[Pkg-gnupg-commit] [gnupg2] 86/205: gpg: Add new program gpgcompose.
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Wed May 11 08:38:21 UTC 2016
This is an automated email from the git hooks/post-receive script.
dkg pushed a commit to branch experimental
in repository gnupg2.
commit d040628ddf2c09ddc9581ff365680a568ad24278
Author: Neal H. Walfield <neal at g10code.com>
Date: Wed Mar 2 16:00:44 2016 +0100
gpg: Add new program gpgcompose.
* g10/packet.h: Include "util.h".
* g10/encrypt.c (encrypt_seskey): Don't mark as static.
* g10/gpgcompose.c: New file.
* g10/Makefile.am (noinst_PROGRAMS): Add gpgcompose.
(gpg2_SOURCES): Split everything but gpg.c into...
(gpg_sources): ... this new variable.
(gpgcompose_SOURCES): New variable.
(gpgcompose_LDADD): Likewise.
(gpgcompose_LDFLAGS): Likewise.
--
Signed-off-by: Neal H. Walfield <neal at g10code.com>
---
g10/Makefile.am | 16 +-
g10/encrypt.c | 10 +-
g10/gpgcompose.c | 3038 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
g10/main.h | 1 +
g10/packet.h | 1 +
5 files changed, 3061 insertions(+), 5 deletions(-)
diff --git a/g10/Makefile.am b/g10/Makefile.am
index 10714f6..27333de 100644
--- a/g10/Makefile.am
+++ b/g10/Makefile.am
@@ -36,7 +36,7 @@ bin_PROGRAMS = gpg2
if !HAVE_W32CE_SYSTEM
bin_PROGRAMS += gpgv2
endif
-noinst_PROGRAMS = $(module_tests)
+noinst_PROGRAMS = gpgcompose $(module_tests)
TESTS = $(module_tests)
if ENABLE_BZIP2_SUPPORT
@@ -104,8 +104,7 @@ common_source = \
pkglue.c pkglue.h \
ecdh.c
-gpg2_SOURCES = gpg.c \
- server.c \
+gpg_sources = server.c \
$(common_source) \
pkclist.c \
skclist.c \
@@ -118,7 +117,6 @@ gpg2_SOURCES = gpg.c \
sign.c \
verify.c \
revoke.c \
- keyedit.c \
dearmor.c \
import.c \
export.c \
@@ -135,6 +133,11 @@ gpg2_SOURCES = gpg.c \
$(card_source) \
exec.c exec.h
+gpg2_SOURCES = gpg.c \
+ keyedit.c \
+ $(gpg_sources)
+
+gpgcompose_SOURCES = gpgcompose.c $(gpg_sources)
gpgv2_SOURCES = gpgv.c \
$(common_source) \
verify.c
@@ -157,6 +160,11 @@ gpgv2_LDADD = $(LDADD) $(LIBGCRYPT_LIBS) \
$(LIBICONV) $(resource_objs) $(extra_sys_libs)
gpgv2_LDFLAGS = $(extra_bin_ldflags)
+gpgcompose_LDADD = $(LDADD) $(SQLITE3_LIBS) $(LIBGCRYPT_LIBS) $(LIBREADLINE) \
+ $(LIBASSUAN_LIBS) $(GPG_ERROR_LIBS) \
+ $(LIBICONV) $(resource_objs) $(extra_sys_libs)
+gpgcompose_LDFLAGS = $(extra_bin_ldflags)
+
t_common_ldadd =
module_tests = t-rmd160 t-keydb t-keydb-get-keyblock
t_rmd160_SOURCES = t-rmd160.c rmd160.c
diff --git a/g10/encrypt.c b/g10/encrypt.c
index 2c8508c..fe18c15 100644
--- a/g10/encrypt.c
+++ b/g10/encrypt.c
@@ -66,7 +66,15 @@ encrypt_store (const char *filename)
}
-static void
+/* *SESKEY contains the unencrypted session key ((*SESKEY)->KEY) and
+ the algorithm that will be used to encrypt the contents of the SED
+ packet ((*SESKEY)->ALGO). If *SESKEY is NULL, then a random
+ session key that is appropriate for DEK->ALGO is generated and
+ stored there.
+
+ Encrypt that session key using DEK and store the result in ENCKEY,
+ which must be large enough to hold (*SESKEY)->KEYLEN + 1 bytes. */
+void
encrypt_seskey (DEK *dek, DEK **seskey, byte *enckey)
{
gcry_cipher_hd_t hd;
diff --git a/g10/gpgcompose.c b/g10/gpgcompose.c
new file mode 100644
index 0000000..ada986e
--- /dev/null
+++ b/g10/gpgcompose.c
@@ -0,0 +1,3038 @@
+/* gpgcompose.c - Create OpenPGP messages by hand.
+ * Copyright (C) 2016 g10 Code GmbH
+ *
+ * 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 "gpg.h"
+#include "packet.h"
+#include "keydb.h"
+#include "main.h"
+#include "options.h"
+
+static int do_debug;
+#define debug(fmt, ...) \
+ do { if (do_debug) log_debug (fmt, ##__VA_ARGS__); } while (0)
+
+/* --encryption, for instance, adds a filter in front of out. There
+ is an operator (--encryption-pop) to end this. We use the
+ following infrastructure to make it easy to pop the state. */
+struct filter
+{
+ void *func;
+ void *context;
+ int pkttype;
+ int partial_block_mode;
+ struct filter *next;
+};
+
+static struct filter *filters;
+
+static void
+filter_push (iobuf_t out, void *func, void *context,
+ int type, int partial_block_mode)
+{
+ gpg_error_t err;
+ struct filter *f = xmalloc_clear (sizeof (*f));
+ f->next = filters;
+ f->func = func;
+ f->context = context;
+ f->pkttype = type;
+ f->partial_block_mode = partial_block_mode;
+
+ filters = f;
+
+ err = iobuf_push_filter (out, func, context);
+ if (err)
+ log_fatal ("Adding filter: %s\n", gpg_strerror (err));
+}
+
+static void
+filter_pop (iobuf_t out, int expected_type)
+{
+ gpg_error_t err;
+ struct filter *f = filters;
+
+ log_assert (f);
+
+ if (f->pkttype != expected_type)
+ log_fatal ("Attempted to pop a %s container, "
+ "but current container is a %s container.\n",
+ pkttype_str (f->pkttype), pkttype_str (expected_type));
+
+ if (f->pkttype == PKT_ENCRYPTED || f->pkttype == PKT_ENCRYPTED_MDC)
+ {
+ err = iobuf_pop_filter (out, f->func, f->context);
+ if (err)
+ log_fatal ("Popping encryption filter: %s\n", gpg_strerror (err));
+ }
+ else
+ log_fatal ("FILTERS appears to be corrupted.\n");
+
+ if (f->partial_block_mode)
+ iobuf_set_partial_body_length_mode (out, 0);
+
+ filters = f->next;
+ xfree (f);
+}
+
+/* Return if CIPHER_ID is a valid cipher. */
+static int
+valid_cipher (int cipher_id)
+{
+ return (cipher_id == CIPHER_ALGO_IDEA
+ || cipher_id == CIPHER_ALGO_3DES
+ || cipher_id == CIPHER_ALGO_CAST5
+ || cipher_id == CIPHER_ALGO_BLOWFISH
+ || cipher_id == CIPHER_ALGO_AES
+ || cipher_id == CIPHER_ALGO_AES192
+ || cipher_id == CIPHER_ALGO_AES256
+ || cipher_id == CIPHER_ALGO_TWOFISH
+ || cipher_id == CIPHER_ALGO_CAMELLIA128
+ || cipher_id == CIPHER_ALGO_CAMELLIA192
+ || cipher_id == CIPHER_ALGO_CAMELLIA256);
+}
+
+/* Parse a session key encoded as a string of the form x:HEXDIGITS
+ where x is the algorithm id. (This is the format emitted by gpg
+ --show-session-key.) */
+struct session_key
+{
+ int algo;
+ int keylen;
+ char *key;
+};
+
+static struct session_key
+parse_session_key (const char *option, char *p, int require_algo)
+{
+ char *tail;
+ struct session_key sk;
+
+ memset (&sk, 0, sizeof (sk));
+
+ /* Check for the optional "cipher-id:" at the start of the
+ string. */
+ errno = 0;
+ sk.algo = strtol (p, &tail, 10);
+ if (! errno && tail && *tail == ':')
+ {
+ if (! valid_cipher (sk.algo))
+ log_info ("%s: %d is not a known cipher (but using anyways)\n",
+ option, sk.algo);
+ p = tail + 1;
+ }
+ else if (require_algo)
+ log_fatal ("%s: Session key must have the form algo:HEXCHARACTERS.\n",
+ option);
+ else
+ sk.algo = 0;
+
+ /* Ignore a leading 0x. */
+ if (p[0] == '0' && p[1] == 'x')
+ p += 2;
+
+ if (strlen (p) % 2 != 0)
+ log_fatal ("%s: session key must consist of an even number of hexadecimal characters.\n",
+ option);
+
+ sk.keylen = strlen (p) / 2;
+ sk.key = xmalloc (sk.keylen);
+
+ if (hex2bin (p, sk.key, sk.keylen) == -1)
+ log_fatal ("%s: Session key must only contain hexadecimal characters\n",
+ option);
+
+ return sk;
+}
+
+/* A callback.
+
+ OPTION_STR is the option that was matched. ARGC is the number of
+ arguments following the option and ARGV are those arguments.
+ (Thus, argv[0] is the first string following the option and
+ argv[-1] is the option.)
+
+ COOKIE is the opaque value passed to process_options. */
+typedef int (*option_prcessor_t) (const char *option_str,
+ int argc, char *argv[],
+ void *cookie);
+
+struct option
+{
+ /* The option that this matches. This must start with "--" or be
+ the empty string. The empty string matches bare arguments. */
+ const char *option;
+ /* The function to call to process this option. */
+ option_prcessor_t func;
+ /* Documentation. */
+ const char *help;
+};
+
+/* Merge two lists of options. Note: this makes a shallow copy! The
+ caller must xfree() the result. */
+static struct option *
+merge_options (struct option a[], struct option b[])
+{
+ int i, j;
+ struct option *c;
+
+ for (i = 0; a[i].option; i ++)
+ ;
+ for (j = 0; b[j].option; j ++)
+ ;
+
+ c = xmalloc ((i + j + 1) * sizeof (struct option));
+ memcpy (c, a, i * sizeof (struct option));
+ memcpy (&c[i], b, j * sizeof (struct option));
+ c[i + j].option = NULL;
+
+ if (a[i].help && b[j].help)
+ c[i + j].help = xasprintf ("%s\n\n%s", a[i].help, b[j].help);
+ else if (a[i].help)
+ c[i + j].help = a[i].help;
+ else if (b[j].help)
+ c[i + j].help = b[j].help;
+
+ return c;
+}
+
+/* Returns whether ARG is an option. All options start with --. */
+static int
+is_option (const char *arg)
+{
+ return arg[0] == '-' && arg[1] == '-';
+}
+
+/* OPTIONS is a NULL terminated array of struct option:s. Finds the
+ entry that is the same as ARG. Returns -1 if no entry is found.
