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pacman/lib/libalpm/package.c

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/*
* package.c
*
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005, 2006 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* libalpm */
#include "package.h"
#include "alpm_list.h"
#include "log.h"
#include "util.h"
#include "error.h"
#include "db.h"
#include "cache.h"
#include "provide.h"
#include "handle.h"
#include "alpm.h"
/** \addtogroup alpm_packages Package Functions
* @brief Functions to manipulate libalpm packages
* @{
*/
/** Create a package from a file.
* @param filename location of the package tarball
* @param pkg address of the package pointer
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_pkg_load(const char *filename, pmpkg_t **pkg)
{
_alpm_log(PM_LOG_FUNCTION, "enter alpm_pkg_load");
/* Sanity checks */
ASSERT(filename != NULL && strlen(filename) != 0, RET_ERR(PM_ERR_WRONG_ARGS, -1));
ASSERT(pkg != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
*pkg = _alpm_pkg_load(filename);
if(*pkg == NULL) {
/* pm_errno is set by pkg_load */
return(-1);
}
return(0);
}
/** Free a package.
* @param pkg package pointer to free
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_pkg_free(pmpkg_t *pkg)
{
_alpm_log(PM_LOG_FUNCTION, "enter alpm_pkg_free");
ASSERT(pkg != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
/* Only free packages loaded in user space */
if(pkg->origin != PKG_FROM_CACHE) {
_alpm_pkg_free(pkg);
}
return(0);
}
/** Check the integrity (with sha1) of a package from the sync cache.
* @param pkg package pointer
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_pkg_checksha1sum(pmpkg_t *pkg)
{
char path[PATH_MAX];
struct stat buf;
char *sha1sum = NULL;
alpm_list_t *i;
int retval = 0;
ALPM_LOG_FUNC;
ASSERT(pkg != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
/* We only inspect packages from sync repositories */
ASSERT(pkg->origin == PKG_FROM_CACHE, RET_ERR(PM_ERR_PKG_INVALID, -1));
ASSERT(pkg->data != handle->db_local, RET_ERR(PM_ERR_PKG_INVALID, -1));
/* Loop through the cache dirs until we find a matching file */
for(i = alpm_option_get_cachedirs(); i; i = alpm_list_next(i)) {
snprintf(path, PATH_MAX, "%s%s-%s" PKGEXT, (char*)alpm_list_getdata(i),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
if(stat(path, &buf) == 0) {
break;
}
}
sha1sum = alpm_get_sha1sum(path);
if(sha1sum == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not get sha1sum for package %s-%s"),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
pm_errno = PM_ERR_NOT_A_FILE;
retval = -1;
} else {
if(strcmp(sha1sum, alpm_pkg_get_sha1sum(pkg)) == 0) {
_alpm_log(PM_LOG_DEBUG, "sha1sums for package %s-%s match",
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
} else {
_alpm_log(PM_LOG_ERROR, _("sha1sums do not match for package %s-%s"),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
pm_errno = PM_ERR_PKG_INVALID;
retval = -1;
}
}
FREE(sha1sum);
return(retval);
}
/** Check the integrity (with md5) of a package from the sync cache.
* @param pkg package pointer
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_pkg_checkmd5sum(pmpkg_t *pkg)
{
char path[PATH_MAX];
struct stat buf;
char *md5sum = NULL;
alpm_list_t *i;
int retval = 0;
ALPM_LOG_FUNC;
ASSERT(pkg != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
/* We only inspect packages from sync repositories */
ASSERT(pkg->origin == PKG_FROM_CACHE, RET_ERR(PM_ERR_PKG_INVALID, -1));
ASSERT(pkg->data != handle->db_local, RET_ERR(PM_ERR_PKG_INVALID, -1));
/* Loop through the cache dirs until we find a matching file */
for(i = alpm_option_get_cachedirs(); i; i = alpm_list_next(i)) {
snprintf(path, PATH_MAX, "%s%s-%s" PKGEXT, (char*)alpm_list_getdata(i),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
if(stat(path, &buf) == 0) {
break;
}
}
md5sum = alpm_get_md5sum(path);
if(md5sum == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not get md5sum for package %s-%s"),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
pm_errno = PM_ERR_NOT_A_FILE;
retval = -1;
} else {
if(strcmp(md5sum, alpm_pkg_get_md5sum(pkg)) == 0) {
_alpm_log(PM_LOG_DEBUG, "md5sums for package %s-%s match",
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
} else {
_alpm_log(PM_LOG_ERROR, _("md5sums do not match for package %s-%s"),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
pm_errno = PM_ERR_PKG_INVALID;
retval = -1;
}
}
FREE(md5sum);
return(retval);
}
/** Compare versions.
