// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: rsh.cc,v 1.2 2001/02/20 07:03:18 jgg Exp $
+// $Id: rsh.cc,v 1.6.2.1 2004/01/16 18:58:50 mdz Exp $
/* ######################################################################
RSH method - Transfer files via rsh compatible program
##################################################################### */
/*}}}*/
-// Iclude Files /*{{{*/
-#include "rsh.h"
+// Include Files /*{{{*/
+#include <config.h>
+
#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/strutl.h>
+#include <stdlib.h>
+#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
-#include <utime.h>
#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
+#include "rsh.h"
+
+#include <apti18n.h>
/*}}}*/
-const char *Prog;
unsigned long TimeOut = 120;
+Configuration::Item const *RshOptions = 0;
time_t RSHMethod::FailTime = 0;
-string RSHMethod::FailFile;
+std::string RSHMethod::FailFile;
int RSHMethod::FailFd = -1;
// RSHConn::RSHConn - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-RSHConn::RSHConn(URI Srv) : Len(0), WriteFd(-1), ReadFd(-1),
- ServerName(Srv), Process(-1) {}
+RSHConn::RSHConn(std::string const &pProg, URI Srv) : Len(0), WriteFd(-1), ReadFd(-1),
+ ServerName(Srv), Prog(pProg), Process(-1) {
+ Buffer[0] = '\0';
+}
/*}}}*/
// RSHConn::RSHConn - Destructor /*{{{*/
// ---------------------------------------------------------------------
if (Process != -1)
return true;
- if (Connect(ServerName.Host,ServerName.User) == false)
+ if (Connect(ServerName.Host,ServerName.Port,ServerName.User) == false)
return false;
return true;
// RSHConn::Connect - Fire up rsh and connect /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool RSHConn::Connect(string Host, string User)
+bool RSHConn::Connect(std::string Host, unsigned int Port, std::string User)
{
+ char *PortStr = NULL;
+ if (Port != 0)
+ {
+ if (asprintf (&PortStr, "%d", Port) == -1 || PortStr == NULL)
+ return _error->Errno("asprintf", _("Failed"));
+ }
+
// Create the pipes
int Pipes[4] = {-1,-1,-1,-1};
if (pipe(Pipes) != 0 || pipe(Pipes+2) != 0)
{
- _error->Errno("pipe","Failed to create IPC pipe to subprocess");
+ _error->Errno("pipe",_("Failed to create IPC pipe to subprocess"));
for (int I = 0; I != 4; I++)
close(Pipes[I]);
return false;
// The child
if (Process == 0)
{
- const char *Args[6];
- int i = 0;
+ const char *Args[400];
+ unsigned int i = 0;
dup2(Pipes[1],STDOUT_FILENO);
dup2(Pipes[2],STDIN_FILENO);
// Probably should do
// dup2(open("/dev/null",O_RDONLY),STDERR_FILENO);
- Args[i++] = Prog;
+ Args[i++] = Prog.c_str();
+
+ // Insert user-supplied command line options
+ Configuration::Item const *Opts = RshOptions;
+ if (Opts != 0)
+ {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ Args[i++] = Opts->Value.c_str();
+ }
+ }
+
if (User.empty() == false) {
Args[i++] = "-l";
Args[i++] = User.c_str();
}
+ if (PortStr != NULL) {
+ Args[i++] = "-p";
+ Args[i++] = PortStr;
+ }
if (Host.empty() == false) {
Args[i++] = Host.c_str();
}
exit(100);
}
+ if (PortStr != NULL)
+ free(PortStr);
+
ReadFd = Pipes[0];
WriteFd = Pipes[3];
SetNonBlock(Pipes[0],true);
close(Pipes[2]);
return true;
+}
+bool RSHConn::Connect(std::string Host, std::string User)
+{
+ return Connect(Host, 0, User);
}
/*}}}*/
// RSHConn::ReadLine - Very simple buffered read with timeout /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool RSHConn::ReadLine(string &Text)
+bool RSHConn::ReadLine(std::string &Text)
{
if (Process == -1 || ReadFd == -1)
return false;
continue;
I++;
- Text = string(Buffer,I);
+ Text = std::string(Buffer,I);
memmove(Buffer,Buffer+I,Len - I);
Len -= I;
return true;
if (WaitFd(ReadFd,false,TimeOut) == false)
{
Close();
- return _error->Error("Connection timeout");
+ return _error->Error(_("Connection timeout"));
}
// Suck it back
int Res = read(ReadFd,Buffer + Len,sizeof(Buffer) - Len);
if (Res <= 0)
{
- _error->Errno("read","Read error");
+ _error->Errno("read",_("Read error"));
Close();
return false;
}
Len += Res;
}
- return _error->Error("A response overflowed the buffer.");
+ return _error->Error(_("A response overflowed the buffer."));
}
/*}}}*/
// RSHConn::WriteMsg - Send a message with optional remote sync. /*{{{*/
// ---------------------------------------------------------------------
/* The remote sync flag appends a || echo which will insert blank line
once the command completes. */
-bool RSHConn::WriteMsg(string &Text,bool Sync,const char *Fmt,...)
