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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) 1999-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include <sys/resource.h>
#include "xstring.h"
#include "xlat/resources.h"
static void
print_rlim64_t(uint64_t lim) {
const char *str = NULL;
if (lim == UINT64_MAX)
str = "RLIM64_INFINITY";
else if (lim > 1024 && lim % 1024 == 0) {
static char buf[sizeof(lim) * 3 + sizeof("*1024")];
xsprintf(buf, "%" PRIu64 "*1024", lim / 1024);
str = buf;
}
if (!str || xlat_verbose(xlat_verbosity) != XLAT_STYLE_ABBREV)
tprintf("%" PRIu64, lim);
if (!str || xlat_verbose(xlat_verbosity) == XLAT_STYLE_RAW)
return;
(xlat_verbose(xlat_verbosity) == XLAT_STYLE_VERBOSE
? tprints_comment : tprints)(str);
}
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)) {
tprints("{rlim_cur=");
print_rlim64_t(rlim.rlim_cur);
tprints(", rlim_max=");
print_rlim64_t(rlim.rlim_max);
tprints("}");
}
}
#if !defined(current_wordsize) || current_wordsize == 4
static void
print_rlim32_t(uint32_t lim) {
const char *str = NULL;
if (lim == UINT32_MAX)
str = "RLIM_INFINITY";
else if (lim > 1024 && lim % 1024 == 0) {
static char buf[sizeof(lim) * 3 + sizeof("*1024")];
xsprintf(buf, "%" PRIu32 "*1024", lim / 1024);
str = buf;
}
if (!str || xlat_verbose(xlat_verbosity) != XLAT_STYLE_ABBREV)
tprintf("%" PRIu32, lim);
if (!str || xlat_verbose(xlat_verbosity) == XLAT_STYLE_RAW)
return;
(xlat_verbose(xlat_verbosity) == XLAT_STYLE_VERBOSE
? tprints_comment : tprints)(str);
}
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)) {
tprints("{rlim_cur=");
print_rlim32_t(rlim.rlim_cur);
tprints(", rlim_max=");
print_rlim32_t(rlim.rlim_max);
tprints("}");
}
}
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)) {
printpid(tcp, tcp->u_arg[0], PT_TGID);
tprints(", ");
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"
static void
priority_print_who(struct tcb *tcp, int which, int who)
{
switch (which)
{
case PRIO_PROCESS:
printpid(tcp, who, PT_TGID);
break;
case PRIO_PGRP:
printpid(tcp, who, PT_PGID);
break;
default:
tprintf("%d", who);
break;
}
}
SYS_FUNC(getpriority)
{
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprints(", ");
priority_print_who(tcp, tcp->u_arg[0], tcp->u_arg[1]);
return RVAL_DECODED;
}
SYS_FUNC(setpriority)
{
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprints(", ");
priority_print_who(tcp, tcp->u_arg[0], tcp->u_arg[1]);
tprintf(", %d", (int) tcp->u_arg[2]);
return RVAL_DECODED;
}
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