tools: add zip utility

One image requires a zip compressed image, so add the zip util found in
the packages feed, and extend it with some useful debian patches.

Signed-off-by: Mathias Kresin <dev@kresin.me>

tools/Makefile

@@ -33,7 +33,7 @@ tools-$(CONFIG_TARGET_mxs) += elftosb sdimage
 tools-$(CONFIG_TARGET_ar71xx) += lzma-old
 tools-$(CONFIG_TARGET_ar71xx)$(CONFIG_TARGET_ath79) += squashfs
 tools-$(CONFIG_USES_MINOR) += kernel2minor
-tools-y += lzma squashfs4
+tools-y += lzma squashfs4 zip
 tools-$(BUILD_B43_TOOLS) += b43-tools
 tools-$(BUILD_ISL) += isl
 tools-$(CONFIG_USE_SPARSE) += sparse

tools/zip/Makefile

@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2007-2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=zip
+PKG_REV:=30
+PKG_VERSION:=3.0
+
+PKG_SOURCE:=$(PKG_NAME)$(PKG_REV).tar.gz
+PKG_SOURCE_URL:=@SF/infozip
+PKG_HASH:=f0e8bb1f9b7eb0b01285495a2699df3a4b766784c1765a8f1aeedf63c0806369
+
+PKG_LICENSE:=BSD-4-Clause
+PKG_LICENSE_FILES:=LICENSE
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)/zip$(PKG_REV)
+HOST_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Compile
+	+$(HOST_MAKE_VARS) $(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) -I. -f unix/Makefile zip
+endef
+
+define Host/Install
+	$(INSTALL_DIR) $(STAGING_DIR_HOST)/bin/
+	$(INSTALL_BIN) $(HOST_BUILD_DIR)/zip $(STAGING_DIR_HOST)/bin/
+endef
+
+$(eval $(call HostBuild))
+#$(eval $(call BuildPackage,zip))

tools/zip/patches/001-unix-configure-borrow-the-LFS-test-from-autotools.patch

@@ -0,0 +1,89 @@
+From fc392c939b9a18959482f588aff0afc29dd6d30a Mon Sep 17 00:00:00 2001
+From: Romain Naour <romain.naour at openwide.fr>
+Date: Fri, 23 Jan 2015 22:20:18 +0100
+Subject: [PATCH 6/6] unix/configure: borrow the LFS test from autotools.
+
+Infozip's LFS check can't work for cross-compilation
+since it try to run a target's binary on the host system.
+
+Instead, use to LFS test used by autotools which is a
+compilation test.
+(see autotools/lib/autoconf/specific.m4)
+
+Reported-by: Richard Genoud <richard.genoud at gmail.com>
+Signed-off-by: Romain Naour <romain.naour at openwide.fr>
+---
+ configure |   46 +++++++++++++++-------------------------------
+ 1 file changed, 15 insertions(+), 31 deletions(-)
+
+--- a/unix/configure
++++ b/unix/configure
+@@ -399,9 +399,8 @@ else
+ fi
+ 
+ 
+-# Now we set the 64-bit file environment and check the size of off_t
+-# Added 11/4/2003 EG
+-# Revised 8/12/2004 EG
++# LFS check borrowed from autotools sources
++# lib/autoconf/specific.m4
+ 
+ echo Check for Large File Support
+ cat > conftest.c << _EOF_
+@@ -410,23 +409,19 @@ cat > conftest.c << _EOF_
+ # define _FILE_OFFSET_BITS 64       /* select default interface as 64 bit */
+ # define _LARGE_FILES        /* some OSes need this for 64-bit off_t */
+ #include <sys/types.h>
+-#include <sys/stat.h>
+-#include <unistd.h>
+-#include <stdio.h>
++
++ /* Check that off_t can represent 2**63 - 1 correctly.
++    We can't simply define LARGE_OFF_T to be 9223372036854775807,
++    since some C++ compilers masquerading as C compilers
++    incorrectly reject 9223372036854775807.  */
++#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
++		       && LARGE_OFF_T % 2147483647 == 1)
++		      ? 1 : -1];
++
+ int main()
+ {
+-  off_t offset;
+-  struct stat s;
+-  /* see if have 64-bit off_t */
+-  if (sizeof(offset) < 8)
+-    return 1;
+-  printf("  off_t is %d bytes\n", sizeof(off_t));
+-  /* see if have 64-bit stat */
+-  if (sizeof(s.st_size) < 8) {
+-    printf("  s.st_size is %d bytes\n", sizeof(s.st_size));
+-    return 2;
+-  }
+-  return 3;
++  return 0;
+ }
+ _EOF_
+ # compile it
+@@ -434,19 +429,8 @@ $CC -o conftest conftest.c >/dev/null 2>
+ if [ $? -ne 0 ]; then
+   echo -- no Large File Support
+ else
+-# run it
+-  ./conftest
+-  r=$?
+-  if [ $r -eq 1 ]; then
+-    echo -- no Large File Support - no 64-bit off_t
+-  elif [ $r -eq 2 ]; then
+-    echo -- no Large File Support - no 64-bit stat
+-  elif [ $r -eq 3 ]; then
+-    echo -- yes we have Large File Support!
+-    CFLAGS="${CFLAGS} -DLARGE_FILE_SUPPORT"
+-  else
+-    echo -- no Large File Support - conftest returned $r
+-  fi
++  echo -- yes we have Large File Support!
++  CFLAGS="${CFLAGS} -DLARGE_FILE_SUPPORT"
+ fi
+ 
+ 

