tar: do "short EOF" compat only if CONFIG_DESKTOP.

ash: add a comment about new minor bug

2 files changed, 12 insertions, 1 deletions

diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c
index 7493d910e..5a1f5948f 100644
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -90,15 +90,22 @@ char get_header_tar(archive_handle_t *archive_handle)
 
  again_after_align:
 
+#if ENABLE_DESKTOP
         i = full_read(archive_handle->src_fd, &tar, 512);
         /* if GNU tar sees EOF in above read, it says:
          * "tar: A lone zero block at N", where N = kilobyte
          * where EOF was met (not EOF block, actual EOF!),
-         * and tar will exit with error code 0! Mimic exit(0): */
+         * and tar will exit with error code 0.
+         * We will mimic exit(0), although we will not mimic
+         * the message and we don't check whether we indeed
+         * saw zero block directly before this. */
         if (i == 0)
                 xfunc_error_retval = 0;
         if (i != 512)
                 bb_error_msg_and_die("short read");
+#else
+        xread(archive_handle->src_fd, &tar, 512);
+#endif
         archive_handle->offset += 512;
 
         /* If there is no filename its an empty header */
diff --git a/shell/README b/shell/README
index f78ed9d18..17e2cb802 100644
--- a/shell/README
+++ b/shell/README
@@ -1,5 +1,9 @@
 Various bits of what is known about busybox shells, in no particular order.
 
+2008-02-14
+ash: does not restore tty pgrp if killed by HUP. Symptom: Midnigth Commander
+is backgrounded if you started ash under it, and then killed it with HUP.
+
 2007-11-23
 hush: fixed bogus glob handling; fixed exec <"$1"; added test and echo builtins