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.
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "signals_list.h"
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#include "../test_helpers.h"
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int signal_blocked = 0;
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int count = 1;
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void sig_handler(int signo)
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{
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(void) signo;
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// printf("SIGCHLD called. Inside handler\n");
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sigset_t mask;
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sigprocmask(SIG_SETMASK, NULL, &mask);
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if (count == SIGKILL || count == SIGSTOP){
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count++;
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}
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if(sigismember(&mask, count)) {
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signal_blocked = 1;
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}
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count++;
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}
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int sigset_test4(int signum)
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{
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if (sigset(signum, sig_handler) == SIG_ERR) {
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perror("Unexpected error while using sigset()");
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exit(EXIT_FAILURE);
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}
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raise(signum);
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if (signal_blocked != 1) {
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printf("Test FAILED: signal was not added to the mask before the handler was executed\n");
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exit(EXIT_FAILURE);
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}
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signal_blocked = 0;
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printf("test %d passed: the singal was added to the mask before the handler was executed\n", signum);
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return EXIT_SUCCESS;
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}
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int main(){
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for (int i=1; i<N_SIGNALS; i++){
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if (i == SIGKILL || i == SIGSTOP){
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continue;
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}
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sigset_test4(i);
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}
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return EXIT_SUCCESS;
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}
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