tools/zip/patches/004-do-not-set-unwanted-cflags.patch

@@ -0,0 +1,15 @@
+From: Santiago Vila <sanvila@debian.org>
+Subject: Do not set unwanted CFLAGS, as it breaks DEB_BUILD_OPTIONS
+X-Debian-version: 2.32-1
+
+--- a/unix/configure
++++ b/unix/configure
+@@ -98,7 +98,7 @@ int main()
+ _EOF_
+       $CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
+       if test $? -eq 0; then
+-        CFLAGS_OPT='-O3'
++        # CFLAGS_OPT='-O3'
+         echo "  GNU C ($CFLAGS_OPT)"
+         # Special Mac OS X shared library "ld" option?
+         if test ` uname -s 2> /dev/null ` = 'Darwin'; then

tools/zip/patches/006-stack-markings-to-avoid-executable-stack.patch

@@ -0,0 +1,21 @@
+From: Kees Cook <kees@debian.org>
+Subject: put stack markings in i386 assembly to avoid executable stack
+Bug-Debian: http://bugs.debian.org/528280
+X-Debian-version: 3.0-2
+
+--- a/crc_i386.S
++++ b/crc_i386.S
+@@ -302,3 +302,5 @@ _crc32:                         /* ulg c
+ #endif /* i386 || _i386 || _I386 || __i386 */
+ 
+ #endif /* !USE_ZLIB && !CRC_TABLE_ONLY */
++.section .note.GNU-stack, "", @progbits
++.previous
+--- a/match.S
++++ b/match.S
+@@ -405,3 +405,5 @@ L__return:
+ #endif /* i386 || _I386 || _i386 || __i386  */
+ 
+ #endif /* !USE_ZLIB */
++.section .note.GNU-stack, "", @progbits
++.previous

tools/zip/patches/007-fclose-in-file-not-fclose-x.patch

@@ -0,0 +1,16 @@
+From: Christian Spieler
+Subject: zipnote.c: Close in_file instead of undefined file x
+Bug-Debian: http://bugs.debian.org/628594
+X-Debian-version: 3.0-4
+
+--- a/zipnote.c
++++ b/zipnote.c
+@@ -661,7 +661,7 @@ char **argv;            /* command line
+     if ((r = zipcopy(z)) != ZE_OK)
+       ziperr(r, "was copying an entry");
+   }
+-  fclose(x);
++  fclose(in_file);
+ 
+   /* Write central directory and end of central directory with new comments */
+   if ((c = zftello(y)) == (zoff_t)-1)    /* get start of central */

tools/zip/patches/008-hardening-build-fix-1.patch

@@ -0,0 +1,25 @@
+From: Santiago Vila <sanvila@debian.org>
+Subject: Use format specifier %s to print strings, not the string itself
+Bug-Debian: http://bugs.debian.org/673476
+X-Debian-version: 3.0-5
+
+--- a/zip.c
++++ b/zip.c
+@@ -1028,7 +1028,7 @@ local void help_extended()
+ 
+   for (i = 0; i < sizeof(text)/sizeof(char *); i++)
+   {
+-    printf(text[i]);
++    printf("%s", text[i]);
+     putchar('\n');
+   }
+ #ifdef DOS
+@@ -1225,7 +1225,7 @@ local void version_info()
+             CR_MAJORVER, CR_MINORVER, CR_BETA_VER, CR_VERSION_DATE);
+   for (i = 0; i < sizeof(cryptnote)/sizeof(char *); i++)
+   {
+-    printf(cryptnote[i]);
++    printf("%s", cryptnote[i]);
+     putchar('\n');
+   }
+   ++i;  /* crypt support means there IS at least one compilation option */

tools/zip/patches/009-hardening-build-fix-2.patch

@@ -0,0 +1,16 @@
+From: Santiago Vila <sanvila@debian.org>
+Subject: unix/configure: Take linking flags from the environment
+Bug-Debian: http://bugs.debian.org/673476
+X-Debian-version: 3.0-5
+
+--- a/unix/configure
++++ b/unix/configure
+@@ -18,7 +18,7 @@ trap "rm -f conftest* core a.out; exit 1
+ 
+ CC=${1-cc}
+ CFLAGS=${2-"-I. -DUNIX"}
+-LFLAGS1=''
++LFLAGS1=${LDFLAGS}
+ LFLAGS2=''
+ LN="ln -s"
+ 

tools/zip/patches/010-remove-build-date.patch

@@ -0,0 +1,15 @@
+From: Santiago Vila <sanvila@debian.org>
+Subject: Remove (optional) build date to make the build reproducible
+Bug-Debian: http://bugs.debian.org/779042
+
+--- a/unix/unix.c
++++ b/unix/unix.c
+@@ -1020,7 +1020,7 @@ void version_local()
+ 
+ 
+ /* Define the compile date string */
+-#ifdef __DATE__
++#if 0
+ #  define COMPILE_DATE " on " __DATE__
+ #else
+ #  define COMPILE_DATE ""