35 lines
599 B
C
35 lines
599 B
C
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#include <sys/signal.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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static void sig_usr(int);
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int main(void) {
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if(signal(SIGUSR1, sig_usr) == SIG_ERR) {
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printf("can't catch SIGUSR1\n");
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exit(-1);
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}
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if(signal(SIGUSR2, sig_usr) == SIG_ERR) {
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printf("can't catch SIGUSR2\n");
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exit(-1);
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}
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for(;;)
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pause();
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return 0;
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}
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static void sig_usr(int signo) {
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if(signo == SIGUSR1) {
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printf("SIGUSR1 received\n");
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}
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else if(signo == SIGUSR2) {
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printf("SIGUSR2 recieved\n");
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}
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else
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printf("error %d received", signo);
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}
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