File state machine to handle a payload from a package. More...

#include "system.h"
#include <rpmio_internal.h>
#include <rpmcb.h>
#include <ugid.h>
#include <rpmsq.h>
#include <rpmsw.h>
#include <rpmsx.h>
#include "../rpmdb/rpmtag.h"
#include <iosm.h>
#include "cpio.h"
#include "tar.h"
#include "ar.h"
#include "../lib/rpmfi.h"
#include "debug.h"

Include dependency graph for iosm.c:

Go to the source code of this file.

Data Structures
struct	dnli_s
	Directory name iterator. More...

Macros
#define	_IOSM_INTERNAL
#define	iosmUNSAFE iosmStage
#define	_RPMFI_INTERNAL
#define	_RPMFI_NOMETHODS
#define	alloca_strdup(_s) strcpy((char *)alloca(strlen(_s)+1), (_s))
#define	_IOSM_DEBUG 0
#define	SUFFIX_RPMORIG ".rpmorig"
#define	SUFFIX_RPMSAVE ".rpmsave"
#define	SUFFIX_RPMNEW ".rpmnew"
#define	IS_DEV_LOG(_x)
#define	_fafilter(_a)
#define	IOSM_SKIPPING(_a) ((_a) == FA_SKIP \|\| (_a) == FA_SKIPNSTATE \|\| (_a) == FA_SKIPNETSHARED \|\| (_a) == FA_SKIPCOLOR)

Typedefs
typedef struct rpmts_s *	rpmts
typedef struct rpmte_s *	rpmte
typedef iosmMapFlags	cpioMapFlags
typedef struct rpmds_s *	rpmds
typedef struct rpmRelocation_s *	rpmRelocation
typedef struct rpmdb_s *	rpmdb
typedef struct rpmmi_s *	rpmmi
typedef struct rpmPRCO_s *	rpmPRCO
typedef struct Spec_s *	Spec
typedef struct dnli_s *	DNLI_t
	Directory name iterator.

Functions
void *	iosmGetFi (const IOSM_t iosm)
	Retrieve transaction element file info from I/O state machine iterator.
static const char *	iosmFsPath (const IOSM_t iosm, const struct stat st, const char subdir, const char *suffix)
	Build path to file from file info, ornamented with subdir and suffix.
static void *	mapFreeIterator (void *_iter)
	Destroy file info iterator.
static void *	mapInitIterator (rpmfi fi, int reverse)
	Create file info iterator.
static int	mapNextIterator (void *_iter)
	Return next index into file info.
static int	iosmStrCmp (const void a, const void b)
static int	mapFind (IOSMI_t iter, const char *iosmPath)
	Locate archive path in file info.
static void *	dnlFreeIterator (const void *_dnli)
	Destroy directory name iterator.
static int	dnlCount (const DNLI_t dnli)
static int	dnlIndex (const DNLI_t dnli)
static void *	dnlInitIterator (const IOSM_t iosm, int reverse)
	Create directory name iterator.
static const char *	dnlNextIterator (DNLI_t dnli)
	Return next directory name (from file info).
int	iosmNext (IOSM_t iosm, iosmFileStage nstage)
	File state machine driver.
static int	saveHardLink (IOSM_t iosm)
	Save hard link in chain.
static void *	freeHardLink (struct hardLink_s *li)
	Destroy set of hard links.
IOSM_t	newIOSM (void)
	Create I/O state machine instance.
IOSM_t	freeIOSM (IOSM_t iosm)
	Destroy I/O state machine instance.
static int	arSetup (IOSM_t iosm, rpmfi fi)
int	iosmSetup (IOSM_t iosm, iosmFileStage goal, const char afmt, const void _ts, const void _fi, FD_t cfd, unsigned int archiveSize, const char **failedFile)
	Load external data into I/O state machine.
int	iosmTeardown (IOSM_t iosm)
	Clean I/O state machine.
static int	iosmMapFContext (IOSM_t iosm)
int	iosmMapPath (IOSM_t iosm)
	Map next file path and action.
int	iosmMapAttrs (IOSM_t iosm)
	Map file stat(2) info.
static int	extractRegular (IOSM_t iosm)
	Create file from payload stream.
static int	writeFile (IOSM_t iosm, int writeData)
	Write next item to payload stream.
static int	writeLinkedFile (IOSM_t iosm)
	Write set of linked files to payload stream.
static int	iosmMakeLinks (IOSM_t iosm)
	Create pending hard links to existing file.
static int	iosmCommitLinks (IOSM_t iosm)
	Commit hard linked file set atomically.
static int	iosmRmdirs (IOSM_t iosm)
	Remove (if created) directories not explicitly included in package.
static int	iosmMkdirs (IOSM_t iosm)
	Create (if necessary) directories not explicitly included in package.
int	iosmStage (IOSM_t iosm, iosmFileStage stage)
	File state machine driver.
int	iosmFileActionSkipped (iosmFileAction action)
	Is the file going to be skipped?
const char *	iosmFileActionString (iosmFileAction a)
	Return formatted string representation of file disposition.
const char *	iosmFileStageString (iosmFileStage a)
	Return formatted string representation of file stages.
char *	iosmStrerror (int rc)
	Return formatted error message on payload handling failure.

