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/* $OpenBSD: cmd-run-shell.c,v 1.28 2015/04/24 22:19:36 nicm Exp $ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
* Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Runs a command without a window.
*/
enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmd_q *);
void cmd_run_shell_callback(struct job *);
void cmd_run_shell_free(void *);
void cmd_run_shell_print(struct job *, const char *);
const struct cmd_entry cmd_run_shell_entry = {
"run-shell", "run",
"bt:", 1, 1,
"[-b] " CMD_TARGET_PANE_USAGE " shell-command",
0,
cmd_run_shell_exec
};
struct cmd_run_shell_data {
char *cmd;
struct cmd_q *cmdq;
int bflag;
int wp_id;
};
void
cmd_run_shell_print(struct job *job, const char *msg)
{
struct cmd_run_shell_data *cdata = job->data;
struct window_pane *wp = NULL;
if (cdata->wp_id != -1)
wp = window_pane_find_by_id(cdata->wp_id);
if (wp == NULL) {
cmdq_print(cdata->cmdq, "%s", msg);
return;
}
if (window_pane_set_mode(wp, &window_copy_mode) == 0)
window_copy_init_for_output(wp);
if (wp->mode == &window_copy_mode)
window_copy_add(wp, "%s", msg);
}
enum cmd_retval
cmd_run_shell_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct cmd_run_shell_data *cdata;
char *shellcmd;
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);
cdata = xmalloc(sizeof *cdata);
cdata->cmd = shellcmd;
cdata->bflag = args_has(args, 'b');
cdata->wp_id = wp != NULL ? (int) wp->id : -1;
cdata->cmdq = cmdq;
cmdq->references++;
job_run(shellcmd, s, cwd, cmd_run_shell_callback, cmd_run_shell_free,
cdata);
if (cdata->bflag)
return (CMD_RETURN_NORMAL);
return (CMD_RETURN_WAIT);
}
void
cmd_run_shell_callback(struct job *job)
{
struct cmd_run_shell_data *cdata = job->data;
struct cmd_q *cmdq = cdata->cmdq;
char *cmd, *msg, *line;
size_t size;
int retcode;
u_int lines;
if (cmdq->dead)
return;
cmd = cdata->cmd;
lines = 0;
do {
if ((line = evbuffer_readline(job->event->input)) != NULL) {
cmd_run_shell_print(job, line);
free(line);
lines++;
}
} while (line != NULL);
size = EVBUFFER_LENGTH(job->event->input);
if (size != 0) {
line = xmalloc(size + 1);
memcpy(line, EVBUFFER_DATA(job->event->input), size);
line[size] = '\0';
cmd_run_shell_print(job, line);
lines++;
free(line);
}
msg = NULL;
if (WIFEXITED(job->status)) {
if ((retcode = WEXITSTATUS(job->status)) != 0)
xasprintf(&msg, "'%s' returned %d", cmd, retcode);
} else if (WIFSIGNALED(job->status)) {
retcode = WTERMSIG(job->status);
xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
}
if (msg != NULL)
cmd_run_shell_print(job, msg);
free(msg);
}
void
cmd_run_shell_free(void *data)
{
struct cmd_run_shell_data *cdata = data;
struct cmd_q *cmdq = cdata->cmdq;
if (!cmdq_free(cmdq) && !cdata->bflag)
cmdq_continue(cmdq);
free(cdata->cmd);
free(cdata);
}
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