Sat Feb 23 21:11:57 2013 UTC ()
Initial import of netpgpverify-20120928 into the Packages Collection
netpgpverify is a standalone program to verify a PGP signature
on a file or document. Both RSA and DSA signatures are supported,
as are binary and document signatures.
netpgpverify is compliant with RFC 4880.
netpgpverify is a small frontend for libnetpgpverify, to allow PGP digital
signatures to be verified from the command line.
Status:
Vendor Tag: TNF
Release Tags: pkgsrc-base
(agc)
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/Makefile
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/PLIST
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/DESCR
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/distinfo
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/Makefile
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/array.h
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/Makefile
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/Makefile.am
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/Makefile.in
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/main.c
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/netpgpverify.1
diff -r0 -r1.1.1.1 pkgsrc/security/netpgpverify/files/src/netpgpverify/verify.c
# $NetBSD: Makefile,v 1.1.1.1 2013/02/23 21:11:56 agc Exp $
DISTNAME= netpgpverify-20120928
CATEGORIES= security
MASTER_SITES= # empty
DISTFILES= # empty
MAINTAINER= agc@NetBSD.org
HOMEPAGE= http://www.NetBSD.org/
COMMENT= PGP signature verification library
LICENSE= modified-bsd
USE_LIBTOOL= yes
AUTO_MKDIRS= yes
do-extract:
@${CP} -R ${FILESDIR} ${WRKSRC}
do-install:
libtool --mode=install ${INSTALL_PROGRAM} ${WRKSRC}/netpgpverify ${DESTDIR}${PREFIX}/bin
${INSTALL_DATA} ${WRKSRC}/src/netpgpverify/netpgpverify.1 ${DESTDIR}${PREFIX}/${PKGMANDIR}/man1
.include "../../archivers/bzip2/buildlink3.mk"
.include "../../devel/zlib/buildlink3.mk"
.include "../../security/libnetpgpverify/buildlink3.mk"
.include "../../mk/bsd.pkg.mk"
@comment $NetBSD: PLIST,v 1.1.1.1 2013/02/23 21:11:56 agc Exp $
bin/netpgpverify
man/man1/netpgpverify.1
netpgpverify is a standalone program to verify a PGP signature
on a file or document. Both RSA and DSA signatures are supported,
as are binary and document signatures.
netpgpverify is compliant with RFC 4880.
$NetBSD: distinfo,v 1.1.1.1 2013/02/23 21:11:56 agc Exp $
# $NetBSD: Makefile,v 1.1.1.1 2013/02/23 21:11:56 agc Exp $
SRCS=src/netpgpverify/main.c
OBJS=main.o
LIBS=${PREFIX}/lib/libnetpgpverify.la -lz -lbz2
CFLAGS+=-I${PREFIX}/include
all: netpgpverify
main.o: ${SRCS}
libtool --mode=compile ${CC} ${CFLAGS} -c ${SRCS} -o ${OBJS}
netpgpverify: ${OBJS}
libtool --mode=link ${CC} ${LDFLAGS} ${OBJS} ${LIBS} -o netpgpverify
/*-
* Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
* All rights reserved.
*
* 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, this list of conditions and the following disclaimer.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 ARRAY_H_
#define ARRAY_H_ 20120921
#ifndef PGPV_ARRAY
/* creates 2 unsigned vars called "name"c and "name"size in current scope */
/* also creates an array called "name"s in current scope */
#define PGPV_ARRAY(type, name) \
unsigned name##c; unsigned name##vsize; type *name##s
#endif
/* if this isn't part of a struct, need to specifically initialise things */
#define ARRAY_INIT(name) do { \
name##c = name##vsize = 0; \
name##s = NULL; \
} while(/*CONSTCOND*/0)
/* check the array is big enough - if not, expand it by explicit amount */
/* this is clunky, but there are bugs a-lurking */
#define ARRAY_EXPAND_SIZED(name, mult, add) do { \
if (name##c == name##vsize) { \
void *_v; \
char *_cv = NULL; \
unsigned _ents; \
_ents = (name##vsize * (mult)) + (add); \
_cv = _v = realloc(name##s, _ents * sizeof(*name##s)); \
if (_v == NULL) { \
fprintf(stderr, "ARRAY_EXPAND - bad realloc\n"); \
} else { \
memset(&_cv[name##vsize * sizeof(*name##s)], \
0x0, (_ents - name##vsize) * sizeof(*name##s)); \
name##s = _v; \
name##vsize = _ents; \
} \
} \
} while(/*CONSTCOND*/0)
/* check the array is big enough - if not, expand it (size * 2) + 10 */
#define ARRAY_EXPAND(name) ARRAY_EXPAND_SIZED(name, 2, 10)
#define ARRAY_ELEMENT(name, num) name##s[num]
#define ARRAY_LAST(name) name##s[name##c - 1]
#define ARRAY_COUNT(name) name##c
#define ARRAY_SIZE(name) name##vsize
#define ARRAY_ARRAY(name) name##s
#define ARRAY_APPEND(name, newel) do { \
ARRAY_EXPAND(name); \
ARRAY_COUNT(name) += 1; \
ARRAY_LAST(name) = newel; \
} while(/*CONSTCOND*/0)
#define ARRAY_DELETE(name, num) do { \
ARRAY_COUNT(name) -= 1; \
memmove(&ARRAY_ELEMENT(name, num), &ARRAY_ELEMENT(name, num + 1), \
(ARRAY_COUNT(name) - (num)) * sizeof(ARRAY_ELEMENT(name, 0))); \
} while(/*CONSTCOND*/0)
