be_local.c File Reference

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdint.h>
#include <sys/stat.h>
#include <dirent.h>
#include <limits.h>
#include <archive.h>
#include <archive_entry.h>
#include "db.h"
#include "alpm_list.h"
#include "libarchive-compat.h"
#include "log.h"
#include "util.h"
#include "alpm.h"
#include "handle.h"
#include "package.h"
#include "deps.h"
#include "filelist.h"

Include dependency graph for be_local.c:

Macros
#define	LAZY_LOAD(info)
#define	READ_NEXT()
#define	READ_AND_STORE(f)
#define	READ_AND_STORE_ALL(f)
#define	READ_AND_SPLITDEP(f)

Functions
static int	local_db_read (alpm_pkg_t *info, int inforeq)
static const char *	_cache_get_base (alpm_pkg_t *pkg)
static const char *	_cache_get_desc (alpm_pkg_t *pkg)
static const char *	_cache_get_url (alpm_pkg_t *pkg)
static alpm_time_t	_cache_get_builddate (alpm_pkg_t *pkg)
static alpm_time_t	_cache_get_installdate (alpm_pkg_t *pkg)
static const char *	_cache_get_packager (alpm_pkg_t *pkg)
static const char *	_cache_get_arch (alpm_pkg_t *pkg)
static off_t	_cache_get_isize (alpm_pkg_t *pkg)
static alpm_pkgreason_t	_cache_get_reason (alpm_pkg_t *pkg)
static int	_cache_get_validation (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_licenses (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_groups (alpm_pkg_t *pkg)
static int	_cache_has_scriptlet (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_depends (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_optdepends (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_makedepends (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_checkdepends (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_conflicts (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_provides (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_replaces (alpm_pkg_t *pkg)
static alpm_filelist_t *	_cache_get_files (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_backup (alpm_pkg_t *pkg)
static alpm_list_t *	_cache_get_xdata (alpm_pkg_t *pkg)
static void *	_cache_changelog_open (alpm_pkg_t *pkg)
	Open a package changelog for reading.
static size_t	_cache_changelog_read (void *ptr, size_t size, const alpm_pkg_t UNUSED *pkg, void *fp)
	Read data from an open changelog 'file stream'.
static int	_cache_changelog_close (const alpm_pkg_t UNUSED *pkg, void *fp)
	Close a package changelog for reading.
static struct archive *	_cache_mtree_open (alpm_pkg_t *pkg)
	Open a package mtree file for reading.
static int	_cache_mtree_next (const alpm_pkg_t UNUSED *pkg, struct archive *mtree, struct archive_entry **entry)
	Read next entry from a package mtree file.
static int	_cache_mtree_close (const alpm_pkg_t UNUSED *pkg, struct archive *mtree)
	Close a package mtree file for reading.
static int	_cache_force_load (alpm_pkg_t *pkg)
static int	checkdbdir (alpm_db_t *db)
static int	is_dir (const char *path, struct dirent *entry)
static int	local_db_add_version (alpm_db_t UNUSED *db, const char *dbpath)
static int	local_db_create (alpm_db_t *db, const char *dbpath)
static int	local_db_validate (alpm_db_t *db)
static int	local_db_populate (alpm_db_t *db)
static alpm_pkgreason_t	_read_pkgreason (alpm_handle_t *handle, const char *pkgname, const char *line)
static void	write_deps (FILE *fp, const char *header, alpm_list_t *deplist)
int	alpm_pkg_set_reason (alpm_pkg_t *pkg, alpm_pkgreason_t reason)
	Set install reason for a package in the local database.

Variables
size_t	ALPM_LOCAL_DB_VERSION = 9
static const struct pkg_operations	local_pkg_ops
	The local database operations struct.
static const struct db_operations	local_db_ops

Macro Definition Documentation

LAZY_LOAD

#define LAZY_LOAD

(

info

)

Value:

    do { \
        if(!(pkg->infolevel & info)) { \
            local_db_read(pkg, info); \
        } \
    } while(0)

Referenced by _cache_get_arch(), _cache_get_backup(), _cache_get_base(), _cache_get_builddate(), _cache_get_checkdepends(), _cache_get_conflicts(), _cache_get_depends(), _cache_get_desc(), _cache_get_files(), _cache_get_groups(), _cache_get_installdate(), _cache_get_isize(), _cache_get_licenses(), _cache_get_makedepends(), _cache_get_optdepends(), _cache_get_packager(), _cache_get_provides(), _cache_get_reason(), _cache_get_replaces(), _cache_get_url(), _cache_get_validation(), _cache_get_xdata(), and _cache_has_scriptlet().

