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-rw-r--r--src/shared/util.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index 6d826b6f5e..4cf928f83a 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -3400,6 +3400,12 @@ int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct
return ret;
}
+static int is_temporary_fs(struct statfs *s) {
+ assert(s);
+ return s->f_type == TMPFS_MAGIC ||
+ (long)s->f_type == (long)RAMFS_MAGIC;
+}
+
int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev) {
struct statfs s;
@@ -3413,9 +3419,7 @@ int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root
/* We refuse to clean disk file systems with this call. This
* is extra paranoia just to be sure we never ever remove
* non-state data */
-
- if (s.f_type != TMPFS_MAGIC &&
- s.f_type != RAMFS_MAGIC) {
+ if (!is_temporary_fs(&s)) {
log_error("Attempted to remove disk file system, and we can't allow that.");
close_nointr_nofail(fd);
return -EPERM;
@@ -3448,8 +3452,7 @@ static int rm_rf_internal(const char *path, bool only_dirs, bool delete_root, bo
if (statfs(path, &s) < 0)
return -errno;
- if (s.f_type != TMPFS_MAGIC &&
- s.f_type != RAMFS_MAGIC) {
+ if (!is_temporary_fs(&s)) {
log_error("Attempted to remove disk file system, and we can't allow that.");
return -EPERM;
}
@@ -3468,8 +3471,7 @@ static int rm_rf_internal(const char *path, bool only_dirs, bool delete_root, bo
return -errno;
}
- if (s.f_type != TMPFS_MAGIC &&
- s.f_type != RAMFS_MAGIC) {
+ if (!is_temporary_fs(&s)) {
log_error("Attempted to remove disk file system, and we can't allow that.");
close_nointr_nofail(fd);
return -EPERM;
@@ -5767,7 +5769,7 @@ bool in_initrd(void) {
saved = access("/etc/initrd-release", F_OK) >= 0 &&
statfs("/", &s) >= 0 &&
- (s.f_type == TMPFS_MAGIC || s.f_type == RAMFS_MAGIC);
+ is_temporary_fs(&s);
return saved;
}