C++程序  |  31行  |  544 B

#include "tests.h"
#include <asm/unistd.h>

#ifdef __NR_access

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

int
main(void)
{
	static const char sample[] = "access_sample";

	long rc = syscall(__NR_access, sample, F_OK);
	printf("access(\"%s\", F_OK) = %ld %s (%m)\n",
	       sample, rc, errno2name());

	rc = syscall(__NR_access, sample, R_OK|W_OK|X_OK);
	printf("access(\"%s\", R_OK|W_OK|X_OK) = %ld %s (%m)\n",
	       sample, rc, errno2name());

	puts("+++ exited with 0 +++");
	return 0;
}

#else

SKIP_MAIN_UNDEFINED("__NR_access")

#endif