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Add gpgtar backport

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This commit is contained in:
Werner Koch 2011-01-11 19:35:05 +01:00
parent c496112017
commit 4d364ade61
17 changed files with 2816 additions and 116 deletions
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1
.gitignore vendored
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@ -133,3 +133,4 @@ tools/make-dns-cert
tools/mk-tdata tools/mk-tdata
tools/symcryptrun tools/symcryptrun
tools/watchgnupg tools/watchgnupg
tools/gpgtar

3
ChangeLog
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@ -1,5 +1,8 @@
2011-01-11 Werner Koch <wk@g10code.com> 2011-01-11 Werner Koch <wk@g10code.com>
* configure.ac: Add option --enable-gpgtar.
(AC_CHECK_FUNCS): Add stat.
* autogen.sh <w32>: Remove superfluous --without-included-gettext. * autogen.sh <w32>: Remove superfluous --without-included-gettext.
2011-01-10 Werner Koch <wk@g10code.com> 2011-01-10 Werner Koch <wk@g10code.com>

2
Makefile.am
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@ -20,7 +20,7 @@
ACLOCAL_AMFLAGS = -I m4 -I gl/m4 ACLOCAL_AMFLAGS = -I m4 -I gl/m4
AUTOMAKE_OPTIONS = dist-bzip2 no-dist-gzip AUTOMAKE_OPTIONS = dist-bzip2 no-dist-gzip
DISTCHECK_CONFIGURE_FLAGS = --enable-symcryptrun --enable-mailto DISTCHECK_CONFIGURE_FLAGS = --enable-symcryptrun --enable-mailto --enable-gpgtar
EXTRA_DIST = scripts/config.rpath autogen.sh README.SVN EXTRA_DIST = scripts/config.rpath autogen.sh README.SVN
DISTCLEANFILES = g10defs.h DISTCLEANFILES = g10defs.h

8
NEWS
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@ -1,12 +1,12 @@
Noteworthy changes in version 2.0.17 (unreleased) Noteworthy changes in version 2.0.17 (unreleased)
------------------------------------------------- -------------------------------------------------
* Fixed output of "gpgconf --check-options".
* gpg-agent now tests for a newly created gpg-agent.conf after a HUP.
* Allow more hash algorithms with the OpenPGP v2 card. * Allow more hash algorithms with the OpenPGP v2 card.
* The gpg-agent now tests for a new gpg-agent.conf on a HUP.
* Fixed output of "gpgconf --check-options".
* Fixed a bug where Scdaemon sends a signal to Gpg-agent running in * Fixed a bug where Scdaemon sends a signal to Gpg-agent running in
non-daemon mode. non-daemon mode.

1
autogen.sh
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@ -86,6 +86,7 @@ if test "$1" = "--build-w32"; then
./configure --enable-maintainer-mode --prefix=${w32root} \ ./configure --enable-maintainer-mode --prefix=${w32root} \
--host=${host} --build=${build} \ --host=${host} --build=${build} \
--enable-gpgtar \
--with-gpg-error-prefix=${w32root} \ --with-gpg-error-prefix=${w32root} \
--with-ksba-prefix=${w32root} \ --with-ksba-prefix=${w32root} \
--with-libgcrypt-prefix=${w32root} \ --with-libgcrypt-prefix=${w32root} \

11
common/ChangeLog
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@ -1,3 +1,14 @@
2011-01-11 Werner Koch <wk@g10code.com>
Estream changes as used gnupg master from 2010-07-19.
* estream.c (es_fname_get, es_fname_set): New.
(fname_set_internal): New.
(struct estream_internal): Add fields printable_fname and
printable_fname_inuse.
(_es_get_std_stream): Set stream name.
(es_fopen, es_freopen, es_deinitialize): Set fname.
2011-01-10 Thomas Mraz <t8m@centrum.cz> (wk) 2011-01-10 Thomas Mraz <t8m@centrum.cz> (wk)
* pka.c (get_pka_info) [!USE_ADNS]: Turn ANSWER into a union to * pka.c (get_pka_info) [!USE_ADNS]: Turn ANSWER into a union to

546
common/estream.c
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File diff suppressed because it is too large Load Diff

69
common/estream.h
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@ -1,5 +1,5 @@
/* estream.h - Extended stream I/O Library /* estream.h - Extended stream I/O Library
* Copyright (C) 2004, 2005, 2006, 2007 g10 Code GmbH * Copyright (C) 2004, 2005, 2006, 2007, 2010 g10 Code GmbH
* *
* This file is part of Libestream. * This file is part of Libestream.
* *
@ -15,6 +15,40 @@
* *
* You should have received a copy of the GNU General Public License * You should have received a copy of the GNU General Public License
* along with Libestream; if not, see <http://www.gnu.org/licenses/>. * along with Libestream; if not, see <http://www.gnu.org/licenses/>.
*
* ALTERNATIVELY, Libestream may be distributed under the terms of the
* following license, in which case the provisions of this license are
* required INSTEAD OF the GNU General Public License. If you wish to
* allow use of your version of this file only under the terms of the
* GNU General Public License, and not to allow others to use your
* version of this file under the terms of the following license,
* indicate your decision by deleting this paragraph and the license
* below.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/ */
#ifndef ESTREAM_H #ifndef ESTREAM_H
@ -46,6 +80,8 @@
#define es_fdopen_nc _ESTREAM_PREFIX(es_fdopen_nc) #define es_fdopen_nc _ESTREAM_PREFIX(es_fdopen_nc)
#define es_fpopen _ESTREAM_PREFIX(es_fpopen) #define es_fpopen _ESTREAM_PREFIX(es_fpopen)
#define es_fpopen_nc _ESTREAM_PREFIX(es_fpopen_nc) #define es_fpopen_nc _ESTREAM_PREFIX(es_fpopen_nc)
#define _es_set_std_fd _ESTREAM_PREFIX(_es_set_std_fd)
#define _es_get_std_stream _ESTREAM_PREFIX(_es_get_std_stream)
#define es_freopen _ESTREAM_PREFIX(es_freopen) #define es_freopen _ESTREAM_PREFIX(es_freopen)
#define es_fopencookie _ESTREAM_PREFIX(es_fopencookie) #define es_fopencookie _ESTREAM_PREFIX(es_fopencookie)
#define es_fclose _ESTREAM_PREFIX(es_fclose) #define es_fclose _ESTREAM_PREFIX(es_fclose)
@ -79,16 +115,21 @@
#define es_fwrite _ESTREAM_PREFIX(es_fwrite) #define es_fwrite _ESTREAM_PREFIX(es_fwrite)
#define es_fgets _ESTREAM_PREFIX(es_fgets) #define es_fgets _ESTREAM_PREFIX(es_fgets)
#define es_fputs _ESTREAM_PREFIX(es_fputs) #define es_fputs _ESTREAM_PREFIX(es_fputs)
#define es_fputs_unlocked _ESTREAM_PREFIX(es_fputs_unlocked)
#define es_getline _ESTREAM_PREFIX(es_getline) #define es_getline _ESTREAM_PREFIX(es_getline)
#define es_read_line _ESTREAM_PREFIX(es_read_line) #define es_read_line _ESTREAM_PREFIX(es_read_line)
#define es_free _ESTREAM_PREFIX(es_free) #define es_free _ESTREAM_PREFIX(es_free)
#define es_fprf _ESTREAM_PREFIX(es_fprf) #define es_fprintf _ESTREAM_PREFIX(es_fprintf)
#define es_vfprf _ESTREAM_PREFIX(es_vfprf) #define es_fprintf_unlocked _ESTREAM_PREFIX(es_fprintf_unlocked)
#define es_vfprintf _ESTREAM_PREFIX(es_vfprint)
#define es_vfprintf_unlocked _ESTREAM_PREFIX(es_vfprint_unlocked)
#define es_setvbuf _ESTREAM_PREFIX(es_setvbuf) #define es_setvbuf _ESTREAM_PREFIX(es_setvbuf)
#define es_setbuf _ESTREAM_PREFIX(es_setbuf) #define es_setbuf _ESTREAM_PREFIX(es_setbuf)
#define es_tmpfile _ESTREAM_PREFIX(es_tmpfile) #define es_tmpfile _ESTREAM_PREFIX(es_tmpfile)
#define es_opaque_set _ESTREAM_PREFIX(es_opaque_set) #define es_opaque_set _ESTREAM_PREFIX(es_opaque_set)
#define es_opaque_get _ESTREAM_PREFIX(es_opaque_get) #define es_opaque_get _ESTREAM_PREFIX(es_opaque_get)
#define es_fname_set _ESTREAM_PREFIX(es_fname_set)
#define es_fname_get _ESTREAM_PREFIX(es_fname_get)
#define es_write_sanitized_utf8_buffer \ #define es_write_sanitized_utf8_buffer \
_ESTREAM_PREFIX(es_write_sanitized_utf8_buffer) _ESTREAM_PREFIX(es_write_sanitized_utf8_buffer)
#endif /*_ESTREAM_EXT_SYM_PREFIX*/ #endif /*_ESTREAM_EXT_SYM_PREFIX*/
@ -213,6 +254,14 @@ int es_fclose (estream_t stream);
int es_fileno (estream_t stream); int es_fileno (estream_t stream);
int es_fileno_unlocked (estream_t stream); int es_fileno_unlocked (estream_t stream);
void _es_set_std_fd (int no, int fd);
estream_t _es_get_std_stream (int fd);
#define es_stdin _es_get_std_stream (0)
#define es_stdout _es_get_std_stream (1)
#define es_stderr _es_get_std_stream (2)
void es_flockfile (estream_t stream); void es_flockfile (estream_t stream);
int es_ftrylockfile (estream_t stream); int es_ftrylockfile (estream_t stream);
void es_funlockfile (estream_t stream); void es_funlockfile (estream_t stream);
@ -277,6 +326,8 @@ size_t es_fwrite (const void *ES__RESTRICT ptr, size_t size, size_t memb,
char *es_fgets (char *ES__RESTRICT s, int n, estream_t ES__RESTRICT stream); char *es_fgets (char *ES__RESTRICT s, int n, estream_t ES__RESTRICT stream);
int es_fputs (const char *ES__RESTRICT s, estream_t ES__RESTRICT stream); int es_fputs (const char *ES__RESTRICT s, estream_t ES__RESTRICT stream);
int es_fputs_unlocked (const char *ES__RESTRICT s,
estream_t ES__RESTRICT stream);
ssize_t es_getline (char *ES__RESTRICT *ES__RESTRICT lineptr, ssize_t es_getline (char *ES__RESTRICT *ES__RESTRICT lineptr,
size_t *ES__RESTRICT n, size_t *ES__RESTRICT n,
@ -289,9 +340,17 @@ void es_free (void *a);
int es_fprintf (estream_t ES__RESTRICT stream, int es_fprintf (estream_t ES__RESTRICT stream,
const char *ES__RESTRICT format, ...) const char *ES__RESTRICT format, ...)
_ESTREAM_GCC_A_PRINTF(2,3); _ESTREAM_GCC_A_PRINTF(2,3);
int es_fprintf_unlocked (estream_t ES__RESTRICT stream,
const char *ES__RESTRICT format, ...)
_ESTREAM_GCC_A_PRINTF(2,3);
int es_vfprintf (estream_t ES__RESTRICT stream, int es_vfprintf (estream_t ES__RESTRICT stream,
const char *ES__RESTRICT format, va_list ap) const char *ES__RESTRICT format, va_list ap)
_ESTREAM_GCC_A_PRINTF(2,0); _ESTREAM_GCC_A_PRINTF(2,0);
int es_vfprintf_unlocked (estream_t ES__RESTRICT stream,
const char *ES__RESTRICT format, va_list ap)
_ESTREAM_GCC_A_PRINTF(2,0);
int es_setvbuf (estream_t ES__RESTRICT stream, int es_setvbuf (estream_t ES__RESTRICT stream,
char *ES__RESTRICT buf, int mode, size_t size); char *ES__RESTRICT buf, int mode, size_t size);
void es_setbuf (estream_t ES__RESTRICT stream, char *ES__RESTRICT buf); void es_setbuf (estream_t ES__RESTRICT stream, char *ES__RESTRICT buf);
@ -301,6 +360,9 @@ estream_t es_tmpfile (void);
void es_opaque_set (estream_t ES__RESTRICT stream, void *ES__RESTRICT opaque); void es_opaque_set (estream_t ES__RESTRICT stream, void *ES__RESTRICT opaque);
void *es_opaque_get (estream_t stream); void *es_opaque_get (estream_t stream);
void es_fname_set (estream_t stream, const char *fname);
const char *es_fname_get (estream_t stream);
#ifdef GNUPG_MAJOR_VERSION #ifdef GNUPG_MAJOR_VERSION
int es_write_sanitized_utf8_buffer (estream_t stream, int es_write_sanitized_utf8_buffer (estream_t stream,
@ -309,7 +371,6 @@ int es_write_sanitized_utf8_buffer (estream_t stream,
size_t *bytes_written); size_t *bytes_written);
#endif /*GNUPG_MAJOR_VERSION*/ #endif /*GNUPG_MAJOR_VERSION*/
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

