1 // RUN: %clangxx_msan -O0 %s -o %t && %run %t %p 2>&1 | FileCheck %s 2 // RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 2>&1 | FileCheck %s 3 // RUN: %clangxx_msan -O3 %s -o %t && %run %t %p 2>&1 | FileCheck %s 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 static void my_gl_closedir(void *dir) { 20 if (!dir) 21 exit(1); 22 closedir((DIR *)dir); 23 } 24 25 static struct dirent *my_gl_readdir(void *dir) { 26 if (!dir) 27 exit(1); 28 struct dirent *d = readdir((DIR *)dir); 29 if (d) __msan_poison(d, d->d_reclen); // hehe 30 return d; 31 } 32 33 static void *my_gl_opendir(const char *s) { 34 assert(__msan_test_shadow(s, strlen(s) + 1) == (size_t)-1); 35 return opendir(s); 36 } 37 38 static int my_gl_lstat(const char *s, struct stat *st) { 39 assert(__msan_test_shadow(s, strlen(s) + 1) == (size_t)-1); 40 if (!st) 41 exit(1); 42 return lstat(s, st); 43 } 44 45 static int my_gl_stat(const char *s, struct stat *st) { 46 assert(__msan_test_shadow(s, strlen(s) + 1) == (size_t)-1); 47 if (!st) 48 exit(1); 49 return lstat(s, st); 50 } 51 52 int main(int argc, char *argv[]) { 53 assert(argc == 2); 54 char buf[1024]; 55 snprintf(buf, sizeof(buf), "%s/%s", argv[1], "glob_test_root/*a"); 56 57 glob_t globbuf; 58 globbuf.gl_closedir = my_gl_closedir; 59 globbuf.gl_readdir = my_gl_readdir; 60 globbuf.gl_opendir = my_gl_opendir; 61 globbuf.gl_lstat = my_gl_lstat; 62 globbuf.gl_stat = my_gl_stat; 63 for (int i = 0; i < 10000; ++i) { 64 int res = glob(buf, GLOB_ALTDIRFUNC | GLOB_MARK, 0, &globbuf); 65 assert(res == 0); 66 printf("%d %s\n", errno, strerror(errno)); 67 assert(globbuf.gl_pathc == 2); 68 printf("%zu\n", strlen(globbuf.gl_pathv[0])); 69 printf("%zu\n", strlen(globbuf.gl_pathv[1])); 70 __msan_poison(globbuf.gl_pathv[0], strlen(globbuf.gl_pathv[0]) + 1); 71 __msan_poison(globbuf.gl_pathv[1], strlen(globbuf.gl_pathv[1]) + 1); 72 globfree(&globbuf); 73 } 74 75 printf("PASS\n"); 76 // CHECK: PASS 77 return 0; 78 } 79
