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otautil: Delete dirUnlinkHierarchy().

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This function has become obsolete since we've removed file-based OTA
support (it was needed by 'delete_recursive' edify function earlier).

Test: mmma -j bootable/recovery
Test: Code search shows no active user of the function.
Change-Id: If6faaa759d4c849b79acba4e6adb82baadc89f7a
This commit is contained in:
Tao Bao 2017-07-24 20:30:29 -07:00
parent ac70ffcc85
commit 7934985e0c
3 changed files with 0 additions and 101 deletions
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56
otautil/DirUtil.cpp
View file

@ -160,59 +160,3 @@ dirCreateHierarchy(const char *path, int mode,
} }
return 0; return 0;
} }
int
dirUnlinkHierarchy(const char *path)
{
struct stat st;
DIR *dir;
struct dirent *de;
int fail = 0;
/* is it a file or directory? */
if (lstat(path, &st) < 0) {
return -1;
}
/* a file, so unlink it */
if (!S_ISDIR(st.st_mode)) {
return unlink(path);
}
/* a directory, so open handle */
dir = opendir(path);
if (dir == NULL) {
return -1;
}
/* recurse over components */
errno = 0;
while ((de = readdir(dir)) != NULL) {
//TODO: don't blow the stack
char dn[PATH_MAX];
if (!strcmp(de->d_name, "..") || !strcmp(de->d_name, ".")) {
continue;
}
snprintf(dn, sizeof(dn), "%s/%s", path, de->d_name);
if (dirUnlinkHierarchy(dn) < 0) {
fail = 1;
break;
}
errno = 0;
}
/* in case readdir or unlink_recursive failed */
if (fail || errno < 0) {
int save = errno;
closedir(dir);
errno = save;
return -1;
}
/* close directory handle */
if (closedir(dir) < 0) {
return -1;
}
/* delete target directory */
return rmdir(path);
}

13
otautil/DirUtil.h
View file

@ -17,13 +17,8 @@
#ifndef MINZIP_DIRUTIL_H_ #ifndef MINZIP_DIRUTIL_H_
#define MINZIP_DIRUTIL_H_ #define MINZIP_DIRUTIL_H_
#include <stdbool.h>
#include <utime.h> #include <utime.h>
#ifdef __cplusplus
extern "C" {
#endif
struct selabel_handle; struct selabel_handle;
/* Like "mkdir -p", try to guarantee that all directories /* Like "mkdir -p", try to guarantee that all directories
@ -43,12 +38,4 @@ int dirCreateHierarchy(const char *path, int mode,
const struct utimbuf *timestamp, bool stripFileName, const struct utimbuf *timestamp, bool stripFileName,
struct selabel_handle* sehnd); struct selabel_handle* sehnd);
/* rm -rf <path>
*/
int dirUnlinkHierarchy(const char *path);
#ifdef __cplusplus
}
#endif
#endif // MINZIP_DIRUTIL_H_ #endif // MINZIP_DIRUTIL_H_

32
tests/unit/dirutil_test.cpp
View file

@ -116,35 +116,3 @@ TEST(DirUtilTest, create_mode_and_timestamp) {
ASSERT_EQ(0, rmdir((prefix + "/a/b").c_str())); ASSERT_EQ(0, rmdir((prefix + "/a/b").c_str()));
ASSERT_EQ(0, rmdir((prefix + "/a").c_str())); ASSERT_EQ(0, rmdir((prefix + "/a").c_str()));
} }
TEST(DirUtilTest, unlink_invalid) {
// File doesn't exist.
ASSERT_EQ(-1, dirUnlinkHierarchy("doesntexist"));
// Nonexistent directory.
TemporaryDir td;
std::string path(td.path);
ASSERT_EQ(-1, dirUnlinkHierarchy((path + "/a").c_str()));
ASSERT_EQ(ENOENT, errno);
}
TEST(DirUtilTest, unlink_smoke) {
// Unlink a file.
TemporaryFile tf;
ASSERT_EQ(0, dirUnlinkHierarchy(tf.path));
ASSERT_EQ(-1, access(tf.path, F_OK));
TemporaryDir td;
std::string path(td.path);
constexpr mode_t mode = 0700;
ASSERT_EQ(0, mkdir((path + "/a").c_str(), mode));
ASSERT_EQ(0, mkdir((path + "/a/b").c_str(), mode));
ASSERT_EQ(0, mkdir((path + "/a/b/c").c_str(), mode));
ASSERT_EQ(0, mkdir((path + "/a/d").c_str(), mode));
// Remove "../a" recursively.
ASSERT_EQ(0, dirUnlinkHierarchy((path + "/a").c_str()));
// Verify it's gone.
ASSERT_EQ(-1, access((path + "/a").c_str(), F_OK));
}