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-rw-r--r--lib/libalpm/Makefile.am1
-rw-r--r--lib/libalpm/alpm.h2
-rw-r--r--lib/libalpm/base64.c190
-rw-r--r--lib/libalpm/base64.h68
-rw-r--r--lib/libalpm/be_package.c49
-rw-r--r--lib/libalpm/package.c39
-rw-r--r--lib/libalpm/package.h12
7 files changed, 360 insertions, 1 deletions
diff --git a/lib/libalpm/Makefile.am b/lib/libalpm/Makefile.am
index 1bda5714..7c411b2c 100644
--- a/lib/libalpm/Makefile.am
+++ b/lib/libalpm/Makefile.am
@@ -25,6 +25,7 @@ libalpm_la_SOURCES = \
alpm.h alpm.c \
alpm_list.h alpm_list.c \
backup.h backup.c \
+ base64.h base64.c \
be_local.c \
be_package.c \
be_sync.c \
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index d0475372..fb438404 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -45,6 +45,7 @@ extern "C" {
typedef struct __pmdb_t pmdb_t;
typedef struct __pmpkg_t pmpkg_t;
+typedef struct __pmpgpsig_t pmpgpsig_t;
typedef struct __pmdelta_t pmdelta_t;
typedef struct __pmgrp_t pmgrp_t;
typedef struct __pmtrans_t pmtrans_t;
@@ -215,6 +216,7 @@ time_t alpm_pkg_get_builddate(pmpkg_t *pkg);
time_t alpm_pkg_get_installdate(pmpkg_t *pkg);
const char *alpm_pkg_get_packager(pmpkg_t *pkg);
const char *alpm_pkg_get_md5sum(pmpkg_t *pkg);
+const pmpgpsig_t *alpm_pkg_get_pgpsig(pmpkg_t *pkg);
const char *alpm_pkg_get_arch(pmpkg_t *pkg);
off_t alpm_pkg_get_size(pmpkg_t *pkg);
off_t alpm_pkg_get_isize(pmpkg_t *pkg);
diff --git a/lib/libalpm/base64.c b/lib/libalpm/base64.c
new file mode 100644
index 00000000..fa8bec5c
--- /dev/null
+++ b/lib/libalpm/base64.c
@@ -0,0 +1,190 @@
+/*
+ * RFC 1521 base64 encoding/decoding
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * 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/>.
+ */
+/*
+ * Pacman Notes:
+ *
+ * Taken from the PolarSSL project at www.polarssl.org under terms of the
+ * GPL. This is from version 0.14.2 of the library, and has been modified
+ * as following, which may be helpful for future updates:
+ * * remove "polarssl/config.h" include
+ * * change include from "polarssl/base64.h" to "base64.h"
+ * * removal of SELF_TEST code
+ */
+
+#include "base64.h"
+
+static const unsigned char base64_enc_map[64] =
+{
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+ 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+ 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
+ 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+ 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
+ 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', '+', '/'
+};
+
+static const unsigned char base64_dec_map[128] =
+{
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
+ 127, 127, 127, 62, 127, 127, 127, 63, 52, 53,
+ 54, 55, 56, 57, 58, 59, 60, 61, 127, 127,
+ 127, 64, 127, 127, 127, 0, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 127, 127, 127, 127, 127, 127, 26, 27, 28,
+ 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+ 49, 50, 51, 127, 127, 127, 127, 127
+};
+
+/*
+ * Encode a buffer into base64 format
+ */
+int base64_encode( unsigned char *dst, int *dlen,
+ const unsigned char *src, int slen )
+{
+ int i, n;
+ int C1, C2, C3;
+ unsigned char *p;
+
+ if( slen == 0 )
+ return( 0 );
+
+ n = (slen << 3) / 6;
+
+ switch( (slen << 3) - (n * 6) )
+ {
+ case 2: n += 3; break;
+ case 4: n += 2; break;
+ default: break;
+ }
+
+ if( *dlen < n + 1 )
+ {
+ *dlen = n + 1;
+ return( POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL );
+ }
+
+ n = (slen / 3) * 3;
+
+ for( i = 0, p = dst; i < n; i += 3 )
+ {
+ C1 = *src++;
+ C2 = *src++;
+ C3 = *src++;
+
+ *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+ *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+ *p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F];
+ *p++ = base64_enc_map[C3 & 0x3F];
+ }
+
+ if( i < slen )
+ {
+ C1 = *src++;
+ C2 = ((i + 1) < slen) ? *src++ : 0;
+
+ *p++ = base64_enc_map[(C1 >> 2) & 0x3F];
