vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include "test_helpers.h"
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int main(void) {
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long x_l, x_m;
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double x_d;
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long seedval = 0xcafebeef;
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unsigned short seed[3] = {0xfedc, 0xba98, 0x7654};
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unsigned short xsubi[3] = {0xabcd, 0xef42, 0x5678};
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unsigned short lcong48_params[7] = {0x0123, 0x4567, 0x89ab, 0xcdef, 0x4242, 0xf000, 0xbaaa};
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unsigned short xsubi_from_seed48[3] = {0, 0, 0};
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/* Test uninitialized behavior */
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printf("lrand48 (uninitialized):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test different output types with same seed, builtin X_i and
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* default multiplier and addend */
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srand48(seedval);
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printf("drand48 (seeded with srand48):");
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for (int i = 0; i < 10; i++)
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{
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x_d = drand48();
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printf(" %lf", x_d);
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}
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printf("\n");
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srand48(seedval);
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printf("lrand48 (seeded with srand48):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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srand48(seedval);
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printf("mrand48 (seeded with srand48):");
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for (int i = 0; i < 10; i++)
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{
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x_m = mrand48();
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printf(" %ld", x_m);
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}
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printf("\n");
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/* Test corresponding functions taking user-supplied X_i, with
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* default multiplier and addend */
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printf("erand48:");
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for (int i = 0; i < 10; i++)
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{
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x_d = erand48(xsubi);
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printf(" %lf", x_d);
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}
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printf("\n");
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printf("nrand48:");
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for (int i = 0; i < 10; i++)
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{
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x_l = nrand48(xsubi);
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printf(" %ld", x_l);
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}
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printf("\n");
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printf("jrand48:");
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for (int i = 0; i < 10; i++)
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{
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x_l = jrand48(xsubi);
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test seed48() "stashing" behavior. */
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unsigned short *seed48_return = seed48(seed);
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printf("seed48_return: [%x, %x, %x]\n",
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seed48_return[0], seed48_return[1], seed48_return[2]);
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/* Test seeding behavior of seed48() */
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printf("lrand48 (seeded with seed48):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test restore from seed48()'s "stashed" value */
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xsubi_from_seed48[0] = seed48_return[0];
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xsubi_from_seed48[1] = seed48_return[1];
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xsubi_from_seed48[2] = seed48_return[2];
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printf("xsubi restored froom seed48 return value: [%x, %x, %x]\n",
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xsubi_from_seed48[0], xsubi_from_seed48[1], xsubi_from_seed48[2]);
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printf("nrand48 (from xsubi value returned by seed48):");
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for (int i = 0; i < 10; i++)
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{
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x_l = nrand48(xsubi_from_seed48);
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test behavior with all-user-defined parameters */
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lcong48(lcong48_params);
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printf("lrand48 (with parameters from lcong48):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test multiplier- and addend-restoring behavior of srand48() */
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srand48(seedval);
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printf("lrand48 (seeded with srand48 after lcong48 call):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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/* Test multiplier- and addend-restoring behavior of seed48() */
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lcong48(lcong48_params);
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seed48(seed);
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printf("lrand48 (seeded with seed48 after lcong48 call):");
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for (int i = 0; i < 10; i++)
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{
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x_l = lrand48();
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printf(" %ld", x_l);
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}
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printf("\n");
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}
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