--- /dev/null
+diff -urbBN rsync-2.6.6.org/cleanup.c rsync-2.6.6/cleanup.c
+--- rsync-2.6.6.org/cleanup.c 2005-03-05 19:58:38.000000000 +0100
++++ rsync-2.6.6/cleanup.c 2005-11-14 16:49:56.182884500 +0100
+@@ -22,6 +22,9 @@
+ #include "rsync.h"
+
+ extern int io_error;
++#if HAVE_OPENSSL
++extern int use_ssl;
++#endif
+ extern int keep_partial;
+ extern int log_got_error;
+ extern char *partial_dir;
+@@ -97,6 +100,11 @@
+ signal(SIGUSR1, SIG_IGN);
+ signal(SIGUSR2, SIG_IGN);
+
++#if HAVE_OPENSSL
++ if (use_ssl)
++ end_tls();
++#endif
++
+ if (verbose > 3) {
+ rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): entered\n",
+ code, safe_fname(file), line);
+diff -urbBN rsync-2.6.6.org/clientserver.c rsync-2.6.6/clientserver.c
+--- rsync-2.6.6.org/clientserver.c 2005-06-10 18:57:43.000000000 +0200
++++ rsync-2.6.6/clientserver.c 2005-11-14 16:49:56.182884500 +0100
+@@ -44,6 +44,9 @@
+ extern int orig_umask;
+ extern int no_detach;
+ extern int default_af_hint;
++#if HAVE_OPENSSL
++extern int use_ssl;
++#endif
+ extern char *bind_address;
+ extern struct filter_list_struct server_filter_list;
+ extern char *config_file;
+@@ -98,8 +101,18 @@
+ exit_cleanup(RERR_SOCKETIO);
+
+ ret = start_inband_exchange(user, path, fd, fd, argc);
++ if (ret)
++ return ret;
++
++#if HAVE_OPENSSL
++ if (use_ssl) {
++ int f_in = get_tls_rfd();
++ int f_out = get_tls_wfd();
++ return client_run(f_in, f_out, -1, argc, argv);
++ }
++#endif
+
+- return ret ? ret : client_run(fd, fd, -1, argc, argv);
++ return client_run(fd, fd, -1, argc, argv);
+ }
+
+ int start_inband_exchange(char *user, char *path, int f_in, int f_out,
+@@ -160,6 +173,33 @@
+ if (verbose > 1)
+ print_child_argv(sargs);
+
++#if HAVE_OPENSSL
++ if (use_ssl) {
++ io_printf(f_out, "#starttls\n");
++ while (1) {
++ if (!read_line(f_in, line, sizeof(line)-1)) {
++ rprintf(FERROR, "rsync: did not receive reply to #starttls\n");
++ return -1;
++ }
++ if (strncmp(line, "@ERROR", 6) == 0) {
++ rprintf(FERROR, "%s\n", line);
++ return -1;
++ }
++ if (strcmp(line, "@RSYNCD: starttls") == 0) {
++ break;
++ }
++ rprintf(FINFO, "%s\n", line);
++ }
++ if (start_tls(f_in, f_out)) {
++ rprintf(FERROR, "rsync: error during SSL handshake: %s\n",
++ get_ssl_error());
++ return -1;
++ }
++ f_in = get_tls_rfd();
++ f_out = get_tls_wfd();
++ }
++#endif
++
+ p = strchr(path,'/');
+ if (p) *p = 0;
+ io_printf(f_out, "%s\n", path);
+@@ -188,6 +228,10 @@
+ * server to terminate the listing of modules.