Variables
int	_iosm_debug = 0
int	_iosm_threads = 0
int(*	_iosmNext )(IOSM_t iosm, iosmFileStage nstage) = &iosmNext
	Vector to iosmNext.

Detailed Description

File state machine to handle a payload from a package.

Definition in file iosm.c.

Macro Definition Documentation

#define _fafilter ( _a )

Value:

(!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \

? iosmFileActionString(_a) : "")

#define _IOSM_DEBUG 0

Definition at line 73 of file iosm.c.

#define _IOSM_INTERNAL

Definition at line 21 of file iosm.c.

#define _RPMFI_INTERNAL

Definition at line 30 of file iosm.c.

#define _RPMFI_NOMETHODS

Definition at line 31 of file iosm.c.

Referenced by mapFind().

#define alloca_strdup ( _s ) strcpy((char *)alloca(strlen(_s)+1), (_s))

Definition at line 71 of file iosm.c.

#define IOSM_SKIPPING ( _a ) ((_a) == FA_SKIP || (_a) == FA_SKIPNSTATE || (_a) == FA_SKIPNETSHARED || (_a) == FA_SKIPCOLOR)

Definition at line 2669 of file iosm.c.

Referenced by iosmFileActionSkipped().

#define iosmUNSAFE iosmStage

Definition at line 23 of file iosm.c.

Referenced by iosmMakeLinks(), iosmMkdirs(), iosmSetup(), iosmStage(), iosmTeardown(), and writeFile().

#define IS_DEV_LOG ( _x )

Value:

((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
        !strncmp((_x), "/dev/log", sizeof("/dev/log")-1) && \
        ((_x)[sizeof("/dev/log")-1] == '\0' || \
         (_x)[sizeof("/dev/log")-1] == ';'))

Definition at line 1625 of file iosm.c.

Referenced by iosmStage().

#define SUFFIX_RPMNEW ".rpmnew"

Definition at line 107 of file iosm.c.

Referenced by iosmMapPath().

#define SUFFIX_RPMORIG ".rpmorig"

Definition at line 105 of file iosm.c.

Referenced by iosmMapPath().

#define SUFFIX_RPMSAVE ".rpmsave"

Definition at line 106 of file iosm.c.

Referenced by iosmMapPath().

Typedef Documentation

typedef iosmMapFlags cpioMapFlags

Definition at line 29 of file iosm.c.

typedef struct rpmdb_s* rpmdb

Definition at line 47 of file iosm.c.

typedef struct rpmds_s* rpmds

Definition at line 34 of file iosm.c.

typedef struct rpmmi_s* rpmmi

Definition at line 48 of file iosm.c.

typedef struct rpmPRCO_s* rpmPRCO

Definition at line 49 of file iosm.c.

typedef struct rpmRelocation_s* rpmRelocation

Definition at line 35 of file iosm.c.

typedef struct rpmte_s* rpmte

Definition at line 19 of file iosm.c.

typedef struct rpmts_s* rpmts

Definition at line 18 of file iosm.c.

typedef struct Spec_s* Spec

Definition at line 50 of file iosm.c.

Function Documentation

static int arSetup	(	IOSM_t	iosm,
		rpmfi	fi
	)

static

Definition at line 596 of file iosm.c.

