#ifdef HAVE_CONFIG_H # include "config.h" #endif #include <assert.h> #include <stdlib.h> #include <unistd.h> #include <sys/syscall.h> int main(void) { #if defined(__NR_getuid32) \ && defined(__NR_setuid32) \ && defined(__NR_getresuid32) \ && defined(__NR_setreuid32) \ && defined(__NR_setresuid32) \ && defined(__NR_fchown32) \ && defined(__NR_getgroups32) int r, e, s; int size; int *list = 0; r = syscall(__NR_getuid32); assert(syscall(__NR_setuid32, r) == 0); assert(syscall(__NR_getresuid32, &r, &e, &s) == 0); assert(syscall(__NR_setreuid32, -1, -1L) == 0); assert(syscall(__NR_setresuid32, r, -1, -1L) == 0); assert(syscall(__NR_fchown32, 1, -1, -1L) == 0); assert((size = syscall(__NR_getgroups32, 0, list)) >= 0); assert(list = calloc(size + 1, sizeof(*list))); assert(syscall(__NR_getgroups32, size, list) == size); return 0; #else return 77; #endif }