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-rw-r--r--source4/libcli/raw/clisocket.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/source4/libcli/raw/clisocket.c b/source4/libcli/raw/clisocket.c
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+++ b/source4/libcli/raw/clisocket.c
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+/*
+ Unix SMB/CIFS implementation.
+ SMB client socket context management functions
+ Copyright (C) Andrew Tridgell 1994-1998
+ Copyright (C) James Myers 2003 <myersjj@samba.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 "includes.h"
+
+
+/*
+ create a cli_socket context
+*/
+struct cli_socket *cli_sock_init(void)
+{
+ struct cli_socket *sock;
+ TALLOC_CTX *mem_ctx;
+
+ mem_ctx = talloc_init("cli_socket");
+ if (!mem_ctx) return NULL;
+
+ sock = talloc_zero(mem_ctx, sizeof(*sock));
+ if (!sock) {
+ talloc_destroy(mem_ctx);
+ return NULL;
+ }
+
+ sock->mem_ctx = mem_ctx;
+ sock->fd = -1;
+ sock->port = 445;
+ /* 20 second default timeout */
+ sock->timeout = 20000;
+
+ return sock;
+}
+
+/*
+ connect a cli_socket context to an IP/port pair
+ if port is 0 then choose 445 then 139
+*/
+BOOL cli_sock_connect(struct cli_socket *sock, struct in_addr *ip, int port)
+{
+ if (getenv("LIBSMB_PROG")) {
+ sock->fd = sock_exec(getenv("LIBSMB_PROG"));
+ return sock->fd != -1;
+ }
+
+ if (port == 0) {
+ return cli_sock_connect(sock, ip, 445) ||
+ cli_sock_connect(sock, ip, 139);
+ }
+
+ sock->dest_ip = *ip;
+ sock->port = port;
+ sock->fd = open_socket_out(SOCK_STREAM,
+ &sock->dest_ip,
+ sock->port,
+ LONG_CONNECT_TIMEOUT);
+ return (sock->fd != -1);
+}
+
+
+/****************************************************************************
+ reduce socket reference count - if it becomes zero then close
+****************************************************************************/
+void cli_sock_close(struct cli_socket *sock)
+{
+ sock->reference_count--;
+ if (sock->reference_count <= 0 && sock->fd != -1) {
+ close(sock->fd);
+ sock->fd = -1;
+ }
+}
+
+/****************************************************************************
+ Set socket options on a open connection.
+****************************************************************************/
+void cli_sock_set_options(struct cli_socket *sock, const char *options)
+{
+ set_socket_options(sock->fd, options);
+}
+
+/****************************************************************************
+ Write to socket. Return amount written.
+****************************************************************************/
+ssize_t cli_sock_write(struct cli_socket *sock, const char *data, size_t len)
+{
+ return write_data(sock->fd, data, len);
+}
+
+
+/****************************************************************************
+ Read from socket. return amount read
+****************************************************************************/
+ssize_t cli_sock_read(struct cli_socket *sock, char *data, size_t len)
+{
+ return read_data(sock->fd, data, len);
+}
+
+/****************************************************************************
+resolve a hostname and connect
+****************************************************************************/
+BOOL cli_sock_connect_byname(struct cli_socket *sock, const char *host, int port)
+{
+ int name_type = 0x20;
+ struct in_addr ip;
+ TALLOC_CTX *mem_ctx;
+ char *name, *p;
+
+ if (getenv("LIBSMB_PROG")) {
+ sock->fd = sock_exec(getenv("LIBSMB_PROG"));
+ return sock->fd != -1;
+ }
+
+ mem_ctx = talloc_init("cli_sock_connect_byname");
+ if (!mem_ctx) return False;
+
+ name = talloc_strdup(mem_ctx, host);
+
+ /* allow hostnames of the form NAME#xx and do a netbios lookup */
+ if ((p = strchr(name, '#'))) {
+ name_type = strtol(p+1, NULL, 16);
+ *p = 0;
+ }
+
+ if (!resolve_name(mem_ctx, name, &ip, name_type)) {
+ talloc_destroy(mem_ctx);
+ return False;
+ }
+
+ talloc_destroy(mem_ctx);
+
+ return cli_sock_connect(sock, &ip, port);
+}