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iw4x-client/deps/libtommath/demo/mtest_opponent.c
Ahrimdon 9a56906be7 Add dependencies locally
2024-03-07 05:13:50 -05:00

442 lines
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C
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#include "shared.h"
#ifdef LTM_MTEST_REAL_RAND
#define LTM_MTEST_RAND_SEED time(NULL)
#else
#define LTM_MTEST_RAND_SEED 23
#endif
#define DRAW(a) do{ ndraw(&(a), #a); }while(0)
/*
Get tokens. It is just a very(!) simple fgets(3) that does not keep line endings.
Implementation follows along "man 3 fgets", some of which is quoted.
*/
static int s_mp_get_token(char *s, int size, FILE *stream)
{
char *s_bar = s;
int c;
bool eol_hit = false;
/* "fgets [...] reads in at most one less than size characters from stream" */
while (--size) {
/* "Reading stops after an EOF or a newline." We stop only for EOF here */
if ((c = fgetc(stream)) == EOF) {
/* "Returns [...] NULL on error or when end of file occurs while no characters have been read" */
if ((s_bar == s) || (ferror(stream) != 0)) {
return -1;
}
break;
}
/* Ignore line-breaks but keep reading to get them out of the stream-buffer */
if ((c == '\n') || (c == '\r')) {
eol_hit = true;
continue;
}
/* Stop reading after linebreak */
if (eol_hit) {
/* We already read the character after the linebreak, put it back */
ungetc(c, stream);
break;
}
*s_bar++ = c;
}
if (size == 0) return -2;
/* "A terminating null byte ('\0') is stored after the last character in the buffer" */
*s_bar = '\0';
return 0;
}
#define TMP_(r,l) r ## _ ## l
#define TMP(r,l) TMP_(r,l)
#define GET_TOKEN(str, stream) \
do { \
int TMP(ret,__LINE__) = s_mp_get_token((str), sizeof(str), (stream)); \
if (TMP(ret,__LINE__) < 0) { fprintf(stderr, "\n%d: s_mp_get_token failed with error %d\n", __LINE__, TMP(ret,__LINE__)); goto LBL_ERR; } \
} while(0)
static int mtest_opponent(void)
{
char cmd[4096];
char buf[4096];
int ix;
unsigned rr;
mp_int a, b, c, d, e, f;
unsigned long expt_n, add_n, sub_n, mul_n, div_n, sqr_n, mul2d_n, div2d_n,
gcd_n, lcm_n, inv_n, div2_n, mul2_n, add_d_n, sub_d_n;
srand(LTM_MTEST_RAND_SEED);
if (mp_init_multi(&a, &b, &c, &d, &e, &f, NULL)!= MP_OKAY)
return EXIT_FAILURE;
div2_n = mul2_n = inv_n = expt_n = lcm_n = gcd_n = add_n =
sub_n = mul_n = div_n = sqr_n = mul2d_n = div2d_n = add_d_n = sub_d_n = 0;
#ifndef MP_FIXED_CUTOFFS
/* force KARA and TOOM to enable despite cutoffs */
MP_SQR_KARATSUBA_CUTOFF = MP_MUL_KARATSUBA_CUTOFF = 8;
MP_SQR_TOOM_CUTOFF = MP_MUL_TOOM_CUTOFF = 16;
#endif
for (;;) {
/* randomly clear and re-init one variable, this has the effect of trimming the alloc space */
switch (abs(rand()) % 7) {
case 0:
mp_clear(&a);
DO(mp_init(&a));
break;
case 1:
mp_clear(&b);
DO(mp_init(&b));
break;
case 2:
mp_clear(&c);
DO(mp_init(&c));
break;
case 3:
mp_clear(&d);
DO(mp_init(&d));
break;
case 4:
mp_clear(&e);
DO(mp_init(&e));
break;
case 5:
mp_clear(&f);
DO(mp_init(&f));
break;
case 6:
break; /* don't clear any */
}
printf("%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu/%4lu ",
add_n, sub_n, mul_n, div_n, sqr_n, mul2d_n, div2d_n, gcd_n, lcm_n,
expt_n, inv_n, div2_n, mul2_n, add_d_n, sub_d_n);
GET_TOKEN(cmd, stdin);
printf("%-6s ]\r", cmd);
fflush(stdout);
if (strcmp(cmd, "mul2d") == 0) {
++mul2d_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
sscanf(buf, "%u", &rr);
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_mul_2d(&a, (int)rr, &a));
a.sign = b.sign;
if (mp_cmp(&a, &b) != MP_EQ) {
printf("mul2d failed, rr == %u\n", rr);
DRAW(a);
DRAW(b);
goto LBL_ERR;
}
} else if (strcmp(cmd, "div2d") == 0) {
++div2d_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
sscanf(buf, "%u", &rr);
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_div_2d(&a, (int)rr, &a, &e));
a.sign = b.sign;
if ((a.used == b.used) && (a.used == 0)) {
a.sign = b.sign = MP_ZPOS;
}
if (mp_cmp(&a, &b) != MP_EQ) {
printf("div2d failed, rr == %u\n", rr);
DRAW(a);
DRAW(b);
goto LBL_ERR;
}
} else if (strcmp(cmd, "add") == 0) {
++add_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_copy(&a, &d));
DO(mp_add(&d, &b, &d));
if (mp_cmp(&c, &d) != MP_EQ) {
printf("add %lu failure!\n", add_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
/* test the sign/unsigned storage functions */
rr = (unsigned)mp_sbin_size(&c);
DO(mp_to_sbin(&c, (uint8_t *) cmd, (size_t)rr, NULL));
memset(cmd + rr, rand() & 0xFF, sizeof(cmd) - rr);
