/*
* Copyright ( C ) 2017 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#include <glob.h>
#include <dirent.h>
#include <sys/cdefs.h>
#include <gtest/gtest.h>
#include <string>
#include <vector>
#include <android-base/file.h>
#if defined (__BIONIC__)
#define ASSERT_MATCH_COUNT(n_,g_) ASSERT_EQ(n_, g_.gl_matchc)
#else
#define ASSERT_MATCH_COUNT(n_,g_)
#endif
//
// Helper for use with GLOB_ALTDIRFUNC to iterate over the elements of `fake_dir`.
//
#if !
defined (ANDROID_HOST_MUSL)
static std::vector<std::string> fake_dir;
static size_t fake_dir_offset;
static void fake_closedir(
void *) {
}
static dirent* fake_readdir(
void *) {
static dirent d;
if (fake_dir_offset >= fake_dir.size())
return nullptr;
strcpy(d.d_name, fake_dir[fake_dir_offset++].c_str());
return &d;
}
static void * fake_opendir(
const char * path) {
fake_dir_offset =
0 ;
if (strcmp(path,
"/opendir-fail/" ) ==
0 ) {
errno = EINVAL;
return nullptr;
}
return &fake_dir;
}
static int fake_lstat(
const char *,
struct stat*) {
return 0 ;
}
static int fake_stat(
const char *,
struct stat*) {
return 0 ;
}
static void InstallFake(glob_t* g) {
g->gl_closedir = fake_closedir;
g->gl_readdir = fake_readdir;
g->gl_opendir = fake_opendir;
g->gl_lstat = fake_lstat;
g->gl_stat = fake_stat;
}
#endif
TEST(glob, glob_result_GLOB_NOMATCH) {
glob_t g = {};
ASSERT_EQ(GLOB_NOMATCH, glob(
"/will/match/nothing" ,
0 , nullptr, &g));
ASSERT_EQ(
0 U, g.gl_pathc);
ASSERT_MATCH_COUNT(
0 U, g);
}
TEST(glob, glob_GLOB_APPEND) {
glob_t g = {};
ASSERT_EQ(
0 , glob(
"/proc/version" ,
0 , nullptr, &g));
ASSERT_EQ(
1 U, g.gl_pathc);
ASSERT_MATCH_COUNT(
1 U, g);
ASSERT_STREQ(
"/proc/version" , g.gl_pathv[
0 ]);
ASSERT_EQ(nullptr, g.gl_pathv[
1 ]);
ASSERT_EQ(
0 , glob(
"/proc/version" , GLOB_APPEND, nullptr, &g));
ASSERT_EQ(
2 U, g.gl_pathc);
ASSERT_MATCH_COUNT(
1 U, g);
ASSERT_STREQ(
"/proc/version" , g.gl_pathv[
0 ]);
ASSERT_STREQ(
"/proc/version" , g.gl_pathv[
1 ]);
ASSERT_EQ(nullptr, g.gl_pathv[
2 ]);
globfree(&g);
}
TEST(glob, glob_GLOB_DOOFFS) {
glob_t g = {};
g.gl_offs =
2 ;
ASSERT_EQ(
0 , glob(
"/proc/version" , GLOB_DOOFFS, nullptr, &g));
ASSERT_EQ(
1 U, g.gl_pathc);
ASSERT_MATCH_COUNT(
1 U, g);
ASSERT_EQ(nullptr, g.gl_pathv[
0 ]);
ASSERT_EQ(nullptr, g.gl_pathv[
1 ]);
ASSERT_STREQ(
"/proc/version" , g.gl_pathv[
2 ]);
ASSERT_EQ(nullptr, g.gl_pathv[
3 ]);
globfree(&g);
}
#if !
defined (ANDROID_HOST_MUSL)
static std::string g_failure_path;
static int g_failure_errno;
static int test_error_callback_result;
static int test_error_callback(
const char * failure_path,
int failure_errno) {
g_failure_path = failure_path;
g_failure_errno = failure_errno;
return test_error_callback_result;
}
#endif
TEST(glob, glob_gl_errfunc) {
#if !
