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106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/* $OpenBSD$ */
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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;
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struct cmdq_item *item;
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struct cmd_parse_result *pr;
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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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pr = cmd_parse_from_string(line, NULL);
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switch (pr->status) {
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case CMD_PARSE_EMPTY:
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break;
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case CMD_PARSE_ERROR:
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item = cmdq_get_callback(control_error, pr->error);
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cmdq_append(c, item);
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break;
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case CMD_PARSE_SUCCESS:
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item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
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item->shared->flags |= CMDQ_SHARED_CONTROL;
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cmdq_append(c, item);
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cmd_list_free(pr->cmdlist);
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break;
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}
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free(line);
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}
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}
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