+ * We don't want to go on and transfer
+ * anything; just exit. */
++#if HAVE_OPENSSL
++ if (use_ssl)
++ end_tls();
++#endif
+ exit(0);
+ }
+
+@@ -195,6 +239,10 @@
+ rprintf(FERROR, "%s\n", line);
+ /* This is always fatal; the server will now
+ * close the socket. */
++#if HAVE_OPENSSL
++ if (use_ssl)
++ end_tls();
++#endif
+ return -1;
+ }
+
+@@ -590,6 +639,9 @@
+ if (protocol_version > remote_protocol)
+ protocol_version = remote_protocol;
+
++#if HAVE_OPENSSL
++retry:
++#endif
+ line[0] = 0;
+ if (!read_line(f_in, line, sizeof line - 1))
+ return -1;
+@@ -599,6 +651,20 @@
+ return -1;
+ }
+
++#if HAVE_OPENSSL
++ if (use_ssl && strcmp(line, "#starttls") == 0) {
++ io_printf(f_out, "@RSYNCD: starttls\n");
++ if (start_tls(f_in, f_out)) {
++ rprintf(FLOG, "SSL connection failed: %s\n",
++ get_ssl_error());
++ return -1;
++ }
++ f_in = get_tls_rfd();
++ f_out = get_tls_wfd();
++ goto retry;
++ }
++#endif
++
+ if (*line == '#') {
+ /* it's some sort of command that I don't understand */
+ io_printf(f_out, "@ERROR: Unknown command '%s'\n", line);
+diff -urbBN rsync-2.6.6.org/configure.in rsync-2.6.6/configure.in
+--- rsync-2.6.6.org/configure.in 2005-07-28 21:31:05.000000000 +0200
++++ rsync-2.6.6/configure.in 2005-11-14 16:49:56.186884750 +0100
+@@ -293,6 +293,21 @@
+ AC_SEARCH_LIBS(getaddrinfo, inet6)
+ fi
+
++AC_ARG_ENABLE(openssl,
++ AC_HELP_STRING([--enable-openssl], [compile SSL support with OpenSSL.]))
++
++if test "x$enable_openssl" != xno
++then
++ have_ssl=yes
++ AC_CHECK_LIB(ssl, SSL_library_init, , [have_ssl=no])
++ if test "x$have_ssl" = xyes
++ then
++ AC_DEFINE(HAVE_OPENSSL, 1, [true if you want to use SSL.])
++ SSL_OBJS=ssl.o
++ AC_SUBST(SSL_OBJS)
++ fi
++fi
++
+ AC_MSG_CHECKING([whether to call shutdown on all sockets])
+ case $host_os in
+ *cygwin* ) AC_MSG_RESULT(yes)
+diff -urbBN rsync-2.6.6.org/Makefile.in rsync-2.6.6/Makefile.in
+--- rsync-2.6.6.org/Makefile.in 2005-07-07 23:29:57.000000000 +0200
++++ rsync-2.6.6/Makefile.in 2005-11-14 16:49:56.182884500 +0100
+@@ -38,7 +38,7 @@
+ DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o
+ popt_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \
+ popt/popthelp.o popt/poptparse.o
+-OBJS=$(OBJS1) $(OBJS2) $(OBJS3) $(DAEMON_OBJ) $(LIBOBJ) $(ZLIBOBJ) @BUILD_POPT@
++OBJS=$(OBJS1) $(OBJS2) $(OBJS3) $(DAEMON_OBJ) $(LIBOBJ) $(ZLIBOBJ) @BUILD_POPT@ @SSL_OBJS@
+
+ TLS_OBJ = tls.o syscall.o lib/compat.o lib/snprintf.o lib/permstring.o
+
+diff -urbBN rsync-2.6.6.org/options.c rsync-2.6.6/options.c
+--- rsync-2.6.6.org/options.c 2005-05-19 10:52:17.000000000 +0200
++++ rsync-2.6.6/options.c 2005-11-14 16:50:48.190134750 +0100
+@@ -157,6 +157,14 @@
+ int always_checksum = 0;
+ int list_only = 0;
+
++#if HAVE_OPENSSL
++int use_ssl = 0;
++char *ssl_cert_path = NULL;
++char *ssl_key_path = NULL;
++char *ssl_key_passwd = NULL;
++char *ssl_ca_path = NULL;
