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CMake/Source/CPack/cmCPackDebGenerator.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmCPackDebGenerator.h"
#include "cmSystemTools.h"
#include "cmMakefile.h"
#include "cmGeneratedFileStream.h"
#include "cmCPackLog.h"
#include <cmsys/SystemTools.hxx>
#include <cmsys/Glob.hxx>
#include <limits.h> // USHRT_MAX
// NOTE:
// A debian package .deb is simply an 'ar' archive. The only subtle difference
// is that debian uses the BSD ar style archive whereas most Linux distro have
// a GNU ar.
// See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=161593 for more info
// Therefore we provide our own implementation of a BSD-ar:
static int ar_append(const char*archive,const std::vector<std::string>& files);
//----------------------------------------------------------------------
cmCPackDebGenerator::cmCPackDebGenerator()
{
}
//----------------------------------------------------------------------
cmCPackDebGenerator::~cmCPackDebGenerator()
{
}
//----------------------------------------------------------------------
int cmCPackDebGenerator::InitializeInternal()
{
this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/usr");
if (cmSystemTools::IsOff(this->GetOption("CPACK_SET_DESTDIR")))
{
this->SetOption("CPACK_SET_DESTDIR", "I_ON");
}
return this->Superclass::InitializeInternal();
}
//----------------------------------------------------------------------
int cmCPackDebGenerator::PackageOnePack(std::string initialTopLevel,
std::string packageName)
{
int retval = 1;
// Begin the archive for this pack
std::string localToplevel(initialTopLevel);
std::string packageFileName(
cmSystemTools::GetParentDirectory(toplevel.c_str())
);
std::string outputFileName(
std::string(this->GetOption("CPACK_PACKAGE_FILE_NAME"))
+"-"+packageName + this->GetOutputExtension()
);
localToplevel += "/"+ packageName;
/* replace the TEMP DIRECTORY with the component one */
this->SetOption("CPACK_TEMPORARY_DIRECTORY",localToplevel.c_str());
packageFileName += "/"+ outputFileName;
/* replace proposed CPACK_OUTPUT_FILE_NAME */
this->SetOption("CPACK_OUTPUT_FILE_NAME",outputFileName.c_str());
/* replace the TEMPORARY package file name */
this->SetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME",
packageFileName.c_str());
// Tell CPackDeb.cmake the name of the component GROUP.
this->SetOption("CPACK_DEB_PACKAGE_COMPONENT",packageName.c_str());
if (!this->ReadListFile("CPackDeb.cmake"))
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Error while execution CPackDeb.cmake" << std::endl);
retval = 0;
return retval;
}
cmsys::Glob gl;
std::string findExpr(this->GetOption("WDIR"));
findExpr += "/*";
gl.RecurseOn();
if ( !gl.FindFiles(findExpr) )
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Cannot find any files in the installed directory" << std::endl);
return 0;
}
packageFiles = gl.GetFiles();
int res = createDeb();
if (res != 1)
{
retval = 0;
}
// add the generated package to package file names list
packageFileNames.push_back(packageFileName);
return retval;
}
//----------------------------------------------------------------------
int cmCPackDebGenerator::PackageComponents(bool ignoreGroup)
{
int retval = 1;
/* Reset package file name list it will be populated during the
* component packaging run*/
packageFileNames.clear();
std::string initialTopLevel(this->GetOption("CPACK_TEMPORARY_DIRECTORY"));
// The default behavior is to have one package by component group
// unless CPACK_COMPONENTS_IGNORE_GROUP is specified.
if (!ignoreGroup)
{
std::map<std::string, cmCPackComponentGroup>::iterator compGIt;
for (compGIt=this->ComponentGroups.begin();
compGIt!=this->ComponentGroups.end(); ++compGIt)
{
cmCPackLogger(cmCPackLog::LOG_VERBOSE, "Packaging component group: "
<< compGIt->first
<< std::endl);
// Begin the archive for this group
retval &= PackageOnePack(initialTopLevel,compGIt->first);
}
// Handle Orphan components (components not belonging to any groups)
std::map<std::string, cmCPackComponent>::iterator compIt;
for (compIt=this->Components.begin();
compIt!=this->Components.end(); ++compIt )
{
// Does the component belong to a group?
if (compIt->second.Group==NULL)
{
cmCPackLogger(cmCPackLog::LOG_VERBOSE,
"Component <"
<< compIt->second.Name
<< "> does not belong to any group, package it separately."
