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.
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
#include <pthread.h>
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#include <stdio.h>
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#include <signal.h>
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#include <errno.h>
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#include <unistd.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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// This program verifies that sigpause() removes sig from the signal mask.
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int handler_called = 0;
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void handler() {
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handler_called = 1;
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return;
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}
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void *a_thread_func(void *sig)
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{
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int status;
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int signum = *(int *)sig;
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printf("Pausing signal %s\n", signum);
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struct sigaction act;
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act.sa_flags = 0;
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act.sa_handler = handler;
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status = sigemptyset(&act.sa_mask);
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ERROR_IF(sigemptyset, status, != 0);
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status = sigaction(signum, &act, 0);
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ERROR_IF(sigaction, status, != 0);
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status = sighold(signum);
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ERROR_IF(sighold, status, != 0);
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status = sigpause(signum);
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ERROR_IF(sigpause, status, != 0);
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return NULL;
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}
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int sigpause_basic(int signum)
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{
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pthread_t new_th;
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int status;
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status = pthread_create(&new_th, NULL, a_thread_func, (void *)&signum);
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ERROR_IF(pthread_create, status, != 0);
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usleep(100000);
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status = pthread_kill(new_th, signum);
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ERROR_IF(pthread_kill, status, != 0);
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usleep(100000);
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if (handler_called != 1){
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prinft("handler wasn't called\n");
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exit(EXIT_FAILURE);
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}
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handler_called = 0;
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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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int sig = signals_list[i].signal;
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if (sig == SIGKILL || sig == SIGSTOP){
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continue;
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}
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sigpause_basic(sig);
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}
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return EXIT_SUCCESS;
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}
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