++#endif
++
+ #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
+ char *batch_name = NULL;
+
+@@ -182,6 +190,7 @@
+ char const *hardlinks = "no ";
+ char const *links = "no ";
+ char const *ipv6 = "no ";
++ char const *ssl = "no ";
+ STRUCT_STAT *dumstat;
+
+ #ifdef HAVE_SOCKETPAIR
+@@ -204,6 +213,10 @@
+ ipv6 = "";
+ #endif
+
++#if HAVE_OPENSSL
++ ssl = "";
++#endif
++
+ rprintf(f, "%s version %s protocol version %d\n",
+ RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
+ rprintf(f,
+@@ -217,10 +230,10 @@
+ /* Note that this field may not have type ino_t. It depends
+ * on the complicated interaction between largefile feature
+ * macros. */
+- rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums\n",
++ rprintf(f, " %sinplace, %sIPv6, %d-bit system inums, %d-bit internal inums, %sssl\n",
+ have_inplace, ipv6,
+ (int) (sizeof dumstat->st_ino * 8),
+- (int) (sizeof (int64) * 8));
++ (int) (sizeof (int64) * 8), ssl);
+ #ifdef MAINTAINER_MODE
+ rprintf(f, " panic action: \"%s\"\n",
+ get_panic_action());
+@@ -352,6 +365,13 @@
+ rprintf(F," -4, --ipv4 prefer IPv4\n");
+ rprintf(F," -6, --ipv6 prefer IPv6\n");
+ #endif
++#if HAVE_OPENSSL
++ rprintf(F," --ssl allow socket connections to use SSL\n");
++ rprintf(F," --ssl-cert=FILE path to daemon's SSL certificate\n");
++ rprintf(F," --ssl-key=FILE path to daemon's SSL private key\n");
++ rprintf(F," --ssl-key-passwd=PASS password for PEM-encoded private key\n");
++ rprintf(F," --ssl-ca-certs=FILE path to trusted CA certificates\n");
++#endif
+ rprintf(F," --version print version number\n");
+ rprintf(F," -h, --help show this help screen\n");
+
+@@ -362,7 +382,7 @@
+
+ enum {OPT_VERSION = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
+ OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST,
+- OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW,
++ OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_USE_SSL,
+ OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
+ OPT_REFUSED_BASE = 9000};
+
+@@ -464,6 +484,13 @@
+ {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
+ {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
+ #endif
++#if HAVE_OPENSSL
++ {"ssl", 0, POPT_ARG_NONE, 0, OPT_USE_SSL, 0, 0},
++ {"ssl-cert", 0, POPT_ARG_STRING, &ssl_cert_path, OPT_USE_SSL, 0, 0},
++ {"ssl-key", 0, POPT_ARG_STRING, &ssl_key_path, OPT_USE_SSL, 0, 0},
++ {"ssl-key-passwd", 0, POPT_ARG_STRING, &ssl_key_passwd, OPT_USE_SSL, 0, 0},
++ {"ssl-ca-certs", 0, POPT_ARG_STRING, &ssl_ca_path, OPT_USE_SSL, 0, 0},
++#endif
+ /* All these options switch us into daemon-mode option-parsing. */
+ {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
+ {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
+@@ -508,6 +535,13 @@
+ {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
+ {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