+ The empty string option matches bare arguments. */
+static int
+match_option (const struct option options[], const char *arg)
+{
+ int i;
+ int bare_arg = ! is_option (arg);
+
+ for (i = 0; options[i].option; i ++)
+ if ((! bare_arg && strcmp (options[i].option, arg) == 0)
+ /* Non-options match the empty string. */
+ || (bare_arg && options[i].option[0] == '\0'))
+ return i;
+
+ return -1;
+}
+
+static void
+show_help (struct option options[])
+{
+ int i;
+ int max_length = 0;
+ int space;
+
+ for (i = 0; options[i].option; i ++)
+ {
+ const char *option = options[i].option[0] ? options[i].option : "ARG";
+ int l = strlen (option);
+ if (l > max_length)
+ max_length = l;
+ }
+
+ space = 72 - (max_length + 2);
+ if (space < 40)
+ space = 40;
+
+ for (i = 0; ; i ++)
+ {
+ char *option = options[i].option;
+ char *help = options[i].help;
+
+ int l;
+ int j;
+ char *tmp;
+ char *formatted;
+ char *p;
+ char *newline;
+
+ if (! option && ! help)
+ break;
+
+ if (option)
+ {
+ const char *o = option[0] ? option : "ARG";
+ l = strlen (o);
+ fprintf (stderr, "%s", o);
+ }
+
+ if (! help)
+ {
+ fputc ('\n', stderr);
+ continue;
+ }
+
+ if (option)
+ for (j = l; j < max_length + 2; j ++)
+ fputc (' ', stderr);
+
+#define BOLD_START "\033[1m"
+#define NORMAL_RESTORE "\033[0m"
+#define BOLD(x) BOLD_START x NORMAL_RESTORE
+
+ if (! option || options[i].func)
+ tmp = (char *) help;
+ else
+ tmp = xasprintf ("%s " BOLD("(Unimplemented.)"), help);
+
+ if (! option)
+ space = 72;
+ formatted = format_text (tmp, 0, space, space + 4);
+
+ if (tmp != help)
+ xfree (tmp);
+
+ if (! option)
+ {
+ fprintf (stderr, "\n%s\n", formatted);
+ break;
+ }
+
+ for (p = formatted;
+ p && *p;
+ p = (*newline == '\0') ? newline : newline + 1)
+ {
+ newline = strchr (p, '\n');
+ if (! newline)
+ newline = &p[strlen (p)];
+
+ l = (size_t) newline - (size_t) p;
+
+ if (p != formatted)
+ for (j = 0; j < max_length + 2; j ++)
+ fputc (' ', stderr);
+
+ fwrite (p, l, 1, stderr);
+ fputc ('\n', stderr);
+ }
+
+ xfree (formatted);
+ }
+}
+
+/* Return value is number of consumed argv elements. */
+static int
+process_options (const char *parent_option,
+ struct option break_options[],
+ struct option local_options[], void *lcookie,
+ struct option global_options[], void *gcookie,
+ int argc, char *argv[])
+{
+ int i;
+ for (i = 0; i < argc; i ++)
+ {
+ int j;
+ struct option *option;
+ void *cookie;
+ int bare_arg;
+ option_prcessor_t func;
+ int consumed;
+
+ if (break_options)
+ {
+ j = match_option (break_options, argv[i]);
+ if (j != -1)
+ /* Match. Break out. */
+ return i;
+ }
+
+ j = match_option (local_options, argv[i]);
+ if (j == -1)
+ {
+ if (global_options)
+ j = match_option (global_options, argv[i]);
+ if (j == -1)
+ {
+ if (strcmp (argv[i], "--help") == 0)
+ {
+ if (! global_options)
+ show_help (local_options);
+ else
+ {
+ struct option *combined
+ = merge_options (local_options, global_options);
+ show_help (combined);
+ xfree (combined);
+ }
+ g10_exit (0);
+ }
+
+ if (parent_option)
+ log_fatal ("%s: Unknown option: %s\n", parent_option, argv[i]);
+ else
+ log_fatal ("Unknown option: %s\n", argv[i]);
+ }
+
+ option = &global_options[j];
+ cookie = gcookie;
+ }
+ else
+ {
+ option = &local_options[j];
+ cookie = lcookie;
+ }
+
+ bare_arg = strcmp (option->option, "") == 0;
+
+ func = option->func;
+ if (! func)
+ {
+ if (bare_arg)
+ log_fatal ("Bare arguments unimplemented.\n");
+ else
+ log_fatal ("Unimplemented option: %s\n",
+ option->option);
+ }
+
+ consumed = func (bare_arg ? parent_option : argv[i],
+ argc - i - !bare_arg, &argv[i + !bare_arg],
+ cookie);
+ i += consumed;
+ if (bare_arg)
+ i --;
+ }
+
+ return i;
+}
+
+/* The keys, subkeys, user ids and user attributes in the order that
+ they were added. */
+PACKET components[20];
+/* The number of components. */
+int ncomponents;
+
+static int
+add_component (int pkttype, void *component)
+{
+ int i = ncomponents ++;
+
+ log_assert (i < sizeof (components) / sizeof (components[0]));
+ log_assert (pkttype == PKT_PUBLIC_KEY
+ || pkttype == PKT_PUBLIC_SUBKEY
+ || pkttype == PKT_SECRET_KEY
+ || pkttype == PKT_SECRET_SUBKEY
+ || pkttype == PKT_USER_ID
+ || pkttype == PKT_ATTRIBUTE);
+
+ components[i].pkttype = pkttype;
+ components[i].pkt.generic = component;
+
+ return i;
+}
+
+static void
+dump_component (PACKET *pkt)
+{
+ struct kbnode_struct kbnode;
+
+ if (! do_debug)
+ return;
+
+ memset (&kbnode, 0, sizeof (kbnode));
+ kbnode.pkt = pkt;
+ dump_kbnode (&kbnode);
+}
+
+/* Returns the first primary key in COMPONENTS or NULL if there is
+ none. */
+static PKT_public_key *
+primary_key (void)
+{
+ int i;
+ for (i = 0; i < ncomponents; i ++)
+ if (components[i].pkttype == PKT_PUBLIC_KEY)
+ return components[i].pkt.public_key;
+ return NULL;
+}
+
+/* The last session key (updated when adding a SK-ESK, PK-ESK or SED
+ packet. */
+static DEK session_key;
+
+static int user_id (const char *option, int argc, char *argv[],
+ void *cookie);
+static int public_key (const char *option, int argc, char *argv[],
+ void *cookie);
+static int sk_esk (const char *option, int argc, char *argv[],
+ void *cookie);
+static int pk_esk (const char *option, int argc, char *argv[],
+ void *cookie);
+static int encrypted (const char *option, int argc, char *argv[],
+ void *cookie);
+static int encrypted_pop (const char *option, int argc, char *argv[],
+ void *cookie);
+static int literal (const char *option, int argc, char *argv[],
+ void *cookie);
+static int signature (const char *option, int argc, char *argv[],
+ void *cookie);
+static int copy (const char *option, int argc, char *argv[],
+ void *cookie);
+
+static struct option major_options[] = {
+ { "--user-id", user_id, "Create a user id packet." },
+ { "--public-key", public_key, "Create a public key packet." },
+ { "--private-key", NULL, "Create a private key packet." },
+ { "--public-subkey", public_key, "Create a subkey packet." },
+ { "--private-subkey", NULL, "Create a private subkey packet." },
+ { "--sk-esk", sk_esk,
+ "Create a symmetric-key encrypted session key packet." },
+ { "--pk-esk", pk_esk,
+ "Create a public-key encrypted session key packet." },
+ { "--encrypted", encrypted, "Create a symmetrically encrypted data packet." },
+ { "--encrypted-mdc", encrypted,
+ "Create a symmetrically encrypted and integrity protected data packet." },
+ { "--encrypted-pop", encrypted_pop,
+ "Pop an encryption container." },
+ { "--compressed", NULL, "Create a compressed data packet." },
+ { "--literal", literal, "Create a literal (plaintext) data packet." },
+ { "--signature", signature, "Create a signature packet." },
+ { "--onepass-sig", NULL, "Create a one-pass signature packet." },
+ { "--copy", copy, "Copy the specified file." },
+ { NULL, NULL,
+ "To get more information about a given command, use:\n\n"
+ " $ gpgcompose --command --help to list a command's options."},
+};
+
+static struct option global_options[] = {
+ { NULL, NULL, NULL },
+};
+
+/* Make our lives easier and use a static limit for the user name.
+ 10k is way more than enough anyways... */
+const int user_id_max_len = 10 * 1024;
+
+static int
+user_id_name (const char *option, int argc, char *argv[], void *cookie)
+{
+ PKT_user_id *uid = cookie;
+ int l;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s USER_ID\n", option);
+
+ if (uid->len)
+ log_fatal ("Attempt to set user id multiple times.\n");
+
+ l = strlen (argv[0]);
+ if (l > user_id_max_len)
+ log_fatal ("user id too long (max: %d)\n", user_id_max_len);
+
+ memcpy (uid->name, argv[0], l);
+ uid->name[l] = 0;
+ uid->len = l;
+
+ return 1;
+}
+
+static struct option user_id_options[] = {
+ { "", user_id_name,
+ "Set the user id. This is usually in the format "
+ "\"Name (comment) <email at example.org>\"" },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --user-id \"USERID\" | gpg2 --list-packets" }
+};
+
+static int
+user_id (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ gpg_error_t err;
+ PKT_user_id *uid = xmalloc_clear (sizeof (*uid) + user_id_max_len);
+ int c = add_component (PKT_USER_ID, uid);
+ int processed;
+
+ processed = process_options (option,
+ major_options,
+ user_id_options, uid,
+ global_options, NULL,
+ argc, argv);
+
+ if (! uid->len)
+ log_fatal ("%s: user id not given", option);
+
+ err = build_packet (out, &components[c]);
+ if (err)
+ log_fatal ("Serializing user id packet: %s\n", gpg_strerror (err));
+
+ debug ("Wrote user id packet:\n");
+ dump_component (&components[c]);
+
+ return processed;
+}
+
+static int
+pk_search_terms (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ KEYDB_HANDLE hd;
+ KEYDB_SEARCH_DESC desc;
+ kbnode_t kb;
+ PKT_public_key *pk = cookie;
+ PKT_public_key *pk_ref;
+ int i;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s KEYID\n", option);
+
+ if (pk->pubkey_algo)
+ log_fatal ("%s: multiple keys provided\n", option);
+
+ err = classify_user_id (argv[0], &desc, 0);
+ if (err)
+ log_fatal ("search terms '%s': %s\n", argv[0], gpg_strerror (err));
+
+ hd = keydb_new ();
+
+ err = keydb_search (hd, &desc, 1, NULL);
+ if (err)
+ log_fatal ("looking up '%s': %s\n", argv[0], gpg_strerror (err));
+
+ err = keydb_get_keyblock (hd, &kb);
+ if (err)
+ log_fatal ("retrieving keyblock for '%s': %s\n",
+ argv[0], gpg_strerror (err));
+
+ keydb_release (hd);
+
+ pk_ref = kb->pkt->pkt.public_key;
+
+ /* Copy the timestamp (if not already set), algo and public key
+ parameters. */
+ if (! pk->timestamp)
+ pk->timestamp = pk_ref->timestamp;
+ pk->pubkey_algo = pk_ref->pubkey_algo;
+ for (i = 0; i < pubkey_get_npkey (pk->pubkey_algo); i ++)
+ pk->pkey[i] = gcry_mpi_copy (pk_ref->pkey[i]);
+
+ release_kbnode (kb);
+
+ return 1;
+}
+
+static int
+pk_timestamp (const char *option, int argc, char *argv[], void *cookie)
+{
+ PKT_public_key *pk = cookie;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s TIMESTAMP\n", option);
+
+ errno = 0;
+ pk->timestamp = parse_timestamp (argv[0], &tail);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ return 1;
+}
+
+#define TIMESTAMP_HELP \
+ "Either as seconds since the epoch or as an ISO 8601 formatted " \
+ "string (yyyymmddThhmmss, where the T is a literal)."
