X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/655122418d714f342b5d9789f45f8035f3fe8b9a..2853201580944cb4e5a2a8a810e800e89e9a0475:/methods/rsh.cc?ds=sidebyside diff --git a/methods/rsh.cc b/methods/rsh.cc index 8088cac38..4d133951f 100644 --- a/methods/rsh.cc +++ b/methods/rsh.cc @@ -17,7 +17,11 @@ #include #include #include +#include +#include +#include +#include #include #include #include @@ -30,7 +34,6 @@ #include /*}}}*/ -const char *Prog; unsigned long TimeOut = 120; Configuration::Item const *RshOptions = 0; time_t RSHMethod::FailTime = 0; @@ -40,8 +43,8 @@ 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'; } /*}}}*/ @@ -80,7 +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; @@ -89,8 +92,15 @@ bool RSHConn::Open() // RSHConn::Connect - Fire up rsh and connect /*{{{*/ // --------------------------------------------------------------------- /* */ -bool RSHConn::Connect(std::string Host, std::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) @@ -117,7 +127,7 @@ bool RSHConn::Connect(std::string Host, std::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; @@ -136,6 +146,10 @@ bool RSHConn::Connect(std::string Host, std::string User) 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(); } @@ -145,6 +159,9 @@ bool RSHConn::Connect(std::string Host, std::string User) exit(100); } + if (PortStr != NULL) + free(PortStr); + ReadFd = Pipes[0]; WriteFd = Pipes[3]; SetNonBlock(Pipes[0],true); @@ -153,6 +170,10 @@ bool RSHConn::Connect(std::string Host, std::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 /*{{{*/ @@ -214,17 +235,20 @@ 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) @@ -362,7 +386,7 @@ bool RSHConn::Get(const char *Path,FileFd &To,unsigned long long Resume, // RSHMethod::RSHMethod - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -RSHMethod::RSHMethod() : pkgAcqMethod("1.0",SendConfig) +RSHMethod::RSHMethod(std::string const &pProg) : aptMethod(pProg.c_str(),"1.0",SendConfig), Prog(pProg) { signal(SIGTERM,SigTerm); signal(SIGINT,SigTerm); @@ -374,15 +398,17 @@ RSHMethod::RSHMethod() : pkgAcqMethod("1.0",SendConfig) // --------------------------------------------------------------------- bool RSHMethod::Configuration(std::string Message) { - char ProgStr[100]; - - if (pkgAcqMethod::Configuration(Message) == false) + // 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; - snprintf(ProgStr, sizeof ProgStr, "Acquire::%s::Timeout", Prog); - TimeOut = _config->FindI(ProgStr,TimeOut); - snprintf(ProgStr, sizeof ProgStr, "Acquire::%s::Options", Prog); - RshOptions = _config->Tree(ProgStr); + 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; } @@ -420,7 +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.. @@ -470,7 +496,7 @@ bool RSHMethod::Fetch(FetchItem *Itm) } // Open the file - Hashes Hash; + Hashes Hash(Itm->ExpectedHashes); { FileFd Fd(Itm->DestFile,FileFd::WriteAny); if (_error->PendingError() == true) @@ -479,7 +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; @@ -523,8 +549,6 @@ int main(int, const char *argv[]) { setlocale(LC_ALL, ""); - RSHMethod Mth; - Prog = strrchr(argv[0],'/'); - Prog++; + RSHMethod Mth(flNotDir(argv[0])); return Mth.Run(); }