READ_AND_SPLITDEP

#define READ_AND_SPLITDEP

(

f

)

Value:

    do { \
    if(safe_fgets(line, sizeof(line), fp) == NULL) {\
        if(!feof(fp)) goto error; else break; \
    } \
    if(_alpm_strip_newline(line, 0) == 0) break; \
    f = alpm_list_add(f, alpm_dep_from_string(line)); \
} while(1) /* note the while(1) and not (0) */

Referenced by local_db_read().

READ_AND_STORE

#define READ_AND_STORE

(

f

)

Value:

    do { \
    READ_NEXT(); \
    STRDUP(f, line, goto error); \
} while(0)

Referenced by local_db_read().

READ_AND_STORE_ALL

#define READ_AND_STORE_ALL

(

f

)

Value:

    do { \
    char *linedup; \
    if(safe_fgets(line, sizeof(line), fp) == NULL) {\
        if(!feof(fp)) goto error; else break; \
    } \
    if(_alpm_strip_newline(line, 0) == 0) break; \
    STRDUP(linedup, line, goto error); \
    f = alpm_list_add(f, linedup); \
} while(1) /* note the while(1) and not (0) */

Referenced by local_db_read().

READ_NEXT

#define READ_NEXT

(

)

Value:

    do { \
    if(safe_fgets(line, sizeof(line), fp) == NULL && !feof(fp)) goto error; \
    _alpm_strip_newline(line, 0); \
} while(0)

Referenced by local_db_read().

Function Documentation

_cache_changelog_close()

static int _cache_changelog_close ( const alpm_pkg_t UNUSED * pkg, void * fp )

static

Close a package changelog for reading.

Similar to fclose in functionality, except that the 'file stream' is from the database.

Parameters

pkg	the package that the changelog was read from
fp	a 'file stream' to the package changelog

Returns

whether closing the package changelog stream was successful

_cache_changelog_open()

static void * _cache_changelog_open ( alpm_pkg_t * pkg )

static

Open a package changelog for reading.

Similar to fopen in functionality, except that the returned 'file stream' is from the database.

Parameters

pkg	the package (from db) to read the changelog

Returns

a 'file stream' to the package changelog

References alpm_pkg_get_db().

_cache_changelog_read()

static size_t _cache_changelog_read ( void * ptr, size_t size, const alpm_pkg_t UNUSED * pkg, void * fp )

static

Read data from an open changelog 'file stream'.

Similar to fread in functionality, this function takes a buffer and amount of data to read.

Parameters

ptr	a buffer to fill with raw changelog data
size	the size of the buffer
pkg	the package that the changelog is being read from
fp	a 'file stream' to the package changelog

Returns

the number of characters read, or 0 if there is no more data

_cache_force_load()

static int _cache_force_load ( alpm_pkg_t * pkg )

static

References INFRQ_ALL, and local_db_read().

_cache_get_arch()

static const char * _cache_get_arch ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_backup()

static alpm_list_t * _cache_get_backup ( alpm_pkg_t * pkg )

static

References INFRQ_FILES, and LAZY_LOAD.

_cache_get_base()

static const char * _cache_get_base ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_builddate()

static alpm_time_t _cache_get_builddate ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_checkdepends()

static alpm_list_t * _cache_get_checkdepends ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_conflicts()

static alpm_list_t * _cache_get_conflicts ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_depends()

static alpm_list_t * _cache_get_depends ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_desc()

static const char * _cache_get_desc ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_files()

static alpm_filelist_t * _cache_get_files ( alpm_pkg_t * pkg )

static

References INFRQ_FILES, and LAZY_LOAD.

_cache_get_groups()

static alpm_list_t * _cache_get_groups ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_installdate()

static alpm_time_t _cache_get_installdate ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_isize()

static off_t _cache_get_isize ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_licenses()

static alpm_list_t * _cache_get_licenses ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_makedepends()

static alpm_list_t * _cache_get_makedepends ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_optdepends()

static alpm_list_t * _cache_get_optdepends ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_packager()

static const char * _cache_get_packager ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_provides()

static alpm_list_t * _cache_get_provides ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_reason()

static alpm_pkgreason_t _cache_get_reason ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_replaces()

static alpm_list_t * _cache_get_replaces ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_url()

static const char * _cache_get_url ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_validation()

static int _cache_get_validation ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_get_xdata()

static alpm_list_t * _cache_get_xdata ( alpm_pkg_t * pkg )

static

References INFRQ_DESC, and LAZY_LOAD.

_cache_has_scriptlet()

static int _cache_has_scriptlet ( alpm_pkg_t * pkg )

static

References INFRQ_SCRIPTLET, and LAZY_LOAD.

_cache_mtree_close()

static int _cache_mtree_close ( const alpm_pkg_t UNUSED * pkg, struct archive * mtree )

static

Close a package mtree file for reading.

Parameters

pkg	the package that the mtree file was read from
mtree	the archive structure use for reading from the mtree file

Returns

whether closing the package changelog stream was successful

_cache_mtree_next()

static int _cache_mtree_next ( const alpm_pkg_t UNUSED * pkg, struct archive * mtree, struct archive_entry ** entry )

static

Read next entry from a package mtree file.

