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.
70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
// The sigrelse() function shall remove sig from the signal mask of the calling process.
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#include <assert.h>
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#include <sys/types.h>
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#include <signal.h>
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#include <stdio.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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volatile sig_atomic_t handler_called = 0;
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void sig_handler(int signo)
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{
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(void) signo;
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handler_called = 1;
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}
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int sigrelse_test(int signum)
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{
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// needs to be reset
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handler_called = 0;
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struct sigaction act;
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act.sa_handler = sig_handler;
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act.sa_flags = 0;
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sigemptyset(&act.sa_mask);
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int status;
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status = sigaction(signum, &act, NULL);
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ERROR_IF(sigaction, status, == -1);
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status = sighold(signum);
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ERROR_IF(sighold, status, == -1);
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assert(handler_called == 0);
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status = raise(signum);
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ERROR_IF(raise, status, == -1);
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assert(handler_called == 0);
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status = sigrelse(signum);
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ERROR_IF(sigrelse, status, == -1);
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assert(handler_called == 1);
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// if (handler_called) {
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// printf("PASS: %d successfully removed from signal mask\n", signum);
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// handler_called = 0;
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// return EXIT_SUCCESS;
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// }
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// printf("FAIL\n");
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// exit(EXIT_FAILURE);
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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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printf("For signal %s\n", strsignal(i));
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sigrelse_test(i);
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}
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return 0;
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}
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