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-rw-r--r--apt-pkg/aptconfiguration.cc83
1 files changed, 68 insertions, 15 deletions
diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc
index bc385b2dc..4324f0e63 100644
--- a/apt-pkg/aptconfiguration.cc
+++ b/apt-pkg/aptconfiguration.cc
@@ -8,6 +8,8 @@
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include <config.h>
+
#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/error.h>
@@ -18,6 +20,7 @@
#include <sys/types.h>
#include <dirent.h>
#include <stdio.h>
+#include <fcntl.h>
#include <algorithm>
#include <string>
@@ -57,10 +60,10 @@ const Configuration::getCompressionTypes(bool const &Cached) {
if ((*o).empty() == true)
continue;
// ignore types we have no method ready to use
- if (_config->Exists(string("Acquire::CompressionTypes::").append(*o)) == false)
+ if (_config->Exists(std::string("Acquire::CompressionTypes::").append(*o)) == false)
continue;
// ignore types we have no app ready to use
- string const appsetting = string("Dir::Bin::").append(*o);
+ std::string const appsetting = std::string("Dir::Bin::").append(*o);
if (_config->Exists(appsetting) == true) {
std::string const app = _config->FindFile(appsetting.c_str(), "");
if (app.empty() == false && FileExists(app) == false)
@@ -81,7 +84,7 @@ const Configuration::getCompressionTypes(bool const &Cached) {
if (std::find(types.begin(),types.end(),Types->Tag) != types.end())
continue;
// ignore types we have no app ready to use
- string const appsetting = string("Dir::Bin::").append(Types->Value);
+ std::string const appsetting = std::string("Dir::Bin::").append(Types->Value);
if (appsetting.empty() == false && _config->Exists(appsetting) == true) {
std::string const app = _config->FindFile(appsetting.c_str(), "");
if (app.empty() == false && FileExists(app) == false)
@@ -93,7 +96,7 @@ const Configuration::getCompressionTypes(bool const &Cached) {
// add the special "uncompressed" type
if (std::find(types.begin(), types.end(), "uncompressed") == types.end())
{
- string const uncompr = _config->FindFile("Dir::Bin::uncompressed", "");
+ std::string const uncompr = _config->FindFile("Dir::Bin::uncompressed", "");
if (uncompr.empty() == true || FileExists(uncompr) == true)
types.push_back("uncompressed");
}
@@ -326,29 +329,79 @@ std::vector<std::string> const Configuration::getArchitectures(bool const &Cache
// FIXME: It is a bit unclean to have debian specific code here…
if (archs.empty() == true) {
archs.push_back(arch);
- string dpkgcall = _config->Find("Dir::Bin::dpkg", "dpkg");
- std::vector<string> const dpkgoptions = _config->FindVector("DPkg::options");
- for (std::vector<string>::const_iterator o = dpkgoptions.begin();
- o != dpkgoptions.end(); ++o)
- dpkgcall.append(" ").append(*o);
- dpkgcall.append(" --print-foreign-architectures 2> /dev/null");
- FILE *dpkg = popen(dpkgcall.c_str(), "r");
+
+ // Generate the base argument list for dpkg
+ std::vector<const char *> Args;
+ string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+ {
+ string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
+ size_t dpkgChrootLen = dpkgChrootDir.length();
+ if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0) {
+ if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
+ --dpkgChrootLen;
+ Tmp = Tmp.substr(dpkgChrootLen);
+ }
+ }
+ Args.push_back(Tmp.c_str());
+
+ // Stick in any custom dpkg options
+ ::Configuration::Item const *Opts = _config->Tree("DPkg::Options");
+ if (Opts != 0) {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ Args.push_back(Opts->Value.c_str());
+ }
+ }
+
+ Args.push_back("--print-foreign-architectures");
+ Args.push_back(NULL);
+
+ int external[2] = {-1, -1};
+ if (pipe(external) != 0)
+ {
+ _error->WarningE("getArchitecture", "Can't create IPC pipe for dpkg --print-foreign-architectures");
+ return archs;
+ }
+
+ pid_t dpkgMultiArch = ExecFork();
+ if (dpkgMultiArch == 0) {
+ close(external[0]);
+ std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
+ if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0)
+ _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --print-foreign-architectures", chrootDir.c_str());
+ int const nullfd = open("/dev/null", O_RDONLY);
+ dup2(nullfd, STDIN_FILENO);
+ dup2(external[1], STDOUT_FILENO);
+ dup2(nullfd, STDERR_FILENO);
+ execvp(Args[0], (char**) &Args[0]);
+ _error->WarningE("getArchitecture", "Can't detect foreign architectures supported by dpkg!");
+ _exit(100);
+ }
+ close(external[1]);
+
+ FILE *dpkg = fdopen(external[0], "r");
char buf[1024];
if(dpkg != NULL) {
- if (fgets(buf, sizeof(buf), dpkg) != NULL) {
+ while (fgets(buf, sizeof(buf), dpkg) != NULL) {
char* arch = strtok(buf, " ");
while (arch != NULL) {
for (; isspace(*arch) != 0; ++arch);
if (arch[0] != '\0') {
char const* archend = arch;
for (; isspace(*archend) == 0 && *archend != '\0'; ++archend);
- archs.push_back(string(arch, (archend - arch)));
+ string a(arch, (archend - arch));
+ if (std::find(archs.begin(), archs.end(), a) == archs.end())
+ archs.push_back(a);
}
arch = strtok(NULL, " ");
}
}
- pclose(dpkg);
+ fclose(dpkg);
}
+ ExecWait(dpkgMultiArch, "dpkg --print-foreign-architectures", true);
return archs;
}
@@ -441,7 +494,7 @@ Configuration::Compressor::Compressor(char const *name, char const *extension,
char const *binary,
char const *compressArg, char const *uncompressArg,
unsigned short const cost) {
- std::string const config = string("APT:Compressor::").append(name).append("::");
+ std::string const config = std::string("APT:Compressor::").append(name).append("::");
Name = _config->Find(std::string(config).append("Name"), name);
Extension = _config->Find(std::string(config).append("Extension"), extension);
Binary = _config->Find(std::string(config).append("Binary"), binary);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 03:29:56 +0000