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use exec for proxycommand

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This commit is contained in:
Matt Johnston 2015-12-18 21:20:46 +08:00
parent 20bdf3a5b1
commit 4c4aa502d4
2 changed files with 10 additions and 2 deletions
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9
cli-main.c
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@ -152,12 +152,19 @@ static void exec_proxy_cmd(void *user_data_cmd) {
#ifdef ENABLE_CLI_PROXYCMD
static void cli_proxy_cmd(int *sock_in, int *sock_out, pid_t *pid_out) {
char * ex_cmd = NULL;
size_t ex_cmdlen;
int ret;
fill_passwd(cli_opts.own_user);
ret = spawn_command(exec_proxy_cmd, cli_opts.proxycmd,
ex_cmdlen = strlen(cli_opts.proxycmd) + 6; /* "exec " + command + '\0' */
ex_cmd = m_malloc(ex_cmdlen);
snprintf(ex_cmd, ex_cmdlen, "exec %s", cli_opts.proxycmd);
ret = spawn_command(exec_proxy_cmd, ex_cmd,
sock_out, sock_in, NULL, pid_out);
m_free(ex_cmd);
if (ret == DROPBEAR_FAILURE) {
dropbear_exit("Failed running proxy command");
*sock_in = *sock_out = -1;

3
dbclient.1
View File

@ -114,7 +114,8 @@ Disconnect the session if no traffic is transmitted or received for \fIidle_time
.B \-J \fIproxy_command
Use the standard input/output of the program \fIproxy_command\fR rather than using
a normal TCP connection. A hostname should be still be provided, as this is used for
comparing saved hostkeys.
comparing saved hostkeys. This command will be executed as "exec proxy_command ..." with the
default shell.
.TP
.B \-B \fIendhost:endport
"Netcat-alike" mode, where Dropbear will connect to the given host, then create a