+ {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
++#if HAVE_OPENSSL
++ {"ssl", 0, POPT_ARG_NONE, 0, OPT_USE_SSL, 0, 0},
++ {"ssl-cert", 0, POPT_ARG_STRING, &ssl_cert_path, OPT_USE_SSL, 0, 0},
++ {"ssl-key", 0, POPT_ARG_STRING, &ssl_key_path, OPT_USE_SSL, 0, 0},
++ {"ssl-key-passwd", 0, POPT_ARG_STRING, &ssl_key_passwd, OPT_USE_SSL, 0, 0},
++ {"ssl-ca-certs", 0, POPT_ARG_STRING, &ssl_ca_path, OPT_USE_SSL, 0, 0},
++#endif
+ {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
+ {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
+ {0,0,0,0, 0, 0, 0}
+@@ -876,6 +910,12 @@
+ basis_dir[basis_dir_cnt++] = (char *)arg;
+ break;
+
++ case OPT_USE_SSL:
++#if HAVE_OPENSSL
++ use_ssl = 1;
++#endif
++ break;
++
+ default:
+ /* A large opt value means that set_refuse_options()
+ * turned this option off. */
+@@ -1129,6 +1169,17 @@
+ if (delay_updates && !partial_dir)
+ partial_dir = partialdir_for_delayupdate;
+
++#if HAVE_OPENSSL
++ if (use_ssl) {
++ if (init_tls()) {
++ snprintf(err_buf, sizeof(err_buf),
++ "Openssl error: %s\n",
++ get_ssl_error());
++ return 0;
++ }
++ }
++#endif
++
+ if (inplace) {
+ #ifdef HAVE_FTRUNCATE
+ if (partial_dir) {
+@@ -1498,11 +1549,28 @@
+ {
+ char *p;
+ int not_host;
++ int url_prefix_len = sizeof URL_PREFIX - 1;
+
+- if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
++ if (!port_ptr)
++ url_prefix_len = 0;
++ else if (strncasecmp(URL_PREFIX, s, url_prefix_len) != 0) {
++#if HAVE_OPENSSL
++ url_prefix_len = sizeof SSL_URL_PREFIX - 1;
++ if (strncasecmp(SSL_URL_PREFIX, s, url_prefix_len) != 0)
++ url_prefix_len = 0;
++ else {
++ if (!use_ssl)
++ init_tls();
++ use_ssl = 1;
++ }
++#else
++ url_prefix_len = 0;
++#endif
++ }
++ if (url_prefix_len) {
+ char *path;
+ int hostlen;
+- s += strlen(URL_PREFIX);
++ s += url_prefix_len;
+ if ((p = strchr(s, '/')) != NULL) {
+ hostlen = p - s;
+ path = p + 1;
+diff -urbBN rsync-2.6.6.org/rsync.h rsync-2.6.6/rsync.h
+--- rsync-2.6.6.org/rsync.h 2005-05-03 19:00:47.000000000 +0200
++++ rsync-2.6.6/rsync.h 2005-11-14 16:49:56.190885000 +0100
+@@ -32,6 +32,7 @@
+
+ #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
+ #define URL_PREFIX "rsync://"
++#define SSL_URL_PREFIX "rsyncs://"
+
+ #define BACKUP_SUFFIX "~"
+
+@@ -410,6 +411,11 @@
+ # define SIZEOF_INT64 SIZEOF_OFF_T
+ #endif
+
++#if HAVE_OPENSSL
++#include <openssl/ssl.h>
++#include <openssl/err.h>
++#endif
++
+ /* Starting from protocol version 26, we always use 64-bit
+ * ino_t and dev_t internally, even if this platform does not
+ * allow files to have 64-bit inums. That's because the
+diff -urbBN rsync-2.6.6.org/ssl.c rsync-2.6.6/ssl.c
+--- rsync-2.6.6.org/ssl.c 1970-01-01 01:00:00.000000000 +0100
++++ rsync-2.6.6/ssl.c 2005-11-14 16:49:56.190885000 +0100
+@@ -0,0 +1,366 @@
++/* -*- c-file-style: "linux" -*-
++ * ssl.c: operations for negotiating SSL rsync connections.