* @param ver1 first version
* @param ver2 secont version
* @return postive, 0 or negative if ver1 is less, equal or more
* than ver2, respectively.
*/
int SYMEXPORT alpm_pkg_vercmp(const char *ver1, const char *ver2)
{
ALPM_LOG_FUNC;
return(_alpm_versioncmp(ver1, ver2));
}
/* internal */
static char *_supported_archs[] = {
"i586",
"i686",
"ppc",
"x86_64",
};
/**
* @brief Determine if a package name has -ARCH tacked on.
* @param pkgname name of the package to parse
* @return pointer to start of -ARCH text if it exists, else NULL
*/
char SYMEXPORT *alpm_pkg_name_hasarch(const char *pkgname)
{
/* TODO remove this when we transfer everything over to -ARCH
*
* this parsing sucks... it's done to support
* two package formats for the time being:
* package-name-foo-1.0.0-1-i686
* and
* package-name-bar-1.2.3-1
*/
size_t i = 0;
char *arch, *cmp, *p;
ALPM_LOG_FUNC;
if((p = strrchr(pkgname, '-'))) {
for(i=0; i < sizeof(_supported_archs)/sizeof(char*); ++i) {
cmp = p+1;
arch = _supported_archs[i];
/* whee, case insensitive compare */
while(*arch && *cmp && tolower(*arch++) == tolower(*cmp++)) ;
if(*arch || *cmp) {
continue;
}
return(p);
}
}
return(NULL);
}
const char SYMEXPORT *alpm_pkg_get_filename(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(!strlen(pkg->filename)) {
/* construct the file name, it's not in the desc file */
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
if(pkg->arch && strlen(pkg->arch) > 0) {
snprintf(pkg->filename, PKG_FILENAME_LEN, "%s-%s-%s" PKGEXT,
pkg->name, pkg->version, pkg->arch);
} else {
snprintf(pkg->filename, PKG_FILENAME_LEN, "%s-%s" PKGEXT,
pkg->name, pkg->version);
}
}
return pkg->filename;
}
const char SYMEXPORT *alpm_pkg_get_name(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_BASE)) {
_alpm_db_read(pkg->data, pkg, INFRQ_BASE);
}
return pkg->name;
}
const char SYMEXPORT *alpm_pkg_get_version(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_BASE)) {
_alpm_db_read(pkg->data, pkg, INFRQ_BASE);
}
return pkg->version;
}
const char SYMEXPORT *alpm_pkg_get_desc(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->desc;
}
const char SYMEXPORT *alpm_pkg_get_url(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->url;
}
const char SYMEXPORT *alpm_pkg_get_builddate(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->builddate;
}
const char SYMEXPORT *alpm_pkg_get_installdate(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->installdate;
}
const char SYMEXPORT *alpm_pkg_get_packager(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->packager;
}
const char SYMEXPORT *alpm_pkg_get_md5sum(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->md5sum;
}
const char SYMEXPORT *alpm_pkg_get_sha1sum(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->sha1sum;
}
const char SYMEXPORT *alpm_pkg_get_arch(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->arch;
}
unsigned long SYMEXPORT alpm_pkg_get_size(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
ASSERT(pkg != NULL, return(-1));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->size;
}
unsigned long SYMEXPORT alpm_pkg_get_isize(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
ASSERT(pkg != NULL, return(-1));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->isize;
}
pmpkgreason_t SYMEXPORT alpm_pkg_get_reason(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