6
configure.ac
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@ -87,6 +87,8 @@ GNUPG_BUILD_PROGRAM(scdaemon, yes)
GNUPG_BUILD_PROGRAM(tools, yes) GNUPG_BUILD_PROGRAM(tools, yes)
GNUPG_BUILD_PROGRAM(doc, yes) GNUPG_BUILD_PROGRAM(doc, yes)
GNUPG_BUILD_PROGRAM(symcryptrun, no) GNUPG_BUILD_PROGRAM(symcryptrun, no)
GNUPG_BUILD_PROGRAM(gpgtar, no)
AC_SUBST(PACKAGE) AC_SUBST(PACKAGE)
AC_SUBST(PACKAGE_GT) AC_SUBST(PACKAGE_GT)
@ -1108,7 +1110,7 @@ AC_CHECK_FUNCS([unsetenv fcntl ftruncate])
AC_CHECK_FUNCS([gettimeofday getrusage getrlimit setrlimit clock_gettime]) AC_CHECK_FUNCS([gettimeofday getrusage getrlimit setrlimit clock_gettime])
AC_CHECK_FUNCS([atexit raise getpagesize strftime nl_langinfo setlocale]) AC_CHECK_FUNCS([atexit raise getpagesize strftime nl_langinfo setlocale])
AC_CHECK_FUNCS([waitpid wait4 sigaction sigprocmask pipe stat getaddrinfo]) AC_CHECK_FUNCS([waitpid wait4 sigaction sigprocmask pipe stat getaddrinfo])
AC_CHECK_FUNCS([ttyname rand ftello fsync]) AC_CHECK_FUNCS([ttyname rand ftello fsync stat])
AC_CHECK_TYPES([struct sigaction, sigset_t],,,[#include <signal.h>]) AC_CHECK_TYPES([struct sigaction, sigset_t],,,[#include <signal.h>])
@ -1412,6 +1414,7 @@ AM_CONDITIONAL(BUILD_SCDAEMON, test "$build_scdaemon" = "yes")
AM_CONDITIONAL(BUILD_TOOLS, test "$build_tools" = "yes") AM_CONDITIONAL(BUILD_TOOLS, test "$build_tools" = "yes")
AM_CONDITIONAL(BUILD_DOC, test "$build_doc" = "yes") AM_CONDITIONAL(BUILD_DOC, test "$build_doc" = "yes")
AM_CONDITIONAL(BUILD_SYMCRYPTRUN, test "$build_symcryptrun" = "yes") AM_CONDITIONAL(BUILD_SYMCRYPTRUN, test "$build_symcryptrun" = "yes")
AM_CONDITIONAL(BUILD_GPGTAR, test "$build_gpgtar" = "yes")
AM_CONDITIONAL(RUN_GPG_TESTS, AM_CONDITIONAL(RUN_GPG_TESTS,
test x$cross_compiling = xno -a "$build_gpg" = yes ) test x$cross_compiling = xno -a "$build_gpg" = yes )
@ -1521,6 +1524,7 @@ echo "
S/MIME: $build_gpgsm S/MIME: $build_gpgsm
Agent: $build_agent $build_agent_threaded Agent: $build_agent $build_agent_threaded
Smartcard: $build_scdaemon $build_scdaemon_extra Smartcard: $build_scdaemon $build_scdaemon_extra
Gpgtar: $build_gpgtar
Protect tool: $show_gnupg_protect_tool_pgm Protect tool: $show_gnupg_protect_tool_pgm
Default agent: $show_gnupg_agent_pgm Default agent: $show_gnupg_agent_pgm

5
po/.gitattributes vendored
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@ -1,2 +1,7 @@
# You should add
#[filter "cleanpo"]
# clean = "awk '/^\"POT-Creation-Date:/&&!s{s=1;next};!/^#: /{print}'"
# to your config file.
/??.po filter=cleanpo /??.po filter=cleanpo
/??_??.po filter=cleanpo /??_??.po filter=cleanpo

8
tools/ChangeLog
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@ -1,3 +1,11 @@
2011-01-11 Werner Koch <wk@g10code.com>
* gpgtar.c, gpgtar.h, gpgtar-create.c, gpgtar-extract.c
* gpgtar-list.c: New. Take from GnuPG master and add missing
functions.
* Makefile.am (bin_PROGRAMS): Add gpgtar.
(gpgtar_SOURCES, gpgtar_CFLAGS, gpgtar_LDADD): New.
2010-08-23 Werner Koch <wk@g10code.com> 2010-08-23 Werner Koch <wk@g10code.com>
* gpgconf-comp.c (retrieve_options_from_program) * gpgconf-comp.c (retrieve_options_from_program)

18
tools/Makefile.am
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@ -42,7 +42,14 @@ else
symcryptrun = symcryptrun =
endif endif
bin_PROGRAMS = gpgconf gpg-connect-agent gpgkey2ssh ${symcryptrun} if BUILD_GPGTAR
gpgtar = gpgtar
else
gpgtar =
endif
bin_PROGRAMS = gpgconf gpg-connect-agent gpgkey2ssh ${symcryptrun} ${gpgtar}
if !HAVE_W32_SYSTEM if !HAVE_W32_SYSTEM
bin_PROGRAMS += watchgnupg gpgparsemail bin_PROGRAMS += watchgnupg gpgparsemail
endif endif
@ -99,6 +106,15 @@ gpg_check_pattern_LDADD = $(common_libs) $(LIBGCRYPT_LIBS) $(GPG_ERROR_LIBS) \
$(LIBINTL) $(LIBICONV) $(W32SOCKLIBS) $(LIBINTL) $(LIBICONV) $(W32SOCKLIBS)
endif endif
gpgtar_SOURCES = \
gpgtar.c gpgtar.h \
gpgtar-create.c \
gpgtar-extract.c \
gpgtar-list.c \
no-libgcrypt.c
gpgtar_CFLAGS = $(GPG_ERROR_CFLAGS) $(PTH_CFLAGS)
gpgtar_LDADD = $(common_libs) $(GPG_ERROR_LIBS) $(NETLIBS) $(W32SOCKLIBS)
# Make sure that all libs are build before we use them. This is # Make sure that all libs are build before we use them. This is
# important for things like make -j2. # important for things like make -j2.
$(PROGRAMS): $(common_libs) $(pwquery_libs) ../common/libgpgrl.a $(PROGRAMS): $(common_libs) $(pwquery_libs) ../common/libgpgrl.a