#endif
# Makefile.in generated by automake 1.10.1 from Makefile.am.
# src/netpgpverify/Makefile. Generated from Makefile.in by configure.
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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PACKAGE = netpgp
PACKAGE_BUGREPORT = Alistair Crooks <agc@netbsd.org> c0596823
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PACKAGE_STRING = netpgp 20101107
PACKAGE_TARNAME = netpgp
PACKAGE_VERSION = 20101107
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abs_srcdir = /usr/src/crypto/external/bsd/netpgp/dist/src/netpgpverify
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-rm -f *.tab.c
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|| $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
$$tags $$unique
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here=`$(am__cd) $(top_builddir) && pwd` \
&& cd $(top_srcdir) \
&& gtags -i $(GTAGS_ARGS) $$here
distclean-tags:
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
distdir: $(DISTFILES)
@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
list='$(DISTFILES)'; \
dist_files=`for file in $$list; do echo $$file; done | \
sed -e "s|^$$srcdirstrip/||;t" \
-e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
case $$dist_files in \
*/*) $(MKDIR_P) `echo "$$dist_files" | \
sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
sort -u` ;; \
esac; \
for file in $$dist_files; do \
if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
if test -d $$d/$$file; then \
dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
fi; \
cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
else \
test -f $(distdir)/$$file \
|| cp -p $$d/$$file $(distdir)/$$file \
|| exit 1; \
fi; \
done
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@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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`test -z '$(STRIP)' || \
echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
mostlyclean-generic:
clean-generic:
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
maintainer-clean-generic:
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@echo "it deletes files that may require special tools to rebuild."
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# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
/*-
* Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
* All rights reserved.
*
* 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, this list of conditions and the following disclaimer.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
*/
#include <sys/types.h>
#include <err.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "netpgp/verify.h"
#include "array.h"
/* print the time nicely */
static void
ptime(int64_t secs)
{
time_t t;
t = (time_t)secs;
printf("%s", ctime(&t));
}
/* print entry n */
static void
pentry(pgpv_t *pgp, int n)
{
char *s;
pgpv_get_entry(pgp, (unsigned)n, &s);
printf("%s", s);
free(s);
}
#define MB(x) ((x) * 1024 * 1024)
/* get stdin into memory so we can verify it */
static char *
getstdin(ssize_t *cc, size_t *size)
{
size_t newsize;
char *newin;
char *in;
int rc;
*cc = 0;
*size = 0;
in = NULL;
do {
newsize = *size + MB(1);
if ((newin = realloc(in, newsize)) == NULL) {
break;
}
in = newin;
*size = newsize;
if ((rc = read(STDIN_FILENO, &in[*cc], newsize - *cc)) > 0) {
*cc += rc;
}
} while (rc > 0);
return in;
}
/* verify memory or file */
static int
verify_data(pgpv_t *pgp, const char *cmd, const char *inname, char *in, ssize_t cc)
{
pgpv_cursor_t cursor;
size_t size;
size_t cookie;
char *data;
memset(&cursor, 0x0, sizeof(cursor));
if (strcasecmp(cmd, "cat") == 0) {
if ((cookie = pgpv_verify(&cursor, pgp, in, cc)) != 0) {
if ((size = pgpv_get_verified(&cursor, cookie, &data)) > 0) {
printf("%.*s", (int)size, data);
}
return 1;
}