References iosm_s::lmtab, iosm_s::lmtablen, iosm_s::lmtaboff, rpmfiBN(), rpmfiInit(), rpmfiNext(), stpcpy(), urlPath(), and xmalloc.

Referenced by fsmSetup(), and iosmSetup().

static int dnlCount ( const DNLI_t dnli )

inlinestatic

Definition at line 306 of file iosm.c.

References dnli_s::fi.

Referenced by iosmMkdirs(), and iosmRmdirs().

static void* dnlFreeIterator ( const void * _dnli )

static

Destroy directory name iterator.

Parameters

_dnli directory name iterator

Return values

NULL always

Definition at line 294 of file iosm.c.

References _free(), and dnli_s::active.

Referenced by iosmMkdirs(), and iosmRmdirs().

static int dnlIndex ( const DNLI_t dnli )

inlinestatic

Definition at line 314 of file iosm.c.

References dnli_s::isave.

Referenced by iosmMkdirs(), and iosmRmdirs().

static void* dnlInitIterator	(	const IOSM_t	iosm,
		int	reverse
	)

static

Create directory name iterator.

Parameters

iosm	file state machine data
reverse	traverse directory names in reverse order?

Returns: directory name iterator

Definition at line 328 of file iosm.c.

References dnli_s::active, D_, dnli_s::fi, dnli_s::i, iosmFileActionSkipped(), iosmGetFi(), reverse, dnli_s::reverse, rpmfiInit(), rpmfiNext(), rpmlog(), RPMLOG_DEBUG, urlPath(), and xcalloc().

Referenced by iosmMkdirs(), and iosmRmdirs().

static const char* dnlNextIterator ( DNLI_t dnli )

static

Return next directory name (from file info).

Parameters

dnli	directory name iterator

Returns: next directory name

Definition at line 426 of file iosm.c.

References dnli_s::active, dnli_s::fi, dnli_s::i, dnli_s::isave, and dnli_s::reverse.

Referenced by iosmMkdirs(), and iosmRmdirs().

static int extractRegular ( IOSM_t iosm )

static

Create file from payload stream.

Parameters

iosm	file state machine data

Returns: 0 on success

Definition at line 1028 of file iosm.c.

References _free(), iosm_s::digest, iosm_s::digestlen, fdFiniDigest(), iosm_s::fdigest, iosm_s::fdigestalgo, fdInitDigest(), Fflush(), Fileno(), IOSM_DREAD, IOSM_NOTIFY, IOSM_WCLOSE, IOSM_WOPEN, IOSM_WRITE, IOSMERR_DIGEST_MISMATCH, iosmNext(), iosm_s::sb, iosm_s::wfd, iosm_s::wrlen, iosm_s::wrnb, and iosm_s::wrsize.

Referenced by iosmStage().

static void* freeHardLink ( struct hardLink_s * li )

static

Destroy set of hard links.

Parameters

li	set of hard links

Returns: NULL always

Definition at line 564 of file iosm.c.

References _free(), hardLink_s::filex, and hardLink_s::nsuffix.

Referenced by freeIOSM(), and iosmStage().

IOSM_t freeIOSM ( IOSM_t iosm )

Destroy I/O state machine instance.

Parameters

iosm	I/O state machine

Returns: always NULL

Definition at line 580 of file iosm.c.

References _free(), iosm_s::dnlx, freeHardLink(), iosm_s::iter, iosm_s::ldn, iosm_s::li, iosm_s::links, mapFreeIterator(), hardLink_s::next, and iosm_s::path.

int iosmFileActionSkipped ( iosmFileAction action )

Is the file going to be skipped?

Parameters

iosm	I/O state machine

Returns: Is file to be skipped?

Definition at line 2672 of file iosm.c.

References IOSM_SKIPPING.

Referenced by dnlInitIterator(), fsmCommitLinks(), fsmMakeLinks(), fsmStage(), handleInstInstalledFile(), handleOverlappedFiles(), iosmCommitLinks(), iosmMakeLinks(), iosmStage(), rpmtsAddFingerprints(), rpmtsSkipFiles(), and saveHardLink().

const char* iosmFileActionString ( iosmFileAction a )

Return formatted string representation of file disposition.