+
+static struct option pk_options[] = {
+ { "--timestamp", pk_timestamp,
+ "The creation time. " TIMESTAMP_HELP },
+ { "", pk_search_terms,
+ "The key to copy the creation time and public key parameters from." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --public-key $KEYID --user-id \"USERID\" \\\n"
+ " | gpg2 --list-packets" }
+};
+
+static int
+public_key (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ iobuf_t out = cookie;
+ PKT_public_key *pk;
+ int c;
+ int processed;
+ int t = (strcmp (option, "--public-key") == 0
+ ? PKT_PUBLIC_KEY : PKT_PUBLIC_SUBKEY);
+
+ (void) option;
+
+ pk = xmalloc_clear (sizeof (*pk));
+ pk->version = 4;
+
+ c = add_component (t, pk);
+
+ processed = process_options (option,
+ major_options,
+ pk_options, pk,
+ global_options, NULL,
+ argc, argv);
+
+ if (! pk->pubkey_algo)
+ log_fatal ("%s: key to extract public key parameters from not given",
+ option);
+
+ /* Clear the keyid in case we updated one of the relevant fields
+ after accessing it. */
+ pk->keyid[0] = pk->keyid[1] = 0;
+
+ err = build_packet (out, &components[c]);
+ if (err)
+ log_fatal ("serializing %s packet: %s\n",
+ t == PKT_PUBLIC_KEY ? "public key" : "subkey",
+ gpg_strerror (err));
+
+ debug ("Wrote %s packet:\n",
+ t == PKT_PUBLIC_KEY ? "public key" : "subkey");
+ dump_component (&components[c]);
+
+ return processed;
+}
+
+struct siginfo
+{
+ /* Key with which to sign. */
+ kbnode_t issuer_kb;
+ PKT_public_key *issuer_pk;
+
+ /* Overrides the issuer's key id. */
+ u32 issuer_keyid[2];
+ /* Sets the issuer's keyid to the primary key's key id. */
+ int issuer_keyid_self;
+
+ /* Key to sign. */
+ PKT_public_key *pk;
+ /* Subkey to sign. */
+ PKT_public_key *sk;
+ /* User id to sign. */
+ PKT_user_id *uid;
+
+ int class;
+ int digest_algo;
+ u32 timestamp;
+ u32 key_expiration;
+
+ byte *cipher_algorithms;
+ int cipher_algorithms_len;
+ byte *digest_algorithms;
+ int digest_algorithms_len;
+ byte *compress_algorithms;
+ int compress_algorithms_len;
+
+ u32 expiration;
+
+ int exportable_set;
+ int exportable;
+
+ int revocable_set;
+ int revocable;
+
+ int trust_level_set;
+ byte trust_args[2];
+
+ char *trust_scope;
+
+ struct revocation_key *revocation_key;
+ int nrevocation_keys;
+
+ struct notation *notations;
+
+ byte *key_server_preferences;
+ int key_server_preferences_len;
+
+ char *key_server;
+
+ int primary_user_id_set;
+ int primary_user_id;
+
+ char *policy_uri;
+
+ byte *key_flags;
+ int key_flags_len;
+
+ char *signers_user_id;
+
+ byte reason_for_revocation_code;
+ char *reason_for_revocation;
+
+ byte *features;
+ int features_len;
+
+ /* Whether to corrupt the signature. */
+ int corrupt;
+};
+
+static int
+sig_issuer (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ KEYDB_HANDLE hd;
+ KEYDB_SEARCH_DESC desc;
+ struct siginfo *si = cookie;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s KEYID\n", option);
+
+ if (si->issuer_pk)
+ log_fatal ("%s: multiple keys provided\n", option);
+
+ err = classify_user_id (argv[0], &desc, 0);
+ if (err)
+ log_fatal ("search terms '%s': %s\n", argv[0], gpg_strerror (err));
+
+ hd = keydb_new ();
+
+ err = keydb_search (hd, &desc, 1, NULL);
+ if (err)
+ log_fatal ("looking up '%s': %s\n", argv[0], gpg_strerror (err));
+
+ err = keydb_get_keyblock (hd, &si->issuer_kb);
+ if (err)
+ log_fatal ("retrieving keyblock for '%s': %s\n",
+ argv[0], gpg_strerror (err));
+
+ keydb_release (hd);
+
+ si->issuer_pk = si->issuer_kb->pkt->pkt.public_key;
+
+ return 1;
+}
+
+static int
+sig_issuer_keyid (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ KEYDB_SEARCH_DESC desc;
+ struct siginfo *si = cookie;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s KEYID|self\n", option);
+
+ if (si->issuer_keyid[0] || si->issuer_keyid[1] || si->issuer_keyid_self)
+ log_fatal ("%s given multiple times.\n", option);
+
+ if (strcasecmp (argv[0], "self") == 0)
+ {
+ si->issuer_keyid_self = 1;
+ return 1;
+ }
+
+ err = classify_user_id (argv[0], &desc, 0);
+ if (err)
+ log_fatal ("search terms '%s': %s\n", argv[0], gpg_strerror (err));
+
+ if (desc.mode != KEYDB_SEARCH_MODE_LONG_KID)
+ log_fatal ("%s is not a valid long key id.\n", argv[0]);
+
+ keyid_copy (si->issuer_keyid, desc.u.kid);
+
+ return 1;
+}
+
+static int
+sig_pk (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s COMPONENT_INDEX\n", option);
+
+ errno = 0;
+ i = strtoul (argv[0], &tail, 10);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ if (i >= ncomponents)
+ log_fatal ("%d: No such component (have %d components so far)\n",
+ i, ncomponents);
+ if (! (components[i].pkttype == PKT_PUBLIC_KEY
+ || components[i].pkttype == PKT_PUBLIC_SUBKEY))
+ log_fatal ("Component %d is not a public key or a subkey.", i);
+
+ if (strcmp (option, "--pk") == 0)
+ {
+ if (si->pk)
+ log_fatal ("%s already given.\n", option);
+ si->pk = components[i].pkt.public_key;
+ }
+ else if (strcmp (option, "--sk") == 0)
+ {
+ if (si->sk)
+ log_fatal ("%s already given.\n", option);
+ si->sk = components[i].pkt.public_key;
+ }
+ else
+ log_fatal ("Cannot handle %s\n", option);
+
+ return 1;
+}
+
+static int
+sig_user_id (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s COMPONENT_INDEX\n", option);
+ if (si->uid)
+ log_fatal ("%s already given.\n", option);
+
+ errno = 0;
+ i = strtoul (argv[0], &tail, 10);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ if (i >= ncomponents)
+ log_fatal ("%d: No such component (have %d components so far)\n",
+ i, ncomponents);
+ if (! (components[i].pkttype != PKT_USER_ID
+ || components[i].pkttype == PKT_ATTRIBUTE))
+ log_fatal ("Component %d is not a public key or a subkey.", i);
+
+ si->uid = components[i].pkt.user_id;
+
+ return 1;
+}
+
+static int
+sig_class (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s CLASS\n", option);
+
+ errno = 0;
+ i = strtoul (argv[0], &tail, 0);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ si->class = i;
+
+ return 1;
+}
+
+static int
+sig_digest (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s DIGEST_ALGO\n", option);
+
+ errno = 0;
+ i = strtoul (argv[0], &tail, 10);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ si->digest_algo = i;
+
+ return 1;
+}
+
+static int
+sig_timestamp (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s TIMESTAMP\n", option);
+
+ errno = 0;
+ si->timestamp = parse_timestamp (argv[0], &tail);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ return 1;
+}
+
+static int
+sig_expiration (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int is_expiration = strcmp (option, "--expiration") == 0;
+ u32 *i = is_expiration ? &si->expiration : &si->key_expiration;
+
+ if (! is_expiration)
+ log_assert (strcmp (option, "--key-expiration") == 0);
+
+ if (argc == 0)
+ log_fatal ("Usage: %s DURATION\n", option);
+
+ *i = parse_expire_string (argv[0]);
+ if (*i == (u32)-1)
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+
+ return 1;
+}
+
+static int
+sig_int_list (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int nvalues = 1;
+ char *values = xmalloc (nvalues * sizeof (values[0]));
+ char *tail = argv[0];
+ int i;
+ byte **a;
+ int *n;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s VALUE[,VALUE...]\n", option);
+
+ for (i = 0; tail && *tail; i ++)
+ {
+ int v;
+ char *old_tail = tail;
+
+ errno = 0;
+ v = strtol (tail, &tail, 0);
+ if (errno || old_tail == tail || (tail && !(*tail == ',' || *tail == 0)))
+ log_fatal ("Invalid value passed to %s (%s). "
+ "Expected a list of comma separated numbers\n",
+ option, argv[0]);
+
+ if (! (0 <= v && v <= 255))
+ log_fatal ("%s: %d is out of range (Expected: 0-255)\n", option, v);
+
+ if (i == nvalues)
+ {
+ nvalues *= 2;
+ values = xrealloc (values, nvalues * sizeof (values[0]));
+ }
+
+ values[i] = v;
+
+ if (*tail == ',')
+ tail ++;
+ else
+ log_assert (*tail == 0);
+ }
+
+ if (strcmp ("--cipher-algos", option) == 0)
+ {
+ a = &si->cipher_algorithms;
+ n = &si->cipher_algorithms_len;
+ }
+ else if (strcmp ("--digest-algos", option) == 0)
+ {
+ a = &si->digest_algorithms;
+ n = &si->digest_algorithms_len;
+ }
+ else if (strcmp ("--compress-algos", option) == 0)
+ {
+ a = &si->compress_algorithms;
+ n = &si->compress_algorithms_len;
+ }
+ else
+ log_fatal ("Cannot handle %s\n", option);
+
+ if (*a)
+ log_fatal ("Option %s given multiple times.\n", option);
+
+ *a = values;
+ *n = i;
+
+ return 1;
+}
+
+static int
+sig_flag (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int range[2] = {0, 255};
+ char *tail;
+ int v;
+
+ if (strcmp (option, "--primary-user-id") == 0)
+ range[1] = 1;
+
+ if (argc <= 1)
+ {
+ if (range[0] == 0 && range[1] == 1)
+ log_fatal ("Usage: %s 0|1\n", option);
+ else
+ log_fatal ("Usage: %s %d-%d\n", option, range[0], range[1]);
+ }
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail) || !(range[0] <= v && v <= range[1]))
+ log_fatal ("Invalid value passed to %s (%s). Expected %d-%d\n",
+ option, argv[0], range[0], range[1]);
+
+ if (strcmp (option, "--exportable") == 0)
+ {
+ si->exportable_set = 1;
+ si->exportable = v;
+ }
+ else if (strcmp (option, "--revocable") == 0)
+ {
+ si->revocable_set = 1;
+ si->revocable = v;
+ }
+ else if (strcmp (option, "--primary-user-id") == 0)
+ {
+ si->primary_user_id_set = 1;
+ si->primary_user_id = v;
+ }
+ else
+ log_fatal ("Cannot handle %s\n", option);
+
+ return 1;
+}
+
+static int
+sig_trust_level (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+ char *tail;
+
+ if (argc <= 1)
+ log_fatal ("Usage: %s DEPTH TRUST_AMOUNT\n", option);
+
+ for (i = 0; i < sizeof (si->trust_args) / sizeof (si->trust_args[0]); i ++)
+ {
+ int v;
+
+ errno = 0;
+ v = strtol (argv[i], &tail, 0);
+ if (errno || (tail && *tail) || !(0 <= v && v <= 255))
+ log_fatal ("Invalid value passed to %s (%s). Expected 0-255\n",
+ option, argv[i]);
+
+ si->trust_args[i] = v;
+ }
+
+ si->trust_level_set = 1;
+
+ return 2;
+}
+
+static int
+sig_string_arg (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ char *p = argv[0];
+ char **s;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s STRING\n", option);
+
+ if (strcmp (option, "--trust-scope") == 0)
+ s = &si->trust_scope;
+ else if (strcmp (option, "--key-server") == 0)
+ s = &si->key_server;
+ else if (strcmp (option, "--signers-user-id") == 0)
+ s = &si->signers_user_id;
+ else if (strcmp (option, "--policy-uri") == 0)
+ s = &si->policy_uri;
+ else
+ log_fatal ("Cannot handle %s\n", option);
+
+ if (*s)
+ log_fatal ("%s already given.\n", option);
+
+ *s = xstrdup (p);
+
+ return 1;
+}
+
+static int
+sig_revocation_key (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ struct siginfo *si = cookie;
+ int v;
+ char *tail;
+ PKT_public_key pk;
+ struct revocation_key *revkey;
+
+ if (argc < 2)
+ log_fatal ("Usage: %s CLASS KEYID\n", option);
+
+ memset (&pk, 0, sizeof (pk));
