diff options
| -rw-r--r-- | toys/posix/cpio.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/toys/posix/cpio.c b/toys/posix/cpio.c index 69accbe3..09c99ae1 100644 --- a/toys/posix/cpio.c +++ b/toys/posix/cpio.c @@ -1,20 +1,19 @@ /* cpio.c - a basic cpio * - * Written 2013 AD by Isaac Dunham; this code is placed under the - * same license as toybox or as CC0, at your option. + * Copyright 2013 Isaac Dunham <ibid.ag@gmail.com> + * Copyright 2015 Frontier Silicon Ltd. * - * Portions Copyright 2015 by Frontier Silicon Ltd. - * - * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cpio.html + * see http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cpio.html * and http://pubs.opengroup.org/onlinepubs/7908799/xcu/cpio.html * - * Yes, that's SUSv2, the newer standards removed it around the time RPM - * and initramfs started heavily using this archive format. - * - * Modern cpio expanded header to 110 bytes (first field 6 bytes, rest are 8). + * Yes, that's SUSv2, newer versions removed it, but RPM and initramfs use + * this archive format. We implement (only) the modern "-H newc" variant which + * expanded headers to 110 bytes (first field 6 bytes, rest are 8). * In order: magic ino mode uid gid nlink mtime filesize devmajor devminor * rdevmajor rdevminor namesize check * This is the equiavlent of mode -H newc when using GNU CPIO. + * + * todo: export/import linux file list text format ala gen_initramfs_list.sh USE_CPIO(NEWTOY(cpio, "(quiet)(no-preserve-owner)md(make-directories)uH:p|i|t|F:v(verbose)o|[!pio][!pot][!pF]", TOYFLAG_BIN)) @@ -243,6 +242,7 @@ void cpio_main(void) continue; } + if (FLAG(no_preserve_owner)) st.st_uid = st.st_gid = 0; if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode)) st.st_size = 0; if (st.st_size >> 32) perror_msg("skipping >2G file '%s'", name); else { |