Parameters

a	file disposition

Returns: formatted string

Definition at line 2677 of file iosm.c.

References FA_ALTNAME, FA_BACKUP, FA_COPYIN, FA_COPYOUT, FA_CREATE, FA_ERASE, FA_SAVE, FA_SKIP, FA_SKIPCOLOR, FA_SKIPNETSHARED, FA_SKIPNSTATE, and FA_UNKNOWN.

const char* iosmFileStageString ( iosmFileStage a )

Return formatted string representation of file stages.

Parameters

a	file stage

Returns: formatted string

Definition at line 2697 of file iosm.c.

References IOSM_CHMOD, IOSM_CHOWN, IOSM_CHROOT, IOSM_COMMIT, IOSM_CREATE, IOSM_DESTROY, IOSM_DREAD, IOSM_DWRITE, IOSM_EAT, IOSM_FINI, IOSM_HREAD, IOSM_HWRITE, IOSM_INIT, IOSM_LCHOWN, IOSM_LINK, IOSM_LSETFCON, IOSM_LSTAT, IOSM_MAP, IOSM_MKDIR, IOSM_MKDIRS, IOSM_MKFIFO, IOSM_MKLINKS, IOSM_MKNOD, IOSM_NEXT, IOSM_NOTIFY, IOSM_PAD, IOSM_PKGBUILD, IOSM_PKGCOMMIT, IOSM_PKGERASE, IOSM_PKGINSTALL, IOSM_PKGUNDO, IOSM_POS, IOSM_POST, IOSM_PRE, IOSM_PROCESS, IOSM_RCLOSE, IOSM_READ, IOSM_READLINK, IOSM_RENAME, IOSM_RMDIR, IOSM_RMDIRS, IOSM_ROPEN, IOSM_STAT, IOSM_SYMLINK, IOSM_TRAILER, IOSM_UNDO, IOSM_UNKNOWN, IOSM_UNLINK, IOSM_UTIME, IOSM_VERIFY, IOSM_WCLOSE, IOSM_WOPEN, and IOSM_WRITE.

Referenced by fsmStage(), and iosmStage().

void* iosmGetFi ( const IOSM_t iosm )

Retrieve transaction element file info from I/O state machine iterator.

Parameters

iosm	I/O state machine

Returns: transaction element file info

Definition at line 97 of file iosm.c.

References iosmIterator_s::fi, and iosm_s::iter.

Referenced by dnlInitIterator(), iosmMapAttrs(), iosmMapFContext(), iosmMapPath(), iosmMkdirs(), iosmStage(), saveHardLink(), and writeFile().

int iosmMapAttrs ( IOSM_t iosm )

Map file stat(2) info.

Parameters

iosm	I/O state machine

Definition at line 949 of file iosm.c.

References _, iosm_s::digest, iosm_s::digestlen, iosm_s::fdigest, iosm_s::fdigestalgo, gnameToGid(), iosm_s::goal, IOSM_MAP_GID, IOSM_MAP_MODE, IOSM_MAP_TYPE, IOSM_MAP_UID, IOSM_PKGINSTALL, iosmGetFi(), iosm_s::ix, iosm_s::mapFlags, iosm_s::nofdigests, rpmlog(), RPMLOG_WARNING, iosm_s::sb, and unameToUid().

Referenced by iosmStage().

static int iosmMapFContext ( IOSM_t iosm )

static

Definition at line 835 of file iosm.c.

References iosm_s::fcontext, iosmGetFi(), iosm_s::ix, iosm_s::nofcontexts, iosm_s::path, rpmsxMatch(), and iosm_s::sb.

Referenced by iosmStage().

int iosmMapPath ( IOSM_t iosm )

Map next file path and action.

Parameters

iosm	I/O state machine

Definition at line 858 of file iosm.c.

