mirror of
https://github.com/moparisthebest/pacman
synced 2025-01-06 03:18:02 -05:00
Integrate GPGME into libalpm
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
parent
061948597d
commit
39c75c7000
@ -161,6 +161,10 @@ AS_IF([test "x$with_curl" != "xno"],
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AC_MSG_RESULT(no))
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AC_MSG_RESULT(no))
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AM_CONDITIONAL([HAVE_LIBCURL], [test "x$ac_cv_lib_curl_curl_easy_perform" = "xyes"])
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AM_CONDITIONAL([HAVE_LIBCURL], [test "x$ac_cv_lib_curl_curl_easy_perform" = "xyes"])
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# Check for gpgme
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AC_CHECK_LIB([gpgme], [gpgme_check_version], ,
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AC_MSG_ERROR([gpgme is needed to compile pacman!]))
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# Checks for header files.
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# Checks for header files.
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AC_CHECK_HEADERS([fcntl.h glob.h libintl.h locale.h mntent.h string.h \
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AC_CHECK_HEADERS([fcntl.h glob.h libintl.h locale.h mntent.h string.h \
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sys/ioctl.h sys/mount.h sys/param.h sys/statvfs.h \
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sys/ioctl.h sys/mount.h sys/param.h sys/statvfs.h \
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@ -43,6 +43,7 @@ libalpm_la_SOURCES = \
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package.h package.c \
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package.h package.c \
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pkghash.h pkghash.c \
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pkghash.h pkghash.c \
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remove.h remove.c \
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remove.h remove.c \
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signing.c signing.h \
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sync.h sync.c \
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sync.h sync.c \
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trans.h trans.c \
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trans.h trans.c \
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util.h util.c \
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util.h util.c \
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@ -245,6 +245,12 @@ int alpm_pkg_has_scriptlet(pmpkg_t *pkg);
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off_t alpm_pkg_download_size(pmpkg_t *newpkg);
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off_t alpm_pkg_download_size(pmpkg_t *newpkg);
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alpm_list_t *alpm_pkg_unused_deltas(pmpkg_t *pkg);
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alpm_list_t *alpm_pkg_unused_deltas(pmpkg_t *pkg);
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/*
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* Signatures
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*/
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int alpm_pkg_check_pgp_signature(pmpkg_t *pkg);
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/*
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/*
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* Deltas
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* Deltas
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*/
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*/
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@ -527,6 +533,7 @@ enum _pmerrno_t {
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PM_ERR_PKG_INVALID_ARCH,
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PM_ERR_PKG_INVALID_ARCH,
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PM_ERR_PKG_REPO_NOT_FOUND,
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PM_ERR_PKG_REPO_NOT_FOUND,
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/* Signatures */
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/* Signatures */
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PM_ERR_SIG_MISSINGDIR,
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PM_ERR_SIG_INVALID,
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PM_ERR_SIG_INVALID,
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PM_ERR_SIG_UNKNOWN,
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PM_ERR_SIG_UNKNOWN,
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/* Deltas */
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/* Deltas */
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@ -543,7 +550,8 @@ enum _pmerrno_t {
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/* External library errors */
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/* External library errors */
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PM_ERR_LIBARCHIVE,
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PM_ERR_LIBARCHIVE,
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PM_ERR_LIBCURL,
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PM_ERR_LIBCURL,
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PM_ERR_EXTERNAL_DOWNLOAD
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PM_ERR_EXTERNAL_DOWNLOAD,
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PM_ERR_GPGME
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};
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};
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extern enum _pmerrno_t pm_errno;
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extern enum _pmerrno_t pm_errno;
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@ -116,6 +116,8 @@ const char SYMEXPORT *alpm_strerror(int err)
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case PM_ERR_PKG_REPO_NOT_FOUND:
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case PM_ERR_PKG_REPO_NOT_FOUND:
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return _("could not find repository for target");
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return _("could not find repository for target");
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/* Signatures */
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/* Signatures */
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case PM_ERR_SIG_MISSINGDIR:
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return _("signature directory not configured correctly");
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case PM_ERR_SIG_INVALID:
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case PM_ERR_SIG_INVALID:
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return _("invalid PGP signature");
