From 234edfd074bd8a356494d5d8df8774cf1b096fd8 Mon Sep 17 00:00:00 2001 From: Arch Librarian Date: Mon, 20 Sep 2004 16:56:45 +0000 Subject: apt-extracttemplates cleanup Author: tausq Date: 2001-02-25 04:53:59 GMT apt-extracttemplates cleanup --- cmdline/debfile.cc | 304 ----------------------------------------------------- 1 file changed, 304 deletions(-) delete mode 100644 cmdline/debfile.cc (limited to 'cmdline/debfile.cc') diff --git a/cmdline/debfile.cc b/cmdline/debfile.cc deleted file mode 100644 index 0aa246226..000000000 --- a/cmdline/debfile.cc +++ /dev/null @@ -1,304 +0,0 @@ -#include -#include -#include -#include -#include - -#include "debfile.h" - -pkgCache *DebFile::Cache = 0; - -DebFile::DebFile(const char *debfile) - : File(debfile, FileFd::ReadOnly), Control(0), Package(0), Version(0), DepVer(0), PreDepVer(0), DepOp(0), PreDepOp(0), Config(0), Template(0), Which(None) -{ -} - -DebFile::~DebFile() -{ - delete [] Control; - delete [] Config; - delete [] Template; -} - -char *DebFile::GetInstalledVer(const char *package) -{ - char *ver = 0; - - pkgCache::PkgIterator Pkg = Cache->FindPkg(package); - if (Pkg.end() == false) - { - pkgCache::VerIterator V = Pkg.CurrentVer(); - if (V.end() == false) - { - ver = strdup(V.VerStr()); - } - } - - return ver; -} - -bool DebFile::Go() -{ - ARArchive AR(File); - const ARArchive::Member *Member = AR.FindMember("control.tar.gz"); - if (Member == 0) - { - fprintf(stderr, "This is not a valid DEB archive.\n"); - return false; - } - - if (File.Seek(Member->Start) == false) - { - return false; - } - - ExtractTar Tar(File, Member->Size); - return Tar.Go(*this); -} - -bool DebFile::DoItem(Item &I, int &Fd) -{ - if (strcmp(I.Name, "control") == 0) - { - delete [] Control; - Control = new char[I.Size+1]; - Control[I.Size] = 0; - Which = IsControl; - ControlLen = I.Size; - // make it call the Process method below. this is so evil - Fd = -2; - } - else if (strcmp(I.Name, "config") == 0) - { - delete [] Config; - Config = new char[I.Size+1]; - Config[I.Size] = 0; - Which = IsConfig; - Fd = -2; - } - else if (strcmp(I.Name, "templates") == 0) - { - delete [] Template; - Template = new char[I.Size+1]; - Template[I.Size] = 0; - Which = IsTemplate; - Fd = -2; - } - else - { - Fd = -1; - } - return true; -} - -bool DebFile::Process(Item &I, const unsigned char *data, - unsigned long size, unsigned long pos) -{ - switch (Which) - { - case IsControl: - memcpy(Control + pos, data, size); - break; - case IsConfig: - memcpy(Config + pos, data, size); - break; - case IsTemplate: - memcpy(Template + pos, data, size); - break; - default: /* throw it away */ ; - } - return true; -} - -bool DebFile::ParseInfo() -{ - if (Control == NULL) return false; - pkgTagSection Section; - Section.Scan(Control, ControlLen); - - const char *pkgtmp = Section.FindS("Package").c_str(); - Package = CopyString(pkgtmp, strlen(pkgtmp)); - Version = GetInstalledVer(Package); - - const char *Start, *Stop; - if (Section.Find("Depends", Start, Stop) == true) - { - while (1) - { - char *P = 0, *V = 0; - unsigned int Op; - Start = ParseDepends(Start, Stop, P, V, Op); - if (Start == 0) return false; - if (strcmp(P, "debconf") == 0) - { - DepVer = V; - DepOp = Op; - delete[] P; - break; - } - else - { - delete[] P; - delete[] V; - } - if (Start == Stop) break; - } - } - - if (Section.Find("Pre-Depends", Start, Stop) == true) - { - while (1) - { - char *P = 0, *V = 0; - unsigned int Op; - Start = ParseDepends(Start, Stop, P, V, Op); - if (Start == 0) return false; - if (strcmp(P, "debconf") == 0) - { - PreDepVer = V; - PreDepOp = Op; - delete[] P; - break; - } - else - { - delete[] P; - delete[] V; - } - if (Start == Stop) break; - } - } - - return true; -} - -char *DebFile::CopyString(const char *start, unsigned int len) -{ - char *s = new char[len + 1]; - s[len] = 0; - memcpy(s, start, len); - return s; -} - -const char *DebFile::ParseDepends(const char *Start,const char *Stop, - char *&Package, char *&Ver, - unsigned int &Op) -{ - // Strip off leading space - for (;Start != Stop && isspace(*Start) != 0; Start++); - - // Parse off the package name - const char *I = Start; - for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' && - *I != ',' && *I != '|'; I++); - - // Malformed, no '(' - if (I != Stop && *I == ')') - return 0; - - if (I == Start) - return 0; - - // Stash the package name - Package = CopyString(Start, I - Start); - - // Skip white space to the '(' - for (;I != Stop && isspace(*I) != 0 ; I++); - - // Parse a version - if (I != Stop && *I == '(') - { - // Skip the '(' - for (I++; I != Stop && isspace(*I) != 0 ; I++); - if (I + 3 >= Stop) - return 0; - - // Determine the operator - switch (*I) - { - case '<': - I++; - if (*I == '=') - { - I++; - Op = pkgCache::Dep::LessEq; - break; - } - - if (*I == '<') - { - I++; - Op = pkgCache::Dep::Less; - break; - } - - // < is the same as <= and << is really Cs < for some reason - Op = pkgCache::Dep::LessEq; - break; - - case '>': - I++; - if (*I == '=') - { - I++; - Op = pkgCache::Dep::GreaterEq; - break; - } - - if (*I == '>') - { - I++; - Op = pkgCache::Dep::Greater; - break; - } - - // > is the same as >= and >> is really Cs > for some reason - Op = pkgCache::Dep::GreaterEq; - break; - - case '=': - Op = pkgCache::Dep::Equals; - I++; - break; - - // HACK around bad package definitions - default: - Op = pkgCache::Dep::Equals; - break; - } - - // Skip whitespace - for (;I != Stop && isspace(*I) != 0; I++); - Start = I; - for (;I != Stop && *I != ')'; I++); - if (I == Stop || Start == I) - return 0; - - // Skip trailing whitespace - const char *End = I; - for (; End > Start && isspace(End[-1]); End--); - - Ver = CopyString(Start, End - Start); - I++; - } - else - { - Ver = CopyString("", 0); - Op = pkgCache::Dep::NoOp; - } - - // Skip whitespace - for (;I != Stop && isspace(*I) != 0; I++); - - if (I != Stop && *I == '|') - Op |= pkgCache::Dep::Or; - - if (I == Stop || *I == ',' || *I == '|') - { - if (I != Stop) - for (I++; I != Stop && isspace(*I) != 0; I++); - return I; - } - - return 0; -} -- cgit v1.2.3