<< std::endl);
// Begin the archive for this orphan component
retval &= PackageOnePack(initialTopLevel,compIt->first);
}
}
}
// CPACK_COMPONENTS_IGNORE_GROUPS is set
// We build 1 package per component
else
{
std::map<std::string, cmCPackComponent>::iterator compIt;
for (compIt=this->Components.begin();
compIt!=this->Components.end(); ++compIt )
{
retval &= PackageOnePack(initialTopLevel,compIt->first);
}
}
return retval;
}
//----------------------------------------------------------------------
int cmCPackDebGenerator::PackageComponentsAllInOne()
{
int retval = 1;
std::string compInstDirName;
/* Reset package file name list it will be populated during the
* component packaging run*/
packageFileNames.clear();
std::string initialTopLevel(this->GetOption("CPACK_TEMPORARY_DIRECTORY"));
compInstDirName = "ALL_COMPONENTS_IN_ONE";
cmCPackLogger(cmCPackLog::LOG_VERBOSE,
"Packaging all groups in one package..."
"(CPACK_COMPONENTS_ALL_[GROUPS_]IN_ONE_PACKAGE is set)"
<< std::endl);
// The ALL GROUPS in ONE package case
std::string localToplevel(initialTopLevel);
std::string packageFileName(
cmSystemTools::GetParentDirectory(toplevel.c_str())
);
std::string outputFileName(
std::string(this->GetOption("CPACK_PACKAGE_FILE_NAME"))
+ this->GetOutputExtension()
);
// all GROUP in one vs all COMPONENT in one
localToplevel += "/"+compInstDirName;
/* replace the TEMP DIRECTORY with the component one */
this->SetOption("CPACK_TEMPORARY_DIRECTORY",localToplevel.c_str());
packageFileName += "/"+ outputFileName;
/* replace proposed CPACK_OUTPUT_FILE_NAME */
this->SetOption("CPACK_OUTPUT_FILE_NAME",outputFileName.c_str());
/* replace the TEMPORARY package file name */
this->SetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME",
packageFileName.c_str());
// Tell CPackDeb.cmake the name of the component GROUP.
this->SetOption("CPACK_DEB_PACKAGE_COMPONENT",compInstDirName.c_str());
if (!this->ReadListFile("CPackDeb.cmake"))
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Error while execution CPackDeb.cmake" << std::endl);
retval = 0;
return retval;
}
cmsys::Glob gl;
std::string findExpr(this->GetOption("WDIR"));
findExpr += "/*";
gl.RecurseOn();
if ( !gl.FindFiles(findExpr) )
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Cannot find any files in the installed directory" << std::endl);
return 0;
}
packageFiles = gl.GetFiles();
int res = createDeb();
if (res != 1)
{
retval = 0;
}
// add the generated package to package file names list
packageFileNames.push_back(packageFileName);
return retval;
}
//----------------------------------------------------------------------
int cmCPackDebGenerator::PackageFiles()
{
int retval = -1;
/* Are we in the component packaging case */
if (WantsComponentInstallation()) {
// CASE 1 : COMPONENT ALL-IN-ONE package
// If ALL GROUPS or ALL COMPONENTS in ONE package has been requested
// then the package file is unique and should be open here.
if (componentPackageMethod == ONE_PACKAGE)
{
return PackageComponentsAllInOne();
}
// CASE 2 : COMPONENT CLASSICAL package(s) (i.e. not all-in-one)
// There will be 1 package for each component group
// however one may require to ignore component group and
// in this case you'll get 1 package for each component.
else
{
return PackageComponents(componentPackageMethod ==
ONE_PACKAGE_PER_COMPONENT);
}
}
// CASE 3 : NON COMPONENT package.
