New method. + (fhandler_socket::connect): Ditto. + (fhandler_socket::listen): Ditto. + (fhandler_socket::accept): Ditto. + (fhandler_socket::getsockname): Ditto. + (fhandler_socket::getpeername): Ditto. + (fhandler_socket::recvfrom): Ditto. + (fhandler_socket::recvmsg): Ditto. + (fhandler_socket::sendto): Ditto. + (fhandler_socket::sendmsg): Ditto. + (fhandler_socket::shutdown): Ditto. + * net.cc: Various formatting cleanups throughout. + (get_inet_addr): Move to fhandler_socket.cc. + (cygwin_bind): Move base functionality to appropriate fhandler_socket + method. + (cygwin_connect): Ditto. + (cygwin_listen): Ditto. + (cygwin_accept): Ditto. + (cygwin_getsockname): Ditto. + (cygwin_getpeername): Ditto. + (cygwin_recvfrom): Ditto. + (cygwin_recvmsg): Ditto. + (cygwin_sendto): Ditto. + (cygwin_sendmsg): Ditto. + (cygwin_shutdown): Ditto. + +2002-06-26 Corinna Vinschen <corinna@vinschen.de> + * pwdgrp.h (pwdgrp_read::~pwdgrp_read): Avoid compiler warning. 2002-06-26 Christopher Faylor <cgf@redhat.com> diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h index 08bb273a4..e0521d4ef 100644 --- a/winsup/cygwin/fhandler.h +++ b/winsup/cygwin/fhandler.h @@ -380,15 +380,30 @@ class fhandler_socket: public fhandler_base void set_shutdown_read () {FHSETF (SHUTRD);} void set_shutdown_write () {FHSETF (SHUTWR);} + int bind (const struct sockaddr *name, int namelen); + int connect (const struct sockaddr *name, int namelen); + int listen (int backlog); + int accept (struct sockaddr *peer, int *len); + int getsockname (struct sockaddr *name, int *namelen); + int getpeername (struct sockaddr *name, int *namelen); + int recv (void *ptr, size_t len, unsigned int flags); int __stdcall read (void *ptr, size_t len) __attribute__ ((regparm (3))); + int recvfrom (void *ptr, size_t len, unsigned int flags, + struct sockaddr *from, int *fromlen); + int recvmsg (struct msghdr *msg, int flags); int send (const void *ptr, size_t len, unsigned int flags); int write (const void *ptr, size_t len); + int sendto (const void *ptr, size_t len, unsigned int flags, + const struct sockaddr *to, int tolen); + int sendmsg (const struct msghdr *msg, int flags); + int ioctl (unsigned int cmd, void *); int fcntl (int cmd, void *); __off64_t lseek (__off64_t, int) { return 0; } + int shutdown (int how); int close (); void hclose (HANDLE) {close ();} int dup (fhandler_base *child); diff --git a/winsup/cygwin/fhandler_socket.cc b/winsup/cygwin/fhandler_socket.cc index 6a6e0eeba..24e68566e 100644 --- a/winsup/cygwin/fhandler_socket.cc +++ b/winsup/cygwin/fhandler_socket.cc @@ -15,6 +15,8 @@ #include "winsup.h" #include <errno.h> #include <sys/socket.h> +#include <sys/un.h> +#include <sys/uio.h> #include <asm/byteorder.h> #include <stdlib.h> @@ -36,8 +38,59 @@ #define ENTROPY_SOURCE_NAME "/dev/urandom" #define ENTROPY_SOURCE_DEV_UNIT 9 +extern fhandler_socket *fdsock (int& fd, const char *name, SOCKET soc); +extern "C" { +int sscanf (const char *, const char *, ...); +} /* End of "C" section */ + fhandler_dev_random* entropy_source; +/* cygwin internal: map sockaddr into internet domain address */ +static int +get_inet_addr (const struct sockaddr *in, int inlen, + struct sockaddr_in *out, int *outlen, int* secret = 0) +{ + int secret_buf [4]; + int* secret_ptr = (secret ? : secret_buf); + + if (in->sa_family == AF_INET) + { + *out = * (sockaddr_in *)in; + *outlen = inlen; + return 1; + } + else if (in->sa_family == AF_LOCAL) + { + int fd = _open (in->sa_data, O_RDONLY); + if (fd == -1) + return 0; + + int ret = 0; + char buf[128]; + memset (buf, 0, sizeof buf); + if (read (fd, buf, sizeof buf) != -1) + { + sockaddr_in sin; + sin.sin_family = AF_INET; + sscanf (buf + strlen (SOCKET_COOKIE), "%hu %08x-%08x-%08x-%08x", + &sin.sin_port, + secret_ptr, secret_ptr + 1, secret_ptr + 2, secret_ptr + 3); + sin.sin_port = htons (sin.sin_port); + sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); + *out = sin; + *outlen = sizeof sin; + ret = 1; + } + _close (fd); + return ret; + } + else + { + set_errno (EAFNOSUPPORT); + return 0; + } +} + /**********************************************************************/ /* fhandler_socket */ @@ -93,7 +146,7 @@ fhandler_socket::create_secret_event (int* secret) struct sockaddr_in sin; int sin_len = sizeof (sin); - if (getsockname (get_socket (), (struct sockaddr*) &sin, &sin_len)) + if (::getsockname (get_socket (), (struct sockaddr*) &sin, &sin_len)) { debug_printf ("error getting local socket name (%d)", WSAGetLastError ()); return NULL; @@ -257,6 +310,293 @@ fhandler_socket::fstat (struct __stat64 *buf, path_conv *pc) } int +fhandler_socket::bind (const struct sockaddr *name, int namelen) +{ + int res = -1; + + if (name->sa_family == AF_LOCAL) + { +#define un_addr ((struct sockaddr_un *) name) + struct sockaddr_in sin; + int len = sizeof sin; + int fd; + + if (strlen (un_addr->sun_path) >= UNIX_PATH_LEN) + { + set_errno (ENAMETOOLONG); + goto out; + } + sin.sin_family = AF_INET; + sin.sin_port = 0; + sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); + if (::bind (get_socket (), (sockaddr *) &sin, len)) + { + syscall_printf ("AF_LOCAL: bind failed %d", get_errno ()); + set_winsock_errno (); + goto out; + } + if (::getsockname (get_socket (), (sockaddr *) &sin, &len)) + { + syscall_printf ("AF_LOCAL: getsockname failed %d", get_errno ()); + set_winsock_errno (); + goto out; + } + + sin.sin_port = ntohs (sin.sin_port); + debug_printf ("AF_LOCAL: socket bound to port %u", sin.sin_port); + + /* bind must fail if file system socket object already exists + so _open () is called with O_EXCL flag. */ + fd = _open (un_addr->sun_path, + O_WRONLY | O_CREAT | O_EXCL | O_BINARY, + 0); + if (fd < 0) + { + if (get_errno () == EEXIST) + set_errno (EADDRINUSE); + goto out; + } + + set_connect_secret (); + + char buf[sizeof (SOCKET_COOKIE) + 80]; + __small_sprintf (buf, "%s%u ", SOCKET_COOKIE, sin.sin_port); + get_connect_secret (strchr (buf, '\0')); + len = strlen (buf) + 1; + + /* Note that the terminating nul is written. */ + if (_write (fd, buf, len) != len) + { + save_errno here; + _close (fd); + _unlink (un_addr->sun_path); + } + else + { + _close (fd); + chmod (un_addr->sun_path, + (S_IFSOCK | S_IRWXU | S_IRWXG | S_IRWXO) & ~cygheap->umask); + set_sun_path (un_addr->sun_path); + res = 0; + } +#undef un_addr + } + else if (::bind (get_socket (), name, namelen)) + set_winsock_errno (); + else + res = 0; + +out: + return res; +} + +int +fhandler_socket::connect (const struct sockaddr *name, int namelen) +{ + int res = -1; + BOOL secret_check_failed = FALSE; + BOOL in_progress = FALSE; + sockaddr_in sin; + int secret [4]; + + sigframe thisframe (mainthread); + + if (!get_inet_addr (name, namelen, &sin, &namelen, secret)) + return -1; + + res = ::connect (get_socket (), (sockaddr *) &sin, namelen); + if (res) + { + /* Special handling for connect to return the correct error code + when called on a non-blocking socket. */ + if (is_nonblocking ()) + { + DWORD err = WSAGetLastError (); + if (err == WSAEWOULDBLOCK || err == WSAEALREADY) + { + WSASetLastError (WSAEINPROGRESS); + in_progress = TRUE; + } + else if (err == WSAEINVAL) + WSASetLastError (WSAEISCONN); + } + set_winsock_errno (); + } + if (get_addr_family () == AF_LOCAL && get_socket_type () == SOCK_STREAM) + { + if (!res || in_progress) + { + if (!create_secret_event (secret)) + { + secret_check_failed = TRUE; + } + else if (in_progress) + signal_secret_event (); + } + + if (!secret_check_failed && !res) + { + if (!check_peer_secret_event (&sin, secret)) + { + debug_printf ( "accept from unauthorized server" ); + secret_check_failed = TRUE; + } + } + + if (secret_check_failed) + { + close_secret_event (); + if (res) + closesocket (res); + set_errno (ECONNREFUSED); + res = -1; + } + } + + return res; +} + +int +fhandler_socket::listen (int backlog) +{ + int res = ::listen (get_socket (), backlog); + if (res) + set_winsock_errno (); + return res; +} + +int +fhandler_socket::accept (struct sockaddr *peer, int *len) +{ + int res = -1; + BOOL secret_check_failed = FALSE; + BOOL in_progress = FALSE; + + sigframe thisframe (mainthread); + + /* Allows NULL peer and len parameters. */ + struct sockaddr_in peer_dummy; + int len_dummy; + if (!peer) + peer = (struct sockaddr *) &peer_dummy; + if (!len) + { + len_dummy = sizeof (struct sockaddr_in); + len = &len_dummy; + } + + /* accept on NT fails if len < sizeof (sockaddr_in) + * some programs set len to + * sizeof (name.sun_family) + strlen (name.sun_path) for UNIX domain + */ + if (len && ((unsigned) *len < sizeof (struct sockaddr_in))) + *len = sizeof (struct sockaddr_in); + + res = ::accept (get_socket (), peer, len); // can't use a blocking call inside a lock + + if ((SOCKET) res == (SOCKET) INVALID_SOCKET && + WSAGetLastError () == WSAEWOULDBLOCK) + in_progress = TRUE; + + if (get_addr_family () == AF_LOCAL && get_socket_type () == SOCK_STREAM) + { + if ((SOCKET) res != (SOCKET) INVALID_SOCKET || in_progress) + { + if (!create_secret_event ()) + secret_check_failed = TRUE; + else if (in_progress) + signal_secret_event (); + } + + if (!secret_check_failed && + (SOCKET) res != (SOCKET) INVALID_SOCKET) + { + if (!check_peer_secret_event ((struct sockaddr_in*) peer)) + { + debug_printf ("connect from unauthorized client"); + secret_check_failed = TRUE; + } + } + + if (secret_check_failed) + { + close_secret_event (); + if ((SOCKET) res != (SOCKET) INVALID_SOCKET) + closesocket (res); + set_errno (ECONNABORTED); + res = -1; + return res; + } + } + + cygheap_fdnew res_fd; + if (res_fd < 0) + /* FIXME: what is correct errno? */; + else if ((SOCKET) res == (SOCKET) INVALID_SOCKET) + set_winsock_errno (); + else + { + fhandler_socket* res_fh = fdsock (res_fd, get_name (), res); + if (get_addr_family () == AF_LOCAL) + res_fh->set_sun_path (get_sun_path ()); + res_fh->set_addr_family (get_addr_family ()); + res_fh->set_socket_type (get_socket_type ()); + res = res_fd; + } + + return res; +} + +int +fhandler_socket::getsockname (struct sockaddr *name, int *namelen) +{ + int res = -1; + + sigframe thisframe (mainthread); + + if (get_addr_family () == AF_LOCAL) + { + struct sockaddr_un *sun = (struct sockaddr_un *) name; + memset (sun, 0, *namelen); + sun->sun_family = AF_LOCAL; + + if (!get_sun_path ()) + sun->sun_path[0] = '\0'; + else + /* According to SUSv2 "If the actual length of the address is + greater than the length of the supplied sockaddr structure, the + stored address will be truncated." We play it save here so + that the path always has a trailing 0 even if it's truncated. */ + strncpy (sun->sun_path, get_sun_path (), + *namelen - sizeof *sun + sizeof sun->sun_path - 1); + + *namelen = sizeof *sun - sizeof sun->sun_path + + strlen (sun->sun_path) + 1; + res = 0; + } + else + { + res = ::getsockname (get_socket (), name, namelen); + if (res) + set_winsock_errno (); + } + + return res; +} + +int +fhandler_socket::getpeername (struct sockaddr *name, int *namelen) +{ + sigframe thisframe (mainthread); + + int res = ::getpeername (get_socket (), name, namelen); + if (res) + set_winsock_errno (); + + return res; +} + +int fhandler_socket::recv (void *ptr, size_t len, unsigned int flags) { int res = -1; @@ -264,6 +604,7 @@ fhandler_socket::recv (void *ptr, size_t len, unsigned int flags) LPWSAOVERLAPPED ovr; sigframe thisframe (mainthread); + if (is_nonblocking () || !(ovr = wsock_evt.prepare ())) { debug_printf ("Fallback to winsock 1 recv call"); @@ -299,6 +640,88 @@ fhandler_socket::read (void *ptr, size_t len) } int +fhandler_socket::recvfrom (void *ptr, size_t len, unsigned int flags, + struct sockaddr *from, int *fromlen) +{ + int res = -1; + wsock_event wsock_evt; + LPWSAOVERLAPPED ovr; + + sigframe thisframe (mainthread); + + if (is_nonblocking () || !(ovr = wsock_evt.prepare ())) + { + debug_printf ("Fallback to winsock 1 recvfrom call"); + if ((res = ::recvfrom (get_socket (), (char *) ptr, len, flags, from, + fromlen)) + == SOCKET_ERROR) + { + set_winsock_errno (); + res = -1; + } + } + else + { + WSABUF wsabuf = { len, (char *) ptr }; + DWORD ret = 0; + if (WSARecvFrom (get_socket (), &wsabuf, 1, &ret, (DWORD *)&flags, + from, fromlen, ovr, NULL) != SOCKET_ERROR) + res = ret; + else if ((res = WSAGetLastError ()) != WSA_IO_PENDING) + { + set_winsock_errno (); + res = -1; + } + else if ((res = wsock_evt.wait (get_socket (), (DWORD *)&flags)) == -1) + set_winsock_errno (); + } + + return res; +} + +int +fhandler_socket::recvmsg (struct msghdr *msg, int flags) +{ + int res = -1; + int nb; + size_t tot = 0; + char *buf, *p; + struct iovec *iov = msg->msg_iov; + + sigframe