1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2011 AT&T Intellectual Property * 5* and is licensed under the * 6* Eclipse Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.eclipse.org/org/documents/epl-v10.html * 11* (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12* * 13* Information and Software Systems Research * 14* AT&T Research * 15* Florham Park NJ * 16* * 17* Glenn Fowler <gsf@research.att.com> * 18* David Korn <dgk@research.att.com> * 19* Phong Vo <kpv@research.att.com> * 20* * 21***********************************************************************/ 22#pragma prototyped 23 24#include <ast.h> 25 26#if !_UWIN 27 28void _STUB_stdfun(){} 29 30#else 31 32#include <ast_windows.h> 33#include <uwin.h> 34#include <dlfcn.h> 35#include "FEATURE/uwin" 36 37#if _lib___iob_func 38#define IOB ((char*)__iob_func()) 39#elif _lib___p__iob 40#define IOB ((char*)__p__iob()) 41#elif _dat__iob 42#define IOB ((char*)_iob) 43#else 44#define IOB ((char*)_p__iob()) 45#endif 46 47#define IOBMAX (512*32) 48 49#include "stdhdr.h" 50 51int 52_stdfun(Sfio_t* f, Funvec_t* vp) 53{ 54 static char* iob; 55 static int init; 56 static void* bp; 57 static void* np; 58 59 if (!iob && !(iob = IOB)) 60 return 0; 61 if (f && ((char*)f < iob || (char*)f > iob+IOBMAX)) 62 return 0; 63 if (!vp->vec[1]) 64 { 65 if (!init) 66 { 67 init = 1; 68 bp = dlopen("/usr/bin/stdio.dll", 0); 69 } 70 if (bp && (vp->vec[1] = (Fun_f)dlsym(bp, vp->name))) 71 return 1; 72 if (!np && !(np = dlopen("/sys/msvcrt.dll", 0))) 73 return -1; 74 if (!(vp->vec[1] = (Fun_f)dlsym(np, vp->name))) 75 return -1; 76 } 77 return 1; 78} 79 80#endif 81