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/* $OpenBSD: control.c,v 1.2 2012/07/10 11:53:01 nicm Exp $ */
/*
* Copyright (c) 2012 Nicholas Marriott <nicm@users.sourceforge.net>
* Copyright (c) 2012 George Nachman <tmux@georgester.com>
*
* 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 <event.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
void printflike2 control_msg_error(struct cmd_ctx *, const char *, ...);
void printflike2 control_msg_print(struct cmd_ctx *, const char *, ...);
void printflike2 control_msg_info(struct cmd_ctx *, const char *, ...);
void printflike2 control_write(struct client *, const char *, ...);
/* Command error callback. */
void printflike2
control_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
{
struct client *c = ctx->curclient;
va_list ap;
va_start(ap, fmt);
evbuffer_add_vprintf(c->stdout_data, fmt, ap);
va_end(ap);
evbuffer_add(c->stdout_data, "\n", 1);
server_push_stdout(c);
}
/* Command print callback. */
void printflike2
control_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
{
struct client *c = ctx->curclient;
va_list ap;
va_start(ap, fmt);
evbuffer_add_vprintf(c->stdout_data, fmt, ap);
va_end(ap);
evbuffer_add(c->stdout_data, "\n", 1);
server_push_stdout(c);
}
/* Command info callback. */
void printflike2
control_msg_info(unused struct cmd_ctx *ctx, unused const char *fmt, ...)
{
}
/* Write a line. */
void printflike2
control_write(struct client *c, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
evbuffer_add_vprintf(c->stdout_data, fmt, ap);
va_end(ap);
evbuffer_add(c->stdout_data, "\n", 1);
server_push_stdout(c);
}
/* Control input callback. Read lines and fire commands. */
void
control_callback(struct client *c, int closed, unused void *data)
{
char *line, *cause;
struct cmd_ctx ctx;
struct cmd_list *cmdlist;
if (closed)
c->flags |= CLIENT_EXIT;
for (;;) {
line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
if (line == NULL)
break;
if (*line == '\0') { /* empty line exit */
c->flags |= CLIENT_EXIT;
break;
}
ctx.msgdata = NULL;
ctx.cmdclient = NULL;
ctx.curclient = c;
ctx.error = control_msg_error;
ctx.print = control_msg_print;
ctx.info = control_msg_info;
if (cmd_string_parse(line, &cmdlist, &cause) != 0) {
control_write(c, "%%error in line \"%s\": %s", line,
cause);
free(cause);
} else {
cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
}
free(line);
}
}
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