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 16);
+ if (errno || (tail && *tail) || !(0 <= v && v <= 255))
+ log_fatal ("%s: Invalid class value (%s). Expected 0-255\n",
+ option, argv[0]);
+
+ pk.req_usage = PUBKEY_USAGE_SIG;
+ err = get_pubkey_byname (NULL, NULL, &pk, argv[1], NULL, NULL, 1, 1);
+ if (err)
+ log_fatal ("looking up key %s: %s\n", argv[1], gpg_strerror (err));
+
+ si->nrevocation_keys ++;
+ si->revocation_key = xrealloc (si->revocation_key,
+ si->nrevocation_keys
+ * sizeof (*si->revocation_key));
+ revkey = &si->revocation_key[si->nrevocation_keys - 1];
+
+ revkey->class = v;
+ revkey->algid = pk.pubkey_algo;
+ fingerprint_from_pk (&pk, revkey->fpr, NULL);
+
+ release_public_key_parts (&pk);
+
+ return 2;
+}
+
+static int
+sig_notation (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int is_blob = strcmp (option, "--notation") != 0;
+ struct notation *notation;
+ char *p = argv[0];
+ int p_free = 0;
+ char *data;
+ int data_size;
+ int data_len;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s [!<]name=value\n", option);
+
+ if ((p[0] == '!' && p[1] == '<') || p[0] == '<')
+ /* Read from a file. */
+ {
+ char *filename = NULL;
+ iobuf_t in;
+ int prefix;
+
+ if (p[0] == '<')
+ p ++;
+ else
+ {
+ /* Remove the '<', which string_to_notation does not
+ understand, and preserve the '!'. */
+ p = xstrdup (&p[1]);
+ p_free = 1;
+ p[0] = '!';
+ }
+
+ filename = strchr (p, '=');
+ if (! filename)
+ log_fatal ("No value specified. Usage: %s [!<]name=value\n",
+ option);
+ filename ++;
+
+ prefix = (size_t) filename - (size_t) p;
+
+ errno = 0;
+ in = iobuf_open (filename);
+ if (! in)
+ log_fatal ("Opening '%s': %s\n",
+ filename, errno ? strerror (errno): "unknown error");
+
+ /* A notation can be at most about a few dozen bytes short of
+ 64k. Since this is relatively small, we just allocate that
+ much instead of trying to dynamically size a buffer. */
+ data_size = 64 * 1024;
+ data = xmalloc (data_size);
+ log_assert (prefix <= data_size);
+ memcpy (data, p, prefix);
+
+ data_len = iobuf_read (in, &data[prefix], data_size - prefix - 1);
+ if (data_len == -1)
+ /* EOF => 0 bytes read. */
+ data_len = 0;
+
+ if (data_len == data_size - prefix - 1)
+ /* Technically, we should do another read and check for EOF,
+ but what's one byte more or less? */
+ log_fatal ("Notation data doesn't fit in the packet.\n");
+
+ iobuf_close (in);
+
+ /* NUL terminate it. */
+ data[prefix + data_len] = 0;
+
+ if (p_free)
+ xfree (p);
+ p = data;
+ p_free = 1;
+ data = &p[prefix];
+
+ if (is_blob)
+ p[prefix - 1] = 0;
+ }
+ else if (is_blob)
+ {
+ data = strchr (p, '=');
+ if (! data)
+ {
+ data = p;
+ data_len = 0;
+ }
+ else
+ {
+ p = xstrdup (p);
+ p_free = 1;
+
+ data = strchr (p, '=');
+ log_assert (data);
+
+ /* NUL terminate the name. */
+ *data = 0;
+ data ++;
+ data_len = strlen (data);
+ }
+ }
+
+ if (is_blob)
+ notation = blob_to_notation (p, data, data_len);
+ else
+ notation = string_to_notation (p, 1);
+ if (! notation)
+ log_fatal ("creating notation: an unknown error occured.\n");
+ notation->next = si->notations;
+ si->notations = notation;
+
+ if (p_free)
+ xfree (p);
+
+ return 1;
+}
+
+static int
+sig_big_endian_arg (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ char *p = argv[0];
+ int i;
+ int l;
+ char *bytes;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s HEXDIGITS\n", option);
+
+ /* Skip a leading "0x". */
+ if (p[0] == '0' && p[1] == 'x')
+ p += 2;
+
+ for (i = 0; i < strlen (p); i ++)
+ if (!hexdigitp (&p[i]))
+ log_fatal ("%s: argument ('%s') must consist of hex digits.\n",
+ option, p);
+ if (strlen (p) % 2 != 0)
+ log_fatal ("%s: argument ('%s') must contain an even number of hex digits.\n",
+ option, p);
+
+ l = strlen (p) / 2;
+ bytes = xmalloc (l);
+ hex2bin (p, bytes, l);
+
+ if (strcmp (option, "--key-server-preferences") == 0)
+ {
+ if (si->key_server_preferences)
+ log_fatal ("%s given multiple times.\n", option);
+ si->key_server_preferences = bytes;
+ si->key_server_preferences_len = l;
+ }
+ else if (strcmp (option, "--key-flags") == 0)
+ {
+ if (si->key_flags)
+ log_fatal ("%s given multiple times.\n", option);
+ si->key_flags = bytes;
+ si->key_flags_len = l;
+ }
+ else if (strcmp (option, "--features") == 0)
+ {
+ if (si->features)
+ log_fatal ("%s given multiple times.\n", option);
+ si->features = bytes;
+ si->features_len = l;
+ }
+ else
+ log_fatal ("Cannot handle %s\n", option);
+
+ return 1;
+}
+
+static int
+sig_reason_for_revocation (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+ int v;
+ char *tail;
+
+ if (argc < 2)
+ log_fatal ("Usage: %s REASON_CODE REASON_STRING\n", option);
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 16);
+ if (errno || (tail && *tail) || !(0 <= v && v <= 255))
+ log_fatal ("%s: Invalid reason code (%s). Expected 0-255\n",
+ option, argv[0]);
+
+ if (si->reason_for_revocation)
+ log_fatal ("%s given multiple times.\n", option);
+
+ si->reason_for_revocation_code = v;
+ si->reason_for_revocation = xstrdup (argv[1]);
+
+ return 2;
+}
+
+static int
+sig_corrupt (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct siginfo *si = cookie;
+
+ (void) option;
+ (void) argc;
+ (void) argv;
+ (void) cookie;
+
+ si->corrupt = 1;
+
+ return 0;
+}
+
+static struct option sig_options[] = {
+ { "--issuer", sig_issuer,
+ "The key to use to generate the signature."},
+ { "--issuer-keyid", sig_issuer_keyid,
+ "Set the issuer's key id. This is useful for creating a "
+ "self-signature. As a special case, the value \"self\" refers "
+ "to the primary key's key id. "
+ "(RFC 4880, Section 5.2.3.5)" },
+ { "--pk", sig_pk,
+ "The primary keyas an index into the components (keys and uids) "
+ "created so far where the first component has the index 0." },
+ { "--sk", sig_pk,
+ "The subkey as an index into the components (keys and uids) created "
+ "so far where the first component has the index 0. Only needed for "
+ "0x18, 0x19, and 0x28 signatures." },
+ { "--user-id", sig_user_id,
+ "The user id as an index into the components (keys and uids) created "
+ "so far where the first component has the index 0. Only needed for "
+ "0x10-0x13 and 0x30 signatures." },
+ { "--class", sig_class,
+ "The signature's class. Valid values are "
+ "0x10-0x13 (user id and primary-key certification), "
+ "0x18 (subkey binding), "
+ "0x19 (primary key binding), "
+ "0x1f (direct primary key signature), "
+ "0x20 (key revocation), "
+ "0x28 (subkey revocation), and "
+ "0x30 (certification revocation)."
+ },
+ { "--digest", sig_digest, "The digest algorithm" },
+ { "--timestamp", sig_timestamp,
+ "The signature's creation time. " TIMESTAMP_HELP " 0 means now. "
+ "(RFC 4880, Section 5.2.3.4)" },
+ { "--key-expiration", sig_expiration,
+ "The number of days until the associated key expires. To specify "
+ "seconds, prefix the value with \"seconds=\". It is also possible "
+ "to use 'y', 'm' and 'w' as simple multipliers. For instance, 2y "
+ "means 2 years, etc. "
+ "(RFC 4880, Section 5.2.3.6)" },
+ { "--cipher-algos", sig_int_list,
+ "A comma separated list of the preferred cipher algorithms (identified by "
+ "their number, see RFC 4880, Section 9). "
+ "(RFC 4880, Section 5.2.3.7)" },
+ { "--digest-algos", sig_int_list,
+ "A comma separated list of the preferred algorithms (identified by "
+ "their number, see RFC 4880, Section 9). "
+ "(RFC 4880, Section 5.2.3.8)" },
+ { "--compress-algos", sig_int_list,
+ "A comma separated list of the preferred algorithms (identified by "
+ "their number, see RFC 4880, Section 9)."
+ "(RFC 4880, Section 5.2.3.9)" },
+ { "--expiration", sig_expiration,
+ "The number of days until the signature expires. To specify seconds, "
+ "prefix the value with \"seconds=\". It is also possible to use 'y', "
+ "'m' and 'w' as simple multipliers. For instance, 2y means 2 years, "
+ "etc. "
+ "(RFC 4880, Section 5.2.3.10)" },
+ { "--exportable", sig_flag,
+ "Mark this signature as exportable (1) or local (0). "
+ "(RFC 4880, Section 5.2.3.11)" },
+ { "--revocable", sig_flag,
+ "Mark this signature as revocable (1, revocations are ignored) "
+ "or non-revocable (0). "
+ "(RFC 4880, Section 5.2.3.12)" },
+ { "--trust-level", sig_trust_level,
+ "Set the trust level. This takes two integer arguments (0-255): "
+ "the trusted-introducer level and the degree of trust. "
+ "(RFC 4880, Section 5.2.3.13.)" },
+ { "--trust-scope", sig_string_arg,
+ "A regular expression that limits the scope of --trust-level. "
+ "(RFC 4880, Section 5.2.3.14.)" },
+ { "--revocation-key", sig_revocation_key,
+ "Specify a designated revoker. Takes two arguments: the class "
+ "(normally 0x80 or 0xC0 (sensitive)) and the key id of the "
+ "designatured revoker. May be given multiple times. "
+ "(RFC 4880, Section 5.2.3.15)" },
+ { "--notation", sig_notation,
+ "Add a human-readable notation of the form \"[!<]name=value\" where "
+ "\"!\" means that the critical flag should be set and \"<\" means "
+ "that VALUE is a file to read the data from. "
+ "(RFC 4880, Section 5.2.3.16)" },
+ { "--notation-binary", sig_notation,
+ "Add a binary notation of the form \"[!<]name=value\" where "
+ "\"!\" means that the critical flag should be set and \"<\" means "
+ "that VALUE is a file to read the data from. "
+ "(RFC 4880, Section 5.2.3.16)" },
+ { "--key-server-preferences", sig_big_endian_arg,
+ "Big-endian number encoding the key server preferences. "
+ "(RFC 4880, Section 5.2.3.17)" },
+ { "--key-server", sig_string_arg,
+ "The preferred key server. (RFC 4880, Section 5.2.3.18)" },
+ { "--primary-user-id", sig_flag,
+ "Sets the primary user id flag. (RFC 4880, Section 5.2.3.19)" },
+ { "--policy-uri", sig_string_arg,
+ "URI of a document that describes the issuer's signing policy. "
+ "(RFC 4880, Section 5.2.3.20)" },
+ { "--key-flags", sig_big_endian_arg,
+ "Big-endian number encoding the key flags. "
+ "(RFC 4880, Section 5.2.3.21)" },
+ { "--signers-user-id", sig_string_arg,
+ "The user id (as a string) responsible for the signing. "
+ "(RFC 4880, Section 5.2.3.22)" },
+ { "--reason-for-revocation", sig_reason_for_revocation,
+ "Takes two arguments: a reason for revocation code and a "
+ "user-provided string. "
+ "(RFC 4880, Section 5.2.3.23)" },
+ { "--features", sig_big_endian_arg,
+ "Big-endian number encoding the feature flags. "
+ "(RFC 4880, Section 5.2.3.24)" },
+ { "--signature-target", NULL,
+ "Takes three arguments: the target signature's public key algorithm "
+ " (as an integer), the hash algorithm (as an integer) and the hash "
+ " (as a hexadecimal string). "
+ "(RFC 4880, Section 5.2.3.25)" },
+ { "--embedded-signature", NULL,
+ "An embedded signature. This must be immediately followed by a "
+ "signature packet (created using --signature ...) or a filename "
+ "containing the packet."
