Mercurial > dropbear
diff cli-main.c @ 1208:fb58cf341951
Client: kill proxy command when exiting application.
| author | Konstantin Tokarev <ktokarev@smartlabs.tv> |
|---|---|
| date | Thu, 03 Dec 2015 16:22:29 +0300 |
| parents | 23103e1e9548 |
| children | bf626d259eb1 |
line wrap: on
line diff
--- a/cli-main.c Mon Nov 30 21:13:03 2015 +0800 +++ b/cli-main.c Thu Dec 03 16:22:29 2015 +0300 @@ -36,7 +36,8 @@ static void cli_dropbear_log(int priority, const char* format, va_list param); #ifdef ENABLE_CLI_PROXYCMD -static void cli_proxy_cmd(int *sock_in, int *sock_out); +static void cli_proxy_cmd(int *sock_in, int *sock_out, pid_t *pid_out); +static void killchild(int signo); #endif #if defined(DBMULTI_dbclient) || !defined(DROPBEAR_MULTI) @@ -66,10 +67,16 @@ dropbear_exit("signal() error"); } + pid_t proxy_cmd_pid = 0; #ifdef ENABLE_CLI_PROXYCMD if (cli_opts.proxycmd) { - cli_proxy_cmd(&sock_in, &sock_out); + cli_proxy_cmd(&sock_in, &sock_out, &proxy_cmd_pid); m_free(cli_opts.proxycmd); + if (signal(SIGINT, killchild) == SIG_ERR || + signal(SIGTERM, killchild) == SIG_ERR || + signal(SIGHUP, killchild) == SIG_ERR) { + dropbear_exit("signal() error"); + } } else #endif { @@ -77,7 +84,7 @@ sock_in = sock_out = -1; } - cli_session(sock_in, sock_out, progress); + cli_session(sock_in, sock_out, progress, proxy_cmd_pid); /* not reached */ return -1; @@ -132,16 +139,24 @@ } #ifdef ENABLE_CLI_PROXYCMD -static void cli_proxy_cmd(int *sock_in, int *sock_out) { +static void cli_proxy_cmd(int *sock_in, int *sock_out, pid_t *pid_out) { int ret; fill_passwd(cli_opts.own_user); ret = spawn_command(exec_proxy_cmd, cli_opts.proxycmd, - sock_out, sock_in, NULL, NULL); + sock_out, sock_in, NULL, pid_out); if (ret == DROPBEAR_FAILURE) { dropbear_exit("Failed running proxy command"); *sock_in = *sock_out = -1; } } + +static void killchild(int signo) +{ + kill_proxy_command(); + if (signo) + _exit(1); + exit(1); +} #endif /* ENABLE_CLI_PROXYCMD */