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Output a zero rdev except for bdevs, cdevs, fifos and sockets. This

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stops regular files with unrepresentable rdevs from being rejected
and makes the output independent of unpreservable metadata.
This commit is contained in:
Bruce Evans 1995-09-12 16:38:16 +00:00
parent 6eab77f210
commit 3eb77f2c54
1 changed files with 26 additions and 2 deletions
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28
gnu/usr.bin/cpio/copyout.c
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@ -294,8 +294,32 @@ process_copy_out ()
file_hdr.c_uid = file_stat.st_uid;
file_hdr.c_gid = file_stat.st_gid;
file_hdr.c_nlink = file_stat.st_nlink;
file_hdr.c_rdev_maj = major (file_stat.st_rdev);
file_hdr.c_rdev_min = minor (file_stat.st_rdev);
/* The rdev is meaningless except for block and character
special files (POSIX standard) and perhaps fifos and
sockets. Clear it for other types of files so that
check_rdev() doesn't reject files just because stat()
put garbage in st_rdev and so that the output doesn't
depend on the garbage. */
switch (file_hdr.c_mode & CP_IFMT)
{
case CP_IFBLK:
case CP_IFCHR:
#ifdef CP_IFIFO
case CP_IFIFO:
#endif
#ifdef CP_IFSOCK
case CP_IFSOCK:
#endif
file_hdr.c_rdev_maj = major (file_stat.st_rdev);
file_hdr.c_rdev_min = minor (file_stat.st_rdev);
break;
default:
file_hdr.c_rdev_maj = 0;
file_hdr.c_rdev_min = 0;
break;
}
file_hdr.c_mtime = file_stat.st_mtime;
file_hdr.c_filesize = file_stat.st_size;
file_hdr.c_chksum = 0;