shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
Code Releases Activity

libdm: file: add proper checks for directory components in dm_create_dir

Browse Source 
Also make error messages more consistent:

Before this patch:

(/run/lock exists and is not a directory)
$ pvs
  /run/lock/lvm: mkdir failed: Not a directory
  File-based locking initialisation failed.

(/run/lock/lvm exists and is not a directory)
$ pvs
  Directory "/run/lock/lvm" not found
  File-based locking initialisation failed.

With this patch applied:

(/run/lock exists and is not a directory)
$ pvs
  Existing path /run/lock is not a directory.
  Failed to create directory /run/lock/lvm.
  File-based locking initialisation failed

(/run/lock/lvm exists and is not a directory)
$ pvs
  Existing path /run/lock/lvm is not a directory.
  Failed to create directory /run/lock/lvm.
  File-based locking initialisation failed.
This commit is contained in:
Peter Rajnoha 2015-09-17 14:29:51 +02:00
parent afdae26c71
commit 6c0b4a2769
1 changed files with 43 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
libdm/libdm-file.c
View File

@ -19,6 +19,24 @@
#include <fcntl.h>
#include <dirent.h>
static int _is_dir(const char *path)
{
struct stat st;
if (stat(path, &st) < 0) {
log_sys_error("stat", path);
return 0;
}
if (!S_ISDIR(st.st_mode)) {
log_error("Existing path %s is not "
"a directory.", path);
return 0;
}
return 1;
}
static int _create_dir_recursive(const char *dir)
{
char *orig, *s;
@ -36,10 +54,15 @@ static int _create_dir_recursive(const char *dir)
*s = '\0';
if (*orig) {
rc = mkdir(orig, 0777);
if (rc < 0 && errno != EEXIST) {
if (errno != EROFS)
log_sys_error("mkdir", orig);
goto out;
if (rc < 0) {
if (errno == EEXIST) {
if (!_is_dir(orig))
goto_out;
} else {
if (errno != EROFS)
log_sys_error("mkdir", orig);
goto out;
}
}
}
*s++ = '/';
@ -47,10 +70,15 @@ static int _create_dir_recursive(const char *dir)
/* Create final directory */
rc = mkdir(dir, 0777);
if (rc < 0 && errno != EEXIST) {
if (errno != EROFS)
log_sys_error("mkdir", orig);
goto out;
if (rc < 0) {
if (errno == EEXIST) {
if (!_is_dir(dir))
goto_out;
} else {
if (errno != EROFS)
log_sys_error("mkdir", orig);
goto out;
}
}
r = 1;
@ -66,14 +94,15 @@ int dm_create_dir(const char *dir)
if (!*dir)
return 1;
if (stat(dir, &info) < 0)
return _create_dir_recursive(dir);
if (S_ISDIR(info.st_mode))
if (stat(dir, &info) == 0 && S_ISDIR(info.st_mode))
return 1;
log_error("Directory \"%s\" not found", dir);
return 0;
if (!_create_dir_recursive(dir)) {
log_error("Failed to create directory %s.", dir);
return 0;
}
return 1;
}
int dm_is_empty_dir(const char *dir)