++ *
++ * Copyright (C) 2003 Casey Marshall <rsdio@metastatic.org>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
++ */
++
++#include "rsync.h"
++
++#if HAVE_SYS_SELECT_H
++#include <sys/select.h>
++#else
++#include <sys/time.h>
++#include <sys/types.h>
++#include <unistd.h>
++#endif
++#include <string.h>
++
++#define BUF_SIZE 1024
++
++extern int verbose;
++extern int am_daemon;
++extern int am_server;
++
++extern char *ssl_cert_path;
++extern char *ssl_key_path;
++extern char *ssl_key_passwd;
++extern char *ssl_ca_path;
++
++static SSL_CTX *ssl_ctx;
++static SSL *ssl;
++static int tls_read[2] = { -1, -1 };
++static int tls_write[2] = { -1, -1 };
++static int ssl_running;
++static int ssl_pid = -1;
++
++/**
++ * A non-interactive callback to be passed to SSL_CTX_set_default_password_cb,
++ * which merely copies the value of ssl_key_passwd into buf. This is
++ * used for when the private key password is supplied via an option.
++ */
++static int default_password_cb(char *buf, int n, UNUSED(int f), UNUSED(void *u))
++{
++ if (ssl_key_passwd == NULL || n < (int)strlen(ssl_key_passwd))
++ return 0;
++ strncpy(buf, ssl_key_passwd, n-1);
++ return strlen(ssl_key_passwd);
++}
++
++/**
++ * If verbose, this method traces the status of the SSL handshake.
++ */
++static void info_callback(const SSL *ssl, int cb, int val)
++{
++ char buf[128];
++ char *cbs;
++
++ switch (cb) {
++ case SSL_CB_LOOP:
++ cbs = "SSL_CB_LOOP";
++ break;
++ case SSL_CB_EXIT:
++ cbs = "SSL_CB_EXIT";
++ break;
++ case SSL_CB_READ:
++ cbs = "SSL_CB_READ";
++ break;
++ case SSL_CB_WRITE:
++ cbs = "SSL_CB_WRITE";
++ break;
++ case SSL_CB_ALERT:
++ cbs = "SSL_CB_ALERT";
++ break;
++ case SSL_CB_READ_ALERT:
++ cbs = "SSL_CB_READ_ALERT";
++ break;
++ case SSL_CB_WRITE_ALERT:
++ cbs = "SSL_CB_WRITE_ALERT";
++ break;
++ case SSL_CB_ACCEPT_LOOP:
++ cbs = "SSL_CB_ACCEPT_LOOP";
++ break;
++ case SSL_CB_ACCEPT_EXIT:
++ cbs = "SSL_CB_ACCEPT_EXIT";
++ break;
++ case SSL_CB_CONNECT_LOOP:
++ cbs = "SSL_CB_CONNECT_LOOP";
++ break;
++ case SSL_CB_CONNECT_EXIT:
++ cbs = "SSL_CB_CONNECT_EXIT";
++ break;
++ case SSL_CB_HANDSHAKE_START:
++ cbs = "SSL_CB_HANDSHAKE_START";
++ break;
++ case SSL_CB_HANDSHAKE_DONE:
++ cbs = "SSL_CB_HANDSHAKE_DONE";
++ break;
++ default:
++ snprintf(buf, sizeof buf, "??? (%d)", cb);
++ cbs = buf;
++ break;
++ }
++ if (verbose > 2) {
++ rprintf(FLOG, "SSL: info_callback(%p,%s,%d)\n", ssl, cbs, val);
++ if (cb == SSL_CB_HANDSHAKE_DONE) {
++ SSL_CIPHER_description(SSL_get_current_cipher((SSL*)ssl),
++ buf, sizeof buf);
++ rprintf(FLOG, "SSL: cipher: %s", buf);
++ }
++ }
++}
++
++/**
++ * Initializes the SSL context for TLSv1 connections; returns zero on
++ * success.
