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/* $Id: cmd-run-shell.c 2553 2011-07-09 09:42:33Z tcunha $ */
/*
* 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 <string.h>
#include "tmux.h"
/*
* Runs a command without a window.
*/
int cmd_run_shell_exec(struct cmd *, struct cmd_ctx *);
void cmd_run_shell_callback(struct job *);
void cmd_run_shell_free(void *);
const struct cmd_entry cmd_run_shell_entry = {
"run-shell", "run",
"", 1, 1,
"command",
0,
NULL,
NULL,
cmd_run_shell_exec
};
struct cmd_run_shell_data {
char *cmd;
struct cmd_ctx ctx;
};
int
cmd_run_shell_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct args *args = self->args;
struct cmd_run_shell_data *cdata;
const char *shellcmd = args->argv[0];
cdata = xmalloc(sizeof *cdata);
cdata->cmd = xstrdup(args->argv[0]);
memcpy(&cdata->ctx, ctx, sizeof cdata->ctx);
if (ctx->cmdclient != NULL)
ctx->cmdclient->references++;
if (ctx->curclient != NULL)
ctx->curclient->references++;
job_run(shellcmd, cmd_run_shell_callback, cmd_run_shell_free, cdata);
return (1); /* don't let client exit */
}
void
cmd_run_shell_callback(struct job *job)
{
struct cmd_run_shell_data *cdata = job->data;
struct cmd_ctx *ctx = &cdata->ctx;
char *cmd, *msg, *line;
size_t size;
int retcode;
u_int lines;
if (ctx->cmdclient != NULL && ctx->cmdclient->flags & CLIENT_DEAD)
return;
if (ctx->curclient != NULL && ctx->curclient->flags & CLIENT_DEAD)
return;
lines = 0;
do {
if ((line = evbuffer_readline(job->event->input)) != NULL) {
ctx->print(ctx, "%s", 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';
ctx->print(ctx, "%s", line);
lines++;
xfree(line);
}
cmd = cdata->cmd;
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) {
if (lines != 0)
ctx->print(ctx, "%s", msg);
else
ctx->info(ctx, "%s", msg);
xfree(msg);
}
}
void
cmd_run_shell_free(void *data)
{
struct cmd_run_shell_data *cdata = data;
struct cmd_ctx *ctx = &cdata->ctx;
if (ctx->cmdclient != NULL) {
ctx->cmdclient->references--;
ctx->cmdclient->flags |= CLIENT_EXIT;
}
if (ctx->curclient != NULL)
ctx->curclient->references--;
xfree(cdata->cmd);
xfree(cdata);
}
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