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
my_gl_closedir(void * dir)19 static void my_gl_closedir(void *dir) {
20 if (!dir)
21 exit(1);
22 closedir((DIR *)dir);
23 }
24
my_gl_readdir(void * dir)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
my_gl_opendir(const char * s)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
my_gl_lstat(const char * s,struct stat * st)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
my_gl_stat(const char * s,struct stat * st)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
main(int argc,char * argv[])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