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return _("invalid PGP signature");
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case PM_ERR_SIG_UNKNOWN:
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case PM_ERR_SIG_UNKNOWN:
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@ -152,6 +154,8 @@ const char SYMEXPORT *alpm_strerror(int err)
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/* obviously shouldn't get here... */
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/* obviously shouldn't get here... */
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return _("download library error");
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return _("download library error");
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#endif
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#endif
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case PM_ERR_GPGME:
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return _("gpgme error");
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case PM_ERR_EXTERNAL_DOWNLOAD:
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case PM_ERR_EXTERNAL_DOWNLOAD:
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return _("error invoking external downloader");
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return _("error invoking external downloader");
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/* Unknown error! */
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/* Unknown error! */
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219
lib/libalpm/signing.c
Normal file
219
lib/libalpm/signing.c
Normal file
@ -0,0 +1,219 @@
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/*
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* signing.c
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*
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* Copyright (c) 2008-2011 Pacman Development Team <pacman-dev@archlinux.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <locale.h> /* setlocale() */
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#include <gpgme.h>
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/* libalpm */
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#include "signing.h"
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#include "package.h"
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#include "util.h"
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#include "log.h"
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#include "alpm.h"
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#define CHECK_ERR(void) do { \
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if(err != GPG_ERR_NO_ERROR) { goto error; } \
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} while(0)
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static int gpgme_init(void)
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{
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static int init = 0;
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const char *version;
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gpgme_error_t err;
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gpgme_engine_info_t enginfo;
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ALPM_LOG_FUNC;
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if(init) {
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/* we already successfully initialized the library */
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return 0;
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}
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if(!alpm_option_get_signaturedir()) {
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RET_ERR(PM_ERR_SIG_MISSINGDIR, 1);
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}
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/* calling gpgme_check_version() returns the current version and runs
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* some internal library setup code */
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version = gpgme_check_version(NULL);
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_alpm_log(PM_LOG_DEBUG, "GPGME version: %s\n", version);
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gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
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#ifdef LC_MESSAGES
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gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
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#endif
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/* NOTE:
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* The GPGME library installs a SIGPIPE signal handler automatically if
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* the default signal hander is in use. The only time we set a handler
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* for SIGPIPE is in dload.c, and we reset it when we are done. Given that
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* we do this, we can let GPGME do its automagic. However, if we install
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* a library-wide SIGPIPE handler, we will have to be careful.
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*/
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/* check for OpenPGP support (should be a no-brainer, but be safe) */
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err = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
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CHECK_ERR();
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/* set and check engine information */
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err = gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP, NULL,
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alpm_option_get_signaturedir());
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CHECK_ERR();
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err = gpgme_get_engine_info(&enginfo);
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CHECK_ERR();
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_alpm_log(PM_LOG_DEBUG, "GPGME engine info: file=%s, home=%s\n",
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enginfo->file_name, enginfo->home_dir);
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init = 1;
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return 0;
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error:
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_alpm_log(PM_LOG_ERROR, _("GPGME error: %s\n"), gpgme_strerror(err));
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RET_ERR(PM_ERR_GPGME, 1);
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}
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/**
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* Check the PGP package signature for the given package file.
