mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-11-27 13:40:14 +00:00
01ecf332ff
* Initial import of wear-leveling algorithm. * Alignment. * Docs tweaks. * Lock/unlock. * Update quantum/wear_leveling/wear_leveling_internal.h Co-authored-by: Stefan Kerkmann <karlk90@pm.me> * More tests, fix issue with consolidation when unlocked. * More tests. * Review comments. * Add plumbing for FNV1a. * Another test checking that checksum mismatch clears the cache. * Check that the write log still gets played back. Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
592 lines
15 KiB
C
592 lines
15 KiB
C
/*
|
|
* fnv_64 - 64 bit Fowler/Noll/Vo hash of a buffer or string
|
|
*
|
|
* @(#) $Revision: 5.5 $
|
|
* @(#) $Id: fnv64.c,v 5.5 2012/03/21 01:38:12 chongo Exp $
|
|
* @(#) $Source: /usr/local/src/cmd/fnv/RCS/fnv64.c,v $
|
|
*
|
|
***
|
|
*
|
|
* Fowler/Noll/Vo hash
|
|
*
|
|
* The basis of this hash algorithm was taken from an idea sent
|
|
* as reviewer comments to the IEEE POSIX P1003.2 committee by:
|
|
*
|
|
* Phong Vo (http://www.research.att.com/info/kpv/)
|
|
* Glenn Fowler (http://www.research.att.com/~gsf/)
|
|
*
|
|
* In a subsequent ballot round:
|
|
*
|
|
* Landon Curt Noll (http://www.isthe.com/chongo/)
|
|
*
|
|
* improved on their algorithm. Some people tried this hash
|
|
* and found that it worked rather well. In an EMail message
|
|
* to Landon, they named it the ``Fowler/Noll/Vo'' or FNV hash.
|
|
*
|
|
* FNV hashes are designed to be fast while maintaining a low
|
|
* collision rate. The FNV speed allows one to quickly hash lots
|
|
* of data while maintaining a reasonable collision rate. See:
|
|
*
|
|
* http://www.isthe.com/chongo/tech/comp/fnv/index.html
|
|
*
|
|
* for more details as well as other forms of the FNV hash.
|
|
*
|
|
***
|
|
*
|
|
* Please do not copyright this code. This code is in the public domain.
|
|
*
|
|
* LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
|
|
* EVENT SHALL LANDON CURT NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
|
|
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* By:
|
|
* chongo <Landon Curt Noll> /\oo/\
|
|
* http://www.isthe.com/chongo/
|
|
*
|
|
* Share and Enjoy! :-)
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include "longlong.h"
|
|
#include "fnv.h"
|
|
|
|
#define WIDTH 64 /* bit width of hash */
|
|
|
|
#define BUF_SIZE (32*1024) /* number of bytes to hash at a time */
|
|
|
|
static char *usage =
|
|
"usage: %s [-b bcnt] [-m] [-s arg] [-t code] [-v] [arg ...]\n"
|
|
"\n"
|
|
"\t-b bcnt\tmask off all but the lower bcnt bits (default 64)\n"
|
|
"\t-m\tmultiple hashes, one per line for each arg\n"
|
|
"\t-s\thash arg as a string (ignoring terminating NUL bytes)\n"
|
|
"\t-t code\t test hash code: (0 ==> generate test vectors\n"
|
|
"\t\t\t\t 1 ==> validate against FNV test vectors)\n"
|
|
"\t-v\tverbose mode, print arg after hash (implies -m)\n"
|
|
"\targ\tstring (if -s was given) or filename (default stdin)\n"
|
|
"\n"
|
|
"\tNOTE: Programs that begin with fnv0 implement the FNV-0 hash.\n"
|
|
"\t The FNV-0 hash is historic FNV algorithm that is now deprecated.\n"
|
|
"\n"
|
|
"\tSee http://www.isthe.com/chongo/tech/comp/fnv/index.html for more info.\n"