++ */
++int init_tls(void)
++{
++ if (ssl_ctx)
++ return 0;
++ SSL_library_init();
++ SSL_load_error_strings();
++ ssl_ctx = SSL_CTX_new(TLSv1_method());
++ if (!ssl_ctx)
++ return 1;
++ SSL_CTX_set_info_callback(ssl_ctx, info_callback);
++
++ /* Sets the certificate sent to the other party. */
++ if (ssl_cert_path != NULL
++ && SSL_CTX_use_certificate_file(ssl_ctx, ssl_cert_path,
++ SSL_FILETYPE_PEM) != 1)
++ return 1;
++ /* Set up the simple non-interactive callback if the password
++ * was supplied on the command line. */
++ if (ssl_key_passwd != NULL)
++ SSL_CTX_set_default_passwd_cb(ssl_ctx, default_password_cb);
++ /* Sets the private key that matches the public certificate. */
++ if (ssl_key_path != NULL) {
++ if (SSL_CTX_use_PrivateKey_file(ssl_ctx, ssl_key_path,
++ SSL_FILETYPE_PEM) != 1)
++ return 1;
++ if (SSL_CTX_check_private_key(ssl_ctx) != 1)
++ return 1;
++ }
++ if (ssl_ca_path != NULL
++ && !SSL_CTX_load_verify_locations(ssl_ctx, ssl_ca_path, NULL))
++ return 1;
++
++ return 0;
++}
++
++/**
++ * Returns the error string for the current SSL error, if any.
++ */
++char *get_ssl_error(void)
++{
++ return ERR_error_string(ERR_get_error(), NULL);
++}
++
++/**
++ * Returns the input file descriptor for the SSL connection.
++ */
++int get_tls_rfd(void)
++{
++ return tls_read[0];
++}
++
++/**
++ * Returns the output file descriptor for the SSL connection.
++ */
++int get_tls_wfd(void)
++{
++ return tls_write[1];
++}
++
++/**
++ * Signal handler that ends the SSL connection.
++ */
++static RETSIGTYPE tls_sigusr1(int UNUSED(val))
++{
++ if (ssl) {
++ SSL_shutdown(ssl);
++ SSL_free(ssl);
++ ssl = NULL;
++ }
++ ssl_running = 0;
++}
++
++/**
++ * Negotiates the TLS connection, creates a socket pair for communicating
++ * with the rsync process, then forks into a new process that will handle
++ * the communication.
++ *
++ * 0 is returned on success.
++ */
++int start_tls(int f_in, int f_out)
++{
++ int tls_fd;
++ int n = 0, r;
++ unsigned char buf1[BUF_SIZE], buf2[BUF_SIZE];
++ int avail1 = 0, avail2 = 0, write1 = 0, write2 = 0;
++ fd_set rd, wd;
++
++ if (fd_pair(tls_read))
++ return 1;
++ if (fd_pair(tls_write))
++ return 1;
++
++ set_blocking(tls_read[0]);
++ set_blocking(tls_read[1]);
++ set_blocking(tls_write[0]);
++ set_blocking(tls_write[1]);
++ set_blocking(f_in);
++ set_blocking(f_out);
++
++ ssl_pid = do_fork();
++ if (ssl_pid < 0)
++ return -1;
++ if (ssl_pid != 0) {
++ close(tls_write[0]);
++ close(tls_read[1]);
++ return 0;
++ }
++
++ signal(SIGUSR1, tls_sigusr1);
++ ssl = SSL_new(ssl_ctx);
++ if (!ssl)
++ goto closed;
++ if (am_daemon || am_server)
++ SSL_set_accept_state(ssl);
++ else
++ SSL_set_connect_state(ssl);
++ SSL_set_rfd(ssl, f_in);
++ SSL_set_wfd(ssl, f_out);
++
++ tls_fd = SSL_get_fd(ssl);
++ n = tls_write[0];
++ n = MAX(tls_read[1], n);
++ n = MAX(tls_fd, n) + 1;
++
++ ssl_running = 1;
++ while (ssl_running) {
++ FD_ZERO(&rd);
++ FD_ZERO(&wd);
++ FD_SET(tls_write[0], &rd);
++ FD_SET(tls_read[1], &wd);
++ FD_SET(tls_fd, &rd);
++ FD_SET(tls_fd, &wd);
++
++ r = select(n, &rd, &wd, NULL, NULL);
++
++ if (r == -1 && errno == EINTR)
++ continue;
++ if (FD_ISSET(tls_write[0], &rd)) {
++ r = read(tls_write[0], buf1+avail1, BUF_SIZE-avail1);
++ if (r >= 0)
++ avail1 += r;
++ else {
++ rprintf(FERROR, "pipe read error: %s\n",
++ strerror(errno));
++ break;
++ }
++ }
++ if (FD_ISSET(tls_fd, &rd)) {
++ r = SSL_read(ssl, buf2+avail2, BUF_SIZE-avail2);
++ if (r > 0)
++ avail2 += r;
++ else {
++ switch (SSL_get_error(ssl, r)) {
++ case SSL_ERROR_ZERO_RETURN:
++ goto closed;
++ case SSL_ERROR_WANT_READ:
++ case SSL_ERROR_WANT_WRITE:
++ break;
++ case SSL_ERROR_SYSCALL:
++ if (r == 0)
++ rprintf(FERROR, "SSL spurious EOF\n");
++ else
++ rprintf(FERROR, "SSL I/O error: %s\n",
++ strerror(errno));
++ goto closed;
++ case SSL_ERROR_SSL:
++ rprintf(FERROR, "SSL: %s\n",
++ ERR_error_string(ERR_get_error(), NULL));
++ goto closed;
++ default:
++ rprintf(FERROR, "unexpected ssl error %d\n", r);
++ goto closed;
++ }
++ }
++ }
++ if (FD_ISSET(tls_read[1], &wd) && write2 < avail2) {
++ r = write(tls_read[1], buf2+write2, avail2-write2);
++ if (r >= 0)
++ write2 += r;
++ else {
++ rprintf(FERROR, "pipe write error: %s\n",
++ strerror(errno));
++ break;
++ }
++ }
++ if (FD_ISSET(tls_fd, &wd) && write1 < avail1) {
++ r = SSL_write(ssl, buf1+write1, avail1-write1);
++ if (r > 0)
++ write1 += r;
++ else {
++ switch (SSL_get_error(ssl, r)) {
++ case SSL_ERROR_ZERO_RETURN:
++ goto closed;
++ case SSL_ERROR_WANT_READ:
++ case SSL_ERROR_WANT_WRITE:
++ break;
++ case SSL_ERROR_SYSCALL:
++ if (r == 0)
++ rprintf(FERROR, "SSL: spurious EOF\n");
++ else
++ rprintf(FERROR, "SSL: I/O error: %s\n",
++ strerror(errno));
++ goto closed;
++ case SSL_ERROR_SSL:
++ rprintf(FERROR, "SSL: %s\n",
++ ERR_error_string(ERR_get_error(), NULL));
++ goto closed;
++ default:
++ rprintf(FERROR, "unexpected ssl error %d\n", r);
++ goto closed;
++ }
++ }
++ }
++ if (avail1 == write1)
++ avail1 = write1 = 0;
++ if (avail2 == write2)
++ avail2 = write2 = 0;
++ }
++
++ /* XXX I'm pretty sure that there is a lot that I am not considering
++ here. Bugs? Yes, probably. */
++
++ /* We're finished. */
++ closed:
++ close(tls_read[1]);
++ close(tls_write[0]);
++ exit(0);
++}
++
++/**
++ * Ends the TLS connection.
++ */
++void end_tls(void)
++{
++ if (ssl_pid > 0)
++ kill(ssl_pid, SIGUSR1);
++}
projects / packages / rsync.git / commitdiff