+ "(RFC 4880, Section 5.2.3.26)" },
+ { "--hashed", NULL,
+ "The following attributes will be placed in the hashed area of "
+ "the signature. (This is the default and it reset at the end of"
+ "each signature.)" },
+ { "--unhashed", NULL,
+ "The following attributes will be placed in the unhashed area of "
+ "the signature (and thus not integrity protected)." },
+ { "--corrupt", sig_corrupt,
+ "Corrupt the signature." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --public-key $KEYID --user-id USERID \\\n"
+ " --signature --class 0x10 --issuer $KEYID --issuer-keyid self \\\n"
+ " | gpg2 --list-packets"}
+};
+
+static int
+mksubpkt_callback (PKT_signature *sig, void *cookie)
+{
+ struct siginfo *si = cookie;
+ int i;
+
+ if (si->key_expiration)
+ {
+ char buf[4];
+ buf[0] = (si->key_expiration >> 24) & 0xff;
+ buf[1] = (si->key_expiration >> 16) & 0xff;
+ buf[2] = (si->key_expiration >> 8) & 0xff;
+ buf[3] = si->key_expiration & 0xff;
+ build_sig_subpkt (sig, SIGSUBPKT_KEY_EXPIRE, buf, 4);
+ }
+
+ if (si->cipher_algorithms)
+ build_sig_subpkt (sig, SIGSUBPKT_PREF_SYM,
+ si->cipher_algorithms,
+ si->cipher_algorithms_len);
+
+ if (si->digest_algorithms)
+ build_sig_subpkt (sig, SIGSUBPKT_PREF_HASH,
+ si->digest_algorithms,
+ si->digest_algorithms_len);
+
+ if (si->compress_algorithms)
+ build_sig_subpkt (sig, SIGSUBPKT_PREF_COMPR,
+ si->compress_algorithms,
+ si->compress_algorithms_len);
+
+ if (si->exportable_set)
+ {
+ char buf = si->exportable;
+ build_sig_subpkt (sig, SIGSUBPKT_EXPORTABLE, &buf, 1);
+ }
+
+ if (si->trust_level_set)
+ build_sig_subpkt (sig, SIGSUBPKT_TRUST,
+ si->trust_args, sizeof (si->trust_args));
+
+ if (si->trust_scope)
+ build_sig_subpkt (sig, SIGSUBPKT_REGEXP,
+ si->trust_scope, strlen (si->trust_scope));
+
+ for (i = 0; i < si->nrevocation_keys; i ++)
+ {
+ struct revocation_key *revkey = &si->revocation_key[i];
+ gpg_error_t err = keygen_add_revkey (sig, revkey);
+ if (err)
+ {
+ u32 keyid[2];
+ keyid_from_fingerprint (revkey->fpr, 20, keyid);
+ log_fatal ("adding revocation key %s: %s\n",
+ keystr (keyid), gpg_strerror (err));
+ }
+ }
+
+ /* keygen_add_revkey sets revocable=0 so be sure to do this after
+ adding the rev keys. */
+ if (si->revocable_set)
+ {
+ char buf = si->revocable;
+ build_sig_subpkt (sig, SIGSUBPKT_REVOCABLE, &buf, 1);
+ }
+
+ keygen_add_notations (sig, si->notations);
+
+ if (si->key_server_preferences)
+ build_sig_subpkt (sig, SIGSUBPKT_KS_FLAGS,
+ si->key_server_preferences,
+ si->key_server_preferences_len);
+
+ if (si->key_server)
+ build_sig_subpkt (sig, SIGSUBPKT_PREF_KS,
+ si->key_server, strlen (si->key_server));
+
+ if (si->primary_user_id_set)
+ {
+ char buf = si->primary_user_id;
+ build_sig_subpkt (sig, SIGSUBPKT_PRIMARY_UID, &buf, 1);
+ }
+
+ if (si->policy_uri)
+ build_sig_subpkt (sig, SIGSUBPKT_POLICY,
+ si->policy_uri, strlen (si->policy_uri));
+
+ if (si->key_flags)
+ build_sig_subpkt (sig, SIGSUBPKT_KEY_FLAGS,
+ si->key_flags, si->key_flags_len);
+
+ if (si->signers_user_id)
+ build_sig_subpkt (sig, SIGSUBPKT_SIGNERS_UID,
+ si->signers_user_id, strlen (si->signers_user_id));
+
+ if (si->reason_for_revocation)
+ {
+ int l = 1 + strlen (si->reason_for_revocation);
+ char buf[l];
+
+ buf[0] = si->reason_for_revocation_code;
+ memcpy (&buf[1], si->reason_for_revocation, l - 1);
+
+ build_sig_subpkt (sig, SIGSUBPKT_REVOC_REASON, buf, l);
+ }
+
+ if (si->features)
+ build_sig_subpkt (sig, SIGSUBPKT_FEATURES,
+ si->features, si->features_len);
+
+ return 0;
+}
+
+static int
+signature (const char *option, int argc, char *argv[], void *cookie)
+{
+ gpg_error_t err;
+ iobuf_t out = cookie;
+ struct siginfo si;
+ int processed;
+ PKT_public_key *pk;
+ PKT_signature *sig;
+ PACKET pkt;
+ u32 keyid_orig[2], keyid[2];
+
+ (void) option;
+
+ memset (&si, 0, sizeof (si));
+ memset (&pkt, 0, sizeof (pkt));
+
+ processed = process_options (option,
+ major_options,
+ sig_options, &si,
+ global_options, NULL,
+ argc, argv);
+
+ if (ncomponents)
+ {
+ int pkttype = components[ncomponents - 1].pkttype;
+
+ if (pkttype == PKT_PUBLIC_KEY)
+ {
+ if (! si.class)
+ /* Direct key sig. */
+ si.class = 0x1F;
+ }
+ else if (pkttype == PKT_PUBLIC_SUBKEY)
+ {
+ if (! si.sk)
+ si.sk = components[ncomponents - 1].pkt.public_key;
+ if (! si.class)
+ /* Subkey binding sig. */
+ si.class = 0x18;
+ }
+ else if (pkttype == PKT_USER_ID)
+ {
+ if (! si.uid)
+ si.uid = components[ncomponents - 1].pkt.user_id;
+ if (! si.class)
+ /* Certification of a user id and public key packet. */
+ si.class = 0x10;
+ }
+ }
+
+ pk = NULL;
+ if (! si.pk || ! si.issuer_pk)
+ /* No primary key specified. Default to the first one that we
+ find. */
+ {
+ int i;
+ for (i = 0; i < ncomponents; i ++)
+ if (components[i].pkttype == PKT_PUBLIC_KEY)
+ {
+ pk = components[i].pkt.public_key;
+ break;
+ }
+ }
+
+ if (! si.pk)
+ {
+ if (! pk)
+ log_fatal ("%s: no primary key given and no primary key available",
+ "--pk");
+ si.pk = pk;
+ }
+ if (! si.issuer_pk)
+ {
+ if (! pk)
+ log_fatal ("%s: no issuer key given and no primary key available",
+ "--issuer");
+ si.issuer_pk = pk;
+ }
+
+ if (si.class == 0x18 || si.class == 0x19 || si.class == 0x28)
+ /* Requires the primary key and a subkey. */
+ {
+ if (! si.sk)
+ log_fatal ("sig class 0x%x requires a subkey (--sk)\n", si.class);
+ }
+ else if (si.class == 0x10
+ || si.class == 0x11
+ || si.class == 0x12
+ || si.class == 0x13
+ || si.class == 0x30)
+ /* Requires the primary key and a user id. */
+ {
+ if (! si.uid)
+ log_fatal ("sig class 0x%x requires a uid (--uid)\n", si.class);
+ }
+ else if (si.class == 0x1F || si.class == 0x20)
+ /* Just requires the primary key. */
+ ;
+ else
+ log_fatal ("Unsupported signature class: 0x%x\n", si.class);
+
+ sig = xmalloc_clear (sizeof (*sig));
+
+ /* Save SI.ISSUER_PK->KEYID. */
+ keyid_copy (keyid_orig, pk_keyid (si.issuer_pk));
+ if (si.issuer_keyid[0] || si.issuer_keyid[1])
+ keyid_copy (si.issuer_pk->keyid, si.issuer_keyid);
+ else if (si.issuer_keyid_self)
+ {
+ PKT_public_key *pripk = primary_key();
+ if (! pripk)
+ log_fatal ("--issuer-keyid self given, but no primary key available.\n");
+ keyid_copy (si.issuer_pk->keyid, pk_keyid (pripk));
+ }
+
+ /* Changing the issuer's key id is fragile. Check to make sure
+ make_keysig_packet didn't recompute the keyid. */
+ keyid_copy (keyid, si.issuer_pk->keyid);
+ err = make_keysig_packet (&sig, si.pk, si.uid, si.sk, si.issuer_pk,
+ si.class, si.digest_algo,
+ si.timestamp, si.expiration,
+ mksubpkt_callback, &si, NULL);
+ log_assert (keyid_cmp (keyid, si.issuer_pk->keyid) == 0);
+ if (err)
+ log_fatal ("Generating signature: %s\n", gpg_strerror (err));
+
+ /* Restore SI.PK->KEYID. */
+ keyid_copy (si.issuer_pk->keyid, keyid_orig);
+
+ if (si.corrupt)
+ {
+ /* Set the top 32-bits to 0xBAD0DEAD. */
+ int bits = gcry_mpi_get_nbits (sig->data[0]);
+ gcry_mpi_t x = gcry_mpi_new (0);
+ gcry_mpi_add_ui (x, x, 0xBAD0DEAD);
+ gcry_mpi_lshift (x, x, bits > 32 ? bits - 32 : bits);
+ gcry_mpi_clear_highbit (sig->data[0], bits > 32 ? bits - 32 : 0);
+ gcry_mpi_add (sig->data[0], sig->data[0], x);
+ gcry_mpi_release (x);
+ }
+
+ pkt.pkttype = PKT_SIGNATURE;
+ pkt.pkt.signature = sig;
+
+ err = build_packet (out, &pkt);
+ if (err)
+ log_fatal ("serializing public key packet: %s\n", gpg_strerror (err));
+
+ debug ("Wrote signature packet:\n");
+ dump_component (&pkt);
+
+ xfree (sig);
+ release_kbnode (si.issuer_kb);
+ xfree (si.revocation_key);
+
+ return processed;
+}
+
+struct sk_esk_info
+{
+ /* The cipher used for encrypting the session key (when a session
