vapier      14/10/21 19:15:29

  Added:                busybox-1.22.1-zcat-no-ext.patch
  Log:
  Add zcat fix from upstream.
  
  (Portage version: 2.2.14_rc1/cvs/Linux x86_64, signed Manifest commit with 
key D2E96200)

Revision  Changes    Path
1.1                  sys-apps/busybox/files/busybox-1.22.1-zcat-no-ext.patch

file : 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-apps/busybox/files/busybox-1.22.1-zcat-no-ext.patch?rev=1.1&view=markup
plain: 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-apps/busybox/files/busybox-1.22.1-zcat-no-ext.patch?rev=1.1&content-type=text/plain

Index: busybox-1.22.1-zcat-no-ext.patch
===================================================================
>From 28dd64a0e1a9cffcde7799f2849b66c0e16bb9cc Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.li...@googlemail.com>
Date: Fri, 10 Jan 2014 14:06:57 +0100
Subject: [PATCH] libarchive: open_zipped() does not need to check extensions
 for e.g. gzip

We only need to check for signature-less extensions,
currently only .lzma. The rest can be happily autodetected.

This fixes "zcat FILE_WITHOUT_GZ_EXT" case, among others.

Signed-off-by: Denys Vlasenko <vda.li...@googlemail.com>
(cherry picked from commit 7c47b560a8fc97956dd8132bd7f1863d83c19866)
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
 archival/libarchive/open_transformer.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/archival/libarchive/open_transformer.c 
b/archival/libarchive/open_transformer.c
index 4e98264..1aeba13 100644
--- a/archival/libarchive/open_transformer.c
+++ b/archival/libarchive/open_transformer.c
@@ -182,27 +182,26 @@ int FAST_FUNC setup_unzip_on_fd(int fd, int 
fail_if_not_detected)
 
 int FAST_FUNC open_zipped(const char *fname)
 {
-       char *sfx;
        int fd;
 
        fd = open(fname, O_RDONLY);
        if (fd < 0)
                return fd;
 
-       sfx = strrchr(fname, '.');
-       if (sfx) {
-               sfx++;
-               if (ENABLE_FEATURE_SEAMLESS_LZMA && strcmp(sfx, "lzma") == 0)
-                       /* .lzma has no header/signature, just trust it */
+       if (ENABLE_FEATURE_SEAMLESS_LZMA) {
+               /* .lzma has no header/signature, can only detect it by 
extension */
+               char *sfx = strrchr(fname, '.');
+               if (sfx && strcmp(sfx+1, "lzma") == 0) {
                        open_transformer_with_sig(fd, unpack_lzma_stream, 
"unlzma");
-               else
-               if ((ENABLE_FEATURE_SEAMLESS_GZ && strcmp(sfx, "gz") == 0)
-                || (ENABLE_FEATURE_SEAMLESS_BZ2 && strcmp(sfx, "bz2") == 0)
-                || (ENABLE_FEATURE_SEAMLESS_XZ && strcmp(sfx, "xz") == 0)
-               ) {
-                       setup_unzip_on_fd(fd, /*fail_if_not_detected:*/ 1);
+                       return fd;
                }
        }
+       if ((ENABLE_FEATURE_SEAMLESS_GZ)
+        || (ENABLE_FEATURE_SEAMLESS_BZ2)
+        || (ENABLE_FEATURE_SEAMLESS_XZ)
+       ) {
+               setup_unzip_on_fd(fd, /*fail_if_not_detected:*/ 1);
+       }
 
        return fd;
 }
-- 
2.1.2





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