29 lines
556 B
C
29 lines
556 B
C
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#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <pwd.h>
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#include <string.h>
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int main(void) {
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sigset_t set;
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sigemptyset( &set );
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sigaddset( &set, SIGINT);
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sigaddset( &set, SIGTERM);
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sigaddset( &set, SIGUSR1);
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if( sigismember( &set, SIGINT ) ){
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printf("This set contains SIGINT\n");
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}
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sigdelset( &set, SIGUSR1);
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if( sigismember( &set, SIGUSR1 ) ){
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printf("This set contains SIGUSR1\n");
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}
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exit(0);
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}
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