ASSERT(pkg != NULL, return(-1));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->reason;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_licenses(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->licenses;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_groups(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->groups;
}
/* depends */
alpm_list_t SYMEXPORT *alpm_pkg_get_depends(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DEPENDS)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DEPENDS);
}
return pkg->depends;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_requiredby(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DEPENDS)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DEPENDS);
}
return pkg->requiredby;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_conflicts(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DEPENDS)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DEPENDS);
}
return pkg->conflicts;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_provides(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DEPENDS)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DEPENDS);
}
return pkg->provides;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_replaces(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && !(pkg->infolevel & INFRQ_DESC)) {
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
return pkg->replaces;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_files(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && pkg->data == handle->db_local
&& !(pkg->infolevel & INFRQ_FILES)) {
_alpm_db_read(pkg->data, pkg, INFRQ_FILES);
}
return pkg->files;
}
alpm_list_t SYMEXPORT *alpm_pkg_get_backup(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
ASSERT(pkg != NULL, return(NULL));
if(pkg->origin == PKG_FROM_CACHE && pkg->data == handle->db_local
&& !(pkg->infolevel & INFRQ_FILES)) {
_alpm_db_read(pkg->data, pkg, INFRQ_FILES);
}
return pkg->backup;
}
unsigned short SYMEXPORT alpm_pkg_has_scriptlet(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
ASSERT(pkg != NULL, return(-1));
if(pkg->origin == PKG_FROM_CACHE && pkg->data == handle->db_local
&& !(pkg->infolevel & INFRQ_SCRIPTLET)) {
_alpm_db_read(pkg->data, pkg, INFRQ_SCRIPTLET);
}
return pkg->scriptlet;
}
/** @} */
/* this function was taken from rpm 4.0.4 and rewritten */
int _alpm_versioncmp(const char *a, const char *b)
{
char str1[64], str2[64];
char *ptr1, *ptr2;
char *one, *two;
char *rel1 = NULL, *rel2 = NULL;
char oldch1, oldch2;
int is1num, is2num;
int rc;
ALPM_LOG_FUNC;
if(!strcmp(a,b)) {
return(0);
}
strncpy(str1, a, 64);
str1[63] = 0;
strncpy(str2, b, 64);
str2[63] = 0;
/* lose the release number */
for(one = str1; *one && *one != '-'; one++);
if(one) {
*one = '\0';
rel1 = ++one;
}
for(two = str2; *two && *two != '-'; two++);
if(two) {
*two = '\0';
rel2 = ++two;
}
one = str1;
two = str2;
while(*one || *two) {
while(*one && !isalnum((int)*one)) one++;
while(*two && !isalnum((int)*two)) two++;
ptr1 = one;
ptr2 = two;
/* find the next segment for each string */
if(isdigit((int)*ptr1)) {
is1num = 1;
while(*ptr1 && isdigit((int)*ptr1)) ptr1++;
} else {
is1num = 0;
while(*ptr1 && isalpha((int)*ptr1)) ptr1++;
}
if(isdigit((int)*ptr2)) {
is2num = 1;
while(*ptr2 && isdigit((int)*ptr2)) ptr2++;
} else {
is2num = 0;
while(*ptr2 && isalpha((int)*ptr2)) ptr2++;
}
oldch1 = *ptr1;
*ptr1 = '\0';