903
tools/gpgtar-create.c Normal file
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@ -0,0 +1,903 @@
/* gpgtar-create.c - Create a TAR archive
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#ifdef HAVE_W32_SYSTEM
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <fcntl.h> /* for setmode() */
#else /*!HAVE_W32_SYSTEM*/
# include <unistd.h>
# include <pwd.h>
# include <grp.h>
#endif /*!HAVE_W32_SYSTEM*/
#include <assert.h>
#include "i18n.h"
#include "../common/sysutils.h"
#include "gpgtar.h"
#ifndef HAVE_LSTAT
#define lstat(a,b) stat ((a), (b))
#endif
/* Object to control the file scanning. */
struct scanctrl_s;
typedef struct scanctrl_s *scanctrl_t;
struct scanctrl_s
{
tar_header_t flist;
tar_header_t *flist_tail;
int nestlevel;
};
/* Given a fresh header object HDR with only the name field set, try
to gather all available info. This is the W32 version. */
#ifdef HAVE_W32_SYSTEM
static gpg_error_t
fillup_entry_w32 (tar_header_t hdr)
{
char *p;
wchar_t *wfname;
WIN32_FILE_ATTRIBUTE_DATA fad;
DWORD attr;
for (p=hdr->name; *p; p++)
if (*p == '/')
*p = '\\';
wfname = utf8_to_wchar (hdr->name);
for (p=hdr->name; *p; p++)
if (*p == '\\')
*p = '/';
if (!wfname)
{
log_error ("error utf8-ing `%s': %s\n", hdr->name, w32_strerror (-1));
return gpg_error_from_syserror ();
}
if (!GetFileAttributesExW (wfname, GetFileExInfoStandard, &fad))
{
log_error ("error stat-ing `%s': %s\n", hdr->name, w32_strerror (-1));
xfree (wfname);
return gpg_error_from_syserror ();
}
xfree (wfname);
attr = fad.dwFileAttributes;
if ((attr & FILE_ATTRIBUTE_NORMAL))
hdr->typeflag = TF_REGULAR;
else if ((attr & FILE_ATTRIBUTE_DIRECTORY))
hdr->typeflag = TF_DIRECTORY;
else if ((attr & FILE_ATTRIBUTE_DEVICE))
hdr->typeflag = TF_NOTSUP;
else if ((attr & (FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_TEMPORARY)))
hdr->typeflag = TF_NOTSUP;
else
hdr->typeflag = TF_REGULAR;
/* Map some attributes to USTAR defined mode bits. */
hdr->mode = 0640; /* User may read and write, group only read. */
if ((attr & FILE_ATTRIBUTE_DIRECTORY))
hdr->mode |= 0110; /* Dirs are user and group executable. */
if ((attr & FILE_ATTRIBUTE_READONLY))
hdr->mode &= ~0200; /* Clear the user write bit. */
if ((attr & FILE_ATTRIBUTE_HIDDEN))
hdr->mode &= ~0707; /* Clear all user and other bits. */
if ((attr & FILE_ATTRIBUTE_SYSTEM))
hdr->mode |= 0004; /* Make it readable by other. */
/* Only set the size for a regular file. */
if (hdr->typeflag == TF_REGULAR)
hdr->size = (fad.nFileSizeHigh * (unsigned long long)(MAXDWORD+1)
+ fad.nFileSizeLow);
hdr->mtime = (((unsigned long long)fad.ftLastWriteTime.dwHighDateTime << 32)
| fad.ftLastWriteTime.dwLowDateTime);
if (!hdr->mtime)
hdr->mtime = (((unsigned long long)fad.ftCreationTime.dwHighDateTime << 32)
| fad.ftCreationTime.dwLowDateTime);
hdr->mtime -= 116444736000000000ULL; /* The filetime epoch is 1601-01-01. */
hdr->mtime /= 10000000; /* Convert from 0.1us to seconds. */
return 0;
}
#endif /*HAVE_W32_SYSTEM*/
/* Given a fresh header obje`<ct HDR with only the name field set, try
to gather all available info. This is the POSIX version. */
#ifndef HAVE_W32_SYSTEM
static gpg_error_t
fillup_entry_posix (tar_header_t hdr)
{
gpg_error_t err;
struct stat sbuf;
if (lstat (hdr->name, &sbuf))
{
err = gpg_error_from_syserror ();
log_error ("error stat-ing `%s': %s\n", hdr->name, gpg_strerror (err));
return err;
}
if (S_ISREG (sbuf.st_mode))
hdr->typeflag = TF_REGULAR;
else if (S_ISDIR (sbuf.st_mode))
hdr->typeflag = TF_DIRECTORY;
else if (S_ISCHR (sbuf.st_mode))
hdr->typeflag = TF_CHARDEV;
else if (S_ISBLK (sbuf.st_mode))
hdr->typeflag = TF_BLOCKDEV;
else if (S_ISFIFO (sbuf.st_mode))
hdr->typeflag = TF_FIFO;
else if (S_ISLNK (sbuf.st_mode))
hdr->typeflag = TF_SYMLINK;
else
hdr->typeflag = TF_NOTSUP;
/* FIXME: Save DEV and INO? */
/* Set the USTAR defined mode bits using the system macros. */
if (sbuf.st_mode & S_IRUSR)
hdr->mode |= 0400;
if (sbuf.st_mode & S_IWUSR)
hdr->mode |= 0200;
if (sbuf.st_mode & S_IXUSR)
hdr->mode |= 0100;
if (sbuf.st_mode & S_IRGRP)
hdr->mode |= 0040;
if (sbuf.st_mode & S_IWGRP)
hdr->mode |= 0020;
if (sbuf.st_mode & S_IXGRP)
hdr->mode |= 0010;
if (sbuf.st_mode & S_IROTH)
hdr->mode |= 0004;
if (sbuf.st_mode & S_IWOTH)
hdr->mode |= 0002;
if (sbuf.st_mode & S_IXOTH)
hdr->mode |= 0001;
#ifdef S_IXUID
if (sbuf.st_mode & S_IXUID)
hdr->mode |= 04000;
#endif
#ifdef S_IXGID
if (sbuf.st_mode & S_IXGID)
hdr->mode |= 02000;
#endif
#ifdef S_ISVTX
if (sbuf.st_mode & S_ISVTX)
hdr->mode |= 01000;
#endif
hdr->nlink = sbuf.st_nlink;
hdr->uid = sbuf.st_uid;
hdr->gid = sbuf.st_gid;
/* Only set the size for a regular file. */
if (hdr->typeflag == TF_REGULAR)
hdr->size = sbuf.st_size;
hdr->mtime = sbuf.st_mtime;
return 0;
}
#endif /*!HAVE_W32_SYSTEM*/
/* Add a new entry. The name of a director entry is ENTRYNAME; if
that is NULL, DNAME is the name of the directory itself. Under
Windows ENTRYNAME shall have backslashes replaced by standard
slashes. */
static gpg_error_t
add_entry (const char *dname, const char *entryname, scanctrl_t scanctrl)
{
gpg_error_t err;
tar_header_t hdr;
char *p;
size_t dnamelen = strlen (dname);
assert (dnamelen);
hdr = xtrycalloc (1, sizeof *hdr + dnamelen + 1
+ (entryname? strlen (entryname) : 0) + 1);
if (!hdr)
return gpg_error_from_syserror ();
p = stpcpy (hdr->name, dname);
if (entryname)
{
if (dname[dnamelen-1] != '/')
*p++ = '/';
strcpy (p, entryname);
}
else
{
if (hdr->name[dnamelen-1] == '/')
hdr->name[dnamelen-1] = 0;
}
#ifdef HAVE_DOSISH_SYSTEM
err = fillup_entry_w32 (hdr);
#else
err = fillup_entry_posix (hdr);
#endif
if (err)
xfree (hdr);
else
{
if (opt.verbose)
gpgtar_print_header (hdr, es_stderr);
*scanctrl->flist_tail = hdr;
scanctrl->flist_tail = &hdr->next;
}
return 0;
}
static gpg_error_t
scan_directory (const char *dname, scanctrl_t scanctrl)
{
gpg_error_t err = 0;
#ifdef HAVE_W32_SYSTEM
WIN32_FIND_DATAW fi;
HANDLE hd = INVALID_HANDLE_VALUE;
char *p;
if (!*dname)
return 0; /* An empty directory name has no entries. */
{
char *fname;
wchar_t *wfname;
fname = xtrymalloc (strlen (dname) + 2 + 2 + 1);
if (!fname)
{
err = gpg_error_from_syserror ();
goto leave;
}
if (!strcmp (dname, "/"))
strcpy (fname, "/*"); /* Trailing slash is not allowed. */
else if (!strcmp (dname, "."))
strcpy (fname, "*");
else if (*dname && dname[strlen (dname)-1] == '/')
strcpy (stpcpy (fname, dname), "*");
else if (*dname && dname[strlen (dname)-1] != '*')
strcpy (stpcpy (fname, dname), "/*");
else
strcpy (fname, dname);
for (p=fname; *p; p++)
if (*p == '/')
*p = '\\';
wfname = utf8_to_wchar (fname);
xfree (fname);
if (!wfname)
{
err = gpg_error_from_syserror ();
log_error (_("error reading directory `%s': %s\n"),
dname, gpg_strerror (err));
goto leave;
}
hd = FindFirstFileW (wfname, &fi);
if (hd == INVALID_HANDLE_VALUE)
{
err = gpg_error_from_syserror ();
log_error (_("error reading directory `%s': %s\n"),
dname, w32_strerror (-1));
xfree (wfname);
goto leave;
}
xfree (wfname);
}
do
{
char *fname = wchar_to_utf8 (fi.cFileName);
if (!fname)
{
err = gpg_error_from_syserror ();
log_error ("error utf8-ing filename: %s\n", w32_strerror (-1));
break;
}
for (p=fname; *p; p++)
if (*p == '\\')
*p = '/';
if (!strcmp (fname, "." ) || !strcmp (fname, ".."))
err = 0; /* Skip self and parent dir entry. */
else if (!strncmp (dname, "./", 2) && dname[2])
err = add_entry (dname+2, fname, scanctrl);
else
err = add_entry (dname, fname, scanctrl);
xfree (fname);
}
while (!err && FindNextFileW (hd, &fi));
if (err)
;
else if (GetLastError () == ERROR_NO_MORE_FILES)
err = 0;
else
{
err = gpg_error_from_syserror ();
log_error (_("error reading directory `%s': %s\n"),
dname, w32_strerror (-1));
}
leave:
if (hd != INVALID_HANDLE_VALUE)
FindClose (hd);
#else /*!HAVE_W32_SYSTEM*/
DIR *dir;
struct dirent *de;
if (!*dname)
return 0; /* An empty directory name has no entries. */
dir = opendir (dname);
if (!dir)
{
err = gpg_error_from_syserror ();
log_error (_("error reading directory `%s': %s\n"),
dname, gpg_strerror (err));
return err;
}
while ((de = readdir (dir)))
{
if (!strcmp (de->d_name, "." ) || !strcmp (de->d_name, ".."))
continue; /* Skip self and parent dir entry. */
err = add_entry (dname, de->d_name, scanctrl);
if (err)
goto leave;
}
leave:
closedir (dir);
#endif /*!HAVE_W32_SYSTEM*/
return err;
}
static gpg_error_t
scan_recursive (const char *dname, scanctrl_t scanctrl)
{
gpg_error_t err = 0;
tar_header_t hdr, *start_tail, *stop_tail;
if (scanctrl->nestlevel > 200)
{
log_error ("directories too deeply nested\n");
return gpg_error (GPG_ERR_RESOURCE_LIMIT);
}
scanctrl->nestlevel++;
assert (scanctrl->flist_tail);
start_tail = scanctrl->flist_tail;
scan_directory (dname, scanctrl);
stop_tail = scanctrl->flist_tail;
hdr = *start_tail;
for (; hdr && hdr != *stop_tail; hdr = hdr->next)
if (hdr->typeflag == TF_DIRECTORY)
{
if (opt.verbose > 1)
log_info ("scanning directory `%s'\n", hdr->name);
scan_recursive (hdr->name, scanctrl);
}
scanctrl->nestlevel--;
return err;
}
/* Returns true if PATTERN is acceptable. */
