#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

#include <gssapi.h>

void check_gss_have_cred_cache(const char *procname) {
	OM_uint32   major, minor;
	gss_cred_id_t cred = GSS_C_NO_CREDENTIAL;

	printf("before gss_acquire_cred in %s\n", procname);
	major = gss_acquire_cred(&minor, GSS_C_NO_NAME, 0, GSS_C_NO_OID_SET, GSS_C_INITIATE, &cred, NULL, NULL);
	printf("after gss_acquire_cred in %s\n", procname);

	printf("gss complete: %s\n", major == GSS_S_COMPLETE ? "true" : "false");
}

int main() {
	// comment out the line below to get things to work(around)
	check_gss_have_cred_cache("main");

	pid_t childpid = fork();
	if (childpid == 0) {
		check_gss_have_cred_cache("child");
		exit(0);
	}
	else if (childpid < 0) {
		printf("fork error\n");
	}
	else {
		int status;
		wait(&status);

		if (WIFEXITED(status)) {
			printf("child exit code: %d\n", WEXITSTATUS(status));
		}
		else if (WIFSIGNALED(status)) {
			printf("child signalled: %d\n", WTERMSIG(status));
		}
		else {
			printf("unexpected wait status: %d\n", status);
		}
	}
	return 0;
}