References _free(), iosm_s::action, iosm_s::adding, iosm_s::astriplen, iosm_s::baseName, iosm_s::dirName, FA_ALTNAME, FA_BACKUP, FA_COPYIN, FA_COPYOUT, FA_CREATE, FA_ERASE, FA_SAVE, FA_SKIP, FA_SKIPCOLOR, FA_SKIPNETSHARED, FA_SKIPNSTATE, FA_UNKNOWN, iosm_s::fflags, IOSM_MAP_PATH, iosmFsPath(), iosmGetFi(), iosm_s::ix, iosm_s::mapFlags, iosm_s::nsuffix, iosm_s::osuffix, iosm_s::path, RPMFILE_GHOST, RPMFILE_STATE_NETSHARED, RPMFILE_STATE_NOTINSTALLED, RPMFILE_STATE_WRONGCOLOR, rpmteType(), iosm_s::sb, iosm_s::subdir, iosm_s::suffix, SUFFIX_RPMNEW, SUFFIX_RPMORIG, SUFFIX_RPMSAVE, and TR_REMOVED.

Referenced by iosmStage().

static int iosmMkdirs ( IOSM_t iosm )

static

Create (if necessary) directories not explicitly included in package.

Parameters

iosm	file state machine data

Returns: 0 on success

Definition at line 1469 of file iosm.c.

References _free(), D_, dc, dnlCount(), dnlFreeIterator(), dnlIndex(), dnlInitIterator(), dnlNextIterator(), iosm_s::dnlx, iosm_s::fcontext, IOSM_LSETFCON, IOSM_LSTAT, IOSM_MKDIR, IOSMERR_ENOENT, iosmGetFi(), iosmNext(), iosmUNSAFE, iosm_s::ldn, iosm_s::ldnalloc, iosm_s::ldnlen, iosm_s::osb, iosm_s::path, iosm_s::rdbuf, rpmlog(), RPMLOG_DEBUG, rpmsxMatch(), iosm_s::sb, stpcpy(), urlPath(), xcalloc(), and xrealloc.

Referenced by iosmStage().

int iosmNext	(	IOSM_t	iosm,
		iosmFileStage	nstage
	)

File state machine driver.

Parameters

iosm	I/O state machine
nstage	next stage

Returns: 0 on success

Definition at line 461 of file iosm.c.

References iosmStage(), iosm_s::multithreaded, iosm_s::nstage, rpmsqJoin(), and rpmsqThread().

Referenced by extractRegular(), iosmCommitLinks(), iosmMakeLinks(), iosmMkdirs(), iosmRmdirs(), iosmSetup(), iosmStage(), saveHardLink(), writeFile(), and writeLinkedFile().

static int iosmRmdirs ( IOSM_t iosm )

static

Remove (if created) directories not explicitly included in package.

Parameters

iosm	file state machine data

Returns: 0 on success

Definition at line 1414 of file iosm.c.

References dc, dnlCount(), dnlFreeIterator(), dnlIndex(), dnlInitIterator(), dnlNextIterator(), iosm_s::dnlx, IOSM_RMDIR, iosmNext(), iosm_s::ldn, iosm_s::path, iosm_s::rdbuf, and stpcpy().

Referenced by iosmStage().

int iosmSetup	(	IOSM_t	iosm,
		iosmFileStage	goal,
		const char *	afmt,
		const void *	_ts,
		const void *	_fi,
		FD_t	cfd,
		unsigned int *	archiveSize,
		const char **	failedFile
	)

Load external data into I/O state machine.

Parameters

iosm	I/O state machine
goal
afmt	archive format (NULL uses cpio)
_ts	transaction set
_fi	transaction element file info
cfd	payload descriptor

Return values

archiveSize	pointer to archive size
failedFile	pointer to first file name that failed.

Returns: 0 on success

Definition at line 669 of file iosm.c.

References _iosm_debug, _iosm_threads, _iosmNext, _tsmask, iosm_s::adding, iosm_s::archiveSize, arHeaderRead(), arHeaderWrite(), arSetup(), arTrailerWrite(), iosm_s::blksize, iosm_s::cfd, iosm_s::commit, cpioHeaderRead(), cpioHeaderWrite(), cpioTrailerWrite(), iosm_s::debug, FA_COPYOUT, iosm_s::failedFile, fdGetCpioPos(), fdLink(), fdSetCpioPos(), iosm_s::goal, iosm_s::headerRead, iosm_s::headerWrite, IOSM_CREATE, IOSM_PKGBUILD, IOSM_PKGCOMMIT, IOSM_PKGERASE, IOSM_PKGINSTALL, iosmNext(), iosmUNSAFE, iosm_s::iter, mapInitIterator(), iosm_s::multithreaded, iosm_s::nofcontexts, iosm_s::nofdigests, iosm_s::rc, reverse, RPMCALLBACK_INST_START, rpmteType(), RPMTRANS_FLAG_NOCONTEXTS, RPMTRANS_FLAG_NOFDIGESTS, rpmtsFlags(), rpmtsGetTid(), rpmtsLink(), rpmtsNotify(), iosm_s::sufbuf, TAR_BLOCK_SIZE, tarHeaderRead(), tarHeaderWrite(), tarTrailerWrite(), TR_ADDED, TR_REMOVED, iosm_s::trailerWrite, and iosmIterator_s::ts.