+bool RSHConn::WriteMsg(std::string &Text,bool Sync,const char *Fmt,...)
{
va_list args;
va_start(args,Fmt);
- // sprintf the description
- char S[512];
- vsnprintf(S,sizeof(S) - 4,Fmt,args);
+ // sprintf into a buffer
+ char Tmp[1024];
+ vsnprintf(Tmp,sizeof(Tmp),Fmt,args);
+ va_end(args);
+
+ // concat to create the real msg
+ std::string Msg;
if (Sync == true)
- strcat(S," 2> /dev/null || echo\n");
+ Msg = std::string(Tmp) + " 2> /dev/null || echo\n";
else
- strcat(S," 2> /dev/null\n");
+ Msg = std::string(Tmp) + " 2> /dev/null\n";
// Send it off
+ const char *S = Msg.c_str();
unsigned long Len = strlen(S);
unsigned long Start = 0;
while (Len != 0)
{
Close();
- return _error->Error("Connection timeout");
+ return _error->Error(_("Connection timeout"));
}
int Res = write(WriteFd,S + Start,Len);
if (Res <= 0)
{
- _error->Errno("write","Write Error");
+ _error->Errno("write",_("Write error"));
Close();
return false;
}
/*}}}*/
// RSHConn::Size - Return the size of the file /*{{{*/
// ---------------------------------------------------------------------
-/* Right now for successfull transfer the file size must be known in
+/* Right now for successful transfer the file size must be known in
advance. */
-bool RSHConn::Size(const char *Path,unsigned long &Size)
+bool RSHConn::Size(const char *Path,unsigned long long &Size)
{
// Query the size
- string Msg;
+ std::string Msg;
Size = 0;
if (WriteMsg(Msg,true,"find %s -follow -printf '%%s\\n'",Path) == false)
// FIXME: Sense if the bad reply is due to a File Not Found.
char *End;
- Size = strtoul(Msg.c_str(),&End,10);
+ Size = strtoull(Msg.c_str(),&End,10);
if (End == Msg.c_str())
- return _error->Error("File Not Found");
+ return _error->Error(_("File not found"));
return true;
}
/*}}}*/
{
Time = time(&Time);
// Query the mod time
- string Msg;
+ std::string Msg;
if (WriteMsg(Msg,true,"TZ=UTC find %s -follow -printf '%%TY%%Tm%%Td%%TH%%TM%%TS\\n'",Path) == false)
return false;
// Parse it
- StrToTime(Msg,Time);
- return true;
+ return FTPMDTMStrToTime(Msg.c_str(), Time);
}
/*}}}*/
// RSHConn::Get - Get a file /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool RSHConn::Get(const char *Path,FileFd &To,unsigned long Resume,
- MD5Summation &MD5,bool &Missing, unsigned long Size)
+bool RSHConn::Get(const char *Path,FileFd &To,unsigned long long Resume,
+ Hashes &Hash,bool &Missing, unsigned long long Size)
{
Missing = false;
return false;
if (Resume != 0) {
- if (MD5.AddFD(To.Fd(),Resume) == false) {
- _error->Errno("read","Problem hashing file");
+ if (Hash.AddFD(To,Resume) == false) {
+ _error->Errno("read",_("Problem hashing file"));
return false;
}
}
// FIXME: Detect file-not openable type errors.
- string Jnk;
+ std::string Jnk;
if (WriteMsg(Jnk,false,"dd if=%s bs=2048 skip=%u", Path, Resume / 2048) == false)
return false;
// Copy loop
- unsigned int MyLen = Resume;
+ unsigned long long MyLen = Resume;
unsigned char Buffer[4096];
while (MyLen < Size)
{
if (WaitFd(ReadFd,false,TimeOut) == false)
{
Close();
- return _error->Error("Data socket timed out");
+ return _error->Error(_("Data socket timed out"));
}
// Read the data..
if (Res == 0)
{
Close();
- return _error->Error("Connection closed prematurely");
+ return _error->Error(_("Connection closed prematurely"));
}
if (Res < 0)
}
MyLen += Res;
- MD5.Add(Buffer,Res);
+ Hash.Add(Buffer,Res);
if (To.Write(Buffer,Res) == false)
{
Close();
/*}}}*/
// RSHMethod::RSHMethod - Constructor /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-RSHMethod::RSHMethod() : pkgAcqMethod("1.0")
+RSHMethod::RSHMethod(std::string &&pProg) : aptMethod(std::move(pProg),"1.0",SendConfig)
{
signal(SIGTERM,SigTerm);
signal(SIGINT,SigTerm);
Server = 0;
FailFd = -1;
-};
+}
+ /*}}}*/
+// RSHMethod::Configuration - Handle a configuration message /*{{{*/
+// ---------------------------------------------------------------------
+bool RSHMethod::Configuration(std::string Message)
+{
+ // enabling privilege dropping for this method requires configuration…
+ // … which is otherwise lifted straight from root, so use it by default.