defined (ANDROID_HOST_MUSL)
glob_t g = {};
InstallFake(&g);
test_error_callback_result =
0 ;
g_failure_errno =
0 ;
ASSERT_EQ(GLOB_NOMATCH, glob(
"/opendir-fail/x*" , GLOB_ALTDIRFUNC, test_error_callba
ck, &g));
ASSERT_EQ("/opendir-fail/" , g_failure_path);
ASSERT_EQ(EINVAL, g_failure_errno);
test_error_callback_result = 1 ;
g_failure_errno = 0 ;
ASSERT_EQ(GLOB_ABORTED, glob("/opendir-fail/x*" , GLOB_ALTDIRFUNC, test_error_callback, &g));
ASSERT_EQ("/opendir-fail/" , g_failure_path);
ASSERT_EQ(EINVAL, g_failure_errno);
#else
GTEST_SKIP() << "musl doesn't support GLOB_ALTDIRFUNC" ;
#endif
}
TEST(glob, glob_GLOB_ERR) {
#if !defined (ANDROID_HOST_MUSL)
glob_t g = {};
InstallFake(&g);
ASSERT_EQ(GLOB_NOMATCH, glob("/opendir-fail/x*" , GLOB_ALTDIRFUNC, nullptr, &g));
ASSERT_EQ(GLOB_ABORTED, glob("/opendir-fail/x*" , GLOB_ALTDIRFUNC | GLOB_ERR, nullptr, &g));
#else
GTEST_SKIP() << "musl doesn't support GLOB_ALTDIRFUNC" ;
#endif
}
TEST(glob, glob_GLOB_MARK) {
TemporaryDir td;
// The pattern we're about to pass doesn't have a trailing '/'...
ASSERT_NE('/' , std::string(td.path).back());
glob_t g = {};
// Using GLOB_MARK gets you a trailing '/' on a directory...
ASSERT_EQ(0 , glob(td.path, GLOB_MARK, nullptr, &g));
ASSERT_EQ(1 U, g.gl_pathc);
ASSERT_MATCH_COUNT(1 U, g);
ASSERT_EQ(std::string(td.path) + "/" , g.gl_pathv[0 ]);
ASSERT_EQ(nullptr, g.gl_pathv[1 ]);
TemporaryFile tf;
// But not on a file...
ASSERT_EQ(0 , glob(tf.path, GLOB_MARK, nullptr, &g));
ASSERT_EQ(1 U, g.gl_pathc);
ASSERT_MATCH_COUNT(1 U, g);
ASSERT_STREQ(tf.path, g.gl_pathv[0 ]);
ASSERT_EQ(nullptr, g.gl_pathv[1 ]);
globfree(&g);
}
TEST(glob, glob_GLOB_NOCHECK) {
glob_t g = {};
ASSERT_EQ(0 , glob("/will/match/nothing" , GLOB_NOCHECK, nullptr, &g));
ASSERT_EQ(1 U, g.gl_pathc);
ASSERT_MATCH_COUNT(0 U, g);
ASSERT_STREQ("/will/match/nothing" , g.gl_pathv[0 ]);
ASSERT_EQ(nullptr, g.gl_pathv[1 ]);
globfree(&g);
}
TEST(glob, glob_GLOB_NOSORT) {
#if !defined (ANDROID_HOST_MUSL)
fake_dir = { "c" , "a" , "d" , "b" };
glob_t g = {};
InstallFake(&g);
ASSERT_EQ(0 , glob("*" , GLOB_ALTDIRFUNC, nullptr, &g));
ASSERT_EQ(4 U, g.gl_pathc);
ASSERT_MATCH_COUNT(4 U, g);
ASSERT_STREQ("a" , g.gl_pathv[0 ]);
ASSERT_STREQ("b" , g.gl_pathv[1 ]);
ASSERT_STREQ("c" , g.gl_pathv[2 ]);
ASSERT_STREQ("d" , g.gl_pathv[3 ]);
ASSERT_EQ(nullptr, g.gl_pathv[4 ]);
ASSERT_EQ(0 , glob("*" , GLOB_ALTDIRFUNC | GLOB_NOSORT, nullptr, &g));
ASSERT_EQ(4 U, g.gl_pathc);
ASSERT_MATCH_COUNT(4 U, g);