else
{
if (!this->ReadListFile("CPackDeb.cmake"))
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Error while execution CPackDeb.cmake" << std::endl);
retval = 0;
}
else
{
packageFiles = files;
return createDeb();
}
}
return retval;
}
int cmCPackDebGenerator::createDeb()
{
const char* cmakeExecutable = this->GetOption("CMAKE_COMMAND");
// debian-binary file
std::string dbfilename;
dbfilename += this->GetOption("WDIR");
dbfilename += "/debian-binary";
{ // the scope is needed for cmGeneratedFileStream
cmGeneratedFileStream out(dbfilename.c_str());
out << "2.0";
out << std::endl; // required for valid debian package
}
// control file
std::string ctlfilename;
ctlfilename = this->GetOption("WDIR");
ctlfilename += "/control";
// debian policy enforce lower case for package name
// mandatory entries:
std::string debian_pkg_name = cmsys::SystemTools::LowerCase(
this->GetOption("CPACK_DEBIAN_PACKAGE_NAME") );
const char* debian_pkg_version =
this->GetOption("CPACK_DEBIAN_PACKAGE_VERSION");
const char* debian_pkg_section =
this->GetOption("CPACK_DEBIAN_PACKAGE_SECTION");
const char* debian_pkg_priority =
this->GetOption("CPACK_DEBIAN_PACKAGE_PRIORITY");
const char* debian_pkg_arch =
this->GetOption("CPACK_DEBIAN_PACKAGE_ARCHITECTURE");
const char* maintainer = this->GetOption("CPACK_DEBIAN_PACKAGE_MAINTAINER");
const char* desc = this->GetOption("CPACK_DEBIAN_PACKAGE_DESCRIPTION");
// optional entries
const char* debian_pkg_dep = this->GetOption("CPACK_DEBIAN_PACKAGE_DEPENDS");
const char* debian_pkg_rec =
this->GetOption("CPACK_DEBIAN_PACKAGE_RECOMMENDS");
const char* debian_pkg_sug =
this->GetOption("CPACK_DEBIAN_PACKAGE_SUGGESTS");
const char* debian_pkg_url =
this->GetOption("CPACK_DEBIAN_PACKAGE_HOMEPAGE");
const char* debian_pkg_predep =
this->GetOption("CPACK_DEBIAN_PACKAGE_PREDEPENDS");
const char* debian_pkg_enhances =
this->GetOption("CPACK_DEBIAN_PACKAGE_ENHANCES");
const char* debian_pkg_breaks =
this->GetOption("CPACK_DEBIAN_PACKAGE_BREAKS");
const char* debian_pkg_conflicts =
this->GetOption("CPACK_DEBIAN_PACKAGE_CONFLICTS");
const char* debian_pkg_provides =
this->GetOption("CPACK_DEBIAN_PACKAGE_PROVIDES");
const char* debian_pkg_replaces =
this->GetOption("CPACK_DEBIAN_PACKAGE_REPLACES");
{ // the scope is needed for cmGeneratedFileStream
cmGeneratedFileStream out(ctlfilename.c_str());
out << "Package: " << debian_pkg_name << "\n";
out << "Version: " << debian_pkg_version << "\n";
out << "Section: " << debian_pkg_section << "\n";
out << "Priority: " << debian_pkg_priority << "\n";
out << "Architecture: " << debian_pkg_arch << "\n";
if(debian_pkg_dep && *debian_pkg_dep)
{
out << "Depends: " << debian_pkg_dep << "\n";
}
if(debian_pkg_rec && *debian_pkg_rec)
{
out << "Recommends: " << debian_pkg_rec << "\n";
}
if(debian_pkg_sug && *debian_pkg_sug)
{
out << "Suggests: " << debian_pkg_sug << "\n";
}
if(debian_pkg_url && *debian_pkg_url)
{
out << "Homepage: " << debian_pkg_url << "\n";
}
if (debian_pkg_predep && *debian_pkg_predep)
{
out << "Pre-Depends: " << debian_pkg_predep << "\n";
}
if (debian_pkg_enhances && *debian_pkg_enhances)
{
out << "Enhances: " << debian_pkg_enhances << "\n";
}
if (debian_pkg_breaks && *debian_pkg_breaks)
{
out << "Breaks: " << debian_pkg_breaks << "\n";
}
if (debian_pkg_conflicts && *debian_pkg_conflicts)
{
out << "Conflicts: " << debian_pkg_conflicts << "\n";
}
if (debian_pkg_provides && *debian_pkg_provides)
{
out << "Provides: " << debian_pkg_provides << "\n";
}
