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47 lines
742 B
C
47 lines
742 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <signal.h>
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#include <errno.h>
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bool sigtrap_received = false;
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void handler(int signo)
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{
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if (signo == SIGTRAP)
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sigtrap_received = true;
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}
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int main()
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{
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struct sigaction sa;
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int status;
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sa.sa_flags = 0;
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sa.sa_handler = handler;
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status = sigemptyset(&sa.sa_mask);
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if (status < 0) {
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perror("sigemptyset()");
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exit(EXIT_FAILURE);
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}
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status = sigaction(SIGTRAP, &sa, 0);
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if (status < 0) {
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perror("sigaction(SIGTRAP)");
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exit(EXIT_FAILURE);
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}
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status = raise(SIGTRAP);
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if (status != 0) {
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perror("raise(SIGTRAP)");
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exit(EXIT_FAILURE);
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}
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if (sigtrap_received)
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exit(EXIT_SUCCESS);
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else
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exit(EXIT_FAILURE);
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}
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