GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/tmux/control.c Lines: 0 35 0.0 %
Date: 2017-11-13 Branches: 0 10 0.0 %

Line Branch Exec Source
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/* $OpenBSD: control.c,v 1.20 2017/01/15 22:00:56 nicm Exp $ */
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/*
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 * Copyright (c) 2012 Nicholas Marriott <nicholas.marriott@gmail.com>
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 * Copyright (c) 2012 George Nachman <tmux@georgester.com>
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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 <event.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "tmux.h"
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/* Write a line. */
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void
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control_write(struct client *c, const char *fmt, ...)
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{
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	va_list		 ap;
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	va_start(ap, fmt);
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	evbuffer_add_vprintf(c->stdout_data, fmt, ap);
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	va_end(ap);
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	evbuffer_add(c->stdout_data, "\n", 1);
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	server_client_push_stdout(c);
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}
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/* Write a buffer, adding a terminal newline. Empties buffer. */
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void
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control_write_buffer(struct client *c, struct evbuffer *buffer)
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{
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	evbuffer_add_buffer(c->stdout_data, buffer);
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	evbuffer_add(c->stdout_data, "\n", 1);
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	server_client_push_stdout(c);
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}
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/* Control error callback. */
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static enum cmd_retval
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control_error(struct cmdq_item *item, void *data)
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{
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	struct client	*c = item->client;
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	char		*error = data;
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	cmdq_guard(item, "begin", 1);
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	control_write(c, "parse error: %s", error);
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	cmdq_guard(item, "error", 1);
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	free(error);
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	return (CMD_RETURN_NORMAL);
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}
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/* Control input callback. Read lines and fire commands. */
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void
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control_callback(struct client *c, int closed, __unused void *data)
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{
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	char			*line, *cause;
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	struct cmd_list		*cmdlist;
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	struct cmd		*cmd;
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	struct cmdq_item	*item;
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	if (closed)
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		c->flags |= CLIENT_EXIT;
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	for (;;) {
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		line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
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		if (line == NULL)
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			break;
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		if (*line == '\0') { /* empty line exit */
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			c->flags |= CLIENT_EXIT;
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			break;
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		}
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		cmdlist = cmd_string_parse(line, NULL, 0, &cause);
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		if (cmdlist == NULL) {
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			item = cmdq_get_callback(control_error, cause);
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			cmdq_append(c, item);
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		} else {
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			TAILQ_FOREACH(cmd, &cmdlist->list, qentry)
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				cmd->flags |= CMD_CONTROL;
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			item = cmdq_get_command(cmdlist, NULL, NULL, 0);
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			cmdq_append(c, item);
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			cmd_list_free(cmdlist);
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		}
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		free(line);
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	}
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}