if (debian_pkg_replaces && *debian_pkg_replaces)
{
out << "Replaces: " << debian_pkg_replaces << "\n";
}
unsigned long totalSize = 0;
{
std::string dirName = this->GetOption("CPACK_TEMPORARY_DIRECTORY");
dirName += '/';
for (std::vector<std::string>::const_iterator fileIt =
packageFiles.begin();
fileIt != packageFiles.end(); ++ fileIt )
{
totalSize += cmSystemTools::FileLength(fileIt->c_str());
}
}
out << "Installed-Size: " << (totalSize + 1023) / 1024 << "\n";
out << "Maintainer: " << maintainer << "\n";
out << "Description: " << desc << "\n";
out << std::endl;
}
std::string cmd;
if (NULL != this->GetOption("CPACK_DEBIAN_FAKEROOT_EXECUTABLE")) {
cmd += this->GetOption("CPACK_DEBIAN_FAKEROOT_EXECUTABLE");
}
cmd += " \"";
cmd += cmakeExecutable;
cmd += "\" -E tar cfz data.tar.gz ";
// now add all directories which have to be compressed
// collect all top level install dirs for that
// e.g. /opt/bin/foo, /usr/bin/bar and /usr/bin/baz would give /usr and /opt
size_t topLevelLength = std::string(this->GetOption("WDIR")).length();
cmCPackLogger(cmCPackLog::LOG_DEBUG, "WDIR: \"" << this->GetOption("WDIR")
<< "\", length = " << topLevelLength
<< std::endl);
std::set<std::string> installDirs;
for (std::vector<std::string>::const_iterator fileIt =
packageFiles.begin();
fileIt != packageFiles.end(); ++ fileIt )
{
cmCPackLogger(cmCPackLog::LOG_DEBUG, "FILEIT: \"" << *fileIt << "\""
<< std::endl);
std::string::size_type slashPos = fileIt->find('/', topLevelLength+1);
std::string relativeDir = fileIt->substr(topLevelLength,
slashPos - topLevelLength);
cmCPackLogger(cmCPackLog::LOG_DEBUG, "RELATIVEDIR: \"" << relativeDir
<< "\"" << std::endl);
if (installDirs.find(relativeDir) == installDirs.end())
{
installDirs.insert(relativeDir);
cmd += " .";
cmd += relativeDir;
}
}
std::string output;
int retval = -1;
int res = cmSystemTools::RunSingleCommand(cmd.c_str(), &output,
&retval, this->GetOption("WDIR"), this->GeneratorVerbose, 0);
if ( !res || retval )
{
std::string tmpFile = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
tmpFile += "/Deb.log";
cmGeneratedFileStream ofs(tmpFile.c_str());
ofs << "# Run command: " << cmd.c_str() << std::endl
<< "# Working directory: " << toplevel << std::endl
<< "# Output:" << std::endl
<< output.c_str() << std::endl;
cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem running tar command: "
<< cmd.c_str() << std::endl
<< "Please check " << tmpFile.c_str() << " for errors" << std::endl);
return 0;
}
std::string md5filename;
md5filename = this->GetOption("WDIR");
md5filename += "/md5sums";
{ // the scope is needed for cmGeneratedFileStream
cmGeneratedFileStream out(md5filename.c_str());
std::vector<std::string>::const_iterator fileIt;
// std::string topLevelWithTrailingSlash = toplevel;
std::string topLevelWithTrailingSlash =
this->GetOption("CPACK_TEMPORARY_DIRECTORY");
topLevelWithTrailingSlash += '/';
for ( fileIt = packageFiles.begin();
fileIt != packageFiles.end(); ++ fileIt )
{
cmd = "\"";
cmd += cmakeExecutable;
cmd += "\" -E md5sum \"";
cmd += *fileIt;
cmd += "\"";
//std::string output;
//int retVal = -1;
res = cmSystemTools::RunSingleCommand(cmd.c_str(), &output,
&retval, toplevel.c_str(), this->GeneratorVerbose, 0);
// debian md5sums entries are like this:
// 014f3604694729f3bf19263bac599765 usr/bin/ccmake
// thus strip the full path (with the trailing slash)
cmSystemTools::ReplaceString(output,
topLevelWithTrailingSlash.c_str(), "");
out << output;
}
// each line contains a eol.
