// SPDX-License-Identifier: GPL-2.0#include <cap-ng.h>#include <linux/capability.h>#include <stdbool.h>#include <string.h>#include <stdio.h>#include <sys/prctl.h>#include <sys/auxv.h> #include "kselftest.h" #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19)# define HAVE_GETAUXVAL#endif static bool bool_arg(char **argv, int i){	if (!strcmp(argv[i], "0"))		return false;	else if (!strcmp(argv[i], "1"))		return true;	else {		ksft_exit_fail_msg("wrong argv[%d]\n", i);		return false;	}} int main(int argc, char **argv){	const char *atsec = "";	int ret; 	/*	 * Be careful just in case a setgid or setcapped copy of this	 * helper gets out.	 */ 	if (argc != 5)		ksft_exit_fail_msg("wrong argc\n"); #ifdef HAVE_GETAUXVAL	if (getauxval(AT_SECURE))		atsec = " (AT_SECURE is set)";	else		atsec = " (AT_SECURE is not set)";#endif 	ret = capng_get_caps_process();	if (ret == -1) {		ksft_print_msg("capng_get_caps_process failed\n");		return 1;	} 	if (capng_have_capability(CAPNG_EFFECTIVE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 1)) {		ksft_print_msg("Wrong effective state%s\n", atsec);		return 1;	} 	if (capng_have_capability(CAPNG_PERMITTED, CAP_NET_BIND_SERVICE) != bool_arg(argv, 2)) {		ksft_print_msg("Wrong permitted state%s\n", atsec);		return 1;	} 	if (capng_have_capability(CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 3)) {		ksft_print_msg("Wrong inheritable state%s\n", atsec);		return 1;	} 	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != bool_arg(argv, 4)) {		ksft_print_msg("Wrong ambient state%s\n", atsec);		return 1;	} 	ksft_print_msg("%s: Capabilities after execve were correct\n",			"validate_cap:");	return 0;}