+ *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
+
+ if( (i + 1) < slen )
+ *p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F];
+ else *p++ = '=';
+
+ *p++ = '=';
+ }
+
+ *dlen = p - dst;
+ *p = 0;
+
+ return( 0 );
+}
+
+/*
+ * Decode a base64-formatted buffer
+ */
+int base64_decode( unsigned char *dst, int *dlen,
+ const unsigned char *src, int slen )
+{
+ int i, j, n;
+ unsigned long x;
+ unsigned char *p;
+
+ for( i = j = n = 0; i < slen; i++ )
+ {
+ if( ( slen - i ) >= 2 &&
+ src[i] == '\r' && src[i + 1] == '\n' )
+ continue;
+
+ if( src[i] == '\n' )
+ continue;
+
+ if( src[i] == '=' && ++j > 2 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ if( src[i] > 127 || base64_dec_map[src[i]] == 127 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ if( base64_dec_map[src[i]] < 64 && j != 0 )
+ return( POLARSSL_ERR_BASE64_INVALID_CHARACTER );
+
+ n++;
+ }
+
+ if( n == 0 )
+ return( 0 );
+
+ n = ((n * 6) + 7) >> 3;
+
+ if( *dlen < n )
+ {
+ *dlen = n;
+ return( POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL );
+ }
+
+ for( j = 3, n = x = 0, p = dst; i > 0; i--, src++ )
+ {
+ if( *src == '\r' || *src == '\n' )
+ continue;
+
+ j -= ( base64_dec_map[*src] == 64 );
+ x = (x << 6) | ( base64_dec_map[*src] & 0x3F );
+
+ if( ++n == 4 )
+ {
+ n = 0;
+ if( j > 0 ) *p++ = (unsigned char)( x >> 16 );
+ if( j > 1 ) *p++ = (unsigned char)( x >> 8 );
+ if( j > 2 ) *p++ = (unsigned char)( x );
+ }
+ }
+
+ *dlen = p - dst;
+
+ return( 0 );
+}
diff --git a/lib/libalpm/base64.h b/lib/libalpm/base64.h
new file mode 100644
index 00000000..0ae9612c
--- /dev/null
+++ b/lib/libalpm/base64.h
@@ -0,0 +1,68 @@
+/**
+ * \file base64.h
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * 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/>.
+ */
+
+#ifndef _BASE64_H
+#define _BASE64_H
+
+#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL 0x0010
+#define POLARSSL_ERR_BASE64_INVALID_CHARACTER 0x0012
+
+/**
+ * \brief Encode a buffer into base64 format
+ *
+ * \param dst destination buffer
+ * \param dlen size of the buffer
+ * \param src source buffer
+ * \param slen amount of data to be encoded
+ *
+ * \return 0 if successful, or POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL.
+ * *dlen is always updated to reflect the amount
+ * of data that has (or would have) been written.
+ *
+ * \note Call this function with *dlen = 0 to obtain the
+ * required buffer size in *dlen
+ */
+int base64_encode( unsigned char *dst, int *dlen,
+ const unsigned char *src, int slen );
+
+/**
+ * \brief Decode a base64-formatted buffer
+ *
+ * \param dst destination buffer
+ * \param dlen size of the buffer
+ * \param src source buffer
+ * \param slen amount of data to be decoded
+ *
+ * \return 0 if successful, POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL, or
+ * POLARSSL_ERR_BASE64_INVALID_DATA if the input data is not
+ * correct. *dlen is always updated to reflect the amount
+ * of data that has (or would have) been written.
+ *
+ * \note Call this function with *dlen = 0 to obtain the
+ * required buffer size in *dlen
+ */
+int base64_decode( unsigned char *dst, int *dlen,
+ const unsigned char *src, int slen );
+
+#endif /* base64.h */
diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c
index fbd2c0c7..e8d26aa7 100644
--- a/lib/libalpm/be_package.c
+++ b/lib/libalpm/be_package.c
@@ -251,11 +251,57 @@ static pmpkg_t *pkg_load(const char *pkgfile, int full)
RET_ERR(PM_ERR_WRONG_ARGS, NULL);
}
- if(stat(pkgfile, &st) != 0) {
+ /* attempt to stat the package file, ensure it exists */
+ if(stat(pkgfile, &st) == 0) {
+ char *pgpfile;
+
+ newpkg = _alpm_pkg_new();
+ if(newpkg == NULL) {
+ RET_ERR(PM_ERR_MEMORY, NULL);
+ }
+ newpkg->filename = strdup(pkgfile);
+ newpkg->size = st.st_size;
+
+ /* look around for a PGP signature file; load if available */
+ MALLOC(pgpfile, strlen(pkgfile) + 5, RET_ERR(PM_ERR_MEMORY, NULL));
