InterfaceCommand.cc

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00038 
00039 #include "InterfaceCommand.h"
00040 #include "contacts/InterfaceTable.h"
00041 #include "conv_layers/ConvergenceLayer.h"
00042 #include <oasys/util/StringBuffer.h>
00043 
00044 namespace dtn {
00045 
00046 InterfaceCommand::InterfaceCommand()
00047     : TclCommand("interface") 
00048 {
00049     add_to_help("add <name> <conv layer> [<args>?]",
00050                 "add an interface");
00051     add_to_help("del <name>", "delete an interface");
00052     add_to_help("list", "list all of the interfaces");
00053 }
00054 
00055 int
00056 InterfaceCommand::exec(int argc, const char** argv, Tcl_Interp* interp)
00057 {
00058     (void)interp;
00059     // interface list
00060     if (strcasecmp("list", argv[1]) == 0) {
00061         // XXX/bowei -- seems to like to core
00062         if (argc > 2) {
00063             wrong_num_args(argc, argv, 1, 2, 2);
00064         }
00065 
00066         oasys::StringBuffer buf;
00067         InterfaceTable::instance()->list(&buf);
00068         set_result(buf.c_str());
00069 
00070         return TCL_OK;
00071     }
00072     
00073     // interface add <name> <conv_layer> <args>
00074     else if (strcasecmp(argv[1], "add") == 0) {
00075         if (argc < 4) {
00076             wrong_num_args(argc, argv, 1, 4, INT_MAX);
00077             return TCL_ERROR;
00078         }
00079         
00080         const char* name    = argv[2];
00081         const char* proto   = argv[3];
00082 
00083         ConvergenceLayer* cl = ConvergenceLayer::find_clayer(proto);
00084         if (!cl) {
00085             resultf("can't find convergence layer for %s", proto);
00086             return TCL_ERROR;
00087         }
00088 
00089         // XXX/demmer return error string from here
00090         if (! InterfaceTable::instance()->add(name, cl, proto,
00091                                               argc - 4, argv + 4)) {
00092             resultf("error adding interface %s", name);
00093             return TCL_ERROR;
00094         }
00095         return TCL_OK;
00096     }
00097 
00098     // interface del <name>
00099     else if (strcasecmp(argv[1], "del") == 0) {
00100         if (argc != 3) {
00101             wrong_num_args(argc, argv, 2, 4, 4);
00102             return TCL_ERROR;
00103         }
00104 
00105         const char* name = argv[2];
00106         
00107         if (! InterfaceTable::instance()->del(name)) {
00108             resultf("error removing interface %s", name);
00109             return TCL_ERROR;
00110         }
00111 
00112         return TCL_OK;
00113     }
00114     
00115     resultf("invalid interface subcommand %s", argv[1]);
00116     return TCL_ERROR;
00117 }
00118 
00119 } // namespace dtn

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