thisframe (mainthread); + + if (get_addr_family () == AF_LOCAL) + { + /* On AF_LOCAL sockets the (fixed-size) name of the shared memory + area used for descriptor passing is transmitted first. + If this string is empty, no descriptors are passed and we can + go ahead recv'ing the normal data blocks. Otherwise start + special handling for descriptor passing. */ + /*TODO*/ + } + for (int i = 0; i < msg->msg_iovlen; ++i) + tot += iov[i].iov_len; + buf = (char *) alloca (tot); + if (tot != 0 && buf == NULL) + { + set_errno (ENOMEM); + return -1; + } + nb = res = recvfrom (buf, tot, flags, (struct sockaddr *) msg->msg_name, + (int *) &msg->msg_namelen); + p = buf; + while (nb > 0) + { + ssize_t cnt = min(nb, iov->iov_len); + memcpy (iov->iov_base, p, cnt); + p += cnt; + nb -= cnt; + ++iov; + } + return res; +} + +int fhandler_socket::send (const void *ptr, size_t len, unsigned int flags) { int res = -1; @@ -306,6 +729,7 @@ fhandler_socket::send (const void *ptr, size_t len, unsigned int flags) LPWSAOVERLAPPED ovr; sigframe thisframe (mainthread); + if (is_nonblocking () || !(ovr = wsock_evt.prepare ())) { debug_printf ("Fallback to winsock 1 send call"); @@ -340,11 +764,111 @@ fhandler_socket::write (const void *ptr, size_t len) return send (ptr, len, 0); } -/* Cygwin internal */ +int +fhandler_socket::sendto (const void *ptr, size_t len, unsigned int flags, + const struct sockaddr *to, int tolen) +{ + int res = -1; + wsock_event wsock_evt; + LPWSAOVERLAPPED ovr; + sockaddr_in sin; + + sigframe thisframe (mainthread); + + if (!get_inet_addr (to, tolen, &sin, &tolen)) + return -1; + + if (is_nonblocking () || !(ovr = wsock_evt.prepare ())) + { + debug_printf ("Fallback to winsock 1 sendto call"); + if ((res = ::sendto (get_socket (), (const char *) ptr, len, flags, + (sockaddr *) &sin, tolen)) == SOCKET_ERROR) + { + set_winsock_errno (); + res = -1; + } + } + else + { + WSABUF wsabuf = { len, (char *) ptr }; + DWORD ret = 0; + if (WSASendTo (get_socket (), &wsabuf, 1, &ret, (DWORD)flags, + (sockaddr *) &sin, tolen, ovr, NULL) != SOCKET_ERROR) + res = ret; + else if ((res = WSAGetLastError ()) != WSA_IO_PENDING) + { + set_winsock_errno (); + res = -1; + } + else if ((res = wsock_evt.wait (get_socket (), (DWORD *)&flags)) == -1) + set_winsock_errno (); + } + + return res; +} + +int +fhandler_socket::sendmsg (const struct msghdr *msg, int flags) +{ + size_t tot = 0; + char *buf, *p; + struct iovec *iov = msg->msg_iov; + + if (get_addr_family () == AF_LOCAL) + { + /* For AF_LOCAL/AF_UNIX sockets, if descriptors are given, start + the special handling for descriptor passing. Otherwise just + transmit an empty string to tell the receiver that no + descriptor passing is done. */ + /*TODO*/ + } + for(int i = 0; i < msg->msg_iovlen; ++i) + tot += iov[i].iov_len; + buf = (char *) alloca (tot); + if (tot != 0 && buf == NULL) + { + set_errno (ENOMEM); + return -1; + } + p = buf; + for (int i = 0; i < msg->msg_iovlen; ++i) + { + memcpy (p, iov[i].iov_base, iov[i].iov_len); + p += iov[i].iov_len; + } + return sendto (buf, tot, flags, (struct sockaddr *) msg->msg_name, + msg->msg_namelen); +} + +int +fhandler_socket::shutdown (int how) +{ + int res = ::shutdown (get_socket (), how); + + if (res) + set_winsock_errno (); + else + switch (how) + { + case SHUT_RD: + set_shutdown_read (); + break; + case SHUT_WR: + set_shutdown_write (); + break; + case SHUT_RDWR: + set_shutdown_read (); + set_shutdown_write (); + break; + } + return res; +} + int fhandler_socket::close () { int res = 0; + sigframe thisframe (mainthread); /* HACK to allow a graceful shutdown even if shutdown() hasn't been @@ -381,7 +905,6 @@ fhandler_socket::close () #define ASYNC_MASK (FD_READ|FD_WRITE|FD_OOB|FD_ACCEPT|FD_CONNECT) -/* Cygwin internal */ int fhandler_socket::ioctl (unsigned int cmd, void *p) { @@ -389,6 +912,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p) int res; struct ifconf ifc, *ifcp; struct ifreq *ifr, *ifrp; + sigframe thisframe (mainthread); switch (cmd) diff --git a/winsup/cygwin/net.cc b/winsup/cygwin/net.cc index 32e930392..d3eba725c 100644 --- a/winsup/cygwin/net.cc +++ b/winsup/cygwin/net.cc @@ -33,7 +33,6 @@ details. */ #include "pinfo.h" #include "registry.h" #include "wsock_event.h" -#include <sys/uio.h> extern "C" { int h_errno; @@ -558,104 +557,20 @@ done: return res; } -/* cygwin internal: map sockaddr into internet domain address */ - -static int get_inet_addr (const struct sockaddr *in, int inlen, - struct sockaddr_in *out, int *outlen, int* secret = 0) -{ - int secret_buf [4]; - int* secret_ptr = (secret ? : secret_buf); - - if (in->sa_family == AF_INET) - { - *out = * (sockaddr_in *)in; - *outlen = inlen; - return 1; - } - else if (in->sa_family == AF_LOCAL) - { - int fd = _open (in->sa_data, O_RDONLY); - if (fd == -1) - return 0; - - int ret = 0; - char buf[128]; - memset (buf, 0, sizeof buf); - if (read (fd, buf, sizeof buf) != -1) - { - sockaddr_in sin; - sin.sin_family = AF_INET; - sscanf (buf + strlen (SOCKET_COOKIE), "%hu %08x-%08x-%08x-%08x", - &sin.sin_port, - secret_ptr, secret_ptr + 1, secret_ptr + 2, secret_ptr + 3); - sin.sin_port = htons (sin.sin_port); - sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - *out = sin; - *outlen = sizeof sin; - ret = 1; - } - _close (fd); - return ret; - } - else - { - set_errno (EAFNOSUPPORT); - return 0; - } -} - /* exported as sendto: standards? */ extern "C" int -cygwin_sendto (int fd, - const void *buf, - int len, - unsigned int flags, - const struct sockaddr *to, - int tolen) +cygwin_sendto (int fd, const void *buf, int len, unsigned int flags, + const struct sockaddr *to, int tolen) { int res; - wsock_event wsock_evt; - LPWSAOVERLAPPED ovr; - fhandler_socket *h = get (fd); + fhandler_socket *fh = get (fd); if ((len && __check_invalid_read_ptr_errno (buf, (unsigned) len)) || __check_null_invalid_struct_errno (to, tolen) - || !h) + || !fh) res = -1; else - { - sockaddr_in sin; - sigframe thisframe (mainthread); - - if (get_inet_addr (to, tolen, &sin, &tolen) == 0) - return -1; - - if (h->is_nonblocking () || !(ovr = wsock_evt.prepare ())) - { - debug_printf ("Fallback to winsock 1 sendto call"); - if ((res = sendto (h->get_socket (), (const char *) buf, len, flags, - (sockaddr *) &sin, tolen)) == SOCKET_ERROR) - { - set_winsock_errno (); - res = -1; - } - } - else - { - WSABUF wsabuf = { len, (char *) buf }; - DWORD ret = 0; - if (WSASendTo (h->get_socket (), &wsabuf, 1, &ret, (DWORD)flags, - (sockaddr *) &sin, tolen, ovr, NULL) != SOCKET_ERROR) - res = ret; - else if ((res = WSAGetLastError ()) != WSA_IO_PENDING) - { - set_winsock_errno (); - res = -1; - } - else if ((res = wsock_evt.wait (h->get_socket (), (DWORD *)&flags)) == -1) - set_winsock_errno (); - } - } + res = fh->sendto (buf, len, flags, to, tolen); syscall_printf ("%d = sendto (%d, %x, %x, %x)", res, fd, buf, len, flags); @@ -664,53 +579,19 @@ cygwin_sendto (int fd, /* exported as recvfrom: standards? */ extern "C" int -cygwin_recvfrom (int fd, - char *buf, - int len, - int flags, - struct sockaddr *from, - int *fromlen) +cygwin_recvfrom (int fd, char *buf, int len, int flags, struct sockaddr *from, + int *fromlen) { int res; - wsock_event wsock_evt; - LPWSAOVERLAPPED ovr; - fhandler_socket *h = get (fd); + fhandler_socket *fh = get (fd); if (__check_null_invalid_struct_errno (buf, (unsigned) len) || check_null_invalid_struct_errno (fromlen) || (from && __check_null_invalid_struct_errno (from, (unsigned) *fromlen)) - || !h) + || !fh) res = -1; else - { - sigframe thisframe (mainthread); - - if (h->is_nonblocking () ||!(ovr = wsock_evt.prepare ())) - { - debug_printf ("Fallback to winsock 1 recvfrom call"); - if ((res = recvfrom (h->get_socket (), buf, len, flags, from, fromlen)) - == SOCKET_ERROR) - { - set_winsock_errno (); - res = -1; - } - } - else - { - WSABUF wsabuf = { len, (char *) buf }; - DWORD ret = 0; - if (WSARecvFrom (h->get_socket (), &wsabuf, 1, &ret, (DWORD *)&flags, - from, fromlen, ovr, NULL) != SOCKET_ERROR) - res = ret; - else if ((res = WSAGetLastError ()) != WSA_IO_PENDING) - { - set_winsock_errno (); - res = -1; - } - else if ((res = wsock_evt.wait (h->get_socket (), (DWORD *)&flags)) == -1) - set_winsock_errno (); - } - } + res = fh->recvfrom (buf, len, flags, from, fromlen); syscall_printf ("%d = recvfrom (%d, %x, %x, %x)", res, fd, buf, len, flags); @@ -719,17 +600,14 @@ cygwin_recvfrom (int fd, /* exported as setsockopt: standards? */ extern "C" int -cygwin_setsockopt (int fd, - int level, - int optname, - const void *optval, - int optlen) +cygwin_setsockopt (int fd, int level, int optname, const void *optval, + int optlen) { - fhandler_socket *h = get (fd); + fhandler_socket *fh = get (fd); int res = -1; const char *name = "error"; - if ((!optval || !