1 // RUN: %clangxx_msan -O0 %s -o %t && %run %t %p 2 // RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 3 // RUN: %clangxx_msan -O3 %s -o %t && %run %t %p 4 5 #include <assert.h> 6 #include <glob.h> 7 #include <stdio.h> 8 #include <stdlib.h> 9 #include <string.h> 10 #include <errno.h> 11 12 #include <sys/stat.h> 13 #include <sys/types.h> 14 #include <dirent.h> 15 #include <unistd.h> 16 17 #include <sanitizer/msan_interface.h> 18 19 20 static int my_filter(const struct dirent *a) { 21 assert(__msan_test_shadow(&a, sizeof(a)) == (size_t)-1); 22 printf("%s\n", a->d_name); 23 __msan_print_shadow(a, a->d_reclen); 24 assert(__msan_test_shadow(a, a->d_reclen) == (size_t)-1); 25 printf("%s\n", a->d_name); 26 return strlen(a->d_name) == 3 && a->d_name[2] == 'b'; 27 } 28 29 static int my_compar(const struct dirent **a, const struct dirent **b) { 30 assert(__msan_test_shadow(a, sizeof(*a)) == (size_t)-1); 31 assert(__msan_test_shadow(*a, (*a)->d_reclen) == (size_t)-1); 32 assert(__msan_test_shadow(b, sizeof(*b)) == (size_t)-1); 33 assert(__msan_test_shadow(*b, (*b)->d_reclen) == (size_t)-1); 34 if ((*a)->d_name[1] == (*b)->d_name[1]) 35 return 0; 36 return ((*a)->d_name[1] < (*b)->d_name[1]) ? 1 : -1; 37 } 38 39 int main(int argc, char *argv[]) { 40 assert(argc == 2); 41 char buf[1024]; 42 snprintf(buf, sizeof(buf), "%s/%s", argv[1], "scandir_test_root/"); 43 44 struct dirent **d; 45 int res = scandir(buf, &d, my_filter, my_compar); 46 assert(res == 2); 47 assert(__msan_test_shadow(&d, sizeof(*d)) == (size_t)-1); 48 for (int i = 0; i < res; ++i) { 49 assert(__msan_test_shadow(&d[i], sizeof(d[i])) == (size_t)-1); 50 assert(__msan_test_shadow(d[i], d[i]->d_reclen) == (size_t)-1); 51 } 52 53 assert(strcmp(d[0]->d_name, "bbb") == 0); 54 assert(strcmp(d[1]->d_name, "aab") == 0); 55 return 0; 56 } 57
