/*============================================================================ 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 #include #include // 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& 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::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::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 std::string localToplevel(initialTopLevel); std::string packageFileName( cmSystemTools::GetParentDirectory(toplevel.c_str()) ); std::string outputFileName( std::string(this->GetOption("CPACK_PACKAGE_FILE_NAME")) +"-"+compGIt->first + this->GetOutputExtension() ); localToplevel += "/"+ compGIt->first; /* 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",compGIt->first.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); } } // CPACK_COMPONENTS_IGNORE_GROUPS is set // We build 1 package per component else { std::map::iterator compIt; for (compIt=this->Components.begin(); compIt!=this->Components.end(); ++compIt ) { std::string localToplevel(initialTopLevel); std::string packageFileName( cmSystemTools::GetParentDirectory(toplevel.c_str()) ); std::string outputFileName( std::string(this->GetOption("CPACK_PACKAGE_FILE_NAME") ) +"-"+compIt->first + this->GetOutputExtension()); localToplevel += "/"+ compIt->first; /* 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()); this->SetOption("CPACK_DEB_PACKAGE_COMPONENT",compIt->first.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::PackageComponentsAllInOne(bool allComponent) { 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")); // all GROUP in one vs all COMPONENT in one if (allComponent) { compInstDirName = "ALL_COMPONENTS_IN_ONE"; } else { compInstDirName = "ALL_GROUPS_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 (SupportsComponentInstallation()) { // 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 (allComponentInOne || (allGroupInOne && (!this->ComponentGroups.empty())) ) { return PackageComponentsAllInOne(allComponentInOne); } // 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 if ((!this->ComponentGroups.empty()) || (ignoreComponentGroup)) { return PackageComponents(ignoreComponentGroup); } } // 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::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; 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 installDirs; for (std::vector::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::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 = "\""; 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 controlExtraList; cmSystemTools::ExpandListArgument(controlExtra, controlExtraList); for(std::vector::iterator i = controlExtraList.begin(); i != controlExtraList.end(); ++i) { std::string filenamename = cmsys::SystemTools::GetFilenameName(i->c_str()); std::string localcopy = toplevel; 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 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 (ignoreComponentGroup) { return componentName; } if (allComponentInOne) { 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())) { if (allGroupInOne) { return std::string("ALL_GROUPS_IN_ONE"); } else { 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 #include #include #include #include #define ARMAG "!\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(sizeof(buf)) ? static_cast(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& 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::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; }