diff options
Diffstat (limited to 'src/basic/mkdir.c')
| -rw-r--r-- | src/basic/mkdir.c | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/src/basic/mkdir.c b/src/basic/mkdir.c index 41638f7a81..6e2b94d024 100644 --- a/src/basic/mkdir.c +++ b/src/basic/mkdir.c @@ -21,15 +21,16 @@ int mkdir_safe_internal( mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags, - mkdir_func_t _mkdir) { + mkdirat_func_t _mkdirat) { struct stat st; int r; assert(path); - assert(_mkdir && _mkdir != mkdir); + assert(mode != MODE_INVALID); + assert(_mkdirat && _mkdirat != mkdirat); - if (_mkdir(path, mode) >= 0) { + if (_mkdirat(AT_FDCWD, path, mode) >= 0) { r = chmod_and_chown(path, mode, uid, gid); if (r < 0) return r; @@ -41,24 +42,20 @@ int mkdir_safe_internal( if ((flags & MKDIR_FOLLOW_SYMLINK) && S_ISLNK(st.st_mode)) { _cleanup_free_ char *p = NULL; - r = chase_symlinks(path, NULL, CHASE_NONEXISTENT, &p, NULL); + r = chase_symlinks_and_stat(path, NULL, CHASE_NONEXISTENT, &p, &st, NULL); if (r < 0) return r; if (r == 0) return mkdir_safe_internal(p, mode, uid, gid, flags & ~MKDIR_FOLLOW_SYMLINK, - _mkdir); - - if (lstat(p, &st) < 0) - return -errno; + _mkdirat); } if (!S_ISDIR(st.st_mode)) return log_full_errno(flags & MKDIR_WARN_MODE ? LOG_WARNING : LOG_DEBUG, SYNTHETIC_ERRNO(ENOTDIR), "Path \"%s\" already exists and is not a directory, refusing.", path); - if ((st.st_mode & 0007) > (mode & 0007) || - (st.st_mode & 0070) > (mode & 0070) || - (st.st_mode & 0700) > (mode & 0700)) + + if ((st.st_mode & ~mode & 0777) != 0) return log_full_errno(flags & MKDIR_WARN_MODE ? LOG_WARNING : LOG_DEBUG, SYNTHETIC_ERRNO(EEXIST), "Directory \"%s\" already exists, but has mode %04o that is too permissive (%04o was requested), refusing.", path, st.st_mode & 0777, mode); @@ -79,24 +76,20 @@ int mkdir_safe_internal( return 0; } -int mkdir_errno_wrapper(const char *pathname, mode_t mode) { - return RET_NERRNO(mkdir(pathname, mode)); -} - int mkdirat_errno_wrapper(int dirfd, const char *pathname, mode_t mode) { return RET_NERRNO(mkdirat(dirfd, pathname, mode)); } int mkdir_safe(const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags) { - return mkdir_safe_internal(path, mode, uid, gid, flags, mkdir_errno_wrapper); + return mkdir_safe_internal(path, mode, uid, gid, flags, mkdirat_errno_wrapper); } -int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags, mkdir_func_t _mkdir) { +int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags, mkdirat_func_t _mkdirat) { const char *p, *e = NULL; int r; assert(path); - assert(_mkdir != mkdir); + assert(_mkdirat != mkdirat); if (prefix) { p = path_startswith_full(path, prefix, /* accept_dot_dot= */ false); @@ -145,7 +138,7 @@ int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, ui s[n] = '\0'; if (!prefix || !path_startswith_full(prefix, path, /* accept_dot_dot= */ false)) { - r = mkdir_safe_internal(path, mode, uid, gid, flags, _mkdir); + r = mkdir_safe_internal(path, mode, uid, gid, flags, _mkdirat); if (r < 0 && r != -EEXIST) return r; } @@ -155,30 +148,30 @@ int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, ui } int mkdir_parents(const char *path, mode_t mode) { - return mkdir_parents_internal(NULL, path, mode, UID_INVALID, UID_INVALID, 0, mkdir_errno_wrapper); + return mkdir_parents_internal(NULL, path, mode, UID_INVALID, UID_INVALID, 0, mkdirat_errno_wrapper); } int mkdir_parents_safe(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags) { - return mkdir_parents_internal(prefix, path, mode, uid, gid, flags, mkdir_errno_wrapper); + return mkdir_parents_internal(prefix, path, mode, uid, gid, flags, mkdirat_errno_wrapper); } -int mkdir_p_internal(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags, mkdir_func_t _mkdir) { +int mkdir_p_internal(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags, mkdirat_func_t _mkdirat) { int r; /* Like mkdir -p */ - assert(_mkdir != mkdir); + assert(_mkdirat != mkdirat); - r = mkdir_parents_internal(prefix, path, mode, uid, gid, flags, _mkdir); + r = mkdir_parents_internal(prefix, path, mode, uid, gid, flags, _mkdirat); if (r < 0) return r; if (!uid_is_valid(uid) && !gid_is_valid(gid) && flags == 0) { - r = _mkdir(path, mode); + r = _mkdirat(AT_FDCWD, path, mode); if (r < 0 && (r != -EEXIST || is_dir(path, true) <= 0)) return r; } else { - r = mkdir_safe_internal(path, mode, uid, gid, flags, _mkdir); + r = mkdir_safe_internal(path, mode, uid, gid, flags, _mkdirat); if (r < 0 && r != -EEXIST) return r; } @@ -187,11 +180,11 @@ int mkdir_p_internal(const char *prefix, const char *path, mode_t mode, uid_t ui } int mkdir_p(const char *path, mode_t mode) { - return mkdir_p_internal(NULL, path, mode, UID_INVALID, UID_INVALID, 0, mkdir_errno_wrapper); + return mkdir_p_internal(NULL, path, mode, UID_INVALID, UID_INVALID, 0, mkdirat_errno_wrapper); } int mkdir_p_safe(const char *prefix, const char *path, mode_t mode, uid_t uid, gid_t gid, MkdirFlags flags) { - return mkdir_p_internal(prefix, path, mode, uid, gid, flags, mkdir_errno_wrapper); + return mkdir_p_internal(prefix, path, mode, uid, gid, flags, mkdirat_errno_wrapper); } int mkdir_p_root(const char *root, const char *p, uid_t uid, gid_t gid, mode_t m) { |