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* @param pkgpath the full path to a package file
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* @param sig PGP signature data in raw form (already decoded)
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* @return a int value : 0 (valid), 1 (invalid), -1 (an error occured)
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*/
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int _alpm_gpgme_checksig(const char *pkgpath, const pmpgpsig_t *sig)
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{
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int ret = 0;
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gpgme_error_t err;
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gpgme_ctx_t ctx;
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gpgme_data_t pkgdata, sigdata;
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gpgme_verify_result_t result;
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gpgme_signature_t gpgsig;
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FILE *pkgfile = NULL, *sigfile = NULL;
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ALPM_LOG_FUNC;
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if(!sig || !sig->rawdata) {
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RET_ERR(PM_ERR_SIG_UNKNOWN, -1);
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}
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if(!pkgpath || access(pkgpath, R_OK) != 0) {
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RET_ERR(PM_ERR_PKG_NOT_FOUND, -1);
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}
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if(gpgme_init()) {
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/* pm_errno was set in gpgme_init() */
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return -1;
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}
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_alpm_log(PM_LOG_DEBUG, "checking package signature for %s\n", pkgpath);
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memset(&ctx, 0, sizeof(ctx));
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memset(&sigdata, 0, sizeof(sigdata));
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memset(&pkgdata, 0, sizeof(pkgdata));
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err = gpgme_new(&ctx);
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CHECK_ERR();
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/* create our necessary data objects to verify the signature */
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/* first the package itself */
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pkgfile = fopen(pkgpath, "rb");
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if(pkgfile == NULL) {
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pm_errno = PM_ERR_PKG_OPEN;
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ret = -1;
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goto error;
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}
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err = gpgme_data_new_from_stream(&pkgdata, pkgfile);
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CHECK_ERR();
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/* next create data object for the signature */
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err = gpgme_data_new_from_mem(&sigdata, (char*)sig->rawdata, sig->rawlen, 0);
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CHECK_ERR();
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/* here's where the magic happens */
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err = gpgme_op_verify(ctx, sigdata, pkgdata, NULL);
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CHECK_ERR();
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result = gpgme_op_verify_result(ctx);
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gpgsig = result->signatures;
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if (!gpgsig || gpgsig->next) {
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_alpm_log(PM_LOG_ERROR, _("Unexpected number of signatures\n"));
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ret = -1;
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goto error;
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}
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fprintf(stdout, "\nsummary=%x\n", gpgsig->summary);
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fprintf(stdout, "fpr=%s\n", gpgsig->fpr);
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fprintf(stdout, "status=%d\n", gpgsig->status);
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fprintf(stdout, "timestamp=%lu\n", gpgsig->timestamp);
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fprintf(stdout, "wrong_key_usage=%u\n", gpgsig->wrong_key_usage);
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fprintf(stdout, "pka_trust=%u\n", gpgsig->pka_trust);
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fprintf(stdout, "chain_model=%u\n", gpgsig->chain_model);
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fprintf(stdout, "validity=%d\n", gpgsig->validity);
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fprintf(stdout, "validity_reason=%d\n", gpgsig->validity_reason);
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fprintf(stdout, "key=%d\n", gpgsig->pubkey_algo);
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fprintf(stdout, "hash=%d\n", gpgsig->hash_algo);
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if(gpgsig->summary & GPGME_SIGSUM_VALID) {
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/* good signature, continue */
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} else if(gpgsig->summary & GPGME_SIGSUM_GREEN) {
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/* 'green' signature, not sure what to do here */
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_alpm_log(PM_LOG_WARNING, _("Package %s has a green signature.\n"),
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pkgpath);
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} else if(gpgsig->summary & GPGME_SIGSUM_KEY_MISSING) {
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pm_errno = PM_ERR_SIG_UNKNOWN;
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_alpm_log(PM_LOG_WARNING, _("Package %s has a signature from an unknown key.\n"),
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pkgpath);
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ret = -1;
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} else {
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/* we'll capture everything else here */
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pm_errno = PM_ERR_SIG_INVALID;
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_alpm_log(PM_LOG_ERROR, _("Package %s has an invalid signature.\n"),
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pkgpath);
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ret = 1;
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}
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error:
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gpgme_data_release(sigdata);
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gpgme_data_release(pkgdata);
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gpgme_release(ctx);
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if(sigfile) {
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fclose(sigfile);
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}
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if(pkgfile) {
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fclose(pkgfile);
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}
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if(err != GPG_ERR_NO_ERROR) {
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_alpm_log(PM_LOG_ERROR, _("GPGME error: %s\n"), gpgme_strerror(err));
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RET_ERR(PM_ERR_GPGME, -1);
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}
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return ret;
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}
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/**
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* Check the PGP package signature for the given package file.