// Do not end the md5sum file with yet another (invalid)
}
cmd = "";
if (NULL != this->GetOption("CPACK_DEBIAN_FAKEROOT_EXECUTABLE"))
{
cmd = this->GetOption("CPACK_DEBIAN_FAKEROOT_EXECUTABLE");
}
cmd += " \"";
cmd += cmakeExecutable;
cmd += "\" -E tar cfz control.tar.gz ./control ./md5sums";
const char* controlExtra =
this->GetOption("CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA");
if( controlExtra )
{
std::vector<std::string> controlExtraList;
cmSystemTools::ExpandListArgument(controlExtra, controlExtraList);
for(std::vector<std::string>::iterator i =
controlExtraList.begin(); i != controlExtraList.end(); ++i)
{
std::string filenamename =
cmsys::SystemTools::GetFilenameName(i->c_str());
std::string localcopy = this->GetOption("WDIR");
localcopy += "/";
localcopy += filenamename;
// if we can copy the file, it means it does exist, let's add it:
if( cmsys::SystemTools::CopyFileIfDifferent(
i->c_str(), localcopy.c_str()) )
{
// debian is picky and need relative to ./ path in the tar.gz
cmd += " ./";
cmd += filenamename;
}
}
}
res = cmSystemTools::RunSingleCommand(cmd.c_str(), &output,
&retval, this->GetOption("WDIR"), this->GeneratorVerbose, 0);
if ( !res || retval )
{
std::string tmpFile = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
tmpFile += "/Deb.log";
cmGeneratedFileStream ofs(tmpFile.c_str());
ofs << "# Run command: " << cmd.c_str() << std::endl
<< "# Working directory: " << toplevel << std::endl
<< "# Output:" << std::endl
<< output.c_str() << std::endl;
cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem running tar command: "
<< cmd.c_str() << std::endl
<< "Please check " << tmpFile.c_str() << " for errors" << std::endl);
return 0;
}
// ar -r your-package-name.deb debian-binary control.tar.gz data.tar.gz
// since debian packages require BSD ar (most Linux distros and even
// FreeBSD and NetBSD ship GNU ar) we use a copy of OpenBSD ar here.
std::vector<std::string> arFiles;
std::string topLevelString = this->GetOption("WDIR");
topLevelString += "/";
arFiles.push_back(topLevelString + "debian-binary");
arFiles.push_back(topLevelString + "control.tar.gz");
arFiles.push_back(topLevelString + "data.tar.gz");
std::string outputFileName = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
outputFileName += "/";
outputFileName += this->GetOption("CPACK_OUTPUT_FILE_NAME");
res = ar_append(outputFileName.c_str(), arFiles);
if ( res!=0 )
{
std::string tmpFile = this->GetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME");
tmpFile += "/Deb.log";
cmGeneratedFileStream ofs(tmpFile.c_str());
ofs << "# Problem creating archive using: " << res << std::endl;
return 0;
}
return 1;
}
bool cmCPackDebGenerator::SupportsComponentInstallation() const
{
if (IsOn("CPACK_DEB_COMPONENT_INSTALL"))
{
return true;
}
else
{
return false;
}
}
std::string cmCPackDebGenerator::GetComponentInstallDirNameSuffix(
const std::string& componentName)
{
if (componentPackageMethod == ONE_PACKAGE_PER_COMPONENT) {
return componentName;
}
if (componentPackageMethod == ONE_PACKAGE) {
return std::string("ALL_COMPONENTS_IN_ONE");
}
// We have to find the name of the COMPONENT GROUP
// the current COMPONENT belongs to.
std::string groupVar = "CPACK_COMPONENT_" +
cmSystemTools::UpperCase(componentName) + "_GROUP";
if (NULL != GetOption(groupVar.c_str()))
{
return std::string(GetOption(groupVar.c_str()));
}
else
{
return componentName;
}
}
// The following code is taken from OpenBSD ar:
// http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ar/
// It has been slightly modified:
// -return error codes instead exit() in functions
// -use the stdio file I/O functions instead the file descriptor based ones
// -merged into one cxx file
// -no additional options supported
// The coding style hasn't been modified.
/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Hugh Smith at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define ARMAG "!<arch>\n" /* ar "magic number" */
#define SARMAG 8 /* strlen(ARMAG); */
#define AR_EFMT1 "#1/" /* extended format #1 */
#define ARFMAG "`\n"
/* Header format strings. */
#define HDR1 "%s%-13d%-12ld%-6u%-6u%-8o%-10lld%2s"
#define HDR2 "%-16.16s%-12ld%-6u%-6u%-8o%-10lld%2s"
struct ar_hdr {
char ar_name[16]; /* name */
char ar_date[12]; /* modification time */
char ar_uid[6]; /* user id */
char ar_gid[6]; /* group id */
char ar_mode[8]; /* octal file permissions */
char ar_size[10]; /* size in bytes */
char ar_fmag[2]; /* consistency check */
};
/* Set up file copy. */
#define SETCF(from, fromname, to, toname, pad) { \
cf.rFile = from; \
cf.rname = fromname; \
cf.wFile = to; \
cf.wname = toname; \
cf.flags = pad; \
}
/* File copy structure. */
typedef struct {
FILE* rFile; /* read file descriptor */
const char *rname; /* read name */
FILE* wFile; /* write file descriptor */
const char *wname; /* write name */
#define NOPAD 0x00 /* don't pad */
#define WPAD 0x02 /* pad on writes */
unsigned int flags; /* pad flags */
} CF;
/* misc.c */
static const char * ar_rname(const char *path)
{
const char *ind = strrchr(path, '/');
return (ind ) ? ind + 1 : path;
}
/* archive.c */
typedef struct ar_hdr HDR;
static char ar_hb[sizeof(HDR) + 1]; /* real header */
static size_t ar_already_written;
/* copy_ar --
* Copy size bytes from one file to another - taking care to handle the
* extra byte (for odd size files) when reading archives and writing an
* extra byte if necessary when adding files to archive. The length of
* the object is the long name plus the object itself; the variable
* already_written gets set if a long name was written.