} else if (strcasecmp(cmd, "verify") == 0) {
if (pgpv_verify(&cursor, pgp, in, cc)) {
printf("Good signature for %s made ", inname);
ptime(cursor.sigtime);
pentry(pgp, ARRAY_ELEMENT(cursor.found, 0));
return 1;
}
warnx("Signature did not match contents -- %s", cursor.why);
} else {
warnx("unrecognised command \"%s\"", cmd);
}
return 0;
}
int
main(int argc, char **argv)
{
const char *keyring;
const char *cmd;
ssize_t cc;
size_t size;
pgpv_t pgp;
char *in;
int ok;
int i;
memset(&pgp, 0x0, sizeof(pgp));
cmd = NULL;
keyring = NULL;
ok = 1;
while ((i = getopt(argc, argv, "c:k:")) != -1) {
switch(i) {
case 'c':
cmd = optarg;
break;
case 'k':
keyring = optarg;
break;
default:
break;
}
}
if (cmd == NULL) {
cmd = "verify";
}
if (!pgpv_read_pubring(&pgp, keyring, -1)) {
errx(EXIT_FAILURE, "can't read keyring");
}
if (optind == argc) {
in = getstdin(&cc, &size);
ok = verify_data(&pgp, cmd, "[stdin]", in, cc);
} else {
for (ok = 1, i = optind ; i < argc ; i++) {
if (!verify_data(&pgp, cmd, argv[i], argv[i], -1)) {
ok = 0;
}
}
}
pgpv_close(&pgp);
exit((ok) ? EXIT_SUCCESS : EXIT_FAILURE);
}
.\" $NetBSD: netpgpverify.1,v 1.1.1.1 2013/02/23 21:11:57 agc Exp $
.\"
.\" Copyright (c) 2009 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This manual page is derived from software contributed to
.\" The NetBSD Foundation by Alistair Crooks (agc@NetBSD.org).
.\"
.\" 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, this list of conditions and the following disclaimer.
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``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 FOUNDATION OR CONTRIBUTORS
.\" 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.
.\"
.Dd November 10, 2010
.Dt NETPGPVERIFY 1
.Os
.Sh NAME
.Nm netpgpverify
.Nd standalone program for digital signature verification
.Sh SYNOPSIS
.Nm
.Fl Fl verify
.Op Fl Fl output Ns = Ns Ar filename
.Op options
.Ar file ...
.Pp
where the options for all commands are:
.Pp
.Op Fl Fl coredumps
.br
.Op Fl Fl homedir Ns = Ns Ar home-directory
.br
.Op Fl Fl keyring Ns = Ns Ar keyring
.br
.Op Fl Fl userid Ns = Ns Ar userid
.br
.Op Fl Fl verbose
.Sh DESCRIPTION
The
.Nm
complements the
.Xr netpgp 1
program, and duplicates its verification functionality in
a single standalone program.
The reason for this duplication is simply because verification
of digital signatures
is such a common operation that a single, much smaller,
standalone program can be used.
.Pp
The following commands are used to verify signatures:
.Bl -tag -width Ar
.It Fl Fl coredumps
In normal processing,
if an error occurs, the contents of memory are saved to disk, and can
be read using tools to analyse behaviour.
Unfortunately this can disclose information to people viewing
the core dump, such as secret keys, and passphrases protecting
those keys.
In normal operation,
.Nm
will turn off the ability to save core dumps on persistent storage,
but selecting this option will allow core dumps to be written to disk.
This option should be used wisely, and any core dumps should
be deleted in a secure manner when no longer needed.
.It Fl Fl homedir Ar home-directory
Keyrings are normally located, for historical reasons, within
the user's home directory in a subdirectory called
.Dq Pa .gnupg
and this option specifies an alternative location in which to
find that sub-directory.
.It Fl Fl keyring Ar keyring
This option specifies an alternative keyring to be used.
All keyring operations will be relative to this alternative keyring.
.It Fl Fl output
specifies a filename to which verified output from a signed file
may be redirected.
The default is to send the verified output to stdout,
and this may also be specified using the
.Dq \-
value.
.It Fl Fl verbose
This option can be used to view information during
the process of the
.Nm
requests.