int iosmStage	(	IOSM_t	iosm,
		iosmFileStage	stage
	)

File state machine driver.

Parameters

iosm	I/O state machine
stage	next stage

Returns: 0 on success

Definition at line 1632 of file iosm.c.

References _, _fafilter, _free(), iosm_s::action, alloca(), iosm_s::astriplen, iosm_s::blksize, iosm_s::cfd, Chmod(), Chown(), iosm_s::commit, CPIO_TRAILER, hardLink_s::createdPath, iosm_s::debug, iosm_s::diskchecked, iosm_s::dnlx, errno, iosm_s::exists, extractRegular(), FA_ERASE, FA_UNKNOWN, Fadvise(), iosm_s::failedFile, Fclose(), iosm_s::fcontext, fdGetCpioPos(), fdSetCpioPos(), FDSTAT_DIGEST, fdstat_op(), Ferror(), iosm_s::fflags, hardLink_s::filex, Fopen(), Fread(), freeHardLink(), Fwrite(), iosm_s::goal, iosm_s::headerRead, iosm_s::headerWrite, IOSM_ALL_HARDLINKS, IOSM_CHMOD, IOSM_CHOWN, IOSM_CHROOT, IOSM_COMMIT, IOSM_CREATE, IOSM_DEAD, IOSM_DESTROY, IOSM_DREAD, IOSM_DWRITE, IOSM_EAT, IOSM_FINI, IOSM_FOLLOW_SYMLINKS, IOSM_HREAD, IOSM_HWRITE, IOSM_INIT, IOSM_INTERNAL, IOSM_LCHOWN, IOSM_LINK, IOSM_LSETFCON, IOSM_LSTAT, IOSM_MAP, IOSM_MKDIR, IOSM_MKDIRS, IOSM_MKFIFO, IOSM_MKLINKS, IOSM_MKNOD, IOSM_NEXT, IOSM_NOTIFY, IOSM_PAD, IOSM_PAYLOAD_EXTRACT, IOSM_PAYLOAD_LIST, IOSM_PKGBUILD, IOSM_PKGCOMMIT, IOSM_PKGERASE, IOSM_PKGINSTALL, IOSM_POS, IOSM_POST, IOSM_PRE, IOSM_PROCESS, IOSM_RCLOSE, IOSM_READ, IOSM_READLINK, IOSM_RENAME, IOSM_RMDIR, IOSM_RMDIRS, IOSM_ROPEN, IOSM_SBIT_CHECK, IOSM_STAT, IOSM_SYMLINK, IOSM_SYSCALL, IOSM_TRAILER, IOSM_UNDO, IOSM_UNKNOWN, IOSM_UNLINK, IOSM_UTIME, IOSM_VERBOSE, IOSM_VERIFY, IOSM_WCLOSE, IOSM_WOPEN, IOSM_WRITE, iosmCommitLinks(), IOSMERR_CHMOD_FAILED, IOSMERR_CHOWN_FAILED, IOSMERR_ENOENT, IOSMERR_ENOTEMPTY, IOSMERR_HDR_TRAILER, IOSMERR_LINK_FAILED, IOSMERR_LSETFCON_FAILED, IOSMERR_LSTAT_FAILED, IOSMERR_MISSING_HARDLINK, IOSMERR_MKDIR_FAILED, IOSMERR_MKFIFO_FAILED, IOSMERR_MKNOD_FAILED, IOSMERR_OPEN_FAILED, IOSMERR_READ_FAILED, IOSMERR_READLINK_FAILED, IOSMERR_RENAME_FAILED, IOSMERR_RMDIR_FAILED, IOSMERR_STAT_FAILED, IOSMERR_SYMLINK_FAILED, IOSMERR_UNKNOWN_FILETYPE, IOSMERR_UNLINK_FAILED, IOSMERR_UNMAPPED_FILE, IOSMERR_UTIME_FAILED, IOSMERR_WRITE_FAILED, iosmFileActionSkipped(), iosmFileStageString(), iosmFsPath(), iosmGetFi(), iosmGetTs(), iosmMakeLinks(), iosmMapAttrs(), iosmMapFContext(), iosmMapPath(), iosmMkdirs(), iosmNext(), iosmRmdirs(), iosmUNSAFE, IS_DEV_LOG, iosm_s::iter, iosm_s::ix, Lchown(), iosm_s::ldn, iosm_s::ldnalloc, iosm_s::ldnlen, iosm_s::li, Link(), hardLink_s::linkIndex, iosm_s::links, hardLink_s::linksLeft, iosm_s::lpath, Lstat(), mapFind(), iosm_s::mapFlags, mapNextIterator(), Mkdir(), iosm_s::mkdirsdone, Mkfifo(), Mknod(), hardLink_s::next, hardLink_s::nlink, iosm_s::nsuffix, iosm_s::op_digest, iosm_s::opath, iosm_s::osb, iosm_s::osuffix, iosm_s::path, iosm_s::postpone, iosm_s::rc, iosm_s::rdb, iosm_s::rdbuf, iosm_s::rdlen, iosm_s::rdnb, iosm_s::rdsize, Readlink(), Rename(), iosm_s::repackaged, iosm_s::rfd, Rmdir(), RPMCALLBACK_INST_PROGRESS, RPMFILE_GHOST, RPMFILE_MISSINGOK, rpmlog(), RPMLOG_DEBUG, RPMLOG_ERR, RPMLOG_WARNING, rpmswAdd(), rpmsxLsetfilecon(), rpmtsNotify(), S_ISLNK, S_ISSOCK, saveHardLink(), hardLink_s::sb, iosm_s::sb, iosm_s::stage, Stat(), stpcpy(), iosm_s::strict_erasures, iosm_s::subdir, iosm_s::sufbuf, iosm_s::suffix, Symlink(), iosm_s::trailerWrite, Unlink(), urlPath(), Utime(), iosm_s::wfd, iosm_s::wrb, iosm_s::wrbuf, writeFile(), writeLinkedFile(), iosm_s::wrlen, iosm_s::wrnb, iosm_s::wrsize, xmalloc, and xstrdup().