Parameters

pkg	the package that the mtree file is being read from
archive	the archive structure reading from the mtree file
entry	an archive_entry to store the entry header information

Returns

0 on success, 1 if end of archive is reached, -1 otherwise.

_cache_mtree_open()

static struct archive * _cache_mtree_open ( alpm_pkg_t * pkg )

static

Open a package mtree file for reading.

Parameters

pkg	the local package to read the changelog of

Returns

a archive structure for the package mtree file

References _, ALPM_BUFFER_SIZE, ALPM_ERR_LIBARCHIVE, ALPM_LOG_ERROR, alpm_pkg_get_db(), error, and GOTO_ERR.

_read_pkgreason()

static alpm_pkgreason_t _read_pkgreason ( alpm_handle_t * handle, const char * pkgname, const char * line )

static

References _, ALPM_LOG_ERROR, ALPM_PKG_REASON_DEPEND, ALPM_PKG_REASON_EXPLICIT, and ALPM_PKG_REASON_UNKNOWN.

Referenced by local_db_read().

checkdbdir()

static int checkdbdir ( alpm_db_t * db )

static

References _, ALPM_ERR_SYSTEM, ALPM_LOG_DEBUG, ALPM_LOG_WARNING, and RET_ERR.

is_dir()

static int is_dir ( const char * path, struct dirent * entry )

static

Referenced by dir_belongsto_pkgs(), and local_db_populate().

local_db_add_version()

static int local_db_add_version ( alpm_db_t UNUSED * db, const char * dbpath )

static

References ALPM_LOCAL_DB_VERSION.

Referenced by local_db_create(), and local_db_validate().

local_db_create()

static int local_db_create ( alpm_db_t * db, const char * dbpath )

static

References _, ALPM_ERR_DB_CREATE, ALPM_LOG_ERROR, local_db_add_version(), and RET_ERR.

Referenced by local_db_validate().

local_db_populate()

static int local_db_populate ( alpm_db_t * db )

static

References _, ALPM_ERR_DB_INVALID, ALPM_ERR_DB_NOT_FOUND, ALPM_ERR_DB_OPEN, ALPM_ERR_MEMORY, alpm_list_msort(), ALPM_LOG_DEBUG, ALPM_LOG_ERROR, ALPM_LOG_FUNCTION, ALPM_PKG_FROM_LOCALDB, DB_STATUS_EXISTS, DB_STATUS_INVALID, DB_STATUS_MISSING, INFRQ_BASE, is_dir(), local_db_read(), local_pkg_ops, and RET_ERR.

local_db_read()

static int local_db_read ( alpm_pkg_t * info, int inforeq )

static

References _, _read_pkgreason(), alpm_list_add(), alpm_list_append(), alpm_list_next(), ALPM_LOG_ERROR, ALPM_LOG_FUNCTION, ALPM_LOG_WARNING, ALPM_PKG_VALIDATION_MD5SUM, ALPM_PKG_VALIDATION_NONE, ALPM_PKG_VALIDATION_SHA256SUM, ALPM_PKG_VALIDATION_SIGNATURE, CALLOC, alpm_list_t::data, error, FREE, FREELIST, INFRQ_DESC, INFRQ_ERROR, INFRQ_FILES, INFRQ_SCRIPTLET, MALLOC, alpm_list_t::next, READ_AND_SPLITDEP, READ_AND_STORE, READ_AND_STORE_ALL, READ_NEXT, and REALLOC.

Referenced by _cache_force_load(), and local_db_populate().

local_db_validate()

static int local_db_validate ( alpm_db_t * db )

static

References ALPM_ERR_DB_OPEN, ALPM_ERR_DB_VERSION, ALPM_LOCAL_DB_VERSION, DB_STATUS_EXISTS, DB_STATUS_INVALID, DB_STATUS_MISSING, DB_STATUS_VALID, local_db_add_version(), local_db_create(), and RET_ERR.

write_deps()

static void write_deps ( FILE * fp, const char * header, alpm_list_t * deplist )

static

References alpm_dep_compute_string(), alpm_list_t::data, and alpm_list_t::next.

Variable Documentation

ALPM_LOCAL_DB_VERSION

size_t ALPM_LOCAL_DB_VERSION = 9

Referenced by local_db_add_version(), and local_db_validate().

local_db_ops

const struct db_operations local_db_ops

static

Initial value:

= {
    .validate         = local_db_validate,
    .populate         = local_db_populate,
    .unregister       = _alpm_db_unregister,
}

local_pkg_ops

const struct pkg_operations local_pkg_ops

static

The local database operations struct.

Get package fields through lazy accessor methods that handle any backend loading and caching logic.

Referenced by local_db_populate().