+ key is used). */
+ int cipher;
+ /* The cipher used for encryping the SED packet. */
+ int sed_cipher;
+
+ /* S2K related data. */
+ int hash;
+ int mode;
+ int mode_set;
+ byte salt[8];
+ int salt_set;
+ int iterations;
+
+ /* If applying the S2K function to the passphrase is the session key
+ or if it is the decryption key for the session key. */
+ int s2k_is_session_key;
+ /* Generate a new, random session key. */
+ int new_session_key;
+
+ /* The unencrypted session key. */
+ int session_key_len;
+ char *session_key;
+
+ char *password;
+};
+
+static int
+sk_esk_cipher (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "integer|IDEA|3DES|CAST5|BLOWFISH|AES|AES192|AES256|CAMELLIA128|CAMELLIA192|CAMELLIA256";
+ int cipher;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (strcasecmp (argv[0], "IDEA") == 0)
+ cipher = CIPHER_ALGO_IDEA;
+ else if (strcasecmp (argv[0], "3DES") == 0)
+ cipher = CIPHER_ALGO_3DES;
+ else if (strcasecmp (argv[0], "CAST5") == 0)
+ cipher = CIPHER_ALGO_CAST5;
+ else if (strcasecmp (argv[0], "BLOWFISH") == 0)
+ cipher = CIPHER_ALGO_BLOWFISH;
+ else if (strcasecmp (argv[0], "AES") == 0)
+ cipher = CIPHER_ALGO_AES;
+ else if (strcasecmp (argv[0], "AES192") == 0)
+ cipher = CIPHER_ALGO_AES192;
+ else if (strcasecmp (argv[0], "TWOFISH") == 0)
+ cipher = CIPHER_ALGO_TWOFISH;
+ else if (strcasecmp (argv[0], "CAMELLIA128") == 0)
+ cipher = CIPHER_ALGO_CAMELLIA128;
+ else if (strcasecmp (argv[0], "CAMELLIA192") == 0)
+ cipher = CIPHER_ALGO_CAMELLIA192;
+ else if (strcasecmp (argv[0], "CAMELLIA256") == 0)
+ cipher = CIPHER_ALGO_CAMELLIA256;
+ else
+ {
+ char *tail;
+ int v;
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail) || ! valid_cipher (v))
+ log_fatal ("Invalid or unsupported value. Usage: %s %s\n",
+ option, usage);
+
+ cipher = v;
+ }
+
+ if (strcmp (option, "--cipher") == 0)
+ {
+ if (si->cipher)
+ log_fatal ("%s given multiple times.", option);
+ si->cipher = cipher;
+ }
+ else if (strcmp (option, "--sed-cipher") == 0)
+ {
+ if (si->sed_cipher)
+ log_fatal ("%s given multiple times.", option);
+ si->sed_cipher = cipher;
+ }
+
+ return 1;
+}
+
+static int
+sk_esk_mode (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "integer|simple|salted|iterated";
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (si->mode)
+ log_fatal ("%s given multiple times.", option);
+
+ if (strcasecmp (argv[0], "simple") == 0)
+ si->mode = 0;
+ else if (strcasecmp (argv[0], "salted") == 0)
+ si->mode = 1;
+ else if (strcasecmp (argv[0], "iterated") == 0)
+ si->mode = 3;
+ else
+ {
+ char *tail;
+ int v;
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail) || ! (v == 0 || v == 1 || v == 3))
+ log_fatal ("Invalid or unsupported value. Usage: %s %s\n",
+ option, usage);
+
+ si->mode = v;
+ }
+
+ si->mode_set = 1;
+
+ return 1;
+}
+
+static int
+sk_esk_hash_algorithm (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "integer|MD5|SHA1|RMD160|SHA256|SHA384|SHA512|SHA224";
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (si->hash)
+ log_fatal ("%s given multiple times.", option);
+
+ if (strcasecmp (argv[0], "MD5") == 0)
+ si->hash = DIGEST_ALGO_MD5;
+ else if (strcasecmp (argv[0], "SHA1") == 0)
+ si->hash = DIGEST_ALGO_SHA1;
+ else if (strcasecmp (argv[0], "RMD160") == 0)
+ si->hash = DIGEST_ALGO_RMD160;
+ else if (strcasecmp (argv[0], "SHA256") == 0)
+ si->hash = DIGEST_ALGO_SHA256;
+ else if (strcasecmp (argv[0], "SHA384") == 0)
+ si->hash = DIGEST_ALGO_SHA384;
+ else if (strcasecmp (argv[0], "SHA512") == 0)
+ si->hash = DIGEST_ALGO_SHA512;
+ else if (strcasecmp (argv[0], "SHA224") == 0)
+ si->hash = DIGEST_ALGO_SHA224;
+ else
+ {
+ char *tail;
+ int v;
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail)
+ || ! (v == DIGEST_ALGO_MD5
+ || v == DIGEST_ALGO_SHA1
+ || v == DIGEST_ALGO_RMD160
+ || v == DIGEST_ALGO_SHA256
+ || v == DIGEST_ALGO_SHA384
+ || v == DIGEST_ALGO_SHA512
+ || v == DIGEST_ALGO_SHA224))
+ log_fatal ("Invalid or unsupported value. Usage: %s %s\n",
+ option, usage);
+
+ si->hash = v;
+ }
+
+ return 1;
+}
+
+static int
+sk_esk_salt (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "16-HEX-CHARACTERS";
+ char *p = argv[0];
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (si->salt_set)
+ log_fatal ("%s given multiple times.", option);
+
+ if (p[0] == '0' && p[1] == 'x')
+ p += 2;
+
+ if (strlen (p) != 16)
+ log_fatal ("%s: Salt must be exactly 16 hexadecimal characters (have: %zd)\n",
+ option, strlen (p));
+
+ if (hex2bin (p, si->salt, sizeof (si->salt)) == -1)
+ log_fatal ("%s: Salt must only contain hexadecimal characters\n",
+ option);
+
+ si->salt_set = 1;
+
+ return 1;
+}
+
+static int
+sk_esk_iterations (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "ITERATION-COUNT";
+ char *tail;
+ int v;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail) || v < 0)
+ log_fatal ("%s: Non-negative integer expected.\n", option);
+
+ si->iterations = v;
+
+ return 1;
+}
+
+static int
+sk_esk_session_key (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "HEX-CHARACTERS|auto|none";
+ char *p = argv[0];
+ struct session_key sk;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (si->session_key || si->s2k_is_session_key
+ || si->new_session_key)
+ log_fatal ("%s given multiple times.", option);
+
+ if (strcasecmp (p, "none") == 0)
+ {
+ si->s2k_is_session_key = 1;
+ return 1;
+ }
+ if (strcasecmp (p, "new") == 0)
+ {
+ si->new_session_key = 1;
+ return 1;
+ }
+ if (strcasecmp (p, "auto") == 0)
+ return 1;
+
+ sk = parse_session_key (option, p, 0);
+
+ if (si->session_key)
+ log_fatal ("%s given multiple times.", option);
+
+ if (sk.algo)
+ si->sed_cipher = sk.algo;
+
+ si->session_key_len = sk.keylen;
+ si->session_key = sk.key;
+
+ return 1;
+}
+
+static int
+sk_esk_password (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct sk_esk_info *si = cookie;
+ char *usage = "PASSWORD";
+
+ if (argc == 0)
+ log_fatal ("Usage: --sk-esk %s\n", usage);
+
+ if (si->password)
+ log_fatal ("%s given multiple times.", option);
+
+ si->password = xstrdup (argv[0]);
+
+ return 1;
+}
+
+static struct option sk_esk_options[] = {
+ { "--cipher", sk_esk_cipher,
+ "The encryption algorithm for encrypting the session key. "
+ "One of IDEA, 3DES, CAST5, BLOWFISH, AES (default), AES192, "
+ "AES256, TWOFISH, CAMELLIA128, CAMELLIA192, or CAMELLIA256." },
+ { "--sed-cipher", sk_esk_cipher,
+ "The encryption algorithm for encrypting the SED packet. "
+ "One of IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, "
+ "AES256 (default), TWOFISH, CAMELLIA128, CAMELLIA192, or CAMELLIA256." },
+ { "--mode", sk_esk_mode,
+ "The S2K mode. Either one of the strings \"simple\", \"salted\" "
+ "or \"iterated\" or an integer." },
+ { "--hash", sk_esk_hash_algorithm,
+ "The hash algorithm to used to derive the key. One of "
+ "MD5, SHA1 (default), RMD160, SHA256, SHA384, SHA512, or SHA224." },
+ { "--salt", sk_esk_salt,
+ "The S2K salt encoded as 16 hexadecimal characters. One needed "
+ "if the S2K function is in salted or iterated mode." },
+ { "--iterations", sk_esk_iterations,
+ "The iteration count. If not provided, a reasonable value is chosen. "
+ "Note: due to the encoding scheme, not every value is valid. For "
+ "convenience, the provided value will be rounded appropriately. "
+ "Only needed if the S2K function is in iterated mode." },
+ { "--session-key", sk_esk_session_key,
+ "The session key to be encrypted by the S2K function as a hexadecimal "
+ "string. If this is \"new\", then a new session key is generated."