oldch2 = *ptr2;
*ptr2 = '\0';
/* see if we ran out of segments on one string */
if(one == ptr1 && two != ptr2) {
return(is2num ? -1 : 1);
}
if(one != ptr1 && two == ptr2) {
return(is1num ? 1 : -1);
}
/* see if we have a type mismatch (ie, one is alpha and one is digits) */
if(is1num && !is2num) return(1);
if(!is1num && is2num) return(-1);
if(is1num) while(*one == '0') one++;
if(is2num) while(*two == '0') two++;
rc = strverscmp(one, two);
if(rc) return(rc);
*ptr1 = oldch1;
*ptr2 = oldch2;
one = ptr1;
two = ptr2;
}
if((!*one) && (!*two)) {
/* compare release numbers */
if(rel1 && rel2 && strlen(rel1) && strlen(rel2)) return(_alpm_versioncmp(rel1, rel2));
return(0);
}
return(*one ? 1 : -1);
}
pmpkg_t *_alpm_pkg_new(const char *name, const char *version)
{
pmpkg_t* pkg;
ALPM_LOG_FUNC;
if((pkg = calloc(1,sizeof(pmpkg_t))) == NULL) {
RET_ERR(PM_ERR_MEMORY, NULL);
}
if(name && name[0] != 0) {
strncpy(pkg->name, name, PKG_NAME_LEN);
} else {
pkg->name[0] = '\0';
}
if(version && version[0] != 0) {
strncpy(pkg->version, version, PKG_VERSION_LEN);
} else {
pkg->version[0] = '\0';
}
return(pkg);
}
pmpkg_t *_alpm_pkg_dup(pmpkg_t *pkg)
{
pmpkg_t* newpkg;
ALPM_LOG_FUNC;
if((newpkg = calloc(1, sizeof(pmpkg_t))) == NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmpkg_t));
RET_ERR(PM_ERR_MEMORY, NULL);
}
memcpy(newpkg, pkg, sizeof(pmpkg_t));
newpkg->licenses = alpm_list_strdup(alpm_pkg_get_licenses(pkg));
newpkg->requiredby = alpm_list_strdup(alpm_pkg_get_requiredby(pkg));
newpkg->conflicts = alpm_list_strdup(alpm_pkg_get_conflicts(pkg));
newpkg->files = alpm_list_strdup(alpm_pkg_get_files(pkg));
newpkg->backup = alpm_list_strdup(alpm_pkg_get_backup(pkg));
newpkg->depends = alpm_list_strdup(alpm_pkg_get_depends(pkg));
newpkg->groups = alpm_list_strdup(alpm_pkg_get_groups(pkg));
newpkg->provides = alpm_list_strdup(alpm_pkg_get_provides(pkg));
newpkg->replaces = alpm_list_strdup(alpm_pkg_get_replaces(pkg));
/* internal */
newpkg->data = (newpkg->origin == PKG_FROM_FILE) ? strdup(pkg->data) : pkg->data;
return(newpkg);
}
void _alpm_pkg_free(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
if(pkg == NULL) {
return;
}
FREELIST(pkg->licenses);
FREELIST(pkg->files);
FREELIST(pkg->backup);
FREELIST(pkg->depends);
FREELIST(pkg->conflicts);
FREELIST(pkg->requiredby);
FREELIST(pkg->groups);
FREELIST(pkg->provides);
FREELIST(pkg->replaces);
if(pkg->origin == PKG_FROM_FILE) {
FREE(pkg->data);
}
FREE(pkg);
}
/* Is pkgB an upgrade for pkgA ? */
int alpm_pkg_compare_versions(pmpkg_t *local_pkg, pmpkg_t *pkg)
{
int cmp = 0;
ALPM_LOG_FUNC;
if(pkg->origin == PKG_FROM_CACHE) {
/* ensure we have the /desc file, which contains the 'force' option */
_alpm_db_read(pkg->data, pkg, INFRQ_DESC);
}
/* compare versions and see if we need to upgrade */
cmp = _alpm_versioncmp(alpm_pkg_get_version(pkg), alpm_pkg_get_version(local_pkg));
if(alpm_list_find_str(handle->ignorepkg, alpm_pkg_get_name(pkg))) {
/* package should be ignored (IgnorePkg) */
if(cmp > 0) {
_alpm_log(PM_LOG_WARNING, _("%s-%s: ignoring package upgrade (%s)"),
alpm_pkg_get_name(local_pkg), alpm_pkg_get_version(local_pkg),
alpm_pkg_get_version(pkg));
}
return(0);
}
if(cmp != 0 && pkg->force) {
cmp = 1;
_alpm_log(PM_LOG_WARNING, _("%s: forcing upgrade to version %s"),
alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg));
} else if(cmp < 0) {
/* local version is newer */
