diff options
Diffstat (limited to 'security/nss/lib/ssl/ssldef.c')
| -rw-r--r-- | security/nss/lib/ssl/ssldef.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/security/nss/lib/ssl/ssldef.c b/security/nss/lib/ssl/ssldef.c new file mode 100644 index 000000000..7f16c26b7 --- /dev/null +++ b/security/nss/lib/ssl/ssldef.c @@ -0,0 +1,228 @@ +/* + * "Default" SSLSocket methods, used by sockets that do neither SSL nor socks. + * + * The contents of this file are subject to the Mozilla Public + * License Version 1.1 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + * implied. See the License for the specific language governing + * rights and limitations under the License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1994-2000 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU General Public License Version 2 or later (the + * "GPL"), in which case the provisions of the GPL are applicable + * instead of those above. If you wish to allow use of your + * version of this file only under the terms of the GPL and not to + * allow others to use your version of this file under the MPL, + * indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by + * the GPL. If you do not delete the provisions above, a recipient + * may use your version of this file under either the MPL or the + * GPL. + * + * $Id$ + */ + +#include "cert.h" +#include "ssl.h" +#include "sslimpl.h" + +#if defined(WIN32) +#define MAP_ERROR(from,to) if (err == from) { PORT_SetError(to); } +#else +#define MAP_ERROR(from,to) +#endif + +int ssl_DefConnect(sslSocket *ss, const PRNetAddr *sa) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->connect(lower, sa, ss->cTimeout); + return rv; +} + +int ssl_DefBind(sslSocket *ss, const PRNetAddr *addr) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->bind(lower, addr); + return rv; +} + +int ssl_DefListen(sslSocket *ss, int backlog) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->listen(lower, backlog); + return rv; +} + +int ssl_DefShutdown(sslSocket *ss, int how) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->shutdown(lower, how); + return rv; +} + +int ssl_DefRecv(sslSocket *ss, unsigned char *buf, int len, int flags) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->recv(lower, (void *)buf, len, flags, ss->rTimeout); + if (rv < 0) { + PRErrorCode err = PR_GetError(); + MAP_ERROR(PR_SOCKET_SHUTDOWN_ERROR, PR_CONNECT_RESET_ERROR) + } + return rv; +} + +/* Default (unencrypted) send. + * Returns SECSuccess or SECFailure, NOT SECWouldBlock. + * Returns positive count if any data was written. + * ALWAYS check for a short write after calling ssl_DefSend. + */ +int ssl_DefSend(sslSocket *ss, const unsigned char *buf, int len, int flags) +{ + PRFileDesc *lower = ss->fd->lower; + int rv, count; + + count = 0; + for (;;) { + rv = lower->methods->send(lower, (const void *)buf, len, + flags, ss->wTimeout); + if (rv < 0) { + PRErrorCode err = PR_GetError(); + if (err == PR_WOULD_BLOCK_ERROR) { + return count ? count : rv; + } + MAP_ERROR(PR_CONNECT_ABORTED_ERROR, PR_CONNECT_RESET_ERROR) + /* Loser */ + return rv; + } + count += rv; + if (rv < len) { + /* Short send. Send the rest in the next call */ + buf += rv; + len -= rv; + continue; + } + break; + } + return count; +} + +int ssl_DefRead(sslSocket *ss, unsigned char *buf, int len) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->read(lower, (void *)buf, len); + if (rv < 0) { + PRErrorCode err = PR_GetError(); + MAP_ERROR(PR_SOCKET_SHUTDOWN_ERROR, PR_CONNECT_RESET_ERROR) + } + return rv; +} + +int ssl_DefWrite(sslSocket *ss, const unsigned char *buf, int len) +{ + PRFileDesc *lower = ss->fd->lower; + int rv, count; + + count = 0; + for (;;) { + rv = lower->methods->write(lower, (void *)buf, len); + if (rv < 0) { + PRErrorCode err = PR_GetError(); + if (err == PR_WOULD_BLOCK_ERROR) { + return count ? count : rv; + } + MAP_ERROR(PR_CONNECT_ABORTED_ERROR, PR_CONNECT_RESET_ERROR) + /* Loser */ + return rv; + } + count += rv; + if (rv != len) { + /* Short write. Send the rest in the next call */ + buf += rv; + len -= rv; + continue; + } + break; + } + return count; +} + +int ssl_DefGetpeername(sslSocket *ss, PRNetAddr *name) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->getpeername(lower, name); + return rv; +} + +int ssl_DefGetsockname(sslSocket *ss, PRNetAddr *name) +{ + PRFileDesc *lower = ss->fd->lower; + int rv; + + rv = lower->methods->getsockname(lower, name); + return rv; +} + +int ssl_DefClose(sslSocket *ss) +{ + PRFileDesc *fd; + PRFileDesc *popped; + int rv; + + fd = ss->fd; + + /* First, remove the SSL layer PRFileDesc from the socket's stack, + ** then invoke the SSL layer's PRFileDesc destructor. + ** This must happen before the next layer down is closed. + */ + PORT_Assert(fd->higher == NULL); + if (fd->higher) { + PORT_SetError(PR_BAD_DESCRIPTOR_ERROR); + return SECFailure; + } + ss->fd = NULL; + + /* PR_PopIOLayer will swap the contents of the top two PRFileDescs on + ** the stack, and then remove the second one. This way, the address + ** of the PRFileDesc on the top of the stack doesn't change. + */ + popped = PR_PopIOLayer(fd, PR_TOP_IO_LAYER); + popped->dtor(popped); + + /* fd is now the PRFileDesc for the next layer down. + ** Now close the underlying socket. + */ + rv = fd->methods->close(fd); + + ssl_FreeSocket(ss); + + SSL_TRC(5, ("%d: SSL[%d]: closing, rv=%d errno=%d", + SSL_GETPID(), fd, rv, PORT_GetError())); + return rv; +} |