+ sprintf(pgpfile, "%s.sig", pkgfile);
+ if(access(pgpfile, R_OK) == 0) {
+ FILE *f;
+ long bytes;
+ size_t bytes_read;
+ f = fopen(pgpfile, "rb");
+ fseek(f, 0L, SEEK_END);
+ bytes = ftell(f);
+ fseek(f, 0L, SEEK_SET);
+ /* don't read the file in if it is obviously not the size of a sig */
+ if(bytes == 72) {
+ CALLOC(newpkg->pgpsig.rawdata, bytes, sizeof(char),
+ RET_ERR(PM_ERR_MEMORY, NULL));
+ bytes_read = fread(newpkg->pgpsig.rawdata, sizeof(char), bytes, f);
+ if(bytes_read == (size_t)bytes) {
+ newpkg->pgpsig.rawlen = bytes;
+ _alpm_log(PM_LOG_DEBUG,
+ "loaded package .sig file, location %s\n", pgpfile);
+ } else {
+ _alpm_log(PM_LOG_WARNING, _("Failed reading PGP signature file for %s"),
+ pkgfile);
+ }
+ } else {
+ _alpm_log(PM_LOG_WARNING, _("PGP signature file for %s was abnormal"
+ " (had length %ld), skipping\n"), pkgfile, bytes);
+ }
+ fclose(f);
+ } else {
+ _alpm_log(PM_LOG_DEBUG, "no package signature file found\n");
+ }
+ FREE(pgpfile);
+ } else {
+ /* couldn't stat the pkgfile, return an error */
RET_ERR(PM_ERR_PKG_OPEN, NULL);
}
if((archive = archive_read_new()) == NULL) {
+ alpm_pkg_free(newpkg);
RET_ERR(PM_ERR_LIBARCHIVE, NULL);
}
@@ -264,6 +310,7 @@ static pmpkg_t *pkg_load(const char *pkgfile, int full)
if (archive_read_open_filename(archive, pkgfile,
ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ alpm_pkg_free(newpkg);
RET_ERR(PM_ERR_PKG_OPEN, NULL);
}
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 445653ec..257b2aeb 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -40,6 +40,7 @@
#include "delta.h"
#include "handle.h"
#include "deps.h"
+#include "base64.h"
/** \addtogroup alpm_packages Package Functions
* @brief Functions to manipulate libalpm packages
@@ -201,6 +202,42 @@ const char SYMEXPORT *alpm_pkg_get_md5sum(pmpkg_t *pkg)
return pkg->ops->get_md5sum(pkg);
}
+static int decode_pgpsig(pmpkg_t *pkg) {
+ int len = strlen(pkg->pgpsig.encdata);
+ const unsigned char *usline = (const unsigned char*)pkg->pgpsig.encdata;
+ int destlen = 0;
+ /* get the necessary size for the buffer by passing 0 */
+ int ret = base64_decode(NULL, &destlen, usline, len);
+ /* alloc our memory and repeat the call to decode */
+ MALLOC(pkg->pgpsig.rawdata, (size_t)destlen, goto error);
+ ret = base64_decode(pkg->pgpsig.rawdata, &destlen, usline, len);
+ pkg->pgpsig.rawlen = destlen;
+ if(ret != 0) {
+ goto error;
+ }
+
+ FREE(pkg->pgpsig.encdata);
+ return 0;
+
+error:
+ FREE(pkg->pgpsig.rawdata);
+ pkg->pgpsig.rawlen = 0;
+ return 1;
+}
+
+const pmpgpsig_t SYMEXPORT *alpm_pkg_get_pgpsig(pmpkg_t *pkg)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(pkg != NULL, RET_ERR(PM_ERR_WRONG_ARGS, NULL));
+
+ if(pkg->pgpsig.rawdata == NULL && pkg->pgpsig.encdata != NULL) {
+ decode_pgpsig(pkg);
+ }
+ return &(pkg->pgpsig);
+}
+
const char SYMEXPORT *alpm_pkg_get_arch(pmpkg_t *pkg)
{
return pkg->ops->get_arch(pkg);
@@ -463,6 +500,8 @@ void _alpm_pkg_free(pmpkg_t *pkg)
FREE(pkg->url);
FREE(pkg->packager);
FREE(pkg->md5sum);
+ FREE(pkg->pgpsig.encdata);
+ FREE(pkg->pgpsig.rawdata);
FREE(pkg->arch);
FREELIST(pkg->licenses);
FREELIST(pkg->replaces);
diff --git a/lib/libalpm/package.h b/lib/libalpm/package.h
index b161d5f1..25ed5cf4 100644
--- a/lib/libalpm/package.h
+++ b/lib/libalpm/package.h
@@ -87,6 +87,16 @@ struct pkg_operations {
*/
extern struct pkg_operations default_pkg_ops;
+struct __pmpgpsig_t {
+ /* we will either store the encoded data or the raw data-
+ * this way we can decode on an as-needed basis since most
+ * operations won't require the overhead of base64 decodes
+ * on all packages in a sync repository. */
+ char *encdata;
+ size_t rawlen;
+ unsigned char *rawdata;
+};
+
struct __pmpkg_t {
unsigned long name_hash;
char *filename;
@@ -98,6 +108,8 @@ struct __pmpkg_t {
char *md5sum;
char *arch;
+ pmpgpsig_t pgpsig;
+
time_t builddate;
time_t installdate;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 08:46:24 +0000