diff options
Diffstat (limited to 'src/nvim/fileio.c')
| -rw-r--r-- | src/nvim/fileio.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c index 55463bdf30..15d7a885d5 100644 --- a/src/nvim/fileio.c +++ b/src/nvim/fileio.c @@ -2868,6 +2868,23 @@ buf_write ( /* remove old backup, if present */ os_remove((char *)backup); + // set file protection same as original file, but + // strip s-bit. + (void)os_setperm((const char *)backup, perm & 0777); + +#ifdef UNIX + // + // Try to set the group of the backup same as the original file. If + // this fails, set the protection bits for the group same as the + // protection bits for others. + // + if (file_info_new.stat.st_gid != file_info_old.stat.st_gid + && os_chown((char *)backup, -1, file_info_old.stat.st_gid) != 0) { + os_setperm((const char *)backup, + (perm & 0707) | ((perm & 07) << 3)); + } +#endif + // copy the file if (os_copy((char *)fname, (char *)backup, UV_FS_COPYFILE_FICLONE) != 0) { |