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* @param pkg the package to check
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* @return a int value : 0 (valid), 1 (invalid), -1 (an error occured)
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*/
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int SYMEXPORT alpm_pkg_check_pgp_signature(pmpkg_t *pkg)
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{
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ALPM_LOG_FUNC;
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ASSERT(pkg != NULL, return 0);
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return _alpm_gpgme_checksig(alpm_pkg_get_filename(pkg),
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alpm_pkg_get_pgpsig(pkg));
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}
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/* vim: set ts=2 sw=2 noet: */
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28
lib/libalpm/signing.h
Normal file
28
lib/libalpm/signing.h
Normal file
@ -0,0 +1,28 @@
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/*
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* signing.h
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*
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* Copyright (c) 2008-2011 Pacman Development Team <pacman-dev@archlinux.org>
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|
*
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||||||
|
* This program 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 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program 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/>.
|
||||||
|
*/
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|
#ifndef _ALPM_SIGNING_H
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#define _ALPM_SIGNING_H
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|
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#include "alpm.h"
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int _alpm_gpgme_checksig(const char *pkgpath, const pmpgpsig_t *sig);
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|
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#endif /* _ALPM_SIGNING_H */
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/* vim: set ts=2 sw=2 noet: */
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@ -50,6 +50,7 @@
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#include "delta.h"
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#include "delta.h"
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#include "remove.h"
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#include "remove.h"
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#include "diskspace.h"
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#include "diskspace.h"
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#include "signing.h"
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|
|
||||||
/** Check for new version of pkg in sync repos
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/** Check for new version of pkg in sync repos
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||||||
* (only the first occurrence is considered in sync)
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* (only the first occurrence is considered in sync)
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@ -665,32 +666,24 @@ static int apply_deltas(pmtrans_t *trans)
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* should be deleted.
|
* should be deleted.
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*
|
*
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||||||
* @param trans the transaction
|
* @param trans the transaction
|
||||||
* @param filename the filename of the file to test
|
* @param filename the absolute path of the file to test
|
||||||
* @param md5sum the expected md5sum of the file
|
* @param md5sum the expected md5sum of the file
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*
|
*
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||||||
* @return 0 if the md5sum matched, 1 if not, -1 in case of errors
|
* @return 0 if the md5sum matched, 1 if not, -1 in case of errors
|
||||||
*/
|
*/
|
||||||
static int test_md5sum(pmtrans_t *trans, const char *filename,
|
