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57 lines
1.4 KiB
57 lines
1.4 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <signal.h>
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int main(int argc, char ** argv)
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{
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if (argc > 1)
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{
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FILE *out = fopen("sigchld_app.out", "w");
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struct sigaction action;
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sigaction(SIGCHLD, 0, &action);
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if (action.sa_handler == SIG_IGN)
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{
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fprintf(out, "SA handler of the child process is SIG_IGN\n");
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}
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else if (action.sa_handler == SIG_DFL)
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{
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fprintf(out, "SA handler of the child process is SIG_DFL\n");
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}
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fclose(out);
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return 0;
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}
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struct sigaction action;
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char *execv_argv[3];
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execv_argv[0] = argv[0];
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execv_argv[1] = "1";
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execv_argv[2] = NULL;
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// do not transform children into zombies when they terminate
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action.sa_handler = SIG_IGN;
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sigemptyset(&action.sa_mask);
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action.sa_flags = SA_NOCLDWAIT;
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sigaction(SIGCHLD, &action, NULL);
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// it requires a care inside Pin, othrewise injector fails
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execv(execv_argv[0], execv_argv);
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printf("exec failed\n");
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return -1;
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}
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