// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ /* ##################################################################### dummy solver to get quickly a scenario file out of APT ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include <apt-pkg/edsp.h> #include <string.h> #include <unistd.h> #include <cstdio> #include <iostream> #include <sstream> #include <config.h> /*}}}*/ // ShowHelp - Show a help screen /*{{{*/ // --------------------------------------------------------------------- /* */ static bool ShowHelp() { ioprintf(std::cout, "%s %s (%s)\n", PACKAGE, PACKAGE_VERSION, COMMON_ARCH); std::cout << "Usage: apt-dump-solver\n" "\n" "apt-dump-solver is a dummy solver who just dumps its input to the\n" "file specified in the environment variable APT_EDSP_DUMP_FILENAME and\n" "exists with a proper EDSP error.\n" "\n" " This dump has lost Super Cow Powers.\n"; return true; } /*}}}*/ int main(int argc,const char *argv[]) /*{{{*/ { if (argc > 1 && (strcmp(argv[1], "--help") == 0 || strcmp(argv[1],"-h") == 0 || strcmp(argv[1],"-v") == 0 || strcmp(argv[1],"--version") == 0)) { ShowHelp(); return 0; } // we really don't need anything DropPrivileges(); char const * const filename = getenv("APT_EDSP_DUMP_FILENAME"); if (filename == NULL || strlen(filename) == 0) { EDSP::WriteError("ERR_NO_FILENAME", "You have to set the environment variable APT_EDSP_DUMP_FILENAME\n" "to a valid filename to store the dump of EDSP solver input in.\n" "For example with: export APT_EDSP_DUMP_FILENAME=/tmp/dump.edsp", stdout); return 0; } RemoveFile(argv[0], filename); FileFd input, output; if (input.OpenDescriptor(STDIN_FILENO, FileFd::ReadOnly) == false || output.Open(filename, FileFd::WriteOnly | FileFd::Create | FileFd::Exclusive, 0600) == false || CopyFile(input, output) == false || input.Close() == false || output.Close() == false) { std::ostringstream out; out << "Writing EDSP solver input to file '" << filename << "' failed!\n"; _error->DumpErrors(out); EDSP::WriteError("ERR_WRITE_ERROR", out.str(), stdout); return 0; } EDSP::WriteError("ERR_JUST_DUMPING", "I am too dumb, i can just dump!\nPlease use one of my friends instead!", stdout); return 0; }