mirror of
git://git.gnupg.org/gnupg.git
synced 2025-02-01 16:33:02 +01:00
tools/gpgtar: Handle '--tar-args' for compatibility with gpg-zip.
* tools/gpgtar.c (enum cmd_and_opt_values): New value. (opts): Add new group for tar options, rearrange a little, add '--tar-args'. (tar_opts): New variable. (shell_parse_stringlist): New function. (shell_parse_argv): Likewise. (parse_arguments): Add option argument, handle '--tar-args'. (main): Fix invokation of 'parse_arguments'. * tests/openpgp/gpgtar.test: Simplify decryption. Signed-off-by: Justus Winter <justus@g10code.com>
This commit is contained in:
Justus Winter
parent
35c0c8b211
commit
2eb3248058
@ -42,12 +42,8 @@ do
|
||||
grep -qe "\\b${F}\\b" "$FILELIST"
|
||||
done
|
||||
|
||||
EXTRACT_FLAGS="--directory=${TESTDIR}"
|
||||
if [ "$TOOL" = "$GPGZIP" ]
|
||||
then
|
||||
EXTRACT_FLAGS="--tar-args $EXTRACT_FLAGS"
|
||||
fi
|
||||
$TOOL --gpg "$GPG" $EXTRACT_FLAGS --decrypt "${TESTDIR}/test.tar.pgp"
|
||||
$TOOL --gpg "$GPG" --tar-args --directory="${TESTDIR}" \
|
||||
--decrypt "${TESTDIR}/test.tar.pgp"
|
||||
for F in $TESTFILES
|
||||
do
|
||||
diff -q "$F" "${TESTDIR}/$F"
|
||||
|
||||
158
tools/gpgtar.c
158
tools/gpgtar.c
@ -28,6 +28,7 @@
|
||||
|
||||
#include <config.h>
|
||||
#include <assuan.h>
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <npth.h>
|
||||
#include <stdio.h>
|
||||
@ -41,6 +42,7 @@
|
||||
#include "../common/asshelp.h"
|
||||
#include "../common/openpgpdefs.h"
|
||||
#include "../common/init.h"
|
||||
#include "../common/strlist.h"
|
||||
|
||||
#include "gpgtar.h"
|
||||
|
||||
@ -70,7 +72,10 @@ enum cmd_and_opt_values
|
||||
oOpenPGP,
|
||||
oCMS,
|
||||
oSetFilename,
|
||||
oNull
|
||||
oNull,
|
||||
|
||||
/* Compatibility with gpg-zip. */
|
||||
oTarArgs,
|
||||
};
|
||||
|
||||
|
||||
@ -90,18 +95,35 @@ static ARGPARSE_OPTS opts[] = {
|
||||
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_s (oDirectory, "directory",
|
||||
N_("|DIRECTORY|extract files into DIRECTORY")),
|
||||
ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")),
|
||||
ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")),
|
||||
ARGPARSE_s_s (oGpgProgram, "gpg", "@"),
|
||||
ARGPARSE_s_n (oSkipCrypto, "skip-crypto", N_("skip the crypto processing")),
|
||||
ARGPARSE_s_s (oSetFilename, "set-filename", "@"),
|
||||
ARGPARSE_s_n (oOpenPGP, "openpgp", "@"),
|
||||
ARGPARSE_s_n (oCMS, "cms", "@"),
|
||||
|
||||
ARGPARSE_group (302, N_("@\nTar options:\n ")),
|
||||
|
||||
ARGPARSE_s_s (oDirectory, "directory",
|
||||
N_("|DIRECTORY|extract files into DIRECTORY")),
|
||||
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_s (oTarArgs, "tar-args", "@"),
|
||||
|
||||
ARGPARSE_end ()
|
||||
};
|
||||
|
||||
|
||||
/* The list of commands and options for tar that we understand. */
|
||||
static ARGPARSE_OPTS tar_opts[] = {
|
||||
ARGPARSE_s_s (oDirectory, "directory",
|
||||
N_("|DIRECTORY|extract files into DIRECTORY")),
|
||||
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 ()
|
||||
};
|
||||
@ -156,6 +178,105 @@ set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd)
|
||||
|
||||
*ret_cmd = cmd;
|
||||
}
|
||||
|
||||
/* Shell-like argument splitting.
|
||||
|
||||
For compatibility with gpg-zip we accept arguments for GnuPG and
|
||||
tar given as a string argument to '--gpg-args' and '--tar-args'.