+ _config->Set(std::string("Binary::") + Binary + "::APT::Sandbox::User", "");
+
+ if (aptMethod::Configuration(Message) == false)
+ return false;
+
+ std::string const timeconf = std::string("Acquire::") + Binary + "::Timeout";
+ TimeOut = _config->FindI(timeconf, TimeOut);
+ std::string const optsconf = std::string("Acquire::") + Binary + "::Options";
+ RshOptions = _config->Tree(optsconf.c_str());
+
+ return true;
+}
/*}}}*/
// RSHMethod::SigTerm - Clean up and timestamp the files on exit /*{{{*/
// ---------------------------------------------------------------------
/* */
-void RSHMethod::SigTerm(int sig)
+void RSHMethod::SigTerm(int)
{
if (FailFd == -1)
_exit(100);
- close(FailFd);
- // Timestamp
- struct utimbuf UBuf;
- UBuf.actime = FailTime;
- UBuf.modtime = FailTime;
- utime(FailFile.c_str(),&UBuf);
+ // Transfer the modification times
+ struct timeval times[2];
+ times[0].tv_sec = FailTime;
+ times[1].tv_sec = FailTime;
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(FailFile.c_str(), times);
+ close(FailFd);
_exit(100);
}
// Connect to the server
if (Server == 0 || Server->Comp(Get) == false) {
delete Server;
- Server = new RSHConn(Get);
+ Server = new RSHConn(Binary, Get);
}
// Could not connect is a transient error..
// We say this mainly because the pause here is for the
// ssh connection that is still going
- Status("Connecting to %s", Get.Host.c_str());
+ Status(_("Connecting to %s"), Get.Host.c_str());
// Get the files information
- unsigned long Size;
+ unsigned long long Size;
if (Server->Size(File,Size) == false ||
Server->ModTime(File,FailTime) == false)
{
//Fail(true);
- //_error->Error("File Not Found"); // Will be handled by Size
+ //_error->Error(_("File not found")); // Will be handled by Size
return false;
}
Res.Size = Size;
// See if the file exists
struct stat Buf;
if (stat(Itm->DestFile.c_str(),&Buf) == 0) {
- if (Size == (unsigned)Buf.st_size && FailTime == Buf.st_mtime) {
+ if (Size == (unsigned long long)Buf.st_size && FailTime == Buf.st_mtime) {
Res.Size = Buf.st_size;
Res.LastModified = Buf.st_mtime;
Res.ResumePoint = Buf.st_size;
}
// Resume?
- if (FailTime == Buf.st_mtime && Size > (unsigned)Buf.st_size)
+ if (FailTime == Buf.st_mtime && Size > (unsigned long long)Buf.st_size)
Res.ResumePoint = Buf.st_size;
}
// Open the file
- MD5Summation MD5;
+ Hashes Hash(Itm->ExpectedHashes);
{
FileFd Fd(Itm->DestFile,FileFd::WriteAny);
if (_error->PendingError() == true)
URIStart(Res);
FailFile = Itm->DestFile;
- FailFile.c_str(); // Make sure we dont do a malloc in the signal handler
+ FailFile.c_str(); // Make sure we don't do a malloc in the signal handler
FailFd = Fd.Fd();
bool Missing;
- if (Server->Get(File,Fd,Res.ResumePoint,MD5,Missing,Res.Size) == false)
+ if (Server->Get(File,Fd,Res.ResumePoint,Hash,Missing,Res.Size) == false)
{
Fd.Close();
// Timestamp
- struct utimbuf UBuf;
- UBuf.actime = FailTime;
- UBuf.modtime = FailTime;
- utime(FailFile.c_str(),&UBuf);
+ struct timeval times[2];
+ times[0].tv_sec = FailTime;
+ times[1].tv_sec = FailTime;
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(FailFile.c_str(), times);
// If the file is missing we hard fail otherwise transient fail
if (Missing == true)
}
Res.Size = Fd.Size();
+ struct timeval times[2];
+ times[0].tv_sec = FailTime;
+ times[1].tv_sec = FailTime;
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(Fd.Name().c_str(), times);
+ FailFd = -1;
}
Res.LastModified = FailTime;
- Res.MD5Sum = MD5.Result();
-
- // Timestamp
- struct utimbuf UBuf;
- UBuf.actime = FailTime;
- UBuf.modtime = FailTime;
- utime(Queue->DestFile.c_str(),&UBuf);
- FailFd = -1;
+ Res.TakeHashes(Hash);
URIDone(Res);
}
/*}}}*/
-int main(int argc, const char *argv[])
+int main(int, const char *argv[])
{
- RSHMethod Mth;
- Prog = strrchr(argv[0],'/');
- Prog++;
- return Mth.Run();
+ return RSHMethod(flNotDir(argv[0])).Run();
}
projects / apt.git / blobdiff