+ "If this is \"auto\", then either the last session key is "
+ "used, if the was none, one is generated. If this is \"none\", then "
+ "the session key is the result of applying the S2K algorithms to the "
+ "password. The session key may be prefaced with an integer and a colon "
+ "to indicate the cipher to use for the SED packet (making --sed-cipher "
+ "unnecessary and allowing the direct use of the result of "
+ "\"gpg2 --show-session-key\")." },
+ { "", sk_esk_password, "The password." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --sk-esk foobar --encrypted \\\n"
+ " --literal --value foo | gpg2 --list-packets" }
+};
+
+static int
+sk_esk (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ gpg_error_t err;
+ int processed;
+ struct sk_esk_info si;
+ DEK sesdek;
+ DEK s2kdek;
+ PKT_symkey_enc *ske;
+ PACKET pkt;
+
+ memset (&si, 0, sizeof (si));
+
+ processed = process_options (option,
+ major_options,
+ sk_esk_options, &si,
+ global_options, NULL,
+ argc, argv);
+
+ if (! si.password)
+ log_fatal ("%s: missing password. Usage: %s PASSWORD", option, option);
+
+ /* Fill in defaults, if appropriate. */
+ if (! si.cipher)
+ si.cipher = CIPHER_ALGO_AES;
+
+ if (! si.sed_cipher)
+ si.sed_cipher = CIPHER_ALGO_AES256;
+
+ if (! si.hash)
+ si.hash = DIGEST_ALGO_SHA1;
+
+ if (! si.mode_set)
+ /* Salted and iterated. */
+ si.mode = 3;
+
+ if (si.mode != 0 && ! si.salt_set)
+ /* Generate a salt. */
+ gcry_randomize (si.salt, 8, GCRY_STRONG_RANDOM);
+
+ if (si.mode == 0)
+ {
+ if (si.iterations)
+ log_info ("%s: --iterations provided, but not used for mode=0\n",
+ option);
+ si.iterations = 0;
+ }
+ else if (! si.iterations)
+ si.iterations = 10000;
+
+ memset (&sesdek, 0, sizeof (sesdek));
+ /* The session key is used to encrypt the SED packet. */
+ sesdek.algo = si.sed_cipher;
+ if (si.session_key)
+ /* Copy the unencrypted session key into SESDEK. */
+ {
+ sesdek.keylen = openpgp_cipher_get_algo_keylen (sesdek.algo);
+ if (sesdek.keylen != si.session_key_len)
+ log_fatal ("%s: Cipher algorithm requires a %d byte session key, but provided session key is %d bytes.",
+ option, sesdek.keylen, si.session_key_len);
+
+ log_assert (sesdek.keylen <= sizeof (sesdek.key));
+ memcpy (sesdek.key, si.session_key, sesdek.keylen);
+ }
+ else if (! si.s2k_is_session_key || si.new_session_key)
+ /* We need a session key, but one wasn't provided. Generate it. */
+ make_session_key (&sesdek);
+
+ /* The encrypted session key needs 1 + SESDEK.KEYLEN bytes of
+ space. */
+ ske = xmalloc_clear (sizeof (*ske) + sesdek.keylen);
+
+ ske->version = 4;
+ ske->cipher_algo = si.cipher;
+
+ ske->s2k.mode = si.mode;
+ ske->s2k.hash_algo = si.hash;
+ log_assert (sizeof (si.salt) == sizeof (ske->s2k.salt));
+ memcpy (ske->s2k.salt, si.salt, sizeof (ske->s2k.salt));
+ if (! si.s2k_is_session_key)
+ /* 0 means get the default. */
+ ske->s2k.count = encode_s2k_iterations (si.iterations);
+
+
+ /* Derive the symmetric key that is either the session key or the
+ key used to encrypt the session key. */
+ memset (&s2kdek, 0, sizeof (s2kdek));
+
+ s2kdek.algo = si.cipher;
+ s2kdek.keylen = openpgp_cipher_get_algo_keylen (s2kdek.algo);
+
+ err = gcry_kdf_derive (si.password, strlen (si.password),
+ ske->s2k.mode == 3 ? GCRY_KDF_ITERSALTED_S2K
+ : ske->s2k.mode == 1 ? GCRY_KDF_SALTED_S2K
+ : GCRY_KDF_SIMPLE_S2K,
+ ske->s2k.hash_algo, ske->s2k.salt, 8,
+ S2K_DECODE_COUNT (ske->s2k.count),
+ /* The size of the desired key and its
+ buffer. */
+ s2kdek.keylen, s2kdek.key);
+ if (err)
+ log_fatal ("gcry_kdf_derive failed: %s", gpg_strerror (err));
+
+
+ if (si.s2k_is_session_key)
+ {
+ ske->seskeylen = 0;
+ session_key = s2kdek;
+ }
+ else
+ /* Encrypt the session key using the s2k specifier. */
+ {
+ DEK *sesdekp = &sesdek;
+
+ /* Now encrypt the session key (or rather, the algorithm used to
+ encrypt the SED plus the session key) using ENCKEY. */
+ ske->seskeylen = 1 + sesdek.keylen;
+ encrypt_seskey (&s2kdek, &sesdekp, ske->seskey);
+
+ /* Save the session key for later. */
+ session_key = sesdek;
+ }
+
+ pkt.pkttype = PKT_SYMKEY_ENC;
+ pkt.pkt.symkey_enc = ske;
+
+ err = build_packet (out, &pkt);
+ if (err)
+ log_fatal ("Serializing sym-key encrypted packet: %s\n",
+ gpg_strerror (err));
+
+ debug ("Wrote sym-key encrypted packet:\n");
+ dump_component (&pkt);
+
+ xfree (si.session_key);
+ xfree (si.password);
+ xfree (ske);
+
+ return processed;
+}
+
+struct pk_esk_info
+{
+ int session_key_set;
+
+ int new_session_key;
+
+ int sed_cipher;
+ int session_key_len;
+ char *session_key;
+
+ int throw_keyid;
+
+ char *keyid;
+};
+
+static int
+pk_esk_session_key (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct pk_esk_info *pi = cookie;
+ char *usage = "HEX-CHARACTERS|auto|none";
+ char *p = argv[0];
+ struct session_key sk;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (pi->session_key_set)
+ log_fatal ("%s given multiple times.", option);
+ pi->session_key_set = 1;
+
+ if (strcasecmp (p, "new") == 0)
+ {
+ pi->new_session_key = 1;
+ return 1;
+ }
+
+ if (strcasecmp (p, "auto") == 0)
+ return 1;
+
+ sk = parse_session_key (option, p, 0);
+
+ if (pi->session_key)
+ log_fatal ("%s given multiple times.", option);
+
+ if (sk.algo)
+ pi->sed_cipher = sk.algo;
+
+ pi->session_key_len = sk.keylen;
+ pi->session_key = sk.key;
+
+ return 1;
+}
+
+static int
+pk_esk_throw_keyid (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct pk_esk_info *pi = cookie;
+
+ (void) option;
+ (void) argc;
+ (void) argv;
+
+ pi->throw_keyid = 1;
+
+ return 0;
+}
+
+static int
+pk_esk_keyid (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct pk_esk_info *pi = cookie;
+ char *usage = "KEYID";
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (pi->keyid)
+ log_fatal ("Multiple key ids given, but only one is allowed.");
+
+ pi->keyid = xstrdup (argv[0]);
+
+ return 1;
+}
+
+static struct option pk_esk_options[] = {
+ { "--session-key", pk_esk_session_key,
+ "The session key to be encrypted by the S2K function as a hexadecimal "
+ "string. If this is not given or is \"auto\", then the current "
+ "session key is used. If there is no session key or this is \"new\", "
+ "then a new session key is generated. The session key may be "
+ "prefaced with an integer and a colon to indicate the cipher to use "
+ "for the SED packet (making --sed-cipher unnecessary and allowing the "
+ "direct use of the result of \"gpg2 --show-session-key\")." },
+ { "--throw-keyid", pk_esk_throw_keyid,
+ "Throw the keyid." },
+ { "", pk_esk_keyid, "The key id." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --pk-esk $KEYID --encrypted --literal --value foo \\\n"
+ " | gpg2 --list-packets"}
+};
+
+static int
+pk_esk (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ gpg_error_t err;
+ int processed;
+ struct pk_esk_info pi;
+ PKT_public_key pk;
+
+ memset (&pi, 0, sizeof (pi));
+
+ processed = process_options (option,
+ major_options,
+ pk_esk_options, &pi,
+ global_options, NULL,
+ argc, argv);
+
+ if (! pi.keyid)
+ log_fatal ("%s: missing keyid. Usage: %s KEYID", option, option);
+
+ memset (&pk, 0, sizeof (pk));
+ pk.req_usage = PUBKEY_USAGE_ENC;
+ err = get_pubkey_byname (NULL, NULL, &pk, pi.keyid, NULL, NULL, 1, 1);
+ if (err)
+ log_fatal ("%s: looking up key %s: %s\n",
+ option, pi.keyid, gpg_strerror (err));
+
+ if (pi.sed_cipher)
+ /* Have a session key. */
+ {
+ session_key.algo = pi.sed_cipher;
+ session_key.keylen = pi.session_key_len;
+ log_assert (session_key.keylen <= sizeof (session_key.key));
+ memcpy (session_key.key, pi.session_key, session_key.keylen);
+ }
+
+ if (pi.new_session_key || ! session_key.algo)
+ {
+ if (! pi.new_session_key)
+ /* Default to AES256. */
+ session_key.algo = CIPHER_ALGO_AES256;
+ make_session_key (&session_key);
+ }
+
+ err = write_pubkey_enc (&pk, pi.throw_keyid, &session_key, out);
+ if (err)
+ log_fatal ("%s: writing pk_esk packet for %s: %s\n",
+ option, pi.keyid, gpg_strerror (err));
+
+ debug ("Wrote pk_esk packet for %s\n", pi.keyid);
+
+ xfree (pi.keyid);
+ xfree (pi.session_key);
+
+ return processed;
+}
+
+struct encinfo
+{
+ int saw_session_key;
+};
+
+static int
+encrypted_session_key (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct encinfo *ei = cookie;
+ char *usage = "HEX-CHARACTERS|auto";
+ char *p = argv[0];
+ struct session_key sk;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s %s\n", option, usage);
+
+ if (ei->saw_session_key)
+ log_fatal ("%s given multiple times.", option);
+ ei->saw_session_key = 1;
+
+ if (strcasecmp (p, "auto") == 0)
+ return 1;
+
+ sk = parse_session_key (option, p, 1);
+
+ session_key.algo = sk.algo;
+ log_assert (sk.keylen <= sizeof (session_key.key));
+ memcpy (session_key.key, sk.key, sk.keylen);
+ xfree (sk.key);
+
+ return 1;
+}
+
+static struct option encrypted_options[] = {
+ { "--session-key", encrypted_session_key,
+ "The session key to be encrypted by the S2K function as a hexadecimal "
+ "string. If this is not given or is \"auto\", then the last session key "
+ "is used. If there was none, then an error is raised. The session key "
+ "must be prefaced with an integer and a colon to indicate the cipher "
+ "to use (this is format used by \"gpg2 --show-session-key\")." },
+ { NULL, NULL,
+ "After creating the packet, this command clears the current "
+ "session key.\n\n"
+ "Example: nested encryption packets:\n\n"
+ " $ gpgcompose --sk-esk foo --encrypted-mdc \\\n"
+ " --sk-esk bar --encrypted-mdc \\\n"
+ " --literal --value 123 --encrypted-pop --encrypted-pop | gpg2 -d" }
+};
+
+static int
+encrypted (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ int processed;
+ struct encinfo ei;
+ PKT_encrypted e;
+ cipher_filter_context_t *cfx;
+
+ memset (&ei, 0, sizeof (ei));
+
+ processed = process_options (option,
+ major_options,
+ encrypted_options, &ei,
+ global_options, NULL,
+ argc, argv);
+
+ if (! session_key.algo)
+ log_fatal ("%s: no session key configured.\n", option);
+
+ memset (&e, 0, sizeof (e));
+ /* We only need to set E->LEN, E->EXTRALEN (if E->LEN is not
+ 0), and E->NEW_CTB. */
+ e.len = 0;
+ e.new_ctb = 1;
+
+ /* Register the cipher filter. */
+
+ cfx = xmalloc_clear (sizeof (*cfx));
+
+ /* Copy the session key. */
+ cfx->dek = xmalloc (sizeof (*cfx->dek));
+ *cfx->dek = session_key;
+
+ if (do_debug)
+ {
+ char buf[2 * session_key.keylen + 1];
+ debug ("session key: algo: %d; keylen: %d; key: %s\n",
+ session_key.algo, session_key.keylen,
+ bin2hex (session_key.key, session_key.keylen, buf));
+ }
+
+ if (strcmp (option, "--encrypted-mdc") == 0)
+ cfx->dek->use_mdc = 1;
+ else if (strcmp (option, "--encrypted") == 0)
+ cfx->dek->use_mdc = 0;
+ else
+ log_fatal ("%s: option not handled by this function!\n", option);
+
+ cfx->datalen = 0;
+
