73 lines
1.4 KiB
C
73 lines
1.4 KiB
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 <signal.h>
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#include "./test_chk.h"
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#define TEST_NAME "CT_005"
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int handled_cnt;
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void test_handler(int sig)
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{
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handled_cnt++;
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}
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int main(int argc, char **argv)
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{
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int rc = 0;
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int pid = 0;
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int status;
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int tmp_flag = 0;
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struct sigaction sa;
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printf("*** %s start *******************************\n", TEST_NAME);
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handled_cnt = 0;
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pid = fork();
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CHKANDJUMP(pid == -1, "fork");
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if (pid == 0) { /* child */
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sa.sa_handler = test_handler;
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sa.sa_flags = SA_RESETHAND;
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rc = sigaction(SIGUSR1, &sa, NULL);
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OKNG(rc != 0, "sigaction with SA_RESETHAND");
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printf(" send 1st SIGUSR1\n");
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kill(getpid(), SIGUSR1);
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OKNG(handled_cnt != 1, "invoked test_handler");
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rc = sigaction(SIGUSR1, &sa, NULL);
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OKNG(rc != 0, "sigaction with SA_RESETHAND again");
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printf(" send 2nd SIGUSR1\n");
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kill(getpid(), SIGUSR1);
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OKNG(handled_cnt != 2, "invoked test_handler again");
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printf(" send 3rd SIGUSR1\n");
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kill(getpid(), SIGUSR1);
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OKNG(1, "can't reach here");
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} else { /* parent */
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rc = waitpid(pid, &status, 0);
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CHKANDJUMP(rc == -1, "waitpid");
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if (WIFSIGNALED(status)) {
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if (WTERMSIG(status) == SIGUSR1) {
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tmp_flag = 1;
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}
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}
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OKNG(tmp_flag != 1, "child is killed by SIGUSR1");
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}
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printf("*** %s PASSED\n\n", TEST_NAME);
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return 0;
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fn_fail:
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printf("*** %s FAILED\n\n", TEST_NAME);
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return -1;
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}
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