Referenced by fsmStage(), and iosmNext().

int iosmTeardown ( IOSM_t iosm )

Clean I/O state machine.

Parameters

iosm	I/O state machine

Returns: 0 on success

Definition at line 802 of file iosm.c.

References _free(), iosm_s::cfd, iosm_s::debug, iosm_s::failedFile, fdFree(), IOSM_DESTROY, iosmGetTs(), iosmUNSAFE, iosm_s::iter, iosm_s::lmtab, mapFreeIterator(), iosm_s::op_digest, iosm_s::rc, rpmswAdd(), RPMTS_OP_DIGEST, rpmtsFree(), rpmtsOp(), and iosmIterator_s::ts.

static int mapFind	(	IOSMI_t	iter,
		const char *	iosmPath
	)

static

Locate archive path in file info.

Parameters

iter	file info iterator
iosmPath	archive path

Returns: index into file info, -1 if archive path was not found

Definition at line 247 of file iosm.c.

References _RPMFI_NOMETHODS, Spec_s::fi, iosmIterator_s::fi, iosmIterator_s::i, iosmStrCmp(), mapNextIterator(), and rpmfiFC().

Referenced by iosmStage().

static void* mapFreeIterator ( void * _iter )

static

Destroy file info iterator.

Parameters

_iter file info iterator

Return values

NULL always

Definition at line 150 of file iosm.c.

References _free(), iosmIterator_s::fi, and rpmfiUnlink().

Referenced by freeIOSM(), and iosmTeardown().

static void* mapInitIterator	(	rpmfi	fi,
		int	reverse
	)

static

Create file info iterator.

Parameters

fi	transaction element file info
reverse	iterate in reverse order?

