static void tmate_client_exec_cmd(struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
char *cause;
int client_id = unpack_int(uk);
char *cmd_str = unpack_string(uk);
if (cmd_string_parse(cmd_str, &cmdlist, NULL, 0, &cause) != 0) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
/* error messages land in cfg_causes */
ARRAY_FREE(&cfg_causes);
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
if (!ARRAY_EMPTY(&cfg_causes)) {
cause = ARRAY_ITEM(&cfg_causes, 0);
tmate_failed_cmd(client_id, cause);
free(cause);
ARRAY_FREE(&cfg_causes);
}
out:
free(cmd_str);
}
static void handle_exec_cmd_str(__unused struct tmate_session *session,
struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
char *cause;
u_int i;
int client_id = unpack_int(uk);
char *cmd_str = unpack_string(uk);
if (cmd_string_parse(cmd_str, &cmdlist, NULL, 0, &cause) != 0) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist, NULL);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
/* error messages land in cfg_causes */
for (i = 0; i < cfg_ncauses; i++) {
tmate_failed_cmd(client_id, cfg_causes[i]);
free(cfg_causes[i]);
}
free(cfg_causes);
cfg_causes = NULL;
cfg_ncauses = 0;
out:
free(cmd_str);
}
void
cmd_if_shell_callback(struct job *job)
{
struct cmd_if_shell_data *cdata = job->data;
struct cmd_q *cmdq = cdata->cmdq, *cmdq1;
struct cmd_list *cmdlist;
char *cause, *cmd;
if (cmdq->flags & CMD_Q_DEAD)
return;
if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
cmd = cdata->cmd_else;
else
cmd = cdata->cmd_if;
if (cmd == NULL)
return;
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(cmdq, "%s", cause);
free(cause);
}
return;
}
cmdq1 = cmdq_new(cmdq->client);
cmdq1->emptyfn = cmd_if_shell_done;
cmdq1->data = cdata;
cdata->references++;
cmdq_run(cmdq1, cmdlist, &cdata->mouse);
cmd_list_free(cmdlist);
}
int
cmd_confirm_before_callback(void *data, const char *s)
{
struct cmd_confirm_before_data *cdata = data;
struct client *c = cdata->client;
struct cmd_list *cmdlist;
char *cause;
if (c->flags & CLIENT_DEAD)
return (0);
if (s == NULL || *s == '\0')
return (0);
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
return (0);
if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(c->cmdq, "%s", cause);
free(cause);
}
return (0);
}
cmdq_run(c->cmdq, cmdlist);
cmd_list_free(cmdlist);
return (0);
}
static void handle_exec_cmd(__unused struct tmate_session *session,
struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
struct cmd *cmd;
char *cause;
u_int i;
unsigned int argc;
char **argv;
int client_id = unpack_int(uk);
argc = uk->argc;
argv = xmalloc(sizeof(char *) * argc);
for (i = 0; i < argc; i++)
argv[i] = unpack_string(uk);
cmd = cmd_parse(argc, argv, NULL, 0, &cause);
if (!cmd) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
cmdlist = xcalloc(1, sizeof *cmdlist);
cmdlist->references = 1;
TAILQ_INIT(&cmdlist->list);
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist, NULL);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
/* error messages land in cfg_causes */
for (i = 0; i < cfg_ncauses; i++) {
tmate_failed_cmd(client_id, cfg_causes[i]);
free(cfg_causes[i]);
}
free(cfg_causes);
cfg_causes = NULL;
cfg_ncauses = 0;
out:
cmd_free_argv(argc, argv);
}
/* Control input callback. Read lines and fire commands. */
void
control_callback(struct client *c, int closed, unused void *data)
{
char *line, *cause;
struct cmd_list *cmdlist;
struct cmd *cmd;
if (closed)
c->flags |= CLIENT_EXIT;
for (;;) {
line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
if (line == NULL)
break;
if (*line == '\0') { /* empty line exit */
c->flags |= CLIENT_EXIT;
break;
}
if (cmd_string_parse(line, &cmdlist, NULL, 0, &cause) != 0) {
c->cmdq->time = time(NULL);
c->cmdq->number++;
cmdq_guard(c->cmdq, "begin", 1);
control_write(c, "parse error: %s", cause);
cmdq_guard(c->cmdq, "error", 1);
free(cause);
} else {
TAILQ_FOREACH(cmd, &cmdlist->list, qentry)
cmd->flags |= CMD_CONTROL;
cmdq_run(c->cmdq, cmdlist);
cmd_list_free(cmdlist);
}
free(line);
}
}
enum cmd_retval
cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct cmd_if_shell_data *cdata;
char *shellcmd, *cmd, *cause;
struct cmd_list *cmdlist;
struct client *c;
struct session *s = NULL;
struct winlink *wl = NULL;
struct window_pane *wp = NULL;
struct format_tree *ft;
int cwd;
if (args_has(args, 't')) {
wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
cwd = wp->cwd;
} else {
c = cmd_find_client(cmdq, NULL, 1);
if (c != NULL && c->session != NULL) {
s = c->session;
wl = s->curw;
wp = wl->window->active;
}
if (cmdq->client != NULL && cmdq->client->session == NULL)
cwd = cmdq->client->cwd;
else if (s != NULL)
cwd = s->cwd;
else
cwd = -1;
}
ft = format_create();
format_defaults(ft, NULL, s, wl, wp);
shellcmd = format_expand(ft, args->argv[0]);
format_free(ft);
if (args_has(args, 'F')) {
cmd = NULL;
if (*shellcmd != '0' && *shellcmd != '\0')
cmd = args->argv[1];
else if (args->argc == 3)
cmd = args->argv[2];
if (cmd == NULL)
return (CMD_RETURN_NORMAL);
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(cmdq, "%s", cause);
free(cause);
}
return (CMD_RETURN_ERROR);
}
cmdq_run(cmdq, cmdlist, &cmdq->item->mouse);
cmd_list_free(cmdlist);
return (CMD_RETURN_NORMAL);
}
cdata = xmalloc(sizeof *cdata);
cdata->cmd_if = xstrdup(args->argv[1]);
if (args->argc == 3)
cdata->cmd_else = xstrdup(args->argv[2]);
else
cdata->cmd_else = NULL;
cdata->bflag = args_has(args, 'b');
cdata->cmdq = cmdq;
memcpy(&cdata->mouse, &cmdq->item->mouse, sizeof cdata->mouse);
cmdq->references++;
cdata->references = 1;
job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
cdata);
free(shellcmd);
if (cdata->bflag)
return (CMD_RETURN_NORMAL);
return (CMD_RETURN_WAIT);
}
