// RUN: %clang %s -o %t && %run %t // capget() and capset() are not intercepted on Android. // UNSUPPORTED: android #include #include #include #include #include #include "sanitizer_common/sanitizer_specific.h" /* Use capget() and capset() from glibc. */ int capget(cap_user_header_t header, cap_user_data_t data); int capset(cap_user_header_t header, const cap_user_data_t data); static void test(int version, int u32s) { struct __user_cap_header_struct hdr = { .version = version, .pid = 0, }; struct __user_cap_data_struct data[u32s]; if (capget(&hdr, data)) { assert(errno == EINVAL); /* Check that memory is not touched. */ #if __has_feature(memory_sanitizer) assert(__msan_test_shadow(data, sizeof(data)) == 0); #endif hdr.version = version; int err = capset(&hdr, data); assert(errno == EINVAL); } else { for (int i = 0; i < u32s; i++) printf("%x %x %x\n", data[i].effective, data[i].permitted, data[i].inheritable); int err = capset(&hdr, data); assert(!err); } } int main() { test(0, 1); /* Test an incorrect version. */ test(_LINUX_CAPABILITY_VERSION_1, _LINUX_CAPABILITY_U32S_1); test(_LINUX_CAPABILITY_VERSION_2, _LINUX_CAPABILITY_U32S_2); test(_LINUX_CAPABILITY_VERSION_3, _LINUX_CAPABILITY_U32S_3); return EXIT_SUCCESS; }