strace/print_timespec.c
Dmitry V. Levin 56dd203511 print_timespec.c: use xsprintf instead of snprintf
* print_timespec.c: Include "xstring.h".
(sprint_timespec): Replace snprintf with xsprintf.
2018-01-07 00:05:42 +00:00

169 lines
4.1 KiB
C

/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2017 The strace developers.
* 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"
#include DEF_MPERS_TYPE(timespec_t)
typedef struct timespec timespec_t;
#include MPERS_DEFS
#include "xstring.h"
#ifndef UTIME_NOW
# define UTIME_NOW ((1l << 30) - 1l)
#endif
#ifndef UTIME_OMIT
# define UTIME_OMIT ((1l << 30) - 2l)
#endif
static const char timespec_fmt[] = "{tv_sec=%lld, tv_nsec=%llu}";
static void
print_timespec_t(const timespec_t *t)
{
tprintf(timespec_fmt, (long long) t->tv_sec,
zero_extend_signed_to_ull(t->tv_nsec));
}
static void
print_timespec_t_utime(const timespec_t *t)
{
switch (t->tv_nsec) {
case UTIME_NOW:
tprints("UTIME_NOW");
break;
case UTIME_OMIT:
tprints("UTIME_OMIT");
break;
default:
print_timespec_t(t);
tprints_comment(sprinttime_nsec(t->tv_sec,
zero_extend_signed_to_ull(t->tv_nsec)));
break;
}
}
MPERS_PRINTER_DECL(bool, print_struct_timespec_data_size,
const void *arg, const size_t size)
{
if (size < sizeof(timespec_t)) {
tprints("?");
return false;
}
print_timespec_t(arg);
return true;
}
MPERS_PRINTER_DECL(bool, print_struct_timespec_array_data_size,
const void *arg, const unsigned int nmemb,
const size_t size)
{
const timespec_t *ts = arg;
unsigned int i;
if (nmemb > size / sizeof(timespec_t)) {
tprints("?");
return false;
}
tprints("[");
for (i = 0; i < nmemb; i++) {
if (i)
tprints(", ");
print_timespec_t(&ts[i]);
}
tprints("]");
return true;
}
MPERS_PRINTER_DECL(void, print_timespec,
struct tcb *const tcp, const kernel_ulong_t addr)
{
timespec_t t;
if (umove_or_printaddr(tcp, addr, &t))
return;
print_timespec_t(&t);
}
MPERS_PRINTER_DECL(const char *, sprint_timespec,
struct tcb *const tcp, const kernel_ulong_t addr)
{
timespec_t t;
static char buf[sizeof(timespec_fmt) + 3 * sizeof(t)];
if (!addr) {
strcpy(buf, "NULL");
} else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
umove(tcp, addr, &t)) {
xsprintf(buf, "%#" PRI_klx, addr);
} else {
xsprintf(buf, timespec_fmt,
(long long) t.tv_sec,
zero_extend_signed_to_ull(t.tv_nsec));
}
return buf;
}
MPERS_PRINTER_DECL(void, print_timespec_utime_pair,
struct tcb *const tcp, const kernel_ulong_t addr)
{
timespec_t t[2];
if (umove_or_printaddr(tcp, addr, &t))
return;
tprints("[");
print_timespec_t_utime(&t[0]);
tprints(", ");
print_timespec_t_utime(&t[1]);
tprints("]");
}
MPERS_PRINTER_DECL(void, print_itimerspec,
struct tcb *const tcp, const kernel_ulong_t addr)
{
timespec_t t[2];
if (umove_or_printaddr(tcp, addr, &t))
return;
tprints("{it_interval=");
print_timespec_t(&t[0]);
tprints(", it_value=");
print_timespec_t(&t[1]);
tprints("}");
}