X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/a7c835af20feeb470238ead3bda36af978c2600f..72ed5f14b558984bd9c5731f82345b10cb2df2ca:/methods/rsh.cc diff --git a/methods/rsh.cc b/methods/rsh.cc index 619cd9508..4d133951f 100644 --- a/methods/rsh.cc +++ b/methods/rsh.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: rsh.cc,v 1.4 2001/03/13 06:51:46 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 @@ -10,31 +10,43 @@ ##################################################################### */ /*}}}*/ -// Iclude Files /*{{{*/ -#include "rsh.h" -#include +// Include Files /*{{{*/ +#include +#include +#include +#include +#include +#include +#include + +#include +#include #include #include -#include #include #include #include #include #include +#include "rsh.h" + +#include /*}}}*/ -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 /*{{{*/ // --------------------------------------------------------------------- @@ -71,7 +83,7 @@ bool RSHConn::Open() 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; @@ -80,13 +92,20 @@ bool RSHConn::Open() // 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; @@ -99,8 +118,8 @@ bool RSHConn::Connect(string Host, string User) // 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); @@ -108,11 +127,29 @@ bool RSHConn::Connect(string Host, string User) // 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(); } @@ -122,6 +159,9 @@ bool RSHConn::Connect(string Host, string User) exit(100); } + if (PortStr != NULL) + free(PortStr); + ReadFd = Pipes[0]; WriteFd = Pipes[3]; SetNonBlock(Pipes[0],true); @@ -130,12 +170,16 @@ bool RSHConn::Connect(string Host, string User) 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; @@ -155,7 +199,7 @@ bool RSHConn::ReadLine(string &Text) continue; I++; - Text = string(Buffer,I); + Text = std::string(Buffer,I); memmove(Buffer,Buffer+I,Len - I); Len -= I; return true; @@ -165,41 +209,46 @@ bool RSHConn::ReadLine(string &Text) 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) @@ -208,13 +257,13 @@ bool RSHConn::WriteMsg(string &Text,bool Sync,const char *Fmt,...) { 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; } @@ -230,12 +279,12 @@ bool RSHConn::WriteMsg(string &Text,bool Sync,const char *Fmt,...) /*}}}*/ // 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) @@ -244,9 +293,9 @@ bool RSHConn::Size(const char *Path,unsigned long &Size) // 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; } /*}}}*/ @@ -257,21 +306,20 @@ bool RSHConn::ModTime(const char *Path, time_t &Time) { 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, - Hashes &Hash,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; @@ -284,19 +332,19 @@ bool RSHConn::Get(const char *Path,FileFd &To,unsigned long Resume, return false; if (Resume != 0) { - if (Hash.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) { @@ -304,7 +352,7 @@ bool RSHConn::Get(const char *Path,FileFd &To,unsigned long Resume, if (WaitFd(ReadFd,false,TimeOut) == false) { Close(); - return _error->Error("Data socket timed out"); + return _error->Error(_("Data socket timed out")); } // Read the data.. @@ -312,7 +360,7 @@ bool RSHConn::Get(const char *Path,FileFd &To,unsigned long Resume, if (Res == 0) { Close(); - return _error->Error("Connection closed prematurely"); + return _error->Error(_("Connection closed prematurely")); } if (Res < 0) @@ -338,28 +386,48 @@ bool RSHConn::Get(const char *Path,FileFd &To,unsigned long Resume, // RSHMethod::RSHMethod - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -RSHMethod::RSHMethod() : pkgAcqMethod("1.0") +RSHMethod::RSHMethod(std::string const &pProg) : aptMethod(pProg.c_str(),"1.0",SendConfig), Prog(pProg) { 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::") + Prog + "::APT::Sandbox::User", ""); + + if (aptMethod::Configuration(Message) == false) + return false; + + std::string const timeconf = std::string("Acquire::") + Prog + "::Timeout"; + TimeOut = _config->FindI(timeconf, TimeOut); + std::string const optsconf = std::string("Acquire::") + Prog + "::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); } @@ -378,7 +446,7 @@ bool RSHMethod::Fetch(FetchItem *Itm) // Connect to the server if (Server == 0 || Server->Comp(Get) == false) { delete Server; - Server = new RSHConn(Get); + Server = new RSHConn(Prog, Get); } // Could not connect is a transient error.. @@ -390,15 +458,15 @@ bool RSHMethod::Fetch(FetchItem *Itm) // 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; @@ -414,7 +482,7 @@ bool RSHMethod::Fetch(FetchItem *Itm) // 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; @@ -423,12 +491,12 @@ bool RSHMethod::Fetch(FetchItem *Itm) } // 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 - Hashes Hash; + Hashes Hash(Itm->ExpectedHashes); { FileFd Fd(Itm->DestFile,FileFd::WriteAny); if (_error->PendingError() == true) @@ -437,7 +505,7 @@ bool RSHMethod::Fetch(FetchItem *Itm) 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; @@ -446,10 +514,11 @@ bool RSHMethod::Fetch(FetchItem *Itm) 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) @@ -459,28 +528,27 @@ bool RSHMethod::Fetch(FetchItem *Itm) } 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.TakeHashes(Hash); - // Timestamp - struct utimbuf UBuf; - UBuf.actime = FailTime; - UBuf.modtime = FailTime; - utime(Queue->DestFile.c_str(),&UBuf); - FailFd = -1; - URIDone(Res); return true; } /*}}}*/ -int main(int argc, const char *argv[]) +int main(int, const char *argv[]) { - RSHMethod Mth; - Prog = strrchr(argv[0],'/'); - Prog++; + setlocale(LC_ALL, ""); + + RSHMethod Mth(flNotDir(argv[0])); return Mth.Run(); }