__check_invalid_read_ptr_errno (optval, optlen)) && h) + if ((!optval || !__check_invalid_read_ptr_errno (optval, optlen)) && fh) { /* For the following debug_printf */ switch (optname) @@ -766,8 +644,8 @@ cygwin_setsockopt (int fd, break; } - res = setsockopt (h->get_socket (), level, optname, - (const char *) optval, optlen); + res = setsockopt (fh->get_socket (), level, optname, + (const char *) optval, optlen); if (optlen == 4) syscall_printf ("setsockopt optval=%x", *(long *) optval); @@ -783,18 +661,15 @@ cygwin_setsockopt (int fd, /* exported as getsockopt: standards? */ extern "C" int -cygwin_getsockopt (int fd, - int level, - int optname, - void *optval, - int *optlen) +cygwin_getsockopt (int fd, int level, int optname, void *optval, int *optlen) { - fhandler_socket *h = get (fd); + fhandler_socket *fh = get (fd); int res = -1; const char *name = "error"; if (!check_null_invalid_struct_errno (optlen) - && (!optval || !__check_null_invalid_struct_errno (optval, (unsigned) *optlen)) - && h) + && (!optval + || !__check_null_invalid_struct_errno (optval, (unsigned) *optlen)) + && fh) { /* For the following debug_printf */ switch (optname) @@ -831,8 +706,8 @@ cygwin_getsockopt (int fd, break; } - res = getsockopt (h->get_socket (), level, optname, - (char *) optval, (int *) optlen); + res = getsockopt (fh->get_socket (), level, optname, (char *) optval, + (int *) optlen); if (optname == SO_ERROR) { @@ -851,78 +726,21 @@ cygwin_getsockopt (int fd, /* exported as connect: standards? */ extern "C" int -cygwin_connect (int fd, - const struct sockaddr *name, - int namelen) +cygwin_connect (int fd, const struct sockaddr *name, int namelen) { int res; - BOOL secret_check_failed = FALSE; - BOOL in_progress = FALSE; - fhandler_socket *sock = get (fd); - sockaddr_in sin; - int secret [4]; - sigframe thisframe (mainthread); + fhandler_socket *fh = get (fd); if (__check_invalid_read_ptr_errno (name, namelen)) return -1; - if (get_inet_addr (name, namelen, &sin, &namelen, secret) == 0) - return -1; - - if (!sock) + if (!fh) res = -1; else - { - res = connect (sock->get_socket (), (sockaddr *) &sin, namelen); - if (res) - { - /* Special handling for connect to return the correct error code - when called on a non-blocking socket. */ - if (sock->is_nonblocking ()) - { - DWORD err = WSAGetLastError (); - if (err == WSAEWOULDBLOCK || err == WSAEALREADY) - { - WSASetLastError (WSAEINPROGRESS); - in_progress = TRUE; - } - else if (err == WSAEINVAL) - WSASetLastError (WSAEISCONN); - } - set_winsock_errno (); - } - if (sock->get_addr_family () == AF_LOCAL && - sock->get_socket_type () == SOCK_STREAM) - { - if (!res || in_progress) - { - if (!sock->create_secret_event (secret)) - { - secret_check_failed = TRUE; - } - else if (in_progress) - sock->signal_secret_event (); - } + res = fh->connect (name, namelen); - if (!secret_check_failed && !res) - { - if (!sock->check_peer_secret_event (&sin, secret)) - { - debug_printf ( "accept from unauthorized server" ); - secret_check_failed = TRUE; - } - } + syscall_printf ("%d = connect (%d, %x, %x)", res, fd, name, namelen); - if (secret_check_failed) - { - sock->close_secret_event (); - if (res) - closesocket (res); - set_errno (ECONNREFUSED); - res = -1; - } - } - } return res; } @@ -1179,86 +997,11 @@ cygwin_accept (int fd, struct sockaddr *peer, int *len) return -1; int res = -1; - BOOL secret_check_failed = FALSE; - BOOL in_progress = FALSE; - sigframe thisframe (mainthread); - - fhandler_socket *sock = get (fd); - if (sock) - { - /* Allows NULL peer and len parameters. */ - struct sockaddr_in peer_dummy; - int len_dummy; - if (!peer) - peer = (struct sockaddr *) &peer_dummy; - if (!len) - { - len_dummy = sizeof (struct sockaddr_in); - len = &len_dummy; - } - - /* accept on NT fails if len < sizeof (sockaddr_in) - * some programs