|
|
"\n"
|
|
"\t@(#) FNV Version: %s\n";
|
|
static char *program; /* our name */
|
|
|
|
|
|
/*
|
|
* test_fnv64 - test the FNV64 hash
|
|
*
|
|
* given:
|
|
* hash_type type of FNV hash to test
|
|
* init_hval initial hash value
|
|
* mask lower bit mask
|
|
* v_flag 1 => print test failure info on stderr
|
|
* code 0 ==> generate FNV test vectors
|
|
* 1 ==> validate against FNV test vectors
|
|
*
|
|
* returns: 0 ==> OK, else test vector failure number
|
|
*/
|
|
static int
|
|
test_fnv64(enum fnv_type hash_type, Fnv64_t init_hval,
|
|
Fnv64_t mask, int v_flag, int code)
|
|
{
|
|
struct test_vector *t; /* FNV test vestor */
|
|
Fnv64_t hval; /* current hash value */
|
|
int tstnum; /* test vector that failed, starting at 1 */
|
|
|
|
/*
|
|
* print preamble if generating test vectors
|
|
*/
|
|
if (code == 0) {
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
printf("struct fnv0_64_test_vector fnv0_64_vector[] = {\n");
|
|
break;
|
|
case FNV1_64:
|
|
printf("struct fnv1_64_test_vector fnv1_64_vector[] = {\n");
|
|
break;
|
|
case FNV1a_64:
|
|
printf("struct fnv1a_64_test_vector fnv1a_64_vector[] = {\n");
|
|
break;
|
|
default:
|
|
unknown_hash_type(program, hash_type, 12); /* exit(12) */
|
|
/*NOTREACHED*/
|
|
}
|
|
}
|
|
|
|
/*
|
|
* loop thru all test vectors
|
|
*/
|
|
for (t = fnv_test_str, tstnum = 1; t->buf != NULL; ++t, ++tstnum) {
|
|
|
|
/*
|
|
* compute the FNV hash
|
|
*/
|
|
hval = init_hval;
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
case FNV1_64:
|
|
hval = fnv_64_buf(t->buf, t->len, hval);
|
|
break;
|
|
case FNV1a_64:
|
|
hval = fnv_64a_buf(t->buf, t->len, hval);
|
|
break;
|
|
default:
|
|
unknown_hash_type(program, hash_type, 13); /* exit(13) */
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/*
|
|
* print the vector
|
|
*/
|
|
#if defined(HAVE_64BIT_LONG_LONG)
|
|
/*
|
|
* HAVE_64BIT_LONG_LONG testing
|
|
*/
|
|
switch (code) {
|
|
case 0: /* generate the test vector */
|
|
printf(" { &fnv_test_str[%d], (Fnv64_t) 0x%016llxULL },\n",
|
|
tstnum-1, hval & mask);
|
|
break;
|
|
|
|
case 1: /* validate against test vector */
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
if ((hval&mask) != (fnv0_64_vector[tstnum-1].fnv0_64 & mask)) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv0_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%016llx != generated: 0x%016llx\n",
|
|
program,
|
|
(hval&mask),
|
|
(fnv0_64_vector[tstnum-1].fnv0_64 & mask));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
case FNV1_64:
|
|
if ((hval&mask) != (fnv1_64_vector[tstnum-1].fnv1_64 & mask)) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv1_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%016llx != generated: 0x%016llx\n",
|
|
program,
|
|
(hval&mask),
|
|
(fnv1_64_vector[tstnum-1].fnv1_64 & mask));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
case FNV1a_64:
|
|
if ((hval&mask) != (fnv1a_64_vector[tstnum-1].fnv1a_64 &mask)) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv1a_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%016llx != generated: 0x%016llx\n",
|
|
program,
|
|
(hval&mask),
|
|
