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#ifdef STRACE_UID_SIZE
# if STRACE_UID_SIZE != 16
# error invalid STRACE_UID_SIZE
# endif
# define SIZEIFY(x) SIZEIFY_(x,STRACE_UID_SIZE)
# define SIZEIFY_(x,size) SIZEIFY__(x,size)
# define SIZEIFY__(x,size) x ## size
# define printuid SIZEIFY(printuid)
# define sys_chown SIZEIFY(sys_chown)
# define sys_fchown SIZEIFY(sys_fchown)
# define sys_getgroups SIZEIFY(sys_getgroups)
# define sys_getresuid SIZEIFY(sys_getresuid)
# define sys_getuid SIZEIFY(sys_getuid)
# define sys_setfsuid SIZEIFY(sys_setfsuid)
# define sys_setgroups SIZEIFY(sys_setgroups)
# define sys_setresuid SIZEIFY(sys_setresuid)
# define sys_setreuid SIZEIFY(sys_setreuid)
# define sys_setuid SIZEIFY(sys_setuid)
#endif /* STRACE_UID_SIZE */
#include "defs.h"
#ifdef STRACE_UID_SIZE
# if !NEED_UID16_PARSERS
# undef STRACE_UID_SIZE
# endif
#else
# define STRACE_UID_SIZE 32
#endif
#ifdef STRACE_UID_SIZE
# undef uid_t
# define uid_t uid_t_(STRACE_UID_SIZE)
# define uid_t_(size) uid_t__(size)
# define uid_t__(size) uint ## size ## _t
SYS_FUNC(getuid)
{
if (exiting(tcp))
tcp->u_rval = (uid_t) tcp->u_rval;
return RVAL_UDECIMAL;
}
SYS_FUNC(setfsuid)
{
if (entering(tcp))
tprintf("%u", (uid_t) tcp->u_arg[0]);
else
tcp->u_rval = (uid_t) tcp->u_rval;
return RVAL_UDECIMAL;
}
SYS_FUNC(setuid)
{
if (entering(tcp)) {
tprintf("%u", (uid_t) tcp->u_arg[0]);
}
return 0;
}
static void
get_print_uid(struct tcb *tcp, const char *prefix, const long addr)
{
uid_t uid;
if (umove(tcp, addr, &uid) < 0)
tprintf("%s%#lx", prefix, addr);
else
tprintf("%s[%u]", prefix, uid);
}
SYS_FUNC(getresuid)
{
if (exiting(tcp)) {
if (syserror(tcp)) {
tprintf("%#lx, %#lx, %#lx", tcp->u_arg[0],
tcp->u_arg[1], tcp->u_arg[2]);
} else {
get_print_uid(tcp, "", tcp->u_arg[0]);
get_print_uid(tcp, ", ", tcp->u_arg[1]);
get_print_uid(tcp, ", ", tcp->u_arg[2]);
}
}
return 0;
}
SYS_FUNC(setreuid)
{
if (entering(tcp)) {
printuid("", tcp->u_arg[0]);
printuid(", ", tcp->u_arg[1]);
}
return 0;
}
SYS_FUNC(setresuid)
{
if (entering(tcp)) {
printuid("", tcp->u_arg[0]);
printuid(", ", tcp->u_arg[1]);
printuid(", ", tcp->u_arg[2]);
}
return 0;
}
SYS_FUNC(chown)
{
if (entering(tcp)) {
printpath(tcp, tcp->u_arg[0]);
printuid(", ", tcp->u_arg[1]);
printuid(", ", tcp->u_arg[2]);
}
return 0;
}
SYS_FUNC(fchown)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
printuid(", ", tcp->u_arg[1]);
printuid(", ", tcp->u_arg[2]);
}
return 0;
}
void
printuid(const char *text, const unsigned int uid)
{
if ((unsigned int) -1 == uid || (uid_t) -1 == uid)
tprintf("%s-1", text);
else
tprintf("%s%u", text, uid);
}
SYS_FUNC(setgroups)
{
if (entering(tcp)) {
unsigned long len, size, start, cur, end, abbrev_end;
uid_t gid;
int failed = 0;
len = tcp->u_arg[0];
tprintf("%lu, ", len);
if (len == 0) {
tprints("[]");
return 0;
}
start = tcp->u_arg[1];
if (start == 0) {
tprints("NULL");
return 0;
}
size = len * sizeof(gid);
end = start + size;
if (!verbose(tcp) || size / sizeof(gid) != len || end < start) {
tprintf("%#lx", start);
return 0;
}
if (abbrev(tcp)) {
abbrev_end = start + max_strlen * sizeof(gid);
if (abbrev_end < start)
abbrev_end = end;
} else {
abbrev_end = end;
}
tprints("[");
for (cur = start; cur < end; cur += sizeof(gid)) {
if (cur > start)
tprints(", ");
if (cur >= abbrev_end) {
tprints("...");
break;
}
if (umoven(tcp, cur, sizeof(gid), &gid) < 0) {
tprints("?");
failed = 1;
break;
}
tprintf("%u", (unsigned int) gid);
}
tprints("]");
if (failed)
tprintf(" %#lx", tcp->u_arg[1]);
}
return 0;
}
SYS_FUNC(getgroups)
{
unsigned long len;
if (entering(tcp)) {
len = tcp->u_arg[0];
tprintf("%lu, ", len);
} else {
unsigned long size, start, cur, end, abbrev_end;
uid_t gid;
int failed = 0;
start = tcp->u_arg[1];
if (start == 0) {
tprints("NULL");
return 0;
}
len = tcp->u_rval;
if (len == 0) {
tprints("[]");
return 0;
}
size = len * sizeof(gid);
end = start + size;
if (!verbose(tcp) || tcp->u_arg[0] == 0 ||
size / sizeof(gid) != len || end < start) {
tprintf("%#lx", start);
return 0;
}
if (abbrev(tcp)) {
abbrev_end = start + max_strlen * sizeof(gid);
if (abbrev_end < start)
abbrev_end = end;
} else {
abbrev_end = end;
}
tprints("[");
for (cur = start; cur < end; cur += sizeof(gid)) {
if (cur > start)
tprints(", ");
if (cur >= abbrev_end) {
tprints("...");
break;
}
if (umoven(tcp, cur, sizeof(gid), &gid) < 0) {
tprints("?");
failed = 1;
break;
}
tprintf("%u", (unsigned int) gid);
}
tprints("]");
if (failed)
tprintf(" %#lx", tcp->u_arg[1]);
}
return 0;
}
#endif /* STRACE_UID_SIZE */
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