set len to - * sizeof (name.sun_family) + strlen (name.sun_path) for UNIX domain - */ - if (len && ((unsigned) *len < sizeof (struct sockaddr_in))) - *len = sizeof (struct sockaddr_in); - - res = accept (sock->get_socket (), peer, len); // can't use a blocking call inside a lock - - if ((SOCKET) res == (SOCKET) INVALID_SOCKET && - WSAGetLastError () == WSAEWOULDBLOCK) - in_progress = TRUE; - - if (sock->get_addr_family () == AF_LOCAL && - sock->get_socket_type () == SOCK_STREAM) - { - if ((SOCKET) res != (SOCKET) INVALID_SOCKET || in_progress) - { - if (!sock->create_secret_event ()) - secret_check_failed = TRUE; - else if (in_progress) - sock->signal_secret_event (); - } - - if (!secret_check_failed && - (SOCKET) res != (SOCKET) INVALID_SOCKET) - { - if (!sock->check_peer_secret_event ((struct sockaddr_in*) peer)) - { - debug_printf ("connect from unauthorized client"); - secret_check_failed = TRUE; - } - } - - if (secret_check_failed) - { - sock->close_secret_event (); - if ((SOCKET) res != (SOCKET) INVALID_SOCKET) - closesocket (res); - set_errno (ECONNABORTED); - res = -1; - goto done; - } - } + fhandler_socket *fh = get (fd); + if (fh) + res = fh->accept (peer, len); - cygheap_fdnew res_fd; - if (res_fd < 0) - /* FIXME: what is correct errno? */; - else if ((SOCKET) res == (SOCKET) INVALID_SOCKET) - set_winsock_errno (); - else - { - fhandler_socket* res_fh = fdsock (res_fd, sock->get_name (), res); - if (sock->get_addr_family () == AF_LOCAL) - res_fh->set_sun_path (sock->get_sun_path ()); - res_fh->set_addr_family (sock->get_addr_family ()); - res_fh->set_socket_type (sock->get_socket_type ()); - res = res_fd; - } - } - done: syscall_printf ("%d = accept (%d, %x, %x)", res, fd, peer, len); return res; } @@ -1272,83 +1015,10 @@ cygwin_bind (int fd, const struct sockaddr *my_addr, int addrlen) int res = -1; - fhandler_socket *sock = get (fd); - if (sock) - { - if (my_addr->sa_family == AF_LOCAL) - { -#define un_addr ((struct sockaddr_un *) my_addr) - struct sockaddr_in sin; - int len = sizeof sin; - int fd; - - if (strlen (un_addr->sun_path) >= UNIX_PATH_LEN) - { - set_errno (ENAMETOOLONG); - goto out; - } - sin.sin_family = AF_INET; - sin.sin_port = 0; - sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - if (bind (sock->get_socket (), (sockaddr *) &sin, len)) - { - syscall_printf ("AF_LOCAL: bind failed %d", get_errno ()); - set_winsock_errno (); - goto out; - } - if (getsockname (sock->get_socket (), (sockaddr *) &sin, &len)) - { - syscall_printf ("AF_LOCAL: getsockname failed %d", get_errno ()); - set_winsock_errno (); - goto out; - } - - sin.sin_port = ntohs (sin.sin_port); - debug_printf ("AF_LOCAL: socket bound to port %u", sin.sin_port); - - /* bind must fail if file system socket object already exists - so _open () is called with O_EXCL flag. */ - fd = _open (un_addr->sun_path, - O_WRONLY | O_CREAT | O_EXCL | O_BINARY, - 0); - if (fd < 0) - { - if (get_errno () == EEXIST) - set_errno (EADDRINUSE); - goto out; - } - - sock->set_connect_secret (); - - char buf[sizeof (SOCKET_COOKIE) + 80]; - __small_sprintf (buf, "%s%u ", SOCKET_COOKIE, sin.sin_port); - sock->get_connect_secret (strchr (buf, '\0')); - len = strlen (buf) + 1; - - /* Note that the terminating nul is written. */ - if (_write (fd, buf, len) != len) - { - save_errno here; - _close (fd); - _unlink (un_addr->sun_path); - } - else - { - _close (fd); - chmod (un_addr->sun_path, - (S_IFSOCK | S_IRWXU | S_IRWXG | S_IRWXO) & ~cygheap->umask); - sock->set_sun_path (un_addr->sun_path); - res = 0; - } -#undef un_addr - } - else if (bind (sock->get_socket (), my_addr, addrlen)) - set_winsock_errno (); - else - res = 0; - } + fhandler_socket *fh = get (fd); + if (fh) + res = fh->bind (my_addr, addrlen); -out: syscall_printf ("%d = bind (%d, %x, %d)", res, fd, my_addr, addrlen); return res; } @@ -1363,36 +1033,10 @@ cygwin_getsockname (int fd, struct sockaddr *addr, int *namelen) int res = -1; - fhandler_socket *sock = get (fd); - if (sock) - { - if (sock->get_addr_family () == AF_LOCAL) - { - struct sockaddr_un *sun = (struct sockaddr_un *) addr; - memset (sun, 0, *namelen); - sun->sun_family = AF_LOCAL; - - if (!sock->get_sun_path ()) - sun->sun_path[0] = '\0'; - else - /* According to SUSv2 "If the actual length of the address is - greater than the length of the supplied sockaddr structure, the - stored address will be truncated." We play it save here so - that the path always has a trailing 0 even if it's truncated. */ - strncpy (sun->sun_path, sock->get_sun_path (), - *namelen - sizeof *sun + sizeof sun->sun_path - 1); - - *namelen = sizeof *sun - sizeof sun->sun_path - + strlen (sun->sun_path) + 1; - res = 0; - } - else - { - res = getsockname (sock->get_socket (), addr, namelen); - if (res) - set_winsock_errno (); - } - } + fhandler_socket *fh = get (fd); + if (fh) + res = fh->getsockname (addr, namelen); + syscall_printf ("%d = getsockname (%d, %x, %d)", res, fd, addr, namelen); return res; } @@ -1403,14 +1047,10 @@ cygwin_listen (int fd, int backlog) { int res = -1; + fhandler_socket *fh = get (fd); + if (fh) + res = fh->listen (backlog); - fhandler_socket *sock = get (fd); - if (sock) - { - res = listen (sock->get_socket (), backlog); - if (res) - set_winsock_errno (); - } syscall_printf ("%d = listen (%d, %d)", res, fd, backlog); return res; } @@ -1422,27 +1062,10 @@ cygwin_shutdown (int fd, int how) int res = -1; sigframe thisframe (mainthread); - fhandler_socket *sock = get (fd); - if (sock) - { - res = shutdown (sock->get_socket (), how); - if (res) - set_winsock_errno (); - else - switch (how) - { - case SHUT_RD: - sock->set_shutdown_read (); - break; - case SHUT_WR: - sock->set_shutdown_write (); - break; - case SHUT_RDWR: - sock->set_shutdown_read (); - sock->set_shutdown_write (); - break; - } - } + fhandler_socket *fh = get (fd); + if (fh) + res = fh->shutdown (how); + syscall_printf ("%d = shutdown (%d, %d)", res, fd, how); return res; } @@ -1498,23 +1121,18 @@ cygwin_herror (const char *s) extern "C" int cygwin_getpeername (int fd, struct sockaddr *name, int *len) { - int res; + int res = -1; + if (check_null_invalid_struct_errno (len) || __check_null_invalid_struct_errno (name, (unsigned) *len)) return -1; - fhandler_socket *h = get (fd); + fhandler_socket *fh = get (fd); + if (fh) + res = fh->getpeername (name, len); - if (!h) - res = -1; - else - { - res = getpeername (h->get_socket (), name, len); - if (res) - set_winsock_errno (); - } + syscall_printf ("%d = getpeername %d", res, fh->get_socket ()); - debug_printf ("%d = getpeername %d", res, h->get_socket ()); return res; } @@ -2476,64 +2094,32 @@ endhostent (void) /* exported as recvmsg: standards? */ extern "C" int -cygwin_recvmsg(int s, struct msghdr *msg, int flags) -{ - int ret, nb; - size_t tot = 0; - int i; - char *buf, *p; - struct iovec *iov = msg->msg_iov; - - for(i = 0; i < msg->msg_iovlen; ++i) - tot += iov[i].iov_len; - buf = (char *) malloc(tot); - if (tot != 0 && buf == NULL) - { - errno = ENOMEM; - return -1; - } - nb = ret = cygwin_recvfrom (s, buf, tot, flags, - (struct sockaddr *) msg->msg_name, (int *) &msg->msg_namelen); - p = buf; - while (nb > 0) - { - ssize_t cnt = min(nb, iov->iov_len); +cygwin_recvmsg (int s, struct msghdr *msg, int flags) +{ + if (check_null_invalid_struct_errno (msg)) + return -1; - memcpy (iov->iov_base, p, cnt); - p += cnt; - nb -= cnt; - ++iov; - } - free(buf); - return ret; + fhandler_socket *fh = get (s); + if (!fh) + { + set_errno (EINVAL); + return -1; + } + return fh->recvmsg (msg, flags); } /* exported as sendmsg: standards? */ extern "C" int -cygwin_sendmsg(int s, const struct msghdr *msg, int flags) -{ - int ret; - size_t tot = 0; - int i; - char *buf, *p; - struct iovec *iov = msg->msg_iov; - - for(i = 0; i < msg->msg_iovlen; ++i) - tot += iov[i].iov_len; - buf = (char *) malloc(tot); - if (tot != 0 && buf == NULL) +cygwin_sendmsg (int s, const struct msghdr *msg, int flags) +{ + if (__check_invalid_read_ptr_errno (msg, sizeof msg)) + return -1; + + fhandler_socket *fh = get (s); + if (!fh) { - errno = ENOMEM; + set_errno (EINVAL); return -1; } - p = buf; - for (i = 0; i < msg->msg_iovlen; ++i) - { - memcpy (p, iov[i].iov_base, iov[i].iov_len); - p += iov[i].iov_len; - } - ret = cygwin_sendto (s, buf, tot, flags, - (struct sockaddr *) msg->msg_name, msg->msg_namelen); - free (buf); - return ret; + return fh->sendmsg (msg, flags); } |