static int test_md5sum(pmtrans_t *trans, const char *filepath,
|
||||||
const char *md5sum)
|
const char *md5sum)
|
||||||
{
|
{
|
||||||
char *filepath;
|
int ret = _alpm_test_md5sum(filepath, md5sum);
|
||||||
int ret;
|
|
||||||
|
|
||||||
filepath = _alpm_filecache_find(filename);
|
|
||||||
|
|
||||||
ret = _alpm_test_md5sum(filepath, md5sum);
|
|
||||||
|
|
||||||
if(ret == 1) {
|
if(ret == 1) {
|
||||||
int doremove = 0;
|
int doremove = 0;
|
||||||
QUESTION(trans, PM_TRANS_CONV_CORRUPTED_PKG, (char *)filename,
|
QUESTION(trans, PM_TRANS_CONV_CORRUPTED_PKG, (char*)filepath,
|
||||||
NULL, NULL, &doremove);
|
NULL, NULL, &doremove);
|
||||||
if(doremove) {
|
if(doremove) {
|
||||||
unlink(filepath);
|
unlink(filepath);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
FREE(filepath);
|
|
||||||
|
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -800,12 +793,14 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
|
|||||||
for(i = deltas; i; i = i->next) {
|
for(i = deltas; i; i = i->next) {
|
||||||
pmdelta_t *d = alpm_list_getdata(i);
|
pmdelta_t *d = alpm_list_getdata(i);
|
||||||
const char *filename = alpm_delta_get_filename(d);
|
const char *filename = alpm_delta_get_filename(d);
|
||||||
|
char *filepath = _alpm_filecache_find(filename);
|
||||||
const char *md5sum = alpm_delta_get_md5sum(d);
|
const char *md5sum = alpm_delta_get_md5sum(d);
|
||||||
|
|
||||||
if(test_md5sum(trans, filename, md5sum) != 0) {
|
if(test_md5sum(trans, filepath, md5sum) != 0) {
|
||||||
errors++;
|
errors++;
|
||||||
*data = alpm_list_add(*data, strdup(filename));
|
*data = alpm_list_add(*data, strdup(filename));
|
||||||
}
|
}
|
||||||
|
FREE(filepath);
|
||||||
}
|
}
|
||||||
if(errors) {
|
if(errors) {
|
||||||
pm_errno = PM_ERR_DLT_INVALID;
|
pm_errno = PM_ERR_DLT_INVALID;
|
||||||
@ -829,6 +824,7 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
|
|||||||
EVENT(trans, PM_TRANS_EVT_INTEGRITY_START, NULL, NULL);
|
EVENT(trans, PM_TRANS_EVT_INTEGRITY_START, NULL, NULL);
|
||||||
|
|
||||||
errors = 0;
|
errors = 0;
|
||||||
|
|
||||||
for(i = trans->add; i; i = i->next, current++) {
|
for(i = trans->add; i; i = i->next, current++) {
|
||||||
pmpkg_t *spkg = i->data;
|
pmpkg_t *spkg = i->data;
|
||||||
int percent = (current * 100) / numtargs;
|
int percent = (current * 100) / numtargs;
|
||||||
@ -839,17 +835,27 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
|
|||||||
numtargs, current);
|
numtargs, current);
|
||||||
|
|
||||||
const char *filename = alpm_pkg_get_filename(spkg);
|
const char *filename = alpm_pkg_get_filename(spkg);
|
||||||
|
char *filepath = _alpm_filecache_find(filename);
|
||||||
const char *md5sum = alpm_pkg_get_md5sum(spkg);
|
const char *md5sum = alpm_pkg_get_md5sum(spkg);
|
||||||
|
const pmpgpsig_t *pgpsig = alpm_pkg_get_pgpsig(spkg);
|
||||||
|
|
||||||
if(test_md5sum(trans, filename, md5sum) != 0) {
|
/* check md5sum first */
|
||||||
|
if(test_md5sum(trans, filepath, md5sum) != 0) {
|
||||||
errors++;
|
errors++;
|
||||||
*data = alpm_list_add(*data, strdup(filename));
|
*data = alpm_list_add(*data, strdup(filename));
|
||||||
|
FREE(filepath);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
/* check PGP signature next */
|
||||||
|
if(_alpm_gpgme_checksig(filepath, pgpsig) != 0) {
|
||||||
|
errors++;
|
||||||
|
*data = alpm_list_add(*data, strdup(filename));
|
||||||
|
FREE(filepath);
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
/* load the package file and replace pkgcache entry with it in the target list */
|
/* load the package file and replace pkgcache entry with it in the target list */
|
||||||
/* TODO: alpm_pkg_get_db() will not work on this target anymore */
|
/* TODO: alpm_pkg_get_db() will not work on this target anymore */
|
||||||
_alpm_log(PM_LOG_DEBUG, "replacing pkgcache entry with package file for target %s\n", spkg->name);
|
_alpm_log(PM_LOG_DEBUG, "replacing pkgcache entry with package file for target %s\n", spkg->name);
|
||||||
char *filepath = _alpm_filecache_find(filename);
|
|
||||||
pmpkg_t *pkgfile;
|
pmpkg_t *pkgfile;
|
||||||
if(alpm_pkg_load(filepath, 1, &pkgfile) != 0) {
|
if(alpm_pkg_load(filepath, 1, &pkgfile) != 0) {
|
||||||
_alpm_pkg_free(pkgfile);
|
_alpm_pkg_free(pkgfile);
|
||||||
|
Loading…
Reference in New Issue
Block a user