(fnv1a_64_vector[tstnum-1].fnv1a_64 & mask));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "%s: -m %d not implemented yet\n", program, code);
|
|
exit(14);
|
|
}
|
|
#else /* HAVE_64BIT_LONG_LONG */
|
|
/*
|
|
* non HAVE_64BIT_LONG_LONG testing
|
|
*/
|
|
switch (code) {
|
|
case 0: /* generate the test vector */
|
|
printf(" { &fnv_test_str[%d], "
|
|
"(Fnv64_t) {0x%08lxUL, 0x%08lxUL} },\n",
|
|
tstnum-1,
|
|
(hval.w32[0] & mask.w32[0]),
|
|
(hval.w32[1] & mask.w32[1]));
|
|
break;
|
|
|
|
case 1: /* validate against test vector */
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
if (((hval.w32[0] & mask.w32[0]) !=
|
|
(fnv0_64_vector[tstnum-1].fnv0_64.w32[0] &
|
|
mask.w32[0])) &&
|
|
((hval.w32[1] & mask.w32[1]) !=
|
|
(fnv0_64_vector[tstnum-1].fnv0_64.w32[1] &
|
|
mask.w32[1]))) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv0_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%08llx%08llx != "
|
|
"generated: 0x%08llx%08llx\n",
|
|
program,
|
|
(hval.w32[0] & mask.w32[0]),
|
|
(hval.w32[1] & mask.w32[1]),
|
|
((fnv0_64_vector[tstnum-1].fnv0_64.w32[0] &
|
|
mask.w32[0])),
|
|
((fnv0_64_vector[tstnum-1].fnv0_64.w32[1] &
|
|
mask.w32[1])));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
case FNV1_64:
|
|
if (((hval.w32[0] & mask.w32[0]) !=
|
|
(fnv1_64_vector[tstnum-1].fnv1_64.w32[0] &
|
|
mask.w32[0])) &&
|
|
((hval.w32[1] & mask.w32[1]) !=
|
|
(fnv1_64_vector[tstnum-1].fnv1_64.w32[1] &
|
|
mask.w32[1]))) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv1_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%08llx%08llx != "
|
|
"generated: 0x%08llx%08llx\n",
|
|
program,
|
|
(hval.w32[0] & mask.w32[0]),
|
|
(hval.w32[1] & mask.w32[1]),
|
|
((fnv1_64_vector[tstnum-1].fnv1_64.w32[0] &
|
|
mask.w32[0])),
|
|
((fnv1_64_vector[tstnum-1].fnv1_64.w32[1] &
|
|
mask.w32[1])));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
case FNV1a_64:
|
|
if (((hval.w32[0] & mask.w32[0]) !=
|
|
(fnv1a_64_vector[tstnum-1].fnv1a_64.w32[0] &
|
|
mask.w32[0])) &&
|
|
((hval.w32[1] & mask.w32[1]) !=
|
|
(fnv1a_64_vector[tstnum-1].fnv1a_64.w32[1] &
|
|
mask.w32[1]))) {
|
|
if (v_flag) {
|
|
fprintf(stderr, "%s: failed fnv1a_64 test # %d\n",
|
|
program, tstnum);
|
|
fprintf(stderr, "%s: test # 1 is 1st test\n", program);
|
|
fprintf(stderr,
|
|
"%s: expected 0x%08llx%08llx != "
|
|
"generated: 0x%08llx%08llx\n",
|
|
program,
|
|
(hval.w32[0] & mask.w32[0]),
|
|
(hval.w32[1] & mask.w32[1]),
|
|
((fnv1a_64_vector[tstnum-1].fnv1a_64.w32[0] &
|
|
mask.w32[0])),
|
|
((fnv1a_64_vector[tstnum-1].fnv1a_64.w32[1] &
|
|
mask.w32[1])));
|
|
}
|
|
return tstnum;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "%s: -m %d not implemented yet\n", program, code);
|
|
exit(15);
|
|
}
|
|
#endif /* HAVE_64BIT_LONG_LONG */
|
|
}
|
|
|
|
/*
|
|
* print completion if generating test vectors
|
|
*/
|
|
if (code == 0) {
|
|
#if defined(HAVE_64BIT_LONG_LONG)
|
|
printf(" { NULL, (Fnv64_t) 0 }\n");
|
|
#else /* HAVE_64BIT_LONG_LONG */
|
|
printf(" { NULL, (Fnv64_t) {0,0} }\n");
|
|
#endif /* HAVE_64BIT_LONG_LONG */
|
|
printf("};\n");
|
|
}
|
|
|
|
/*
|
|
* no failures, return code 0 ==> all OK
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* main - the main function
|
|
*
|
|
* See the above usage for details.