.El
.Sh SIGNING AND VERIFICATION
Verification of a file's signature is best viewed using the following example:
.Bd -literal
% netpgp --sign --userid=agc@netbsd.org a
signature 2048/RSA (Encrypt or Sign) 1b68dcfcc0596823 2004-01-12
Key fingerprint: d415 9deb 336d e4cc cdfa 00cd 1b68 dcfc c059 6823
uid Alistair Crooks \*[Lt]alistair@hockley-crooks.com\*[Gt]
uid Alistair Crooks \*[Lt]agc@pkgsrc.org\*[Gt]
uid Alistair Crooks \*[Lt]agc@netbsd.org\*[Gt]
uid Alistair Crooks \*[Lt]agc@alistaircrooks.com\*[Gt]
uid Alistair Crooks (Yahoo!) \*[Lt]agcrooks@yahoo-inc.com\*[Gt]
encryption 2048/RSA (Encrypt or Sign) 79deb61e488eee74 2004-01-12
netpgp passphrase:
% netpgpverify a.gpg
Good signature for a.gpg made Thu Jan 29 03:06:00 2009
using RSA (Encrypt or Sign) key 1B68DCFCC0596823
signature 2048/RSA (Encrypt or Sign) 1b68dcfcc0596823 2004-01-12
Key fingerprint: d415 9deb 336d e4cc cdfa 00cd 1b68 dcfc c059 6823
uid Alistair Crooks \*[Lt]alistair@hockley-crooks.com\*[Gt]
uid Alistair Crooks \*[Lt]agc@pkgsrc.org\*[Gt]
uid Alistair Crooks \*[Lt]agc@netbsd.org\*[Gt]
uid Alistair Crooks \*[Lt]agc@alistaircrooks.com\*[Gt]
uid Alistair Crooks (Yahoo!) \*[Lt]agcrooks@yahoo-inc.com\*[Gt]
encryption 2048/RSA (Encrypt or Sign) 79deb61e488eee74 2004-01-12
%
.Ed
.Pp
In the example above, a signature is made on a single file called
.Dq Pa a
using a user identity corresponding to
.Dq agc@netbsd.org
and using the
.Xr netpgp 1
program.
The key located for the user identity is displayed, and
the user is prompted to type in their passphrase.
The resulting file, called
.Dq Pa a.gpg
is placed in the same directory.
The second part of the example shows a verification
using
.Nm
of the signed file
taking place.
The time and user identity of the signatory is displayed, followed
by a fuller description of the public key of the signatory.
In both cases, the exit value from the utility was a successful one.
.Sh EXIT STATUS
The
.Nm
utility will return 0 for success,
1 if the file's signature does not match what was expected,
or 2 if any other error occurs.
.Sh SEE ALSO
.Xr netpgp 1 ,
.\" .Xr libbz2 3 ,
.Xr libnetpgp 3 ,
.Xr ssl 3 ,
.Xr zlib 3
.Sh STANDARDS
The
.Nm
utility is designed to conform to IETF RFC 4880.
.Sh HISTORY
The
.Nm
command first appeared in
.Nx 6.0 .
.Sh AUTHORS
.An -nosplit
.An Ben Laurie ,
.An Rachel Willmer ,
and was overhauled and rewritten by
.An Alistair Crooks Aq agc@NetBSD.org .
This manual page was written by
.An Alistair Crooks .