ASSERT_STREQ("c" , g.gl_pathv[0 ]);
ASSERT_STREQ("a" , g.gl_pathv[1 ]);
ASSERT_STREQ("d" , g.gl_pathv[2 ]);
ASSERT_STREQ("b" , g.gl_pathv[3 ]);
ASSERT_EQ(nullptr, g.gl_pathv[4 ]);
#else
GTEST_SKIP() << "musl doesn't support GLOB_ALTDIRFUNC" ;
#endif
}
TEST(glob, glob_GLOB_MAGCHAR) {
#if !defined (ANDROID_HOST_MUSL)
glob_t g = {};
ASSERT_EQ(GLOB_NOMATCH, glob("/does-not-exist" , 0 , nullptr, &g));
ASSERT_TRUE((g.gl_flags & GLOB_MAGCHAR) == 0 );
ASSERT_EQ(GLOB_NOMATCH, glob("/does-not-exist*" , 0 , nullptr, &g));
ASSERT_TRUE((g.gl_flags & GLOB_MAGCHAR) != 0 );
// We can lie, but glob(3) will turn that into truth...
ASSERT_EQ(GLOB_NOMATCH, glob("/does-not-exist" , GLOB_MAGCHAR, nullptr, &g));
ASSERT_TRUE((g.gl_flags & GLOB_MAGCHAR) == 0 );
#else
GTEST_SKIP() << "musl doesn't support GLOB_MAGCHAR" ;
#endif
}
#if !defined (ANDROID_HOST_MUSL)
static void CheckGlob(const char * pattern, const std::vector<std::string>& expected_matches) {
glob_t g = {};
InstallFake(&g);
int expected_result = expected_matches.empty() ? GLOB_NOMATCH : 0 ;
ASSERT_EQ(expected_result, glob(pattern, GLOB_ALTDIRFUNC, nullptr, &g)) << pattern;
ASSERT_EQ(expected_matches.size(), g.gl_pathc);
ASSERT_MATCH_COUNT(expected_matches.size(), g);
for (size_t i = 0 ; i < expected_matches.size(); ++i) {
ASSERT_EQ(expected_matches[i], g.gl_pathv[i]);
}
if (!expected_matches.empty()) {
ASSERT_EQ(nullptr, g.gl_pathv[expected_matches.size()]);
}
globfree(&g);
}
#endif
TEST(glob, glob_globbing) {
#if !defined (ANDROID_HOST_MUSL)
fake_dir = { "f1" , "f2" , "f30" , "f40" };
CheckGlob("f?" , { "f1" , "f2" });
CheckGlob("f??" , { "f30" , "f40" });
CheckGlob("f*" , { "f1" , "f2" , "f30" , "f40" });
#else
GTEST_SKIP() << "musl doesn't support GLOB_ALTDIRFUNC" ;
#endif
}
TEST(glob, glob_globbing_rsc) {
#if !defined (ANDROID_HOST_MUSL)
// https://research.swtch.com/glob
fake_dir = { "axbxcxdxe" };
CheckGlob("a*b*c*d*e*" , { "axbxcxdxe" });
fake_dir = { "axbxcxdxexxx" };
CheckGlob("a*b*c*d*e*" , { "axbxcxdxexxx" });
fake_dir = { "abxbbxdbxebxczzx" };
CheckGlob("a*b?c*x" , { "abxbbxdbxebxczzx" });
fake_dir = { "abxbbxdbxebxczzy" };
CheckGlob("a*b?c*x" , {});
fake_dir = { std::string(100 , 'a' ) };
CheckGlob("a*a*a*a*b" , {});
#else
GTEST_SKIP() << "musl doesn't support GLOB_ALTDIRFUNC" ;
#endif
}
Messung V0.5 in Prozent C=91 H=93 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-28)
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