79 lines · cpp
1// RUN: %clangxx_msan -O0 %s -o %t && %run %t %p 2>&1 | FileCheck %s2// RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 2>&1 | FileCheck %s3// RUN: %clangxx_msan -O3 %s -o %t && %run %t %p 2>&1 | FileCheck %s4 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 19static void my_gl_closedir(void *dir) {20 if (!dir)21 exit(1);22 closedir((DIR *)dir);23}24 25static 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); // hehe30 return d;31}32 33static 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 38static 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 45static 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 52int 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: PASS77 return 0;78}79