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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 1999-2018 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 <sys/resource.h>
#include "xstring.h"
#include "xlat/resources.h"
static const char *
sprint_rlim64(uint64_t lim)
{
static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
if (lim == UINT64_MAX)
return "RLIM64_INFINITY";
if (lim > 1024 && lim % 1024 == 0)
xsprintf(buf, "%" PRIu64 "*1024", lim / 1024);
else
xsprintf(buf, "%" PRIu64, lim);
return buf;
}
static void
print_rlimit64(struct tcb *const tcp, const kernel_ulong_t addr)
{
struct rlimit_64 {
uint64_t rlim_cur;
uint64_t rlim_max;
} rlim;
if (!umove_or_printaddr(tcp, addr, &rlim)) {
tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
}
}
#if !defined(current_wordsize) || current_wordsize == 4
static const char *
sprint_rlim32(uint32_t lim)
{
static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
if (lim == UINT32_MAX)
return "RLIM_INFINITY";
if (lim > 1024 && lim % 1024 == 0)
xsprintf(buf, "%" PRIu32 "*1024", lim / 1024);
else
xsprintf(buf, "%" PRIu32, lim);
return buf;
}
static void
print_rlimit32(struct tcb *const tcp, const kernel_ulong_t addr)
{
struct rlimit_32 {
uint32_t rlim_cur;
uint32_t rlim_max;
} rlim;
if (!umove_or_printaddr(tcp, addr, &rlim)) {
tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
}
}
static void
decode_rlimit(struct tcb *const tcp, const kernel_ulong_t addr)
{
/*
* i386 is the only personality on X86_64 and X32
* with 32-bit rlim_t.
* When current_personality is X32, current_wordsize
* equals to 4 but rlim_t is 64-bit.
*/
if (current_klongsize == 4)
print_rlimit32(tcp, addr);
else
print_rlimit64(tcp, addr);
}
#else /* defined(current_wordsize) && current_wordsize != 4 */
# define decode_rlimit print_rlimit64
#endif
SYS_FUNC(getrlimit)
{
if (entering(tcp)) {
printxval(resources, tcp->u_arg[0], "RLIMIT_???");
tprints(", ");
} else {
decode_rlimit(tcp, tcp->u_arg[1]);
}
return 0;
}
SYS_FUNC(setrlimit)
{
printxval(resources, tcp->u_arg[0], "RLIMIT_???");
tprints(", ");
decode_rlimit(tcp, tcp->u_arg[1]);
return RVAL_DECODED;
}
SYS_FUNC(prlimit64)
{
if (entering(tcp)) {
tprintf("%d, ", (int) tcp->u_arg[0]);
printxval(resources, tcp->u_arg[1], "RLIMIT_???");
tprints(", ");
print_rlimit64(tcp, tcp->u_arg[2]);
tprints(", ");
} else {
print_rlimit64(tcp, tcp->u_arg[3]);
}
return 0;
}
#include "xlat/usagewho.h"
SYS_FUNC(getrusage)
{
if (entering(tcp)) {
printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
tprints(", ");
} else
printrusage(tcp, tcp->u_arg[1]);
return 0;
}
#ifdef ALPHA
SYS_FUNC(osf_getrusage)
{
if (entering(tcp)) {
printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
tprints(", ");
} else
printrusage32(tcp, tcp->u_arg[1]);
return 0;
}
#endif /* ALPHA */
#include "xlat/priorities.h"
SYS_FUNC(getpriority)
{
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprintf(", %d", (int) tcp->u_arg[1]);
return RVAL_DECODED;
}
SYS_FUNC(setpriority)
{
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprintf(", %d, %d", (int) tcp->u_arg[1], (int) tcp->u_arg[2]);
return RVAL_DECODED;
}
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