pmdb_t *db = pkg->data;
_alpm_log(PM_LOG_WARNING, _("%s: local (%s) is newer than %s (%s)"),
alpm_pkg_get_name(local_pkg), alpm_pkg_get_version(local_pkg),
alpm_db_get_name(db), alpm_pkg_get_version(pkg));
cmp = 0;
} else if(cmp > 0) {
/* we have an upgrade, make sure we should actually do it */
if(_alpm_pkg_istoonew(pkg)) {
/* package too new (UpgradeDelay) */
_alpm_log(PM_LOG_WARNING, _("%s-%s: delaying upgrade of package (%s)"),
alpm_pkg_get_name(local_pkg), alpm_pkg_get_version(local_pkg),
alpm_pkg_get_version(pkg));
cmp = 0;
}
}
return(cmp);
}
/* Helper function for comparing packages
*/
int _alpm_pkg_cmp(const void *p1, const void *p2)
{
pmpkg_t *pk1 = (pmpkg_t *)p1;
pmpkg_t *pk2 = (pmpkg_t *)p2;
return(strcmp(alpm_pkg_get_name(pk1), alpm_pkg_get_name(pk2)));
}
/* Parses the package description file for the current package
* TODO: this should ALL be in a backend interface (be_files), we should
* be dealing with the abstracted concepts only in this file
* Returns: 0 on success, 1 on error
*
*/
static int parse_descfile(const char *descfile, pmpkg_t *info)
{
FILE* fp = NULL;
char line[PATH_MAX];
char *ptr = NULL;
char *key = NULL;
int linenum = 0;
ALPM_LOG_FUNC;
if((fp = fopen(descfile, "r")) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not open file %s: %s"), descfile, strerror(errno));
return(-1);
}
while(!feof(fp)) {
fgets(line, PATH_MAX, fp);
linenum++;
_alpm_strtrim(line);
if(strlen(line) == 0 || line[0] == '#') {
continue;
}
ptr = line;
key = strsep(&ptr, "=");
if(key == NULL || ptr == NULL) {
_alpm_log(PM_LOG_DEBUG, "%s: syntax error in description file line %d",
info->name[0] != '\0' ? info->name : "error", linenum);
} else {
_alpm_strtrim(key);
key = _alpm_strtoupper(key);
_alpm_strtrim(ptr);
if(!strcmp(key, "PKGNAME")) {
strncpy(info->name, ptr, sizeof(info->name));
} else if(!strcmp(key, "PKGVER")) {
strncpy(info->version, ptr, sizeof(info->version));
} else if(!strcmp(key, "PKGDESC")) {
strncpy(info->desc, ptr, sizeof(info->desc));
} else if(!strcmp(key, "GROUP")) {
info->groups = alpm_list_add(info->groups, strdup(ptr));
} else if(!strcmp(key, "URL")) {
strncpy(info->url, ptr, sizeof(info->url));
} else if(!strcmp(key, "LICENSE")) {
info->licenses = alpm_list_add(info->licenses, strdup(ptr));
} else if(!strcmp(key, "BUILDDATE")) {
strncpy(info->builddate, ptr, sizeof(info->builddate));
} else if(!strcmp(key, "INSTALLDATE")) {
strncpy(info->installdate, ptr, sizeof(info->installdate));
} else if(!strcmp(key, "PACKAGER")) {
strncpy(info->packager, ptr, sizeof(info->packager));
} else if(!strcmp(key, "ARCH")) {
strncpy(info->arch, ptr, sizeof(info->arch));
} else if(!strcmp(key, "SIZE")) {
/* size in the raw package is uncompressed (installed) size */
info->isize = atol(ptr);
} else if(!strcmp(key, "DEPEND")) {
info->depends = alpm_list_add(info->depends, strdup(ptr));
} else if(!strcmp(key, "CONFLICT")) {
info->conflicts = alpm_list_add(info->conflicts, strdup(ptr));
} else if(!strcmp(key, "REPLACES")) {
info->replaces = alpm_list_add(info->replaces, strdup(ptr));
} else if(!strcmp(key, "PROVIDES")) {
info->provides = alpm_list_add(info->provides, strdup(ptr));
} else if(!strcmp(key, "BACKUP")) {
info->backup = alpm_list_add(info->backup, strdup(ptr));
} else {
_alpm_log(PM_LOG_DEBUG, "%s: syntax error in description file line %d",
info->name[0] != '\0' ? info->name : "error", linenum);
