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.
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
#include <time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "test_helpers.h"
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void print_tm(const struct tm *tm_ptr) {
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printf(" tm_sec = %d\n", tm_ptr->tm_sec);
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printf(" tm_min = %d\n", tm_ptr->tm_min);
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printf(" tm_hour = %d\n", tm_ptr->tm_hour);
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printf(" tm_mday = %d\n", tm_ptr->tm_mday);
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printf(" tm_mon = %d\n", tm_ptr->tm_mon);
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printf(" tm_year = %d\n", tm_ptr->tm_year);
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printf(" tm_wday = %d\n", tm_ptr->tm_wday);
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printf(" tm_yday = %d\n", tm_ptr->tm_yday);
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printf(" tm_isdst = %d\n", tm_ptr->tm_isdst);
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printf(" tm_gmtoff = %ld\n", tm_ptr->tm_gmtoff);
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printf(" tm_zone = %s\n", tm_ptr->tm_zone);
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}
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int main(void) {
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time_t unix_epoch_seconds = 0;
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// Exercise the different branches of the leap year logic
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// 1970: common year
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time_t y1970_mar01_seconds = 5097600; // 1970-03-01 00:00:00
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time_t y1970_dec31_seconds = 31535999; // 1970-12-31 23:59:59
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// 1972: leap year
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time_t y1972_feb29_seconds = 68255999; // 1972-02-29 23:59:59
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time_t y1972_dec31_seconds = 94694399; // 1972-12-31 23:59:59
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// 2000: leap year
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time_t y2000_feb29_seconds = 951868799; // 2000-02-29 23:59:59
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time_t y2000_dec31_seconds = 978307199; // 2000-12-31 23:59:59
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// 2100: common year
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time_t y2100_mar01_seconds = 4107542400; // 2100-03-01 00:00:00
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time_t y2100_dec31_seconds = 4133980799; // 2100-12-31 23:59:59
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// Year 2038-related corner cases
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time_t y2038_pre_seconds = 2147483647;
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time_t y2038_post_seconds = 2147483648;
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time_t y2106_pre_seconds = 4294967295;
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time_t y2106_post_seconds = 4294967296;
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struct tm *result_tm = NULL;
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puts("Unix epoch:");
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result_tm = gmtime(&unix_epoch_seconds);
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print_tm(result_tm);
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puts("");
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puts("1970-03-01 00:00:00:");
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result_tm = gmtime(&y1970_mar01_seconds);
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print_tm(result_tm);
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puts("");
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puts("1970-12-31 23:59:59:");
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result_tm = gmtime(&y1970_dec31_seconds);
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print_tm(result_tm);
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puts("");
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puts("1972-02-29 23:59:59:");
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result_tm = gmtime(&y1972_feb29_seconds);
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print_tm(result_tm);
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puts("");
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puts("1972-12-31 23:59:59:");
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result_tm = gmtime(&y1972_dec31_seconds);
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print_tm(result_tm);
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puts("");
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puts("2000-02-29 23:59:59:");
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result_tm = gmtime(&y2000_feb29_seconds);
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print_tm(result_tm);
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puts("");
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puts("2000-12-31 23:59:59:");
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result_tm = gmtime(&y2000_dec31_seconds);
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print_tm(result_tm);
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puts("");
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puts("2100-03-01 00:00:00:");
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result_tm = gmtime(&y2100_mar01_seconds);
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print_tm(result_tm);
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puts("");
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puts("2100-12-31 23:59:59:");
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result_tm = gmtime(&y2100_dec31_seconds);
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print_tm(result_tm);
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puts("");
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puts("Year 2038, pre-i32 overflow:");
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result_tm = gmtime(&y2038_pre_seconds);
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print_tm(result_tm);
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puts("");
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puts("Year 2038, post-i32 overflow:");
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result_tm = gmtime(&y2038_post_seconds);
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print_tm(result_tm);
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puts("");
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puts("Year 2106, pre-u32 overflow:");
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result_tm = gmtime(&y2106_pre_seconds);
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print_tm(result_tm);
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puts("");
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puts("Year 2106, post-u32 overflow:");
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result_tm = gmtime(&y2106_post_seconds);
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print_tm(result_tm);
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}
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