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120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/* $Id: cmd-if-shell.c,v 1.6 2009-10-12 00:29:03 tcunha Exp $ */
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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 <string.h>
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#include "tmux.h"
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/*
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* Executes a tmux command if a shell command returns true.
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*/
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int cmd_if_shell_exec(struct cmd *, struct cmd_ctx *);
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void cmd_if_shell_callback(struct job *);
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void cmd_if_shell_free(void *);
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const struct cmd_entry cmd_if_shell_entry = {
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"if-shell", "if",
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"shell-command command",
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CMD_ARG2, 0,
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cmd_target_init,
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cmd_target_parse,
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cmd_if_shell_exec,
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cmd_target_free,
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cmd_target_print
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};
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struct cmd_if_shell_data {
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char *cmd;
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struct cmd_ctx ctx;
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};
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int
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cmd_if_shell_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_target_data *data = self->data;
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struct cmd_if_shell_data *cdata;
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struct job *job;
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cdata = xmalloc(sizeof *cdata);
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cdata->cmd = xstrdup(data->arg2);
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memcpy(&cdata->ctx, ctx, sizeof cdata->ctx);
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if (ctx->cmdclient != NULL)
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ctx->cmdclient->references++;
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if (ctx->curclient != NULL)
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ctx->curclient->references++;
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job = job_add(NULL, NULL,
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data->arg, cmd_if_shell_callback, cmd_if_shell_free, cdata);
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job_run(job);
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return (1); /* don't let client exit */
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}
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void
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cmd_if_shell_callback(struct job *job)
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{
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struct cmd_if_shell_data *cdata = job->data;
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struct cmd_ctx *ctx = &cdata->ctx;
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struct cmd_list *cmdlist;
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char *cause;
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if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0) {
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job_free(job); /* calls cmd_if_shell_free */
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return;
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}
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if (cmd_string_parse(cdata->cmd, &cmdlist, &cause) != 0) {
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if (cause != NULL) {
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ctx->error(ctx, "%s", cause);
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xfree(cause);
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}
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return;
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}
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if (cmd_list_exec(cmdlist, ctx) < 0) {
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cmd_list_free(cmdlist);
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return;
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}
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cmd_list_free(cmdlist);
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}
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void
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cmd_if_shell_free(void *data)
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{
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struct cmd_if_shell_data *cdata = data;
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struct cmd_ctx *ctx = &cdata->ctx;
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if (ctx->cmdclient != NULL) {
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ctx->cmdclient->references--;
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server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
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}
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if (ctx->curclient != NULL)
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ctx->curclient->references--;
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xfree(cdata->cmd);
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xfree(cdata);
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}
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