|
|
*/
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char buf[BUF_SIZE+1]; /* read buffer */
|
|
int readcnt; /* number of characters written */
|
|
Fnv64_t hval; /* current hash value */
|
|
int s_flag = 0; /* 1 => -s was given, hash args as strings */
|
|
int m_flag = 0; /* 1 => print multiple hashes, one per arg */
|
|
int v_flag = 0; /* 1 => verbose hash print */
|
|
int b_flag = WIDTH; /* -b flag value */
|
|
int t_flag = -1; /* FNV test vector code (0=>print, 1=>test) */
|
|
enum fnv_type hash_type = FNV_NONE; /* type of FNV hash to perform */
|
|
Fnv64_t bmask; /* mask to apply to output */
|
|
extern char *optarg; /* option argument */
|
|
extern int optind; /* argv index of the next arg */
|
|
int fd; /* open file to process */
|
|
char *p;
|
|
int i;
|
|
|
|
/*
|
|
* parse args
|
|
*/
|
|
program = argv[0];
|
|
while ((i = getopt(argc, argv, "b:mst:v")) != -1) {
|
|
switch (i) {
|
|
case 'b': /* bcnt bit mask count */
|
|
b_flag = atoi(optarg);
|
|
break;
|
|
case 'm': /* print multiple hashes, one per arg */
|
|
m_flag = 1;
|
|
break;
|
|
case 's': /* hash args as strings */
|
|
s_flag = 1;
|
|
break;
|
|
case 't': /* FNV test vector code */
|
|
t_flag = atoi(optarg);
|
|
if (t_flag < 0 || t_flag > 1) {
|
|
fprintf(stderr, "%s: -t code must be 0 or 1\n", program);
|
|
fprintf(stderr, usage, program, FNV_VERSION);
|
|
exit(1);
|
|
}
|
|
m_flag = 1;
|
|
break;
|
|
case 'v': /* verbose hash print */
|
|
m_flag = 1;
|
|
v_flag = 1;
|
|
break;
|
|
default:
|
|
fprintf(stderr, usage, program, FNV_VERSION);
|
|
exit(1);
|
|
}
|
|
}
|
|
/* -t code incompatible with -b, -m and args */
|
|
if (t_flag >= 0) {
|
|
if (b_flag != WIDTH) {
|
|
fprintf(stderr, "%s: -t code incompatible with -b\n", program);
|
|
exit(2);
|
|
}
|
|
if (s_flag != 0) {
|
|
fprintf(stderr, "%s: -t code incompatible with -s\n", program);
|
|
exit(3);
|
|
}
|
|
if (optind < argc) {
|
|
fprintf(stderr, "%s: -t code incompatible args\n", program);
|
|
exit(4);
|
|
}
|
|
}
|
|
/* -s requires at least 1 arg */
|
|
if (s_flag && optind >= argc) {
|
|
fprintf(stderr, usage, program, FNV_VERSION);
|
|
exit(5);
|
|
}
|
|
/* limit -b values */
|
|
if (b_flag < 0 || b_flag > WIDTH) {
|
|
fprintf(stderr, "%s: -b bcnt: %d must be >= 0 and < %d\n",
|
|
program, b_flag, WIDTH);
|
|
exit(6);
|
|
}
|
|
#if defined(HAVE_64BIT_LONG_LONG)
|
|
if (b_flag == WIDTH) {
|
|
bmask = (Fnv64_t)0xffffffffffffffffULL;
|
|
} else {
|
|
bmask = (Fnv64_t)((1ULL << b_flag) - 1ULL);
|
|
}
|
|
#else /* HAVE_64BIT_LONG_LONG */
|
|
if (b_flag == WIDTH) {
|
|
bmask.w32[0] = 0xffffffffUL;
|
|
bmask.w32[1] = 0xffffffffUL;
|
|
} else if (b_flag >= WIDTH/2) {
|
|
bmask.w32[0] = 0xffffffffUL;
|
|
bmask.w32[1] = ((1UL << (b_flag-(WIDTH/2))) - 1UL);
|
|
} else {
|
|
bmask.w32[0] = ((1UL << b_flag) - 1UL);
|
|
bmask.w32[1] = 0UL;
|
|
}
|
|
#endif /* HAVE_64BIT_LONG_LONG */
|
|
|
|
/*
|
|
* start with the initial basis depending on the hash type
|
|
*/
|
|
p = strrchr(program, '/');
|
|
if (p == NULL) {
|
|
p = program;
|
|
} else {
|
|
++p;
|
|
}
|
|
if (strcmp(p, "fnv064") == 0 || strcmp(p, "no64bit_fnv064") == 0) {
|
|
/* using non-recommended FNV-0 and zero initial basis */
