/* $Id$ */ /* * 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" /* * Executes a tmux command if a shell command returns true or false. */ enum cmd_retval cmd_if_shell_exec(struct cmd *, struct cmd_ctx *); void cmd_if_shell_callback(struct job *); void cmd_if_shell_free(void *); const struct cmd_entry cmd_if_shell_entry = { "if-shell", "if", "", 2, 3, "shell-command command [command]", 0, NULL, NULL, cmd_if_shell_exec }; struct cmd_if_shell_data { char *cmd_if; char *cmd_else; struct cmd_ctx *ctx; }; enum cmd_retval cmd_if_shell_exec(struct cmd *self, struct cmd_ctx *ctx) { struct args *args = self->args; struct cmd_if_shell_data *cdata; const char *shellcmd = args->argv[0]; cdata = xmalloc(sizeof *cdata); cdata->cmd_if = xstrdup(args->argv[1]); if (args->argc == 3) cdata->cmd_else = xstrdup(args->argv[2]); else cdata->cmd_else = NULL; cdata->ctx = ctx; cmd_ref_ctx(ctx); job_run(shellcmd, cmd_if_shell_callback, cmd_if_shell_free, cdata); return (CMD_RETURN_YIELD); /* don't let client exit */ } void cmd_if_shell_callback(struct job *job) { struct cmd_if_shell_data *cdata = job->data; struct cmd_ctx *ctx = cdata->ctx; struct cmd_list *cmdlist; char *cause, *cmd; if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0) { cmd = cdata->cmd_else; if (cmd == NULL) return; } else cmd = cdata->cmd_if; if (cmd_string_parse(cmd, &cmdlist, &cause) != 0) { if (cause != NULL) { ctx->error(ctx, "%s", cause); free(cause); } return; } cmd_list_exec(cmdlist, ctx); cmd_list_free(cmdlist); } void cmd_if_shell_free(void *data) { struct cmd_if_shell_data *cdata = data; struct cmd_ctx *ctx = cdata->ctx; if (ctx->cmdclient != NULL) ctx->cmdclient->flags |= CLIENT_EXIT; cmd_free_ctx(ctx); free(cdata->cmd_else); free(cdata->cmd_if); free(cdata); }