/* $NetBSD: verify.c,v 1.1.1.1 2013/02/23 21:11:57 agc Exp $ */
/*-
* Copyright (c) 2009,2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Alistair Crooks (agc@NetBSD.org)
*
* 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, this list of conditions and the following disclaimer.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/* Command line program to perform netpgp operations */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <getopt.h>
#include <netpgp.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/*
* SHA1 is now looking as though it should not be used. Let's
* pre-empt this by specifying SHA256 - gpg interoperates just fine
* with SHA256 - agc, 20090522
*/
#define DEFAULT_HASH_ALG "SHA256"
static const char *usage =
"\t--verify [options] files... OR\n"
"\t--cat [--output=file] [options] files...\n"
"where options are:\n"
"\t[--coredumps] AND/OR\n"
"\t[--homedir=<homedir>] AND/OR\n"
"\t[--keyring=<keyring>] AND/OR\n"
"\t[--userid=<userid>] AND/OR\n"
"\t[--maxmemalloc=<number of bytes>] AND/OR\n"
"\t[--verbose]\n";
enum optdefs {
/* commands */
VERIFY,
VERIFY_CAT,
VERSION_CMD,
HELP_CMD,
/* options */
SSHKEYS,
KEYRING,
USERID,
ARMOUR,
HOMEDIR,
OUTPUT,
RESULTS,
VERBOSE,
COREDUMPS,
SSHKEYFILE,
MAX_MEM_ALLOC,
/* debug */
OPS_DEBUG
};
#define EXIT_ERROR 2
static struct option options[] = {
/* file manipulation commands */
{"verify", no_argument, NULL, VERIFY},
{"cat", no_argument, NULL, VERIFY_CAT},
{"vericat", no_argument, NULL, VERIFY_CAT},
{"verify-cat", no_argument, NULL, VERIFY_CAT},
{"verify-show", no_argument, NULL, VERIFY_CAT},
{"verifyshow", no_argument, NULL, VERIFY_CAT},
{"help", no_argument, NULL, HELP_CMD},
{"version", no_argument, NULL, VERSION_CMD},
/* options */
{"ssh", no_argument, NULL, SSHKEYS},
{"ssh-keys", no_argument, NULL, SSHKEYS},
{"sshkeyfile", required_argument, NULL, SSHKEYFILE},
{"coredumps", no_argument, NULL, COREDUMPS},
{"keyring", required_argument, NULL, KEYRING},
{"userid", required_argument, NULL, USERID},
{"home", required_argument, NULL, HOMEDIR},
{"homedir", required_argument, NULL, HOMEDIR},
{"armor", no_argument, NULL, ARMOUR},
{"armour", no_argument, NULL, ARMOUR},
{"verbose", no_argument, NULL, VERBOSE},
{"output", required_argument, NULL, OUTPUT},
{"results", required_argument, NULL, RESULTS},
{"maxmemalloc", required_argument, NULL, MAX_MEM_ALLOC},
{"max-mem", required_argument, NULL, MAX_MEM_ALLOC},
{"max-alloc", required_argument, NULL, MAX_MEM_ALLOC},
{ NULL, 0, NULL, 0},
};
/* gather up program variables into one struct */
typedef struct prog_t {
char keyring[MAXPATHLEN + 1]; /* name of keyring */
char *progname; /* program name */
char *output; /* output file name */
int overwrite; /* overwrite files? */
int armour; /* ASCII armor */
int detached; /* use separate file */
int cmd; /* netpgp command */
} prog_t;
/* print a usage message */
static void
print_usage(const char *usagemsg, char *progname)
{
(void) fprintf(stderr,
"%s\nAll bug reports, praise and chocolate, please, to:\n%s\n",
netpgp_get_info("version"),
netpgp_get_info("maintainer"));
(void) fprintf(stderr, "Usage: %s COMMAND OPTIONS:\n%s %s",
progname, progname, usagemsg);
}
/* read all of stdin into memory */
static int
stdin_to_mem(netpgp_t *netpgp, char **temp, char **out, unsigned *maxsize)
{
unsigned newsize;
unsigned size;
char buf[BUFSIZ * 8];
char *loc;
int n;
*maxsize = (unsigned)atoi(netpgp_getvar(netpgp, "max mem alloc"));
size = 0;
*out = *temp = NULL;
while ((n = read(STDIN_FILENO, buf, sizeof(buf))) > 0) {
/* round up the allocation */
newsize = size + ((n / BUFSIZ) + 1) * BUFSIZ;
if (newsize > *maxsize) {
(void) fprintf(stderr, "bounds check\n");
return size;
}
loc = realloc(*temp, newsize);
if (loc == NULL) {
(void) fprintf(stderr, "short read\n");
return size;
}
*temp = loc;
(void) memcpy(&(*temp)[size], buf, n);
size += n;
}
