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run-shell command to run a shell command without opening a window, sending

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stdout to output mode.
This commit is contained in:
Nicholas Marriott
2009-09-20 19:15:01 +00:00
parent 105ce36792
commit 14ebcab5b0
5 changed files with 108 additions and 1 deletions
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96
cmd-run-shell.c Normal file
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/* $OpenBSD$ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.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 *);
const struct cmd_entry cmd_run_shell_entry = {
"run-shell", "run",
"command",
CMD_ARG1, 0,
cmd_target_init,
cmd_target_parse,
cmd_run_shell_exec,
cmd_target_free,
cmd_target_print
};
int
cmd_run_shell_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_target_data *data = self->data;
FILE *fp;
char *buf, *lbuf, *msg;
size_t len;
int has_output, ret, status;
if ((fp = popen(data->arg, "r")) == NULL) {
ctx->error(ctx, "popen error");
return (-1);
}
has_output = 0;
lbuf = NULL;
while ((buf = fgetln(fp, &len)) != NULL) {
if (buf[len - 1] == '\n')
buf[len - 1] = '\0';
else {
lbuf = xmalloc(len + 1);
memcpy(lbuf, buf, len);
lbuf[len] = '\0';
buf = lbuf;
}
ctx->print(ctx, "%s", buf);
has_output = 1;
}
if (lbuf != NULL)
xfree(lbuf);
msg = NULL;
status = pclose(fp);
if (WIFEXITED(status)) {
if ((ret = WEXITSTATUS(status)) == 0)
return (0);
xasprintf(&msg, "'%s' returned %d", data->arg, ret);
} else if (WIFSIGNALED(status)) {
xasprintf(
&msg, "'%s' terminated by signal %d", data->arg,
WTERMSIG(status));
}
if (msg != NULL) {
if (has_output)
ctx->print(ctx, "%s", msg);
else
ctx->info(ctx, "%s", msg);
xfree(msg);
}
return (0);
}