40 lines
954 B
C
40 lines
954 B
C
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/*
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* Test name: test12.c
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*
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* Objective: The purpose of this check the behaviour when a signal is received
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* and there is a handler.
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*
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* Description: The program handles SIGHUP and expects the user to actually send
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* the signal from other terminal with 'kill -1 pid'
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* Jose M. Gomez
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*/
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#include <sys/types.h>
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#include <sys/select.h>
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#include <unistd.h>
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#include <time.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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#define SECONDS 15
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void catch_hup(int sig_num)
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{
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/* don't need to reset signal handler */
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printf("Received a SIGHUP, inside the handler now\n");
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}
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int main(void) {
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int ret; /* return value */
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/* set the HUP sginal handler to 'catch_hup' */
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signal(SIGHUP, catch_hup);
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/* Get proc_id and print it */
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printf("Send a signal from other terminal with: kill -1 %d\n", getpid());
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printf("Blocking now on select...\n", SECONDS);
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ret = select(0, NULL, NULL, NULL, NULL);
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printf("Errno: %d\n", errno);
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}
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