Returns: file info iterator

Definition at line 171 of file iosm.c.

References Spec_s::fi, iosmIterator_s::fi, iosmIterator_s::i, iosmIterator_s::isave, reverse, iosmIterator_s::reverse, rpmfiLink(), and xcalloc().

Referenced by iosmSetup().

static int mapNextIterator ( void * _iter )

static

Return next index into file info.

Parameters

_iter file info iterator

Returns: next index, -1 on termination

Definition at line 194 of file iosm.c.

References iosmIterator_s::fi, iosmIterator_s::i, iosmIterator_s::isave, and iosmIterator_s::reverse.

Referenced by iosmStage(), and mapFind().

IOSM_t newIOSM ( void )

Create I/O state machine instance.

Returns: I/O state machine

Definition at line 574 of file iosm.c.

References xcalloc().

static int saveHardLink ( IOSM_t iosm )

static

Save hard link in chain.

Parameters

iosm	file state machine data

Returns: Is chain only partially filled?

Definition at line 478 of file iosm.c.

References _free(), hardLink_s::createdPath, hardLink_s::filex, iosm_s::goal, IOSM_MAP, IOSM_PKGBUILD, IOSM_PKGINSTALL, iosmFileActionSkipped(), iosmGetFi(), iosmNext(), iosm_s::ix, iosm_s::li, hardLink_s::linkIndex, iosm_s::links, hardLink_s::linksLeft, hardLink_s::next, hardLink_s::nlink, hardLink_s::nsuffix, iosm_s::nsuffix, iosm_s::path, hardLink_s::sb, iosm_s::sb, and xcalloc().

Referenced by iosmStage().

static int writeFile	(	IOSM_t	iosm,
		int	writeData
	)

static

Write next item to payload stream.

Parameters

iosm	file state machine data
writeData	should data be written?

Returns: 0 on success

Definition at line 1100 of file iosm.c.

References alloca(), iosm_s::baseName, iosm_s::dirName, Fileno(), IOSM_DWRITE, IOSM_HWRITE, IOSM_MAP_ABSOLUTE, IOSM_MAP_ADDDOT, IOSM_MAP_PATH, IOSM_PAD, IOSM_RCLOSE, IOSM_READ, IOSM_READLINK, IOSM_ROPEN, iosmGetFi(), iosmNext(), iosmUNSAFE, iosm_s::ix, iosm_s::lpath, iosm_s::mapFlags, iosm_s::opath, iosm_s::osb, iosm_s::path, iosm_s::rdbuf, iosm_s::rdlen, iosm_s::rdnb, iosm_s::rdsize, iosm_s::rfd, S_ISLNK, iosm_s::sb, stpcpy(), urlPath(), iosm_s::wrnb, and xstrdup().

Referenced by iosmStage(), and writeLinkedFile().

static int writeLinkedFile ( IOSM_t iosm )

static

Write set of linked files to payload stream.

Parameters

iosm	file state machine data

Returns: 0 on success

Definition at line 1235 of file iosm.c.

References _free(), iosm_s::astriplen, iosm_s::failedFile, hardLink_s::filex, iosm_s::headerWrite, IOSM_MAP, iosmNext(), iosm_s::ix, iosm_s::li, iosm_s::lpath, hardLink_s::nlink, iosm_s::nsuffix, iosm_s::path, stpcpy(), tarHeaderWrite(), urlPath(), writeFile(), xmalloc, and xstrdup().

Referenced by iosmStage().

Variable Documentation

int _iosm_debug = 0

Definition at line 75 of file iosm.c.

Referenced by iosmSetup().

int _iosm_threads = 0

Definition at line 79 of file iosm.c.

Referenced by iosmSetup().

int(* _iosmNext)(IOSM_t iosm, iosmFileStage nstage) = &iosmNext

Vector to iosmNext.

Definition at line 83 of file iosm.c.

Referenced by arHeaderRead(), arHeaderWrite(), arRead(), arTrailerWrite(), arWrite(), cpioHeaderRead(), cpioHeaderWrite(), cpioRead(), cpioTrailerWrite(), cpioWrite(), fsmSetup(), iosmSetup(), tarHeaderWrite(), tarHeaderWriteName(), tarRead(), tarTrailerWrite(), and tarWrite().

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation