strace/syslog.c
Dmitry V. Levin a940d1a60f printstr: rename to printstrn, add printstr as a thin wrapper
As about half of all printstr uses cases are invocations with the last
argument set to -1, create a dedicated function for this use case.

* defs.h (printstr): Rename to printstrn.  All callers updated.
(printstr): New static inline function.  All callers updated.
2016-12-25 11:32:45 +00:00

79 lines
2.4 KiB
C

/*
* Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
enum {
SYSLOG_ACTION_CLOSE = 0,
SYSLOG_ACTION_OPEN,
SYSLOG_ACTION_READ,
SYSLOG_ACTION_READ_ALL,
SYSLOG_ACTION_READ_CLEAR,
SYSLOG_ACTION_CLEAR,
SYSLOG_ACTION_CONSOLE_OFF,
SYSLOG_ACTION_CONSOLE_ON,
SYSLOG_ACTION_CONSOLE_LEVEL,
SYSLOG_ACTION_SIZE_UNREAD,
SYSLOG_ACTION_SIZE_BUFFER
};
#include "xlat/syslog_action_type.h"
SYS_FUNC(syslog)
{
int type = tcp->u_arg[0];
if (entering(tcp)) {
/* type */
printxval(syslog_action_type, type, "SYSLOG_ACTION_???");
tprints(", ");
}
switch (type) {
case SYSLOG_ACTION_READ:
case SYSLOG_ACTION_READ_ALL:
case SYSLOG_ACTION_READ_CLEAR:
if (entering(tcp))
return 0;
break;
default:
printaddr(tcp->u_arg[1]);
tprintf(", %lu", tcp->u_arg[2]);
return RVAL_DECODED;
}
/* bufp */
if (syserror(tcp))
printaddr(tcp->u_arg[1]);
else
printstrn(tcp, tcp->u_arg[1], tcp->u_rval);
/* len */
tprintf(", %d", (int) tcp->u_arg[2]);
return 0;
}