gistfile1.txt

Components.utils.import("resource://gre/modules/ctypes.jsm");

var EXPORTED_SYMBOLS = ["open"];

nspr = ctypes.open('/Applications/Minefield.app/Contents/MacOS/libnspr4.dylib');


var PR_AF_INET = 2;
var port = 2387;

// PR_SetNetAddr(val, PR_AF_INET, aPort, &addr);
var PR_IpAddrAny = 1;

var addrType = ctypes.StructType("PRNetAddr", 
  [{'family': ctypes.int16_t}, {'port': ctypes.int16_t}, {'ip': ctypes.int32_t},
   {'pad' : ctypes.char.array(8)}]
);

var PR_SetNetAddr = nspr.declare("PR_SetNetAddr",
                         ctypes.default_abi,
                         ctypes.int32_t, // really doesn't return anything
                         ctypes.int32_t, // val
                         ctypes.int16_t, // af
                         ctypes.int16_t, // port
                         addrType.ptr)

var addr = addrType();
var ret = PR_SetNetAddr(PR_IpAddrAny, PR_AF_INET, port, addr.address());
                         

// PR_Bind(serverFD, &addr);

/* open */
var PR_OpenTCPSocket = nspr.declare("PR_OpenTCPSocket",     // symbol name
                            ctypes.default_abi,             // cdecl calling convention
                            ctypes.StructType("PRFileDesc").ptr,  // return (PRFileDesc*)
                            ctypes.int32_t)                 // first arg

var fd = PR_OpenTCPSocket(PR_AF_INET);


var PR_Bind = nspr.declare("PR_Bind",
                            ctypes.default_abi,
                            ctypes.int32_t,
                            ctypes.StructType("PRFileDesc").ptr,
                            addrType.ptr);
                            
var success = PR_Bind(fd, addr.address());
dump(success)

Error: expected type pointer, got PRFileDesc.ptr(ctypes.UInt64("0x157ad110"))
Source File: resource://jsbridge/modules/socket.js
Line: 48