forked from osmocom/wireshark
![Bill Meier](/assets/img/avatar_default.png)
... to ensure that there are no potential issues with respect to editors limiting the number of lines scanned at the end of the file when checking for editor modelines. Change-Id: Ic85cbb108bb5159d6ec4116fea11f5eebb4e44a4 Reviewed-on: https://code.wireshark.org/review/4688 Reviewed-by: Bill Meier <wmeier@newsguy.com>
103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/* sync_pipe.h
|
|
* Low-level synchronization pipe routines for use by Wireshark/TShark
|
|
* and dumpcap
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
|
|
/** @file
|
|
*
|
|
* Low-level sync pipe interfaces.
|
|
*/
|
|
|
|
#ifndef __SYNC_PIPE_H__
|
|
#define __SYNC_PIPE_H__
|
|
|
|
|
|
/*
|
|
* Maximum length of sync pipe message data. Must be < 2^24, as the
|
|
* message length is 3 bytes.
|
|
* XXX - this must be large enough to handle a Really Big Filter
|
|
* Expression, as the error message for an incorrect filter expression
|
|
* is a bit larger than the filter expression.
|
|
*/
|
|
#define SP_MAX_MSG_LEN 4096
|
|
|
|
|
|
/* Size of buffer to hold decimal representation of
|
|
signed/unsigned 64-bit int */
|
|
#define SP_DECISIZE 20
|
|
|
|
/*
|
|
* Indications sent out on the sync pipe (from child to parent).
|
|
* We might want to switch to something like Thrift
|
|
* (http://thrift.apache.org/) or Protocol Buffers
|
|
* (http://code.google.com/p/protobuf-c/) if we ever need to use more
|
|
* complex messages.
|
|
*/
|
|
#define SP_FILE 'F' /* the name of the recently opened file */
|
|
#define SP_ERROR_MSG 'E' /* error message */
|
|
#define SP_BAD_FILTER 'B' /* error message for bad capture filter */
|
|
#define SP_PACKET_COUNT 'P' /* count of packets captured since last message */
|
|
#define SP_DROPS 'D' /* count of packets dropped in capture */
|
|
#define SP_SUCCESS 'S' /* success indication, no extra data */
|
|
/*
|
|
* Win32 only: Indications sent out on the signal pipe (from parent to child)
|
|
* (UNIX-like sends signals for this)
|
|
*/
|
|
#define SP_QUIT 'Q' /* "gracefully" capture quit message (SIGUSR1) */
|
|
|
|
/* write a single message header to the recipient pipe */
|
|
extern ssize_t
|
|
pipe_write_header(int pipe_fd, char indicator, int length);
|
|
|
|
/* write a message to the recipient pipe in the standard format
|
|
(3 digit message length (excluding length and indicator field),
|
|
1 byte message indicator and the rest is the message).
|
|
If msg is NULL, the message has only a length and indicator. */
|
|
extern void
|
|
pipe_write_block(int pipe_fd, char indicator, const char *msg);
|
|
|
|
/** the child encountered an error, notify the parent */
|
|
extern void
|
|
sync_pipe_errmsg_to_parent(int pipe_fd, const char *error_msg,
|
|
const char *secondary_error_msg);
|
|
|
|
/** Has the parent signalled the child to stop? */
|
|
#define SIGNAL_PIPE_CTRL_ID_NONE "none"
|
|
#ifdef _WIN32
|
|
#define SIGNAL_PIPE_FORMAT "\\\\.\\pipe\\wireshark.%s.signal"
|
|
#endif
|
|
|
|
#endif /* sync_pipe.h */
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|