}
}
line[0] = '\0';
}
fclose(fp);
unlink(descfile);
return(0);
}
pmpkg_t *_alpm_pkg_load(const char *pkgfile)
{
char *expath;
int ret = ARCHIVE_OK;
int config = 0;
int filelist = 0;
int scriptcheck = 0;
struct archive *archive;
struct archive_entry *entry;
pmpkg_t *info = NULL;
char *descfile = NULL;
int fd = -1;
alpm_list_t *all_files = NULL;
struct stat st;
ALPM_LOG_FUNC;
if(pkgfile == NULL || strlen(pkgfile) == 0) {
RET_ERR(PM_ERR_WRONG_ARGS, NULL);
}
if((archive = archive_read_new()) == NULL) {
RET_ERR(PM_ERR_LIBARCHIVE_ERROR, NULL);
}
archive_read_support_compression_all(archive);
archive_read_support_format_all(archive);
if (archive_read_open_file(archive, pkgfile, ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
RET_ERR(PM_ERR_PKG_OPEN, NULL);
}
info = _alpm_pkg_new(NULL, NULL);
if(info == NULL) {
archive_read_finish(archive);
RET_ERR(PM_ERR_MEMORY, NULL);
}
if(stat(pkgfile, &st) == 0) {
info->size = st.st_size;
}
/* TODO there is no reason to make temp files to read
* from a libarchive archive, it can be done by reading
* directly from the archive
* See: archive_read_data_into_buffer
* requires changes 'parse_descfile' as well
* */
/* Read through the entire archive for metadata. We will continue reading
* even if all metadata is found, to verify the integrity of the archive in
* full */
while((ret = archive_read_next_header (archive, &entry)) == ARCHIVE_OK) {
const char *entry_name = archive_entry_pathname(entry);
if(strcmp(entry_name, ".PKGINFO") == 0) {
/* extract this file into /tmp. it has info for us */
descfile = strdup("/tmp/alpm_XXXXXX");
fd = mkstemp(descfile);
archive_read_data_into_fd (archive, fd);
/* parse the info file */
if(parse_descfile(descfile, info) == -1) {
_alpm_log(PM_LOG_ERROR, _("could not parse the package description file"));
goto pkg_invalid;
}
if(!strlen(info->name)) {
_alpm_log(PM_LOG_ERROR, _("missing package name in %s"), pkgfile);
goto pkg_invalid;
}
if(!strlen(info->version)) {
_alpm_log(PM_LOG_ERROR, _("missing package version in %s"), pkgfile);
goto pkg_invalid;
}
config = 1;
unlink(descfile);
FREE(descfile);
close(fd);
continue;
} else if(strcmp(entry_name, ".INSTALL") == 0) {
info->scriptlet = 1;
scriptcheck = 1;
} else if(strcmp(entry_name, ".FILELIST") == 0) {
/* Build info->files from the filelist */
FILE *fp;
char *fn;
char *str;
int fd;
if((str = malloc(PATH_MAX)) == NULL) {
RET_ERR(PM_ERR_MEMORY, (pmpkg_t *)-1);
}
fn = strdup("/tmp/alpm_XXXXXX");
fd = mkstemp(fn);
archive_read_data_into_fd(archive,fd);
fp = fopen(fn, "r");
while(!feof(fp)) {
if(fgets(str, PATH_MAX, fp) == NULL) {
continue;
}
_alpm_strtrim(str);
info->files = alpm_list_add(info->files, strdup(str));
}
FREE(str);
fclose(fp);
if(unlink(fn)) {
_alpm_log(PM_LOG_WARNING, _("could not remove tempfile %s"), fn);
}
FREE(fn);
close(fd);
filelist = 1;
continue;
} else if(*entry_name == '.') {
/* for now, ignore all files starting with '.' that haven't
* already been handled (for future possibilities) */
} else {
scriptcheck = 1;
/* Keep track of all files so we can generate a filelist later if missing */
all_files = alpm_list_add(all_files, strdup(entry_name));
}
if(archive_read_data_skip(archive)) {
_alpm_log(PM_LOG_ERROR, _("error while reading package: %s"), archive_error_string(archive));
pm_errno = PM_ERR_LIBARCHIVE_ERROR;
goto error;
}
expath = NULL;
}
if(ret != ARCHIVE_EOF) { /* An error occured */