static int
pattern_valid_p (const char *pattern)
{
if (!*pattern)
return 0;
if (*pattern == '.' && pattern[1] == '.')
return 0;
if (*pattern == '/' || *pattern == DIRSEP_C)
return 0; /* Absolute filenames are not supported. */
#ifdef HAVE_DRIVE_LETTERS
if (((*pattern >= 'a' && *pattern <= 'z')
|| (*pattern >= 'A' && *pattern <= 'Z'))
&& pattern[1] == ':')
return 0; /* Drive letter are not allowed either. */
#endif /*HAVE_DRIVE_LETTERS*/
return 1; /* Okay. */
}
static void
store_xoctal (char *buffer, size_t length, unsigned long long value)
{
char *p, *pend;
size_t n;
unsigned long long v;
assert (length > 1);
v = value;
n = length;
p = pend = buffer + length;
*--p = 0; /* Nul byte. */
n--;
do
{
*--p = '0' + (v % 8);
v /= 8;
n--;
}
while (v && n);
if (!v)
{
/* Pad. */
for ( ; n; n--)
*--p = '0';
}
else /* Does not fit into the field. Store as binary number. */
{
v = value;
n = length;
p = pend = buffer + length;
do
{
*--p = v;
v /= 256;
n--;
}
while (v && n);
if (!v)
{
/* Pad. */
for ( ; n; n--)
*--p = 0;
if (*p & 0x80)
BUG ();
*p |= 0x80; /* Set binary flag. */
}
else
BUG ();
}
}
static void
store_uname (char *buffer, size_t length, unsigned long uid)
{
static int initialized;
static unsigned long lastuid;
static char lastuname[32];
if (!initialized || uid != lastuid)
{
#ifdef HAVE_W32_SYSTEM
mem2str (lastuname, uid? "user":"root", sizeof lastuname);
#else
struct passwd *pw = getpwuid (uid);
lastuid = uid;
initialized = 1;
if (pw)
mem2str (lastuname, pw->pw_name, sizeof lastuname);
else
{
log_info ("failed to get name for uid %lu\n", uid);
*lastuname = 0;
}
#endif
}
mem2str (buffer, lastuname, length);
}
static void
store_gname (char *buffer, size_t length, unsigned long gid)
{
static int initialized;
static unsigned long lastgid;
static char lastgname[32];
if (!initialized || gid != lastgid)
{
#ifdef HAVE_W32_SYSTEM
mem2str (lastgname, gid? "users":"root", sizeof lastgname);
#else
struct group *gr = getgrgid (gid);
lastgid = gid;
initialized = 1;
if (gr)
mem2str (lastgname, gr->gr_name, sizeof lastgname);
else
{
log_info ("failed to get name for gid %lu\n", gid);
*lastgname = 0;
}
#endif
}
mem2str (buffer, lastgname, length);
}
static gpg_error_t
build_header (void *record, tar_header_t hdr)
{
gpg_error_t err;
struct ustar_raw_header *raw = record;
size_t namelen, n;
unsigned long chksum;
unsigned char *p;
memset (record, 0, RECORDSIZE);
/* Store name and prefix. */
namelen = strlen (hdr->name);
if (namelen < sizeof raw->name)
memcpy (raw->name, hdr->name, namelen);
else
{
n = (namelen < sizeof raw->prefix)? namelen : sizeof raw->prefix;
for (n--; n ; n--)
if (hdr->name[n] == '/')
break;
if (namelen - n < sizeof raw->name)
{
/* Note that the N is < sizeof prefix and that the
delimiting slash is not stored. */
memcpy (raw->prefix, hdr->name, n);
memcpy (raw->name, hdr->name+n+1, namelen - n);
}
else
{
err = gpg_error (GPG_ERR_TOO_LARGE);
log_error ("error storing file `%s': %s\n",
hdr->name, gpg_strerror (err));
return err;
}
}
store_xoctal (raw->mode, sizeof raw->mode, hdr->mode);
store_xoctal (raw->uid, sizeof raw->uid, hdr->uid);
store_xoctal (raw->gid, sizeof raw->gid, hdr->gid);
store_xoctal (raw->size, sizeof raw->size, hdr->size);
store_xoctal (raw->mtime, sizeof raw->mtime, hdr->mtime);
switch (hdr->typeflag)
{
case TF_REGULAR: raw->typeflag[0] = '0'; break;
case TF_HARDLINK: raw->typeflag[0] = '1'; break;
case TF_SYMLINK: raw->typeflag[0] = '2'; break;
case TF_CHARDEV: raw->typeflag[0] = '3'; break;
case TF_BLOCKDEV: raw->typeflag[0] = '4'; break;
case TF_DIRECTORY: raw->typeflag[0] = '5'; break;
case TF_FIFO: raw->typeflag[0] = '6'; break;
default: return gpg_error (GPG_ERR_NOT_SUPPORTED);
}
memcpy (raw->magic, "ustar", 6);
raw->version[0] = '0';
raw->version[1] = '0';
store_uname (raw->uname, sizeof raw->uname, hdr->uid);
store_gname (raw->gname, sizeof raw->gname, hdr->gid);
#ifndef HAVE_W32_SYSTEM
if (hdr->typeflag == TF_SYMLINK)
{
int nread;
nread = readlink (hdr->name, raw->linkname, sizeof raw->linkname -1);
if (nread < 0)
{
err = gpg_error_from_syserror ();
log_error ("error reading symlink `%s': %s\n",
hdr->name, gpg_strerror (err));
return err;
}
raw->linkname[nread] = 0;
}
#endif /*HAVE_W32_SYSTEM*/
/* Compute the checksum. */
memset (raw->checksum, ' ', sizeof raw->checksum);
chksum = 0;
p = record;
for (n=0; n < RECORDSIZE; n++)
chksum += *p++;
store_xoctal (raw->checksum, sizeof raw->checksum - 1, chksum);
raw->checksum[7] = ' ';
return 0;
}
static gpg_error_t
write_file (estream_t stream, tar_header_t hdr)
{
gpg_error_t err;
char record[RECORDSIZE];
estream_t infp;
size_t nread, nbytes;
int any;
err = build_header (record, hdr);
if (err)
{
if (gpg_err_code (err) == GPG_ERR_NOT_SUPPORTED)
{
log_info ("skipping unsupported file `%s'\n", hdr->name);
err = 0;
}
return err;
}
if (hdr->typeflag == TF_REGULAR)
{
infp = es_fopen (hdr->name, "rb");
if (!infp)
{
err = gpg_error_from_syserror ();
log_error ("can't open `%s': %s - skipped\n",
hdr->name, gpg_strerror (err));
return err;
}
}
else
infp = NULL;
err = write_record (stream, record);
if (err)
goto leave;
if (hdr->typeflag == TF_REGULAR)
{
hdr->nrecords = (hdr->size + RECORDSIZE-1)/RECORDSIZE;
any = 0;
while (hdr->nrecords--)
{
nbytes = hdr->nrecords? RECORDSIZE : (hdr->size % RECORDSIZE);
if (!nbytes)
nbytes = RECORDSIZE;
nread = es_fread (record, 1, nbytes, infp);
if (nread != nbytes)
{
err = gpg_error_from_syserror ();
log_error ("error reading file `%s': %s%s\n",
hdr->name, gpg_strerror (err),
any? " (file shrunk?)":"");
goto leave;
}
any = 1;
err = write_record (stream, record);
if (err)
goto leave;
}
nread = es_fread (record, 1, 1, infp);
if (nread)
log_info ("note: file `%s' has grown\n", hdr->name);
}
leave:
if (err)
es_fclose (infp);
else if ((err = es_fclose (infp)))
log_error ("error closing file `%s': %s\n", hdr->name, gpg_strerror (err));
return err;
}
static gpg_error_t
write_eof_mark (estream_t stream)
{
gpg_error_t err;
char record[RECORDSIZE];
memset (record, 0, sizeof record);
err = write_record (stream, record);
if (!err)
err = write_record (stream, record);
return err;
}
/* Create a new tarball using the names in the array INPATTERN. If
INPATTERN is NULL take the pattern as null terminated strings from
stdin. */
void
gpgtar_create (char **inpattern)
{
gpg_error_t err = 0;
struct scanctrl_s scanctrl_buffer;
scanctrl_t scanctrl = &scanctrl_buffer;
tar_header_t hdr, *start_tail;
estream_t outstream = NULL;
int eof_seen = 0;
#ifdef HAVE_DOSISH_SYSTEM
if (!inpattern)
setmode (es_fileno (es_stdin), O_BINARY);
#endif
memset (scanctrl, 0, sizeof *scanctrl);
scanctrl->flist_tail = &scanctrl->flist;
while (!eof_seen)
{
char *pat, *p;
int skip_this = 0;
if (inpattern)
{
const char *pattern = *inpattern;
if (!pattern)
break; /* End of array. */
inpattern++;
if (!*pattern)
continue;
pat = xtrystrdup (pattern);
}
else /* Read null delimited pattern from stdin. */
{
int c;
char namebuf[4096];
size_t n = 0;
for (;;)
{
if ((c = es_getc (es_stdin)) == EOF)
{
if (es_ferror (es_stdin))
{
err = gpg_error_from_syserror ();
log_error ("error reading `%s': %s\n",
"[stdin]", strerror (errno));
goto leave;
}
/* Note: The Nul is a delimiter and not a terminator. */
c = 0;
eof_seen = 1;
}
if (n >= sizeof namebuf - 1)
{
if (!skip_this)
{
skip_this = 1;
log_error ("error reading `%s': %s\n",
"[stdin]", "filename too long");
}
}
else
namebuf[n++] = c;
if (!c)
{
namebuf[n] = 0;
break;
}
}
if (skip_this || n < 2)
continue;
pat = xtrystrdup (namebuf);
}
if (!pat)
{
err = gpg_error_from_syserror ();
log_error ("memory allocation problem: %s\n", gpg_strerror (err));
goto leave;
}
for (p=pat; *p; p++)
if (*p == '\\')
*p = '/';
if (opt.verbose > 1)
log_info ("scanning `%s'\n", pat);
start_tail = scanctrl->flist_tail;
if (skip_this || !pattern_valid_p (pat))
log_error ("skipping invalid name `%s'\n", pat);
else if (!add_entry (pat, NULL, scanctrl)
&& *start_tail && ((*start_tail)->typeflag & TF_DIRECTORY))
scan_recursive (pat, scanctrl);
xfree (pat);
}
if (opt.outfile)
{
if (!strcmp (opt.outfile, "-"))
outstream = es_stdout;
else
outstream = es_fopen (opt.outfile, "wb");
if (!outstream)
{
err = gpg_error_from_syserror ();
log_error (_("can't create `%s': %s\n"),
opt.outfile, gpg_strerror (err));
goto leave;
}
}
else
{
outstream = es_stdout;
}
#ifdef HAVE_DOSISH_SYSTEM
if (outstream == es_stdout)
setmode (es_fileno (es_stdout), O_BINARY);
#endif
for (hdr = scanctrl->flist; hdr; hdr = hdr->next)
{
err = write_file (outstream, hdr);
if (err)
goto leave;
}
err = write_eof_mark (outstream);
leave:
if (!err)
{
if (outstream != es_stdout)
err = es_fclose (outstream);
else
err = es_fflush (outstream);
outstream = NULL;
}
if (err)
{
log_error ("creating tarball `%s' failed: %s\n",
es_fname_get (outstream), gpg_strerror (err));
if (outstream && outstream != es_stdout)
es_fclose (outstream);
if (opt.outfile)
remove (opt.outfile);
}
scanctrl->flist_tail = NULL;
while ( (hdr = scanctrl->flist) )
{
scanctrl->flist = hdr->next;
xfree (hdr);
}
}

349
tools/gpgtar-extract.c Normal file
View File

@ -0,0 +1,349 @@
/* gpgtar-extract.c - Extract from a TAR archive
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <assert.h>
#ifdef HAVE_W32_SYSTEM
# include <fcntl.h> /* for setmode() */
#endif /*HAVE_W32_SYSTEM*/
#include "i18n.h"
#include "../common/sysutils.h"
#include "gpgtar.h"
#ifndef GPG_ERR_LIMIT_REACHED
#define GPG_ERR_LIMIT_REACHED 183
#endif
static gpg_error_t
extract_regular (estream_t stream, const char *dirname,
tar_header_t hdr)
{
gpg_error_t err;
char record[RECORDSIZE];
size_t n, nbytes, nwritten;
char *fname;
estream_t outfp = NULL;
fname = strconcat (dirname, "/", hdr->name, NULL);
if (!fname)
{
err = gpg_error_from_syserror ();
log_error ("error creating filename: %s\n", gpg_strerror (err));
goto leave;
}
else
err = 0;
outfp = es_fopen (fname, "wb");
if (!outfp)
{
err = gpg_error_from_syserror ();
log_error ("error creating `%s': %s\n", fname, gpg_strerror (err));
goto leave;
}
for (n=0; n < hdr->nrecords;)
{
err = read_record (stream, record);
if (err)
goto leave;
n++;
nbytes = (n < hdr->nrecords)? RECORDSIZE : (hdr->size % RECORDSIZE);
nwritten = es_fwrite (record, 1, nbytes, outfp);
if (nwritten != nbytes)
{
err = gpg_error_from_syserror ();
log_error ("error writing `%s': %s\n", fname, gpg_strerror (err));
goto leave;
}
}
/* Fixme: Set permissions etc. */
leave:
if (!err && opt.verbose)
log_info ("extracted `%s'\n", fname);
es_fclose (outfp);
if (err && fname && outfp)
{
if (remove (fname))
log_error ("error removing incomplete file `%s': %s\n",
fname, gpg_strerror (gpg_error_from_syserror ()));
}
xfree (fname);
return err;
}
static gpg_error_t
extract_directory (const char *dirname, tar_header_t hdr)
{
gpg_error_t err;
char *fname;
size_t prefixlen;
prefixlen = strlen (dirname) + 1;
fname = strconcat (dirname, "/", hdr->name, NULL);
if (!fname)
{
err = gpg_error_from_syserror ();
log_error ("error creating filename: %s\n", gpg_strerror (err));
goto leave;
}
else
err = 0;
if (fname[strlen (fname)-1] == '/')
fname[strlen (fname)-1] = 0;
/* Note that we don't need to care about EEXIST because we always
extract into a new hierarchy. */
if (gnupg_mkdir (fname, "-rwx------"))
{
err = gpg_error_from_syserror ();
if (gpg_err_code (err) == GPG_ERR_ENOENT)
{
/* Try to create the directory with parents but keep the
original error code in case of a failure. */
char *p;
int rc = 0;
for (p = fname+prefixlen; (p = strchr (p, '/')); p++)
{
*p = 0;
rc = gnupg_mkdir (fname, "-rwx------");
*p = '/';
if (rc)
break;
}
if (!rc && !gnupg_mkdir (fname, "-rwx------"))
err = 0;
}
if (err)
log_error ("error creating directory `%s': %s\n",
fname, gpg_strerror (err));
}
leave:
if (!err && opt.verbose)
log_info ("created `%s/'\n", fname);
xfree (fname);
return err;
}
static gpg_error_t
extract (estream_t stream, const char *dirname, tar_header_t hdr)
{
gpg_error_t err;
size_t n;
n = strlen (hdr->name);
#ifdef HAVE_DOSISH_SYSTEM
if (strchr (hdr->name, '\\'))
{
log_error ("filename `%s' contains a backslash - "
"can't extract on this system\n", hdr->name);
return gpg_error (GPG_ERR_INV_NAME);
}
#endif /*HAVE_DOSISH_SYSTEM*/
if (!n
|| strstr (hdr->name, "//")
|| strstr (hdr->name, "/../")
|| !strncmp (hdr->name, "../", 3)
|| (n >= 3 && !strcmp (hdr->name+n-3, "/.." )))
{
log_error ("filename `%s' as suspicious parts - not extracting\n",
hdr->name);
return gpg_error (GPG_ERR_INV_NAME);
}
if (hdr->typeflag == TF_REGULAR || hdr->typeflag == TF_UNKNOWN)
err = extract_regular (stream, dirname, hdr);
else if (hdr->typeflag == TF_DIRECTORY)
err = extract_directory (dirname, hdr);
else
{
char record[RECORDSIZE];
log_info ("unsupported file type %d for `%s' - skipped\n",
(int)hdr->typeflag, hdr->name);
for (err = 0, n=0; !err && n < hdr->nrecords; n++)
err = read_record (stream, record);
}
return err;
}
/* Create a new directory to be used for extracting the tarball.
Returns the name of the directory which must be freed by the
caller. In case of an error a diagnostic is printed and NULL
returned. */
static char *
create_directory (const char *dirprefix)
{
gpg_error_t err = 0;
char *prefix_buffer = NULL;
char *dirname = NULL;
size_t n;
int idx;
/* Remove common suffixes. */
n = strlen (dirprefix);
if (n > 4 && (!compare_filenames (dirprefix + n - 4, EXTSEP_S "gpg")
|| !compare_filenames (dirprefix + n - 4, EXTSEP_S "pgp")
|| !compare_filenames (dirprefix + n - 4, EXTSEP_S "asc")
|| !compare_filenames (dirprefix + n - 4, EXTSEP_S "pem")
|| !compare_filenames (dirprefix + n - 4, EXTSEP_S "p7m")
|| !compare_filenames (dirprefix + n - 4, EXTSEP_S "p7e")))
{
prefix_buffer = xtrystrdup (dirprefix);
if (!prefix_buffer)
{
err = gpg_error_from_syserror ();
goto leave;
}
prefix_buffer[n-4] = 0;
dirprefix = prefix_buffer;
}
for (idx=1; idx < 5000; idx++)
{
xfree (dirname);
dirname = xtryasprintf ("%s_%d_", dirprefix, idx);
if (!dirname)
{
err = gpg_error_from_syserror ();
goto leave;
}
if (!gnupg_mkdir (dirname, "-rwx------"))
goto leave; /* Ready. */
if (errno != EEXIST && errno != ENOTDIR)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
err = gpg_error (GPG_ERR_LIMIT_REACHED);
leave:
if (err)
{
log_error ("error creating an extract directory: %s\n",
gpg_strerror (err));
xfree (dirname);
dirname = NULL;
}
xfree (prefix_buffer);
return dirname;
}
void
gpgtar_extract (const char *filename)
{
gpg_error_t err;
estream_t stream;
tar_header_t header = NULL;
const char *dirprefix = NULL;
char *dirname = NULL;
if (filename)
{
if (!strcmp (filename, "-"))
stream = es_stdin;
else
stream = es_fopen (filename, "rb");
if (!stream)
{
err = gpg_error_from_syserror ();
log_error ("error opening `%s': %s\n", filename, gpg_strerror (err));
return;
}
}
else
stream = es_stdin;
#ifdef HAVE_DOSISH_SYSTEM
if (stream == es_stdin)
setmode (es_fileno (es_stdin), O_BINARY);
#endif
if (filename && stream != es_stdin)
{
dirprefix = strrchr (filename, '/');
if (dirprefix)
dirprefix++;
else
dirprefix = filename;
}
else if (opt.filename)
{
dirprefix = strrchr (opt.filename, '/');
if (dirprefix)
dirprefix++;
else
dirprefix = opt.filename;
}
if (!dirprefix || !*dirprefix)
dirprefix = "GPGARCH";
dirname = create_directory (dirprefix);
if (!dirname)
{
err = gpg_error (GPG_ERR_GENERAL);
goto leave;
}
if (opt.verbose)
log_info ("extracting to `%s/'\n", dirname);
for (;;)
{
header = gpgtar_read_header (stream);
if (!header)
goto leave;
if (extract (stream, dirname, header))
goto leave;
xfree (header);
header = NULL;
}
leave:
xfree (header);
xfree (dirname);
if (stream != es_stdin)
es_fclose (stream);
return;
}

332
tools/gpgtar-list.c Normal file
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@ -0,0 +1,332 @@
/* gpgtar-list.c - List a TAR archive
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include "i18n.h"
#include "gpgtar.h"
static unsigned long long
parse_xoctal (const void *data, size_t length, const char *filename)
{
const unsigned char *p = data;
unsigned long long value;
if (!length)
value = 0;
else if ( (*p & 0x80))
{
/* Binary format. */
value = (*p++ & 0x7f);
while (--length)
{
value <<= 8;
value |= *p++;
}
}
else
{
/* Octal format */
value = 0;
/* Skip leading spaces and zeroes. */
for (; length && (*p == ' ' || *p == '0'); length--, p++)
;
for (; length && *p; length--, p++)
{
if (*p >= '0' && *p <= '7')
{
value <<= 3;
value += (*p - '0');
}
else
{
log_error ("%s: invalid octal number encountered - assuming 0\n",
filename);
value = 0;
break;
}
}
}
return value;
}
static tar_header_t
parse_header (const void *record, const char *filename)
{
const struct ustar_raw_header *raw = record;
size_t n, namelen, prefixlen;
tar_header_t header;
int use_prefix;
use_prefix = (!memcmp (raw->magic, "ustar", 5)
&& (raw->magic[5] == ' ' || !raw->magic[5]));
for (namelen=0; namelen < sizeof raw->name && raw->name[namelen]; namelen++)
;
if (namelen == sizeof raw->name)
log_info ("%s: warning: name not terminated by a nul byte\n", filename);
for (n=namelen+1; n < sizeof raw->name; n++)
if (raw->name[n])
{
log_info ("%s: warning: garbage after name\n", filename);
break;
}
if (use_prefix && raw->prefix[0])
{
for (prefixlen=0; (prefixlen < sizeof raw->prefix
&& raw->prefix[prefixlen]); prefixlen++)
;
if (prefixlen == sizeof raw->prefix)
log_info ("%s: warning: prefix not terminated by a nul byte\n",
filename);
for (n=prefixlen+1; n < sizeof raw->prefix; n++)
if (raw->prefix[n])
{
log_info ("%s: warning: garbage after prefix\n", filename);
break;
}
}
else
prefixlen = 0;
header = xtrycalloc (1, sizeof *header + prefixlen + 1 + namelen);
if (!header)
{
log_error ("%s: error allocating header: %s\n",
filename, gpg_strerror (gpg_error_from_syserror ()));
return NULL;
}
if (prefixlen)
{
n = prefixlen;
memcpy (header->name, raw->prefix, n);
if (raw->prefix[n-1] != '/')
header->name[n++] = '/';
}
else
n = 0;
memcpy (header->name+n, raw->name, namelen);
header->name[n+namelen] = 0;
header->mode = parse_xoctal (raw->mode, sizeof raw->mode, filename);
header->uid = parse_xoctal (raw->uid, sizeof raw->uid, filename);
header->gid = parse_xoctal (raw->gid, sizeof raw->gid, filename);
header->size = parse_xoctal (raw->size, sizeof raw->size, filename);
header->mtime = parse_xoctal (raw->mtime, sizeof raw->mtime, filename);
/* checksum = */
switch (raw->typeflag[0])
{
case '0': header->typeflag = TF_REGULAR; break;
case '1': header->typeflag = TF_HARDLINK; break;
case '2': header->typeflag = TF_SYMLINK; break;
case '3': header->typeflag = TF_CHARDEV; break;
case '4': header->typeflag = TF_BLOCKDEV; break;
case '5': header->typeflag = TF_DIRECTORY; break;
case '6': header->typeflag = TF_FIFO; break;
case '7': header->typeflag = TF_RESERVED; break;
default: header->typeflag = TF_UNKNOWN; break;
}
/* Compute the number of data records following this header. */
if (header->typeflag == TF_REGULAR || header->typeflag == TF_UNKNOWN)
header->nrecords = (header->size + RECORDSIZE-1)/RECORDSIZE;
else
header->nrecords = 0;
return header;
}
/* Read the next block, assming it is a tar header. Returns a header
object on success or NULL one error. In case of an error an error
message has been printed. */
static tar_header_t
read_header (estream_t stream)
{
gpg_error_t err;
char record[RECORDSIZE];
int i;
err = read_record (stream, record);
if (err)
return NULL;
for (i=0; i < RECORDSIZE && !record[i]; i++)
;
if (i == RECORDSIZE)
{
/* All zero header - check whether it is the first part of an
end of archive mark. */
err = read_record (stream, record);
if (err)
return NULL;
for (i=0; i < RECORDSIZE && !record[i]; i++)
;
if (i != RECORDSIZE)
log_info ("%s: warning: skipping empty header\n",
es_fname_get (stream));
else
{
/* End of archive - FIXME: we might want to check for garbage. */
return NULL;
}
}
return parse_header (record, es_fname_get (stream));
}
/* Skip the data records according to HEADER. Prints an error message
on error and return -1. */
static int
skip_data (estream_t stream, tar_header_t header)
{
char record[RECORDSIZE];
unsigned long long n;
for (n=0; n < header->nrecords; n++)
{
if (read_record (stream, record))
return -1;
}
return 0;
}
static void
print_header (tar_header_t header, estream_t out)
{
unsigned long mask;
char modestr[10+1];
int i;
*modestr = '?';
switch (header->typeflag)
{
case TF_REGULAR: *modestr = '-'; break;
case TF_HARDLINK: *modestr = 'h'; break;
case TF_SYMLINK: *modestr = 'l'; break;
case TF_CHARDEV: *modestr = 'c'; break;
case TF_BLOCKDEV: *modestr = 'b'; break;
case TF_DIRECTORY:*modestr = 'd'; break;
case TF_FIFO: *modestr = 'f'; break;
case TF_RESERVED: *modestr = '='; break;
case TF_UNKNOWN: break;
case TF_NOTSUP: break;
}
for (mask = 0400, i = 0; i < 9; i++, mask >>= 1)
modestr[1+i] = (header->mode & mask)? "rwxrwxrwx"[i]:'-';
if ((header->typeflag & 04000))
modestr[3] = modestr[3] == 'x'? 's':'S';
if ((header->typeflag & 02000))
modestr[6] = modestr[6] == 'x'? 's':'S';
if ((header->typeflag & 01000))
modestr[9] = modestr[9] == 'x'? 't':'T';
modestr[10] = 0;
es_fprintf (out, "%s %lu %lu/%lu %12llu %s %s\n",
modestr, header->nlink, header->uid, header->gid, header->size,
isotimestamp (header->mtime), header->name);
}
/* List the tarball FILENAME or, if FILENAME is NULL, the tarball read
from stdin. */
void
gpgtar_list (const char *filename)
{
gpg_error_t err;
estream_t stream;
tar_header_t header;
if (filename)
{
if (!strcmp (filename, "-"))
stream = es_stdin;
else
stream = es_fopen (filename, "rb");
if (!stream)
{
err = gpg_error_from_syserror ();
log_error ("error opening `%s': %s\n", filename, gpg_strerror (err));
return;
}
}
else
stream = es_stdin;
#ifdef HAVE_DOSISH_SYSTEM
if (stream == es_stdin)
setmode (es_fileno (es_stdin), O_BINARY);
#endif
for (;;)
{
header = read_header (stream);
if (!header)
goto leave;
print_header (header, es_stdout);
if (skip_data (stream, header))
goto leave;
xfree (header);
header = NULL;
}
leave:
xfree (header);
if (stream != es_stdin)
es_fclose (stream);
return;
}
tar_header_t
gpgtar_read_header (estream_t stream)
{
/*FIXME: Change to return an error code. */
return read_header (stream);
}
void
gpgtar_print_header (tar_header_t header, estream_t out)
{
if (header && out)
print_header (header, out);
}

538
tools/gpgtar.c Normal file
View File

@ -0,0 +1,538 @@
/* gpgtar.c - A simple TAR implementation mainly useful for Windows.
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* GnuPG comes with a shell script gpg-zip which creates archive files
in the same format as PGP Zip, which is actually a USTAR format.
That is fine and works nicely on all Unices but for Windows we
don't have a compatible shell and the supply of tar programs is
limited. Given that we need just a few tar option and it is an
open question how many Unix concepts are to be mapped to Windows,
we might as well write our own little tar customized for use with
gpg. So here we go. */
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#ifdef HAVE_STAT
# include <sys/stat.h>
#endif
#include "util.h"
#include "i18n.h"
#include "sysutils.h"
#include "../common/openpgpdefs.h"
#include "gpgtar.h"
/* Constants to identify the commands and options. */
enum cmd_and_opt_values
{
aNull = 0,
aEncrypt = 'e',
aDecrypt = 'd',
aSign = 's',
aList = 't',
oSymmetric = 'c',
oRecipient = 'r',
oUser = 'u',
oOutput = 'o',
oQuiet = 'q',
oVerbose = 'v',
oFilesFrom = 'T',
oNoVerbose = 500,
aSignEncrypt,
oSkipCrypto,
oOpenPGP,
oCMS,
oSetFilename,
oNull
};
/* The list of commands and options. */
static ARGPARSE_OPTS opts[] = {
ARGPARSE_group (300, N_("@Commands:\n ")),
ARGPARSE_c (aEncrypt, "encrypt", N_("create an archive")),
ARGPARSE_c (aDecrypt, "decrypt", N_("extract an archive")),
ARGPARSE_c (aSign, "sign", N_("create a signed archive")),
ARGPARSE_c (aList, "list-archive", N_("list an archive")),
ARGPARSE_group (301, N_("@\nOptions:\n ")),
ARGPARSE_s_n (oSymmetric, "symmetric", N_("use symmetric encryption")),
ARGPARSE_s_s (oRecipient, "recipient", N_("|USER-ID|encrypt for USER-ID")),
ARGPARSE_s_s (oUser, "local-user",
N_("|USER-ID|use USER-ID to sign or decrypt")),
ARGPARSE_s_s (oOutput, "output", N_("|FILE|write output to FILE")),
ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")),
ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")),
ARGPARSE_s_n (oSkipCrypto, "skip-crypto", N_("skip the crypto processing")),
ARGPARSE_s_s (oSetFilename, "set-filename", "@"),
ARGPARSE_s_s (oFilesFrom, "files-from",
N_("|FILE|get names to create from FILE")),
ARGPARSE_s_n (oNull, "null", N_("-T reads null-terminated names")),
ARGPARSE_s_n (oOpenPGP, "openpgp", "@"),
ARGPARSE_s_n (oCMS, "cms", "@"),
ARGPARSE_end ()
};
static void tar_and_encrypt (char **inpattern);
static void decrypt_and_untar (const char *fname);
static void decrypt_and_list (const char *fname);
/* Print usage information and and provide strings for help. */
static const char *
my_strusage( int level )
{
const char *p;
switch (level)
{
case 11: p = "gpgtar (GnuPG)";
break;
case 13: p = VERSION; break;
case 17: p = PRINTABLE_OS_NAME; break;
case 19: p = _("Please report bugs to <@EMAIL@>.\n"); break;
case 1:
case 40:
p = _("Usage: gpgtar [options] [files] [directories] (-h for help)");
break;
case 41:
p = _("Syntax: gpgtar [options] [files] [directories]\n"
"Encrypt or sign files into an archive\n");
break;
default: p = NULL; break;
}
return p;
}
static void
set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd)
{
enum cmd_and_opt_values cmd = *ret_cmd;
if (!cmd || cmd == new_cmd)
cmd = new_cmd;
else if (cmd == aSign && new_cmd == aEncrypt)
cmd = aSignEncrypt;
else if (cmd == aEncrypt && new_cmd == aSign)
cmd = aSignEncrypt;
else
{
log_error (_("conflicting commands\n"));
exit (2);
}
*ret_cmd = cmd;
}
/* gpgtar main. */
int
main (int argc, char **argv)
{
ARGPARSE_ARGS pargs;
const char *fname;
int no_more_options = 0;
enum cmd_and_opt_values cmd = 0;
int skip_crypto = 0;
const char *files_from = NULL;
int null_names = 0;
assert (sizeof (struct ustar_raw_header) == 512);
gnupg_reopen_std ("gpgtar");
set_strusage (my_strusage);
log_set_prefix ("gpgtar", 1);
/* Make sure that our subsystems are ready. */
i18n_init();
init_common_subsystems ();
/* Parse the command line. */
pargs.argc = &argc;
pargs.argv = &argv;
pargs.flags = ARGPARSE_FLAG_KEEP;
while (!no_more_options && optfile_parse (NULL, NULL, NULL, &pargs, opts))
{
switch (pargs.r_opt)
{
case oOutput: opt.outfile = pargs.r.ret_str; break;
case oSetFilename: opt.filename = pargs.r.ret_str; break;
case oQuiet: opt.quiet = 1; break;
case oVerbose: opt.verbose++; break;
case oNoVerbose: opt.verbose = 0; break;
case oFilesFrom: files_from = pargs.r.ret_str; break;
case oNull: null_names = 1; break;
case aList:
case aDecrypt:
case aEncrypt:
case aSign:
set_cmd (&cmd, pargs.r_opt);
break;
case oSymmetric:
set_cmd (&cmd, aEncrypt);
opt.symmetric = 1;
break;
case oSkipCrypto:
skip_crypto = 1;
break;
case oOpenPGP: /* Dummy option for now. */ break;
case oCMS: /* Dummy option for now. */ break;
default: pargs.err = 2; break;
}
}
if ((files_from && !null_names) || (!files_from && null_names))
log_error ("--files-from and --null may only be used in conjunction\n");
if (files_from && strcmp (files_from, "-"))
log_error ("--files-from only supports argument \"-\"\n");
if (log_get_errorcount (0))
exit (2);
switch (cmd)
{
case aList:
if (argc > 1)
usage (1);
fname = argc ? *argv : NULL;
if (opt.filename)
log_info ("note: ignoring option --set-filename\n");
if (files_from)
log_info ("note: ignoring option --files-from\n");
if (skip_crypto)
gpgtar_list (fname);
else
decrypt_and_list (fname);
break;
case aEncrypt:
if ((!argc && !null_names)
|| (argc && null_names))
usage (1);
if (opt.filename)
log_info ("note: ignoring option --set-filename\n");
if (skip_crypto)
gpgtar_create (null_names? NULL :argv);
else
tar_and_encrypt (null_names? NULL : argv);
break;
case aDecrypt:
if (argc != 1)
usage (1);
if (opt.outfile)
log_info ("note: ignoring option --output\n");
if (files_from)
log_info ("note: ignoring option --files-from\n");
fname = argc ? *argv : NULL;
if (skip_crypto)
gpgtar_extract (fname);
else
decrypt_and_untar (fname);
break;
default:
log_error (_("invalid command (there is no implicit command)\n"));
break;
}
return log_get_errorcount (0)? 1:0;
}
/* Read the next record from STREAM. RECORD is a buffer provided by
the caller and must be at leadt of size RECORDSIZE. The function
return 0 on success and and error code on failure; a diagnostic
printed as well. Note that there is no need for an EOF indicator
because a tarball has an explicit EOF record. */
gpg_error_t
read_record (estream_t stream, void *record)
{
gpg_error_t err;
size_t nread;
nread = es_fread (record, 1, RECORDSIZE, stream);
if (nread != RECORDSIZE)
{
err = gpg_error_from_syserror ();
if (es_ferror (stream))
log_error ("error reading `%s': %s\n",
es_fname_get (stream), gpg_strerror (err));
else
log_error ("error reading `%s': premature EOF "
"(size of last record: %zu)\n",
es_fname_get (stream), nread);
}
else
err = 0;
return err;
}
/* Write the RECORD of size RECORDSIZE to STREAM. FILENAME is the
name of the file used for diagnostics. */
gpg_error_t
write_record (estream_t stream, const void *record)
{
gpg_error_t err;
size_t nwritten;
nwritten = es_fwrite (record, 1, RECORDSIZE, stream);
if (nwritten != RECORDSIZE)
{
err = gpg_error_from_syserror ();
log_error ("error writing `%s': %s\n",
es_fname_get (stream), gpg_strerror (err));
}
else
err = 0;
return err;
}
/* Return true if FP is an unarmored OpenPGP message. Note that this
fucntion reads a few bytes from FP but pushes them back. */
#if 0
static int
openpgp_message_p (estream_t fp)
{
int ctb;
ctb = es_getc (fp);
if (ctb != EOF)
{
if (es_ungetc (ctb, fp))
log_fatal ("error ungetting first byte: %s\n",
gpg_strerror (gpg_error_from_syserror ()));
if ((ctb & 0x80))
{
switch ((ctb & 0x40) ? (ctb & 0x3f) : ((ctb>>2)&0xf))
{
case PKT_MARKER:
case PKT_SYMKEY_ENC:
case PKT_ONEPASS_SIG:
case PKT_PUBKEY_ENC:
case PKT_SIGNATURE:
case PKT_COMMENT:
case PKT_OLD_COMMENT:
case PKT_PLAINTEXT:
case PKT_COMPRESSED:
case PKT_ENCRYPTED:
return 1; /* Yes, this seems to be an OpenPGP message. */
default:
break;
}
}
}
return 0;
}
#endif
static void
tar_and_encrypt (char **inpattern)
{
(void)inpattern;
log_error ("tar_and_encrypt has not yet been implemented\n");
}
static void
decrypt_and_untar (const char *fname)
{
(void)fname;
log_error ("decrypt_and_untar has not yet been implemented\n");
}
static void
decrypt_and_list (const char *fname)
{
(void)fname;
log_error ("decrypt_and_list has not yet been implemented\n");
}
/* A wrapper around mkdir which takes a string for the mode argument.
This makes it easier to handle the mode argument which is not
defined on all systems. The format of the modestring is
"-rwxrwxrwx"
'-' is a don't care or not set. 'r', 'w', 'x' are read allowed,
write allowed, execution allowed with the first group for the user,
the second for the group and the third for all others. If the
string is shorter than above the missing mode characters are meant
to be not set. */
int
gnupg_mkdir (const char *name, const char *modestr)
{
#ifdef HAVE_W32CE_SYSTEM
wchar_t *wname;
(void)modestr;
wname = utf8_to_wchar (name);
if (!wname)
return -1;
if (!CreateDirectoryW (wname, NULL))
{
xfree (wname);
return -1; /* ERRNO is automagically provided by gpg-error.h. */
}
xfree (wname);
return 0;
#elif MKDIR_TAKES_ONE_ARG
(void)modestr;
/* Note: In the case of W32 we better use CreateDirectory and try to
set appropriate permissions. However using mkdir is easier
because this sets ERRNO. */
return mkdir (name);
#else
mode_t mode = 0;
if (modestr && *modestr)
{
modestr++;
if (*modestr && *modestr++ == 'r')
mode |= S_IRUSR;
if (*modestr && *modestr++ == 'w')
mode |= S_IWUSR;
if (*modestr && *modestr++ == 'x')
mode |= S_IXUSR;
if (*modestr && *modestr++ == 'r')
mode |= S_IRGRP;
if (*modestr && *modestr++ == 'w')
mode |= S_IWGRP;
if (*modestr && *modestr++ == 'x')
mode |= S_IXGRP;
if (*modestr && *modestr++ == 'r')
mode |= S_IROTH;
if (*modestr && *modestr++ == 'w')
mode |= S_IWOTH;
if (*modestr && *modestr++ == 'x')
mode |= S_IXOTH;
}
return mkdir (name, mode);
#endif
}
#ifdef HAVE_W32_SYSTEM
/* Return a malloced string encoded in UTF-8 from the wide char input
string STRING. Caller must free this value. Returns NULL and sets
ERRNO on failure. Calling this function with STRING set to NULL is
not defined. */
char *
wchar_to_utf8 (const wchar_t *string)
{
int n;
char *result;
n = WideCharToMultiByte (CP_UTF8, 0, string, -1, NULL, 0, NULL, NULL);
if (n < 0)
{
errno = EINVAL;
return NULL;
}
result = xtrymalloc (n+1);
if (!result)
return NULL;
n = WideCharToMultiByte (CP_UTF8, 0, string, -1, result, n, NULL, NULL);
if (n < 0)
{
xfree (result);
errno = EINVAL;
result = NULL;
}
return result;
}
/* Return a malloced wide char string from an UTF-8 encoded input
string STRING. Caller must free this value. Returns NULL and sets
ERRNO on failure. Calling this function with STRING set to NULL is
not defined. */
wchar_t *
utf8_to_wchar (const char *string)
{
int n;
size_t nbytes;
wchar_t *result;
n = MultiByteToWideChar (CP_UTF8, 0, string, -1, NULL, 0);
if (n < 0)
{
errno = EINVAL;
return NULL;
}
nbytes = (size_t)(n+1) * sizeof(*result);
if (nbytes / sizeof(*result) != (n+1))
{
errno = ENOMEM;
return NULL;
}
result = xtrymalloc (nbytes);
if (!result)
return NULL;
n = MultiByteToWideChar (CP_UTF8, 0, string, -1, result, n);
if (n < 0)
{
free (result);
errno = EINVAL;
result = NULL;
}
return result;
}
#endif /*HAVE_W32_SYSTEM*/

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/* gpgtar.h - Global definitions for gpgtar
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GPGTAR_H
#define GPGTAR_H
#include "../common/util.h"
#include "../common/estream.h"
/* We keep all global options in the structure OPT. */
struct
{
int verbose;
int quiet;
const char *outfile;
int symmetric;
const char *filename;
} opt;
/* The size of a tar record. All IO is done in chunks of this size.
Note that we don't care about blocking because this version of tar
is not expected to be used directly on a tape drive in fact it is
used in a pipeline with GPG and thus any blocking would be
useless. */
#define RECORDSIZE 512
/* Description of the USTAR header format. */
struct ustar_raw_header
{
char name[100];
char mode[8];
char uid[8];
char gid[8];
char size[12];
char mtime[12];
char checksum[8];
char typeflag[1];
char linkname[100];
char magic[6];
char version[2];
char uname[32];
char gname[32];
char devmajor[8];
char devminor[8];
char prefix[155];
char pad[12];
};
/* Filetypes as defined by USTAR. */
typedef enum
{
TF_REGULAR,
TF_HARDLINK,
TF_SYMLINK,
TF_CHARDEV,
TF_BLOCKDEV,
TF_DIRECTORY,
TF_FIFO,
TF_RESERVED,
TF_UNKNOWN, /* Needs to be treated as regular file. */
TF_NOTSUP /* Not supported (used with --create). */
} typeflag_t;
/* The internal represenation of a TAR header. */
struct tar_header_s;
typedef struct tar_header_s *tar_header_t;
struct tar_header_s
{
tar_header_t next; /* Used to build a linked list iof entries. */
unsigned long mode; /* The file mode. */
unsigned long nlink; /* Number of hard links. */
unsigned long uid; /* The user id of the file. */
unsigned long gid; /* The group id of the file. */
unsigned long long size; /* The size of the file. */
unsigned long long mtime; /* Modification time since Epoch. Note
that we don't use time_t here but a
type which is more likely to be larger
that 32 bit and thus allows to track
times beyond 2106. */
typeflag_t typeflag; /* The type of the file. */
unsigned long long nrecords; /* Number of data records. */
char name[1]; /* Filename (dynamically extended). */
};
/*-- gpgtar.c --*/
gpg_error_t read_record (estream_t stream, void *record);
gpg_error_t write_record (estream_t stream, const void *record);
int gnupg_mkdir (const char *name, const char *modestr);
#ifdef HAVE_W32_SYSTEM
char *wchar_to_utf8 (const wchar_t *string);
wchar_t *utf8_to_wchar (const char *string);
#endif
/*-- gpgtar-create.c --*/
void gpgtar_create (char **inpattern);
/*-- gpgtar-extract.c --*/
void gpgtar_extract (const char *filename);
/*-- gpgtar-list.c --*/
void gpgtar_list (const char *filename);
tar_header_t gpgtar_read_header (estream_t stream);
void gpgtar_print_header (tar_header_t header, estream_t out);
#endif /*GPGTAR_H*/