if ((*out = calloc(1, *maxsize)) == NULL) {
(void) fprintf(stderr, "Bad alloc\n");
return 0;
}
return (int)size;
}
/* output the text to stdout */
static int
show_output(char *out, int size, const char *header)
{
int cc;
int n;
if (size <= 0) {
(void) fprintf(stderr, "%s\n", header);
return 0;
}
for (cc = 0 ; cc < size ; cc += n) {
if ((n = write(STDOUT_FILENO, &out[cc], size - cc)) <= 0) {
break;
}
}
if (cc < size) {
(void) fprintf(stderr, "Short write\n");
return 0;
}
return cc == size;
}
/* do a command once for a specified file 'f' */
static int
netpgp_cmd(netpgp_t *netpgp, prog_t *p, char *f)
{
unsigned maxsize;
char *out;
char *in;
int ret;
int cc;
if (f == NULL) {
cc = stdin_to_mem(netpgp, &in, &out, &maxsize);
ret = netpgp_verify_memory(netpgp, in, cc,
(p->cmd == VERIFY_CAT) ? out : NULL,
(p->cmd == VERIFY_CAT) ? maxsize : 0,
p->armour);
ret = show_output(out, ret, "Bad memory verification");
free(in);
free(out);
return ret;
}
return netpgp_verify_file(netpgp, f,
(p->cmd == VERIFY) ? NULL :
(p->output) ? p->output : "-",
p->armour);
}
int
main(int argc, char **argv)
{
netpgp_t netpgp;
prog_t p;
int optindex;
int homeset;
int ret;
int ch;
int i;
(void) memset(&p, 0x0, sizeof(p));
(void) memset(&netpgp, 0x0, sizeof(netpgp));
homeset = 0;
p.progname = argv[0];
p.overwrite = 1;
p.output = NULL;
if (argc < 2) {
print_usage(usage, p.progname);
exit(EXIT_ERROR);
}
/* set some defaults */
netpgp_setvar(&netpgp, "hash", DEFAULT_HASH_ALG);
/* 4 MiB for a memory file */
netpgp_setvar(&netpgp, "max mem alloc", "4194304");
optindex = 0;
while ((ch = getopt_long(argc, argv, "", options, &optindex)) != -1) {
switch (options[optindex].val) {
case COREDUMPS:
netpgp_setvar(&netpgp, "coredumps", "allowed");
p.cmd = options[optindex].val;
break;
case VERIFY:
case VERIFY_CAT:
p.cmd = options[optindex].val;
break;
case VERSION_CMD:
printf(
"%s\nAll bug reports, praise and chocolate, please, to:\n%s\n",
netpgp_get_info("version"),
netpgp_get_info("maintainer"));
exit(EXIT_SUCCESS);
/* options */
case SSHKEYS:
netpgp_setvar(&netpgp, "ssh keys", "1");
break;
case KEYRING:
if (optarg == NULL) {
(void) fprintf(stderr,
"No keyring argument provided\n");
exit(EXIT_ERROR);
}
snprintf(p.keyring, sizeof(p.keyring), "%s", optarg);
break;
case USERID:
if (optarg == NULL) {
(void) fprintf(stderr,
"No userid argument provided\n");
exit(EXIT_ERROR);
}
netpgp_setvar(&netpgp, "userid", optarg);
break;
case ARMOUR:
p.armour = 1;
break;
case VERBOSE:
netpgp_incvar(&netpgp, "verbose", 1);
break;
case HOMEDIR:
if (optarg == NULL) {
(void) fprintf(stderr,
"No home directory argument provided\n");
exit(EXIT_ERROR);
}
netpgp_set_homedir(&netpgp, optarg, NULL, 0);
homeset = 1;
break;
case OUTPUT:
if (optarg == NULL) {
(void) fprintf(stderr,
"No output filename argument provided\n");
exit(EXIT_ERROR);
}
if (p.output) {
(void) free(p.output);
}
p.output = strdup(optarg);
break;
case RESULTS:
if (optarg == NULL) {
(void) fprintf(stderr,
"No output filename argument provided\n");
exit(EXIT_ERROR);
}
netpgp_setvar(&netpgp, "results", optarg);
break;
case SSHKEYFILE:
netpgp_setvar(&netpgp, "ssh keys", "1");
netpgp_setvar(&netpgp, "sshkeyfile", optarg);
break;
case MAX_MEM_ALLOC:
netpgp_setvar(&netpgp, "max mem alloc", optarg);
break;
default:
p.cmd = HELP_CMD;
break;
}
}
if (!homeset) {
netpgp_set_homedir(&netpgp, getenv("HOME"),
netpgp_getvar(&netpgp, "ssh keys") ? "/.ssh" : "/.gnupg", 1);
}
/* initialise, and read keys from file */
if (!netpgp_init(&netpgp)) {
printf("can't initialise\n");
exit(EXIT_ERROR);
}
/* now do the required action for each of the command line args */
ret = EXIT_SUCCESS;
if (optind == argc) {
if (!netpgp_cmd(&netpgp, &p, NULL)) {
ret = EXIT_FAILURE;
}
} else {
for (i = optind; i < argc; i++) {
if (!netpgp_cmd(&netpgp, &p, argv[i])) {
ret = EXIT_FAILURE;
}
}
}
netpgp_end(&netpgp);
exit(ret);
}