|
||||
gpg-zip was implemented as a Bourne Shell script, and therefore, we
|
||||
need to split the string the same way the shell would. */
|
||||
static int
|
||||
shell_parse_stringlist (const char *str, strlist_t *r_list)
|
||||
{
|
||||
strlist_t list = NULL;
|
||||
const char *s = str;
|
||||
char quoted = 0;
|
||||
char arg[1024];
|
||||
char *p = arg;
|
||||
#define addchar(c) \
|
||||
do { if (p - arg + 2 < sizeof arg) *p++ = (c); else return 1; } while (0)
|
||||
#define addargument() \
|
||||
do { \
|
||||
if (p > arg) \
|
||||
{ \
|
||||
*p = 0; \
|
||||
append_to_strlist (&list, arg); \
|
||||
p = arg; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define unquoted 0
|
||||
#define singlequote '\''
|
||||
#define doublequote '"'
|
||||
|
||||
for (; *s; s++)
|
||||
{
|
||||
switch (quoted)
|
||||
{
|
||||
case unquoted:
|
||||
if (isspace (*s))
|
||||
addargument ();
|
||||
else if (*s == singlequote || *s == doublequote)
|
||||
quoted = *s;
|
||||
else
|
||||
addchar (*s);
|
||||
break;
|
||||
|
||||
case singlequote:
|
||||
if (*s == singlequote)
|
||||
quoted = unquoted;
|
||||
else
|
||||
addchar (*s);
|
||||
break;
|
||||
|
||||
case doublequote:
|
||||
assert (s > str || !"cannot be quoted at first char");
|
||||
if (*s == doublequote && *(s - 1) != '\\')
|
||||
quoted = unquoted;
|
||||
else
|
||||
addchar (*s);
|
||||
break;
|
||||
|
||||
default:
|
||||
assert (! "reached");
|
||||
}
|
||||
}
|
||||
|
||||
/* Append the last argument. */
|
||||
addargument ();
|
||||
|
||||
#undef doublequote
|
||||
#undef singlequote
|
||||
#undef unquoted
|
||||
#undef addargument
|
||||
#undef addchar
|
||||
*r_list = list;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Like shell_parse_stringlist, but returns an argv vector
|
||||
instead of a strlist. */
|
||||
static int
|
||||
shell_parse_argv (const char *s, int *r_argc, char ***r_argv)
|
||||
{
|
||||
int i;
|
||||
strlist_t list;
|
||||
|
||||
if (shell_parse_stringlist (s, &list))
|
||||
return 1;
|
||||
|
||||
*r_argc = strlist_length (list);
|
||||
*r_argv = xtrycalloc (*r_argc, sizeof **r_argv);
|
||||
if (*r_argv == NULL)
|
||||
return 1;
|
||||
|
||||
for (i = 0; list; i++)
|
||||
(*r_argv)[i] = list->d, list = list->next;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Define Assuan hooks for NPTH. */
|
||||
|
||||
ASSUAN_SYSTEM_NPTH_IMPL;
|
||||
|
||||
@ -169,11 +290,11 @@ int null_names = 0;
|
||||
|
||||
/* Command line parsing. */
|
||||
static void
|
||||
parse_arguments (ARGPARSE_ARGS *pargs)
|
||||
parse_arguments (ARGPARSE_ARGS *pargs, ARGPARSE_OPTS *popts)
|
||||
{
|
||||
int no_more_options = 0;
|
||||
|
||||
while (!no_more_options && optfile_parse (NULL, NULL, NULL, pargs, opts))
|
||||
while (!no_more_options && optfile_parse (NULL, NULL, NULL, pargs, popts))
|
||||
{
|
||||
switch (pargs->r_opt)
|
||||
{
|
||||
@ -219,6 +340,27 @@ parse_arguments (ARGPARSE_ARGS *pargs)
|
||||
case oOpenPGP: /* Dummy option for now. */ break;
|
||||
case oCMS: /* Dummy option for now. */ break;
|
||||
|
||||
case oTarArgs:;
|
||||
int tar_argc;
|
||||
char **tar_argv;
|
||||
|
||||
if (shell_parse_argv (pargs->r.ret_str, &tar_argc, &tar_argv))
|
||||
log_error ("failed to parse tar arguments '%s'\n",
|
||||
pargs->r.ret_str);
|
||||
else
|
||||
{
|
||||
ARGPARSE_ARGS tar_args;
|
||||
tar_args.argc = &tar_argc;
|
||||
tar_args.argv = &tar_argv;
|
||||
tar_args.flags = ARGPARSE_FLAG_ARG0;
|
||||
parse_arguments (&tar_args, tar_opts);
|
||||
if (tar_args.err)
|
||||
log_error ("unsupported tar arguments '%s'\n",
|
||||
pargs->r.ret_str);
|
||||
pargs->err = tar_args.err;
|
||||
}
|
||||
break;
|
||||
|
||||
default: pargs->err = 2; break;
|
||||
}
|
||||
}
|
||||
@ -252,7 +394,7 @@ main (int argc, char **argv)
|
||||
pargs.argc = &argc;
|
||||
pargs.argv = &argv;
|
||||
pargs.flags = ARGPARSE_FLAG_KEEP;
|
||||
parse_arguments (&pargs);
|
||||
parse_arguments (&pargs, opts);
|
||||
|
||||
if ((files_from && !null_names) || (!files_from && null_names))
|
||||
log_error ("--files-from and --null may only be used in conjunction\n");
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user