rpmio/ar.c File Reference

Handle ar(1) archives. More...

#include "system.h"
#include <rpmio_internal.h>
#include <rpmmacro.h>
#include <ugid.h>
#include <ar.h>
#include <iosm.h>
#include "debug.h"

Include dependency graph for ar.c:

Go to the source code of this file.

Defines
#define	_IOSM_INTERNAL
#define	_IOSMRC(_rc)   if ((_rc) <= 0) return ((_rc) ? (int) -rc : IOSMERR_HDR_TRAILER)
Functions
static int	strntoul (const char *str, char **endptr, int base, size_t num)
	Convert string to unsigned integer (with buffer size check).
static ssize_t	arRead (void *_iosm, void *buf, size_t count)
int	arHeaderRead (void *_iosm, struct stat *st)
	Read ar(1) header.
static ssize_t	arWrite (void *_iosm, const void *buf, size_t count)
int	arHeaderWrite (void *_iosm, struct stat *st)
	Write ar(1) header.
int	arTrailerWrite (void *_iosm)
	Write ar(1) trailer.
Variables
int	_ar_debug = 0

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Detailed Description

Handle ar(1) archives.

Definition in file ar.c.

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Define Documentation

#define _IOSM_INTERNAL

Definition at line 15 of file ar.c.

#define _IOSMRC

(

_rc

)

if ((_rc) <= 0) return ((_rc) ? (int) -rc : IOSMERR_HDR_TRAILER)

Definition at line 56 of file ar.c.

Referenced by arHeaderRead(), arHeaderWrite(), and arTrailerWrite().

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Function Documentation

int arHeaderRead	(	void *	_iosm,
		struct stat *	st
	)

Read ar(1) header.

Return values:

_iosm	file path and stat info
st

Returns:

0 on success

Definition at line 92 of file ar.c.

References _ar_debug, _iosmNext, _IOSMRC, AR_MAGIC, AR_MARKER, arRead(), iosm_s::cfd, fdGetCpioPos(), IOSM_POS, IOSMERR_BAD_MAGIC, iosm_s::lmtab, iosm_s::lmtablen, iosm_s::lmtaboff, iosm_s::path, strntoul(), iosm_s::wrbuf, xisdigit(), and xstrdup().

Referenced by fsmSetup(), and iosmSetup().

int arHeaderWrite	(	void *	_iosm,
		struct stat *	st
	)

Write ar(1) header.

Return values:

_iosm

file path and stat info

Parameters:

st

Returns:

0 on success

Definition at line 235 of file ar.c.

References _ar_debug, _iosmNext, _IOSMRC, AR_MAGIC, AR_MARKER, arWrite(), iosm_s::cfd, fdGetCpioPos(), arHeader_s::filesize, arHeader_s::gid, IOSM_PAD, iosm_s::lmtab, iosm_s::lmtablen, iosm_s::lmtaboff, arHeader_s::marker, arHeader_s::mode, arHeader_s::mtime, arHeader_s::name, iosm_s::path, iosm_s::rdbuf, snprintf(), and arHeader_s::uid.

Referenced by fsmSetup(), and iosmSetup().

static ssize_t arRead	(	void *	_iosm,
		void *	buf,
		size_t	count
	)		[static]

Definition at line 59 of file ar.c.

References _ar_debug, _iosmNext, IOSM_DREAD, IOSMERR_HDR_TRAILER, IOSMERR_READ_FAILED, iosm_s::rdnb, iosm_s::wrbuf, and iosm_s::wrlen.

Referenced by arHeaderRead().

int arTrailerWrite

(

void *

_iosm

)

Write ar(1) trailer.

Return values:

_iosm

file path and stat info

Returns:

0 on success

Definition at line 309 of file ar.c.

References _ar_debug, _iosmNext, _IOSMRC, arWrite(), and IOSM_PAD.

Referenced by fsmSetup(), and iosmSetup().

static ssize_t arWrite	(	void *	_iosm,
		const void *	buf,
		size_t	count
	)		[static]

Definition at line 199 of file ar.c.

References _ar_debug, _iosmNext, IOSM_DWRITE, IOSM_PAD, IOSMERR_WRITE_FAILED, iosm_s::rdbuf, iosm_s::rdnb, and iosm_s::wrnb.

Referenced by arHeaderWrite(), and arTrailerWrite().

static int strntoul	(	const char *	str,
		char **	endptr,
		int	base,
		size_t	num
	)		[static]

Convert string to unsigned integer (with buffer size check).

Parameters:

str	input string

Return values:

*endptr

1st character not processed

Parameters:

base	numerical conversion base
num	max no. of bytes to read

Returns:

converted integer

Definition at line 33 of file ar.c.

References alloca().

Referenced by arHeaderRead().

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Variable Documentation

int _ar_debug = 0

Definition at line 23 of file ar.c.

Referenced by arHeaderRead(), arHeaderWrite(), arRead(), arTrailerWrite(), and arWrite().