DO(mp_from_sbin(&d, (uint8_t *) cmd, (size_t)rr));
if (mp_cmp(&c, &d) != MP_EQ) {
printf("mp_signed_bin failure!\n");
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
rr = (unsigned)mp_ubin_size(&c);
DO(mp_to_ubin(&c, (uint8_t *) cmd, (size_t)rr, NULL));
memset(cmd + rr, rand() & 0xFF, sizeof(cmd) - rr);
DO(mp_from_ubin(&d, (uint8_t *) cmd, (size_t)rr));
if (mp_cmp_mag(&c, &d) != MP_EQ) {
printf("mp_unsigned_bin failure!\n");
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
} else if (strcmp(cmd, "sub") == 0) {
++sub_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_copy(&a, &d));
DO(mp_sub(&d, &b, &d));
if (mp_cmp(&c, &d) != MP_EQ) {
printf("sub %lu failure!\n", sub_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
} else if (strcmp(cmd, "mul") == 0) {
++mul_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_copy(&a, &d));
DO(mp_mul(&d, &b, &d));
if (mp_cmp(&c, &d) != MP_EQ) {
printf("mul %lu failure!\n", mul_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
} else if (strcmp(cmd, "div") == 0) {
++div_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&d, buf, 64));
DO(mp_div(&a, &b, &e, &f));
if ((mp_cmp(&c, &e) != MP_EQ) || (mp_cmp(&d, &f) != MP_EQ)) {
printf("div %lu %d, %d, failure!\n", div_n, mp_cmp(&c, &e),
mp_cmp(&d, &f));
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
DRAW(e);
DRAW(f);
goto LBL_ERR;
}
} else if (strcmp(cmd, "sqr") == 0) {
++sqr_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_copy(&a, &c));
DO(mp_sqr(&c, &c));
if (mp_cmp(&b, &c) != MP_EQ) {
printf("sqr %lu failure!\n", sqr_n);
DRAW(a);
DRAW(b);
DRAW(c);
goto LBL_ERR;
}
} else if (strcmp(cmd, "gcd") == 0) {
++gcd_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_copy(&a, &d));
DO(mp_gcd(&d, &b, &d));
d.sign = c.sign;
if (mp_cmp(&c, &d) != MP_EQ) {
printf("gcd %lu failure!\n", gcd_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
} else if (strcmp(cmd, "lcm") == 0) {
++lcm_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_copy(&a, &d));
DO(mp_lcm(&d, &b, &d));
d.sign = c.sign;
if (mp_cmp(&c, &d) != MP_EQ) {
printf("lcm %lu failure!\n", lcm_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
goto LBL_ERR;
}
} else if (strcmp(cmd, "expt") == 0) {
++expt_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&d, buf, 64));
DO(mp_copy(&a, &e));
DO(mp_exptmod(&e, &b, &c, &e));
if (mp_cmp(&d, &e) != MP_EQ) {
printf("expt %lu failure!\n", expt_n);
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
DRAW(e);
goto LBL_ERR;
}
} else if (strcmp(cmd, "invmod") == 0) {
++inv_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&c, buf, 64));
DO(mp_invmod(&a, &b, &d));
DO(mp_mulmod(&d, &a, &b, &e));
if (mp_cmp_d(&e, 1u) != MP_EQ) {
printf("inv [wrong value from MPI?!] failure\n");
DRAW(a);
DRAW(b);
DRAW(c);
DRAW(d);
DRAW(e);
DO(mp_gcd(&a, &b, &e));
DRAW(e);
goto LBL_ERR;
}
} else if (strcmp(cmd, "div2") == 0) {
++div2_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_div_2(&a, &c));
if (mp_cmp(&c, &b) != MP_EQ) {
printf("div_2 %lu failure\n", div2_n);
DRAW(a);
DRAW(b);
DRAW(c);
goto LBL_ERR;
}
} else if (strcmp(cmd, "mul2") == 0) {
++mul2_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_mul_2(&a, &c));
if (mp_cmp(&c, &b) != MP_EQ) {
printf("mul_2 %lu failure\n", mul2_n);
DRAW(a);
DRAW(b);
DRAW(c);
goto LBL_ERR;
}
} else if (strcmp(cmd, "add_d") == 0) {
++add_d_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
sscanf(buf, "%d", &ix);
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_add_d(&a, (mp_digit)ix, &c));
if (mp_cmp(&b, &c) != MP_EQ) {
printf("add_d %lu failure\n", add_d_n);
DRAW(a);
DRAW(b);
DRAW(c);
printf("d == %d\n", ix);
goto LBL_ERR;
}
} else if (strcmp(cmd, "sub_d") == 0) {
++sub_d_n;
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&a, buf, 64));
GET_TOKEN(buf, stdin);
sscanf(buf, "%d", &ix);
GET_TOKEN(buf, stdin);
DO(mp_read_radix(&b, buf, 64));
DO(mp_sub_d(&a, (mp_digit)ix, &c));
if (mp_cmp(&b, &c) != MP_EQ) {
printf("sub_d %lu failure\n", sub_d_n);
DRAW(a);
DRAW(b);
DRAW(c);
printf("d == %d\n", ix);
goto LBL_ERR;
}
} else if (strcmp(cmd, "exit") == 0) {
printf("\nokay, exiting now\n");
break;
}
}
mp_clear_multi(&a, &b, &c, &d, &e, &f, NULL);
printf("\n");
return 0;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, &e, &f, NULL);
printf("\n");
return EXIT_FAILURE;
}
int main(void)
{
print_header();
return mtest_opponent();
}
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