_alpm_log(PM_LOG_ERROR, _("error while reading package: %s"), archive_error_string(archive));
pm_errno = PM_ERR_LIBARCHIVE_ERROR;
goto error;
}
if(!config) {
_alpm_log(PM_LOG_ERROR, _("missing package metadata"), pkgfile);
goto error;
}
archive_read_finish(archive);
if(!filelist) {
_alpm_log(PM_LOG_ERROR, _("missing package filelist in %s, generating one"), pkgfile);
info->files = all_files;
} else {
alpm_list_free_inner(all_files, free);
alpm_list_free(all_files);
}
/* this is IMPORTANT - "checking for conflicts" requires a sorted list, so we
* ensure that here */
info->files = alpm_list_msort(info->files, alpm_list_count(info->files), _alpm_str_cmp);
/* internal */
info->origin = PKG_FROM_FILE;
info->data = strdup(pkgfile);
info->infolevel = 0xFF;
return(info);
pkg_invalid:
pm_errno = PM_ERR_PKG_INVALID;
if(descfile) {
unlink(descfile);
FREE(descfile);
}
if(fd != -1) {
close(fd);
}
error:
_alpm_pkg_free(info);
archive_read_finish(archive);
return(NULL);
}
/* Test for existence of a package in a alpm_list_t*
* of pmpkg_t*
*/
pmpkg_t *_alpm_pkg_find(const char *needle, alpm_list_t *haystack)
{
alpm_list_t *lp;
ALPM_LOG_FUNC;
if(needle == NULL || haystack == NULL) {
return(NULL);
}
for(lp = haystack; lp; lp = lp->next) {
pmpkg_t *info = lp->data;
if(info && strcmp(alpm_pkg_get_name(info), needle) == 0) {
return(info);
}
}
return(NULL);
}
int _alpm_pkg_splitname(const char *target, char *name, char *version, int witharch)
{
char tmp[PKG_FULLNAME_LEN+7];
const char *t;
char *p, *q;
ALPM_LOG_FUNC;
if(target == NULL) {
return(-1);
}
/* trim path name (if any) */
if((t = strrchr(target, '/')) == NULL) {
t = target;
} else {
t++;
}
strncpy(tmp, t, PKG_FULLNAME_LEN+7);
/* trim file extension (if any) */
if((p = strstr(tmp, PKGEXT))) {
*p = '\0';
}
if(witharch) {
/* trim architecture */
if((p = alpm_pkg_name_hasarch(tmp))) {
*p = '\0';
}
}
p = tmp + strlen(tmp);
for(q = --p; *q && *q != '-'; q--);
if(*q != '-' || q == tmp) {
return(-1);
}
for(p = --q; *p && *p != '-'; p--);
if(*p != '-' || p == tmp) {
return(-1);
}
if(version) {
strncpy(version, p+1, PKG_VERSION_LEN);
}
*p = '\0';
if(name) {
strncpy(name, tmp, PKG_NAME_LEN);
}
return(0);
}
/* scan the local db to fill in requiredby field of package,
* used when we want to install or add a package */
void _alpm_pkg_update_requiredby(pmpkg_t *pkg)
{
const alpm_list_t *i, *j;
pmdb_t *localdb = alpm_option_get_localdb();
for(i = _alpm_db_get_pkgcache(localdb); i; i = i->next) {
if(!i->data) {
continue;
}
pmpkg_t *cachepkg = i->data;
const char *cachepkgname = alpm_pkg_get_name(cachepkg);
for(j = alpm_pkg_get_depends(cachepkg); j; j = j->next) {
pmdepend_t *dep;
int satisfies;
if(!j->data) {
continue;
}
dep = alpm_splitdep(j->data);
if(dep == NULL) {
continue;
}
satisfies = alpm_depcmp(pkg, dep);
free(dep);
if(satisfies) {
alpm_list_t *reqs = alpm_pkg_get_requiredby(pkg);
_alpm_log(PM_LOG_DEBUG, "adding '%s' in requiredby field for '%s'",
cachepkgname, pkg->name);
reqs = alpm_list_add(reqs, strdup(cachepkgname));
pkg->requiredby = reqs;
break;
}
}
}
}
/* TODO this should either be public, or done somewhere else */
int _alpm_pkg_istoonew(pmpkg_t *pkg)
{
time_t t;
ALPM_LOG_FUNC;
if (!handle->upgradedelay)
return 0;
time(&t);
return((pkg->date + handle->upgradedelay) > t);
}
/* vim: set ts=2 sw=2 noet: */
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