diff options
| -rw-r--r-- | src/xz/file_io.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/xz/file_io.c b/src/xz/file_io.c index 0ba8db8f..676508dc 100644 --- a/src/xz/file_io.c +++ b/src/xz/file_io.c @@ -368,7 +368,13 @@ io_copy_attrs(const file_pair *pair) mode_t mode; - if (fchown(pair->dest_fd, (uid_t)(-1), pair->src_st.st_gid)) { + // With BSD semantics the new dest file may have a group that + // does not belong to the user. If the src file has the same gid + // nothing has to be done. Nevertheless OpenBSD fchown(2) fails + // in this case which seems to be POSIX compliant. As there is + // nothing to do, skip the system call. + if (pair->dest_st.st_gid != pair->src_st.st_gid && + fchown(pair->dest_fd, (uid_t)(-1), pair->src_st.st_gid)) { message_warning(_("%s: Cannot set the file group: %s"), pair->dest_name, strerror(errno)); // We can still safely copy some additional permissions: |