+ filter_push (out, cipher_filter, cfx, PKT_ENCRYPTED, cfx->datalen == 0);
+
+ debug ("Wrote encrypted packet:\n");
+
+ /* Clear the current session key. */
+ memset (&session_key, 0, sizeof (session_key));
+
+ return processed;
+}
+
+static int
+encrypted_pop (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+
+ (void) argc;
+ (void) argv;
+
+ if (strcmp (option, "--encrypted-pop") == 0)
+ filter_pop (out, PKT_ENCRYPTED);
+ else if (strcmp (option, "--encrypted-mdc-pop") == 0)
+ filter_pop (out, PKT_ENCRYPTED_MDC);
+ else
+ log_fatal ("%s: option not handled by this function!\n", option);
+
+ debug ("Popped encryption container.\n");
+
+ return 0;
+}
+
+struct data
+{
+ int file;
+ union
+ {
+ char *data;
+ char *filename;
+ };
+ struct data *next;
+};
+
+/* This must be the first member of the struct to be able to use
+ add_value! */
+struct datahead
+{
+ struct data *head;
+ struct data **last_next;
+};
+
+static int
+add_value (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct datahead *dh = cookie;
+ struct data *d = xmalloc_clear (sizeof (struct data));
+
+ d->file = strcmp ("--file", option) == 0;
+ if (! d->file)
+ log_assert (strcmp ("--value", option) == 0);
+
+ if (argc == 0)
+ {
+ if (d->file)
+ log_fatal ("Usage: %s FILENAME\n", option);
+ else
+ log_fatal ("Usage: %s STRING\n", option);
+ }
+
+ if (! dh->last_next)
+ /* First time through. Initialize DH->LAST_NEXT. */
+ {
+ log_assert (! dh->head);
+ dh->last_next = &dh->head;
+ }
+
+ if (d->file)
+ d->filename = argv[0];
+ else
+ d->data = argv[0];
+
+ /* Append it. */
+ *dh->last_next = d;
+ dh->last_next = &d->next;
+
+ return 1;
+}
+
+struct litinfo
+{
+ /* This must be the first element for add_value to work! */
+ struct datahead data;
+
+ int timestamp_set;
+ u32 timestamp;
+ char mode;
+ int partial_body_length_encoding;
+ char *name;
+};
+
+static int
+literal_timestamp (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct litinfo *li = cookie;
+
+ char *tail = NULL;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s TIMESTAMP\n", option);
+
+ errno = 0;
+ li->timestamp = parse_timestamp (argv[0], &tail);
+ if (errno || (tail && *tail))
+ log_fatal ("Invalid value passed to %s (%s)\n", option, argv[0]);
+ li->timestamp_set = 1;
+
+ return 1;
+}
+
+static int
+literal_mode (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct litinfo *li = cookie;
+
+ if (argc == 0
+ || ! (strcmp (argv[0], "b") == 0
+ || strcmp (argv[0], "t") == 0
+ || strcmp (argv[0], "u") == 0))
+ log_fatal ("Usage: %s [btu]\n", option);
+
+ li->mode = argv[0][0];
+
+ return 1;
+}
+
+static int
+literal_partial_body_length (const char *option, int argc, char *argv[],
+ void *cookie)
+{
+ struct litinfo *li = cookie;
+ char *tail;
+ int v;
+ int range[2] = {0, 1};
+
+ if (argc <= 1)
+ log_fatal ("Usage: %s [0|1]\n", option);
+
+ errno = 0;
+ v = strtol (argv[0], &tail, 0);
+ if (errno || (tail && *tail) || !(range[0] <= v && v <= range[1]))
+ log_fatal ("Invalid value passed to %s (%s). Expected %d-%d\n",
+ option, argv[0], range[0], range[1]);
+
+ li->partial_body_length_encoding = v;
+
+ return 1;
+}
+
+static int
+literal_name (const char *option, int argc, char *argv[], void *cookie)
+{
+ struct litinfo *li = cookie;
+
+ if (argc <= 1)
+ log_fatal ("Usage: %s NAME\n", option);
+
+ if (strlen (argv[0]) > 255)
+ log_fatal ("%s: name is too long (%zd > 255 characters).\n",
+ option, strlen (argv[0]));
+
+ li->name = argv[0];
+
+ return 1;
+}
+
+static struct option literal_options[] = {
+ { "--value", add_value,
+ "A string to store in the literal packet." },
+ { "--file", add_value,
+ "A file to copy into the literal packet." },
+ { "--timestamp", literal_timestamp,
+ "The literal packet's time stamp. This defaults to the current time." },
+ { "--mode", literal_mode,
+ "The content's mode (normally 'b' (default), 't' or 'u')." },
+ { "--partial-body-length", literal_partial_body_length,
+ "Force partial body length encoding." },
+ { "--name", literal_name,
+ "The literal's name." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --literal --value foobar | gpg2 -d"}
+};
+
+static int
+literal (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ gpg_error_t err;
+ int processed;
+ struct litinfo li;
+ PKT_plaintext *pt;
+ PACKET pkt;
+ struct data *data;
+
+ memset (&li, 0, sizeof (li));
+
+ processed = process_options (option,
+ major_options,
+ literal_options, &li,
+ global_options, NULL,
+ argc, argv);
+
+ if (! li.data.head)
+ log_fatal ("%s: no data provided (use --value or --file)", option);
+
+ pt = xmalloc_clear (sizeof (*pt) + (li.name ? strlen (li.name) : 0));
+ pt->new_ctb = 1;
+
+ if (li.timestamp_set)
+ pt->timestamp = li.timestamp;
+ else
+ /* Default to the current time. */
+ pt->timestamp = make_timestamp ();
+
+ pt->mode = li.mode;
+ if (! pt->mode)
+ /* Default to binary. */
+ pt->mode = 'b';
+
+ if (li.name)
+ {
+ strcpy (pt->name, li.name);
+ pt->namelen = strlen (pt->name);
+ }
+
+ pkt.pkttype = PKT_PLAINTEXT;
+ pkt.pkt.plaintext = pt;
+
+ if (! li.partial_body_length_encoding)
+ /* Compute the amount of data. */
+ {
+ pt->len = 0;
+ for (data = li.data.head; data; data = data->next)
+ {
+ if (data->file)
+ {
+ iobuf_t in;
+ int overflow;
+ off_t off;
+
+ in = iobuf_open (data->filename);
+ if (! in)
+ /* An error opening the file. We do error handling
+ below so just break here. */
+ {
+ pt->len = 0;
+ break;
+ }
+
+ off = iobuf_get_filelength (in, &overflow);
+ iobuf_close (in);
+
+ if (overflow || off == 0)
+ /* Length is unknown or there was an error
+ (unfortunately, iobuf_get_filelength doesn't
+ distinguish between 0 length files and an error!).
+ Fall back to partial body mode. */
+ {
+ pt->len = 0;
+ break;
+ }
+
+ pt->len += off;
+ }
+ else
+ pt->len += strlen (data->data);
+ }
+ }
+
+ err = build_packet (out, &pkt);
+ if (err)
+ log_fatal ("Serializing literal packet: %s\n", gpg_strerror (err));
+
+ /* Write out the data. */
+ for (data = li.data.head; data; data = data->next)
+ {
+ if (data->file)
+ {
+ iobuf_t in;
+ errno = 0;
+ in = iobuf_open (data->filename);
+ if (! in)
+ log_fatal ("Opening '%s': %s\n",
+ data->filename,
+ errno ? strerror (errno): "unknown error");
+
+ iobuf_copy (out, in);
+ if (iobuf_error (in))
+ log_fatal ("Reading from %s: %s\n",
+ data->filename,
+ gpg_strerror (iobuf_error (in)));
+ if (iobuf_error (out))
+ log_fatal ("Writing literal data from %s: %s\n",
+ data->filename,
+ gpg_strerror (iobuf_error (out)));
+
+ iobuf_close (in);
+ }
+ else
+ {
+ err = iobuf_write (out, data->data, strlen (data->data));
+ if (err)
+ log_fatal ("Writing literal data: %s\n", gpg_strerror (err));
+ }
+ }
+
+ if (! pt->len)
+ {
+ /* Disable partial body length mode. */
+ log_assert (pt->new_ctb == 1);
+ iobuf_set_partial_body_length_mode (out, 0);
+ }
+
+ debug ("Wrote literal packet:\n");
+ dump_component (&pkt);
+
+ while (li.data.head)
+ {
+ data = li.data.head->next;
+ xfree (li.data.head);
+ li.data.head = data;
+ }
+ xfree (pt);
+
+ return processed;
+}
+
+static int
+copy_file (const char *option, int argc, char *argv[], void *cookie)
+{
+ char **filep = cookie;
+
+ if (argc == 0)
+ log_fatal ("Usage: %s FILENAME\n", option);
+
+ *filep = argv[0];
+
+ return 1;
+}
+
+static struct option copy_options[] = {
+ { "", copy_file, "Copy the specified file to stdout." },
+ { NULL, NULL,
+ "Example:\n\n"
+ " $ gpgcompose --copy /etc/hostname\n\n"
+ "This is particularly useful when combined with gpgsplit." }
+};
+
+static int
+copy (const char *option, int argc, char *argv[], void *cookie)
+{
+ iobuf_t out = cookie;
+ char *file = NULL;
+ iobuf_t in;
+
+ int processed;
+
+ processed = process_options (option,
+ major_options,
+ copy_options, &file,
+ global_options, NULL,
+ argc, argv);
+ if (! file)
+ log_fatal ("Usage: %s FILE\n", option);
+
+ errno = 0;
+ in = iobuf_open (file);
+ if (! in)
+ log_fatal ("Error opening %s: %s.\n",
+ file, errno ? strerror (errno): "unknown error");
+
+ iobuf_copy (out, in);
+ if (iobuf_error (out))
+ log_fatal ("Copying data to destination: %s\n",
+ gpg_strerror (iobuf_error (out)));
+ if (iobuf_error (in))
+ log_fatal ("Reading data from %s: %s\n",
+ argv[0], gpg_strerror (iobuf_error (in)));
+
+ iobuf_close (in);
+
+ return processed;
+}
+
+int
+main (int argc, char *argv[])
+{
+ const char *filename = "-";
+ iobuf_t out;
+ int preprocessed = 1;
+ int processed;
+ ctrl_t ctrl;
+
+ opt.homedir = default_homedir ();
+ if (! opt.homedir)
+ opt.homedir = "";
+
+ opt.ignore_time_conflict = 1;
+ /* Allow notations in the IETF space, for instance. */
+ opt.expert = 1;
+
+ ctrl = xcalloc (1, sizeof *ctrl);
+
+ keydb_add_resource ("pubring" EXTSEP_S GPGEXT_GPG,
+ KEYDB_RESOURCE_FLAG_DEFAULT);
+
+ if (argc == 1)
+ /* Nothing to do. */
+ return 0;
+
+ if (strcmp (argv[1], "--output") == 0
+ || strcmp (argv[1], "-o") == 0)
+ {
+ filename = argv[2];
+ log_info ("Writing to %s\n", filename);
+ preprocessed += 2;
+ }
+
+ out = iobuf_create (filename, 0);
+ if (! out)
+ log_fatal ("Failed to open stdout for writing\n");
+
+ processed = process_options (NULL, NULL,
+ major_options, out,
+ global_options, NULL,
+ argc - preprocessed, &argv[preprocessed]);
+ if (processed != argc - preprocessed)
+ log_fatal ("Didn't process %d options.\n", argc - preprocessed - processed);
+
+ iobuf_close (out);
+
+ return 0;
+}
+
+/* Stubs duplicated from gpg.c. */
+
+int g10_errors_seen = 0;
+
+/* Note: This function is used by signal handlers!. */
+static void
+emergency_cleanup (void)
+{
+ gcry_control (GCRYCTL_TERM_SECMEM );
+}
+
+void
+g10_exit( int rc )
+{
+ gcry_control (GCRYCTL_UPDATE_RANDOM_SEED_FILE);
+
+ emergency_cleanup ();
+
+ rc = rc? rc : log_get_errorcount(0)? 2 : g10_errors_seen? 1 : 0;
+ exit (rc);
+}
+
+void
+keyedit_menu (ctrl_t ctrl, const char *username, strlist_t locusr,
+ strlist_t commands, int quiet, int seckey_check)
+{
+ (void) ctrl;
+ (void) username;
+ (void) locusr;
+ (void) commands;
+ (void) quiet;
+ (void) seckey_check;
+}
+
+void
+show_basic_key_info (KBNODE keyblock)
+{
+ (void) keyblock;
+}
diff --git a/g10/main.h b/g10/main.h
index fa58205..3687977 100644
--- a/g10/main.h
+++ b/g10/main.h
@@ -221,6 +221,7 @@ void display_online_help( const char *keyword );
/*-- encode.c --*/
int setup_symkey (STRING2KEY **symkey_s2k,DEK **symkey_dek);
+void encrypt_seskey (DEK *dek, DEK **seskey, byte *enckey);
int use_mdc (pk_list_t pk_list,int algo);
int encrypt_symmetric (const char *filename );
int encrypt_store (const char *filename );
diff --git a/g10/packet.h b/g10/packet.h
index 21c06d7..c1aaedb 100644
--- a/g10/packet.h
+++ b/g10/packet.h
@@ -29,6 +29,7 @@
#include "filter.h"
#include "../common/openpgpdefs.h"
#include "../common/userids.h"
+#include "util.h"
#define DEBUG_PARSE_PACKET 1
--
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