*
* The padding is really unnecessary, and is almost certainly a remnant
* of early archive formats where the header included binary data which
* a PDP-11 required to start on an even byte boundary. (Or, perhaps,
* because 16-bit word addressed copies were faster?) Anyhow, it should
* have been ripped out long ago.
*/
static int copy_ar(CF *cfp, off_t size)
{
static char pad = '\n';
off_t sz = size;
size_t nr, nw;
char buf[8*1024];
if (sz == 0)
return 0;
FILE* from = cfp->rFile;
FILE* to = cfp->wFile;
while (sz &&
(nr = fread(buf, 1, sz < static_cast<off_t>(sizeof(buf))
? static_cast<size_t>(sz) : sizeof(buf), from ))
> 0) {
sz -= nr;
for (size_t off = 0; off < nr; nr -= off, off += nw)
if ((nw = fwrite(buf + off, 1, nr, to)) < nr)
return -1;
}
if (sz)
return -2;
if (cfp->flags & WPAD && (size + ar_already_written) & 1
&& fwrite(&pad, 1, 1, to) != 1)
return -4;
return 0;
}
/* put_arobj -- Write an archive member to a file. */
static int put_arobj(CF *cfp, struct stat *sb)
{
int result = 0;
struct ar_hdr *hdr;
/* If passed an sb structure, reading a file from disk. Get stat(2)
* information, build a name and construct a header. (Files are named
* by their last component in the archive.) */
const char* name = ar_rname(cfp->rname);
(void)stat(cfp->rname, sb);
/* If not truncating names and the name is too long or contains
* a space, use extended format 1. */
size_t lname = strlen(name);
uid_t uid = sb->st_uid;
gid_t gid = sb->st_gid;
if (uid > USHRT_MAX) {
uid = USHRT_MAX;
}
if (gid > USHRT_MAX) {
gid = USHRT_MAX;
}
if (lname > sizeof(hdr->ar_name) || strchr(name, ' '))
(void)sprintf(ar_hb, HDR1, AR_EFMT1, (int)lname,
(long int)sb->st_mtime, uid, gid, sb->st_mode,
(long long)sb->st_size + lname, ARFMAG);
else {
lname = 0;
(void)sprintf(ar_hb, HDR2, name,
(long int)sb->st_mtime, uid, gid, sb->st_mode,
(long long)sb->st_size, ARFMAG);
}
off_t size = sb->st_size;
if (fwrite(ar_hb, 1, sizeof(HDR), cfp->wFile) != sizeof(HDR))
return -1;
if (lname) {
if (fwrite(name, 1, lname, cfp->wFile) != lname)
return -2;
ar_already_written = lname;
}
result = copy_ar(cfp, size);
ar_already_written = 0;
return result;
}
/* append.c */
/* append --
* Append files to the archive - modifies original archive or creates
* a new archive if named archive does not exist.
*/
static int ar_append(const char* archive,const std::vector<std::string>& files)
{
int eval = 0;
FILE* aFile = fopen(archive, "wb+");
if (aFile!=NULL) {
fwrite(ARMAG, SARMAG, 1, aFile);
if (fseek(aFile, 0, SEEK_END) != -1) {
CF cf;
struct stat sb;
/* Read from disk, write to an archive; pad on write. */
SETCF(NULL, 0, aFile, archive, WPAD);
for(std::vector<std::string>::const_iterator fileIt = files.begin();
fileIt!=files.end(); ++fileIt) {
const char* filename = fileIt->c_str();
FILE* file = fopen(filename, "rb");
if (file == NULL) {
eval = -1;
continue;
}
cf.rFile = file;
cf.rname = filename;
int result = put_arobj(&cf, &sb);
(void)fclose(file);
if (result!=0) {
eval = -2;
break;
}
}
}
else {
eval = -3;
}
fclose(aFile);
}
else {
eval = -4;
}
return eval;
}
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