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18838fbc87
issue 3206.
281 lines
7.3 KiB
C
281 lines
7.3 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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* Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Runs a command without a window.
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*/
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static enum args_parse_type cmd_run_shell_args_parse(struct args *, u_int,
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char **);
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static enum cmd_retval cmd_run_shell_exec(struct cmd *,
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struct cmdq_item *);
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static void cmd_run_shell_timer(int, short, void *);
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static void cmd_run_shell_callback(struct job *);
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static void cmd_run_shell_free(void *);
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static void cmd_run_shell_print(struct job *, const char *);
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const struct cmd_entry cmd_run_shell_entry = {
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.name = "run-shell",
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.alias = "run",
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.args = { "bd:Ct:", 0, 1, cmd_run_shell_args_parse },
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.usage = "[-bC] [-d delay] " CMD_TARGET_PANE_USAGE " [shell-command]",
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.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
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.flags = 0,
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.exec = cmd_run_shell_exec
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};
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struct cmd_run_shell_data {
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struct client *client;
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char *cmd;
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struct args_command_state *state;
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char *cwd;
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struct cmdq_item *item;
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struct session *s;
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int wp_id;
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struct event timer;
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int flags;
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};
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static enum args_parse_type
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cmd_run_shell_args_parse(struct args *args, __unused u_int idx,
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__unused char **cause)
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{
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if (args_has(args, 'C'))
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return (ARGS_PARSE_COMMANDS_OR_STRING);
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return (ARGS_PARSE_STRING);
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}
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static void
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cmd_run_shell_print(struct job *job, const char *msg)
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{
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struct cmd_run_shell_data *cdata = job_get_data(job);
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struct window_pane *wp = NULL;
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struct cmd_find_state fs;
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struct window_mode_entry *wme;
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if (cdata->wp_id != -1)
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wp = window_pane_find_by_id(cdata->wp_id);
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if (wp == NULL && cdata->item != NULL && cdata->client != NULL)
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wp = server_client_get_pane(cdata->client);
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if (wp == NULL && cmd_find_from_nothing(&fs, 0) == 0)
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wp = fs.wp;
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if (wp == NULL)
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return;
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wme = TAILQ_FIRST(&wp->modes);
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if (wme == NULL || wme->mode != &window_view_mode)
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window_pane_set_mode(wp, NULL, &window_view_mode, NULL, NULL);
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window_copy_add(wp, 1, "%s", msg);
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}
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static enum cmd_retval
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cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
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{
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struct args *args = cmd_get_args(self);
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struct cmd_find_state *target = cmdq_get_target(item);
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struct cmd_run_shell_data *cdata;
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struct client *tc = cmdq_get_target_client(item);
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struct session *s = target->s;
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struct window_pane *wp = target->wp;
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const char *delay, *cmd;
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double d;
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struct timeval tv;
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char *end;
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int wait = !args_has(args, 'b');
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if ((delay = args_get(args, 'd')) != NULL) {
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d = strtod(delay, &end);
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if (*end != '\0') {
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cmdq_error(item, "invalid delay time: %s", delay);
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return (CMD_RETURN_ERROR);
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}
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} else if (args_count(args) == 0)
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return (CMD_RETURN_NORMAL);
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cdata = xcalloc(1, sizeof *cdata);
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if (!args_has(args, 'C')) {
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cmd = args_string(args, 0);
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if (cmd != NULL)
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cdata->cmd = format_single_from_target(item, cmd);
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} else {
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cdata->state = args_make_commands_prepare(self, item, 0, NULL,
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wait, 1);
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}
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if (args_has(args, 't') && wp != NULL)
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cdata->wp_id = wp->id;
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else
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cdata->wp_id = -1;
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if (wait) {
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cdata->client = cmdq_get_client(item);
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cdata->item = item;
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} else {
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cdata->client = tc;
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cdata->flags |= JOB_NOWAIT;
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}
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if (cdata->client != NULL)
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cdata->client->references++;
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cdata->cwd = xstrdup(server_client_get_cwd(cmdq_get_client(item), s));
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cdata->s = s;
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if (s != NULL)
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session_add_ref(s, __func__);
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evtimer_set(&cdata->timer, cmd_run_shell_timer, cdata);
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if (delay != NULL) {
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timerclear(&tv);
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tv.tv_sec = (time_t)d;
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tv.tv_usec = (d - (double)tv.tv_sec) * 1000000U;
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evtimer_add(&cdata->timer, &tv);
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} else
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event_active(&cdata->timer, EV_TIMEOUT, 1);
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if (!wait)
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return (CMD_RETURN_NORMAL);
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return (CMD_RETURN_WAIT);
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}
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static void
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cmd_run_shell_timer(__unused int fd, __unused short events, void* arg)
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{
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struct cmd_run_shell_data *cdata = arg;
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struct client *c = cdata->client;
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const char *cmd = cdata->cmd;
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struct cmdq_item *item = cdata->item, *new_item;
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struct cmd_list *cmdlist;
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char *error;
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if (cdata->state == NULL) {
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if (cmd == NULL) {
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if (cdata->item != NULL)
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cmdq_continue(cdata->item);
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cmd_run_shell_free(cdata);
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return;
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}
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if (job_run(cmd, 0, NULL, NULL, cdata->s, cdata->cwd, NULL,
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cmd_run_shell_callback, cmd_run_shell_free, cdata,
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cdata->flags, -1, -1) == NULL)
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cmd_run_shell_free(cdata);
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return;
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}
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cmdlist = args_make_commands(cdata->state, 0, NULL, &error);
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if (cmdlist == NULL) {
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if (cdata->item == NULL) {
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*error = toupper((u_char)*error);
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status_message_set(c, -1, 1, 0, "%s", error);
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} else
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cmdq_error(cdata->item, "%s", error);
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free(error);
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} else if (item == NULL) {
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new_item = cmdq_get_command(cmdlist, NULL);
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cmdq_append(c, new_item);
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} else {
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new_item = cmdq_get_command(cmdlist, cmdq_get_state(item));
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cmdq_insert_after(item, new_item);
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}
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if (cdata->item != NULL)
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cmdq_continue(cdata->item);
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cmd_run_shell_free(cdata);
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}
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static void
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cmd_run_shell_callback(struct job *job)
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{
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struct cmd_run_shell_data *cdata = job_get_data(job);
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struct bufferevent *event = job_get_event(job);
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struct cmdq_item *item = cdata->item;
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char *cmd = cdata->cmd, *msg = NULL, *line;
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size_t size;
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int retcode, status;
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do {
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line = evbuffer_readln(event->input, NULL, EVBUFFER_EOL_LF);
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if (line != NULL) {
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cmd_run_shell_print(job, line);
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free(line);
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}
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} while (line != NULL);
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size = EVBUFFER_LENGTH(event->input);
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if (size != 0) {
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line = xmalloc(size + 1);
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memcpy(line, EVBUFFER_DATA(event->input), size);
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line[size] = '\0';
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cmd_run_shell_print(job, line);
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free(line);
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}
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status = job_get_status(job);
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if (WIFEXITED(status)) {
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if ((retcode = WEXITSTATUS(status)) != 0)
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xasprintf(&msg, "'%s' returned %d", cmd, retcode);
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} else if (WIFSIGNALED(status)) {
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retcode = WTERMSIG(status);
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xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
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retcode += 128;
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} else
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retcode = 0;
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if (msg != NULL)
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cmd_run_shell_print(job, msg);
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free(msg);
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if (item != NULL) {
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if (cmdq_get_client(item) != NULL &&
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cmdq_get_client(item)->session == NULL)
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cmdq_get_client(item)->retval = retcode;
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cmdq_continue(item);
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}
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}
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static void
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cmd_run_shell_free(void *data)
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{
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struct cmd_run_shell_data *cdata = data;
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evtimer_del(&cdata->timer);
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if (cdata->s != NULL)
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session_remove_ref(cdata->s, __func__);
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if (cdata->client != NULL)
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server_client_unref(cdata->client);
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if (cdata->state != NULL)
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args_make_commands_free(cdata->state);
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free(cdata->cwd);
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free(cdata->cmd);
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free(cdata);
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}
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