|
|
hval = FNV0_64_INIT;
|
|
hash_type = FNV0_64;
|
|
} else if (strcmp(p, "fnv164") == 0 || strcmp(p, "no64bit_fnv164") == 0) {
|
|
/* using FNV-1 and non-zero initial basis */
|
|
hval = FNV1_64_INIT;
|
|
hash_type = FNV1_64;
|
|
} else if (strcmp(p, "fnv1a64") == 0 || strcmp(p, "no64bit_fnv1a64") == 0) {
|
|
/* start with the FNV-1a initial basis */
|
|
hval = FNV1A_64_INIT;
|
|
hash_type = FNV1a_64;
|
|
} else {
|
|
fprintf(stderr, "%s: unknown program name, unknown hash type\n",
|
|
program);
|
|
exit(7);
|
|
}
|
|
|
|
/*
|
|
* FNV test vector processing, if needed
|
|
*/
|
|
if (t_flag >= 0) {
|
|
int code; /* test vector that failed, starting at 1 */
|
|
|
|
/*
|
|
* perform all tests
|
|
*/
|
|
code = test_fnv64(hash_type, hval, bmask, v_flag, t_flag);
|
|
|
|
/*
|
|
* evaluate the tests
|
|
*/
|
|
if (code == 0) {
|
|
if (v_flag) {
|
|
printf("passed\n");
|
|
}
|
|
exit(0);
|
|
} else {
|
|
printf("failed vector (1 is 1st test): %d\n", code);
|
|
exit(8);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* string hashing
|
|
*/
|
|
if (s_flag) {
|
|
|
|
/* hash any other strings */
|
|
for (i=optind; i < argc; ++i) {
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
case FNV1_64:
|
|
hval = fnv_64_str(argv[i], hval);
|
|
break;
|
|
case FNV1a_64:
|
|
hval = fnv_64a_str(argv[i], hval);
|
|
break;
|
|
default:
|
|
unknown_hash_type(program, hash_type, 9); /* exit(9) */
|
|
/*NOTREACHED*/
|
|
}
|
|
if (m_flag) {
|
|
print_fnv64(hval, bmask, v_flag, argv[i]);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* file hashing
|
|
*/
|
|
} else {
|
|
|
|
/*
|
|
* case: process only stdin
|
|
*/
|
|
if (optind >= argc) {
|
|
|
|
/* case: process only stdin */
|
|
while ((readcnt = read(0, buf, BUF_SIZE)) > 0) {
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
case FNV1_64:
|
|
hval = fnv_64_buf(buf, readcnt, hval);
|
|
break;
|
|
case FNV1a_64:
|
|
hval = fnv_64a_buf(buf, readcnt, hval);
|
|
break;
|
|
default:
|
|
unknown_hash_type(program, hash_type, 10); /* exit(10) */
|
|
/*NOTREACHED*/
|
|
}
|
|
}
|
|
if (m_flag) {
|
|
print_fnv64(hval, bmask, v_flag, "(stdin)");
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
* process any other files
|
|
*/
|
|
for (i=optind; i < argc; ++i) {
|
|
|
|
/* open the file */
|
|
fd = open(argv[i], O_RDONLY);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "%s: unable to open file: %s\n",
|
|
program, argv[i]);
|
|
exit(4);
|
|
}
|
|
|
|
/* hash the file */
|
|
while ((readcnt = read(fd, buf, BUF_SIZE)) > 0) {
|
|
switch (hash_type) {
|
|
case FNV0_64:
|
|
case FNV1_64:
|
|
hval = fnv_64_buf(buf, readcnt, hval);
|
|
break;
|
|
case FNV1a_64:
|
|
hval = fnv_64a_buf(buf, readcnt, hval);
|
|
break;
|
|
default:
|
|
unknown_hash_type(program, hash_type, 11);/* exit(11) */
|
|
/*NOTREACHED*/
|
|
}
|
|
}
|
|
|
|
/* finish processing the file */
|
|
if (m_flag) {
|
|
print_fnv64(hval, bmask, v_flag, argv[i]);
|
|
}
|
|
close(fd);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* report hash and exit
|
|
*/
|
|
if (!m_flag) {
|
|
print_fnv64(hval, bmask, v_flag, "");
|
|
}
|
|
return 0; /* exit(0); */
|
|
}
|