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/* 
|| This file is part of Pike. For copyright information see COPYRIGHT. 
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING 
|| for more information. 
*/ 
 
#ifndef FDLIB_H 
#define FDLIB_H 
 
#include "global.h" 
#include "pike_macros.h" 
 
#include "pike_netlib.h" 
 
#ifdef HAVE_ERRNO_H 
#include <errno.h> 
#endif 
 
#ifdef HAVE_SYS_SELECT_H 
#include <sys/select.h> 
#endif 
 
#ifdef HAVE_FCNTL_H 
#include <fcntl.h> 
#endif 
 
#ifdef HAVE_SYS_STAT_H 
#include <sys/stat.h> 
#endif 
 
#ifdef HAVE_SYS_FILE_H 
#include <sys/file.h> 
#endif 
 
#ifdef HAVE_SOCKET_H 
#include <socket.h> 
#endif /* HAVE_SOCKET_H */ 
 
#include "pike_netlib.h" 
 
#define fd_INTERPROCESSABLE   1 
#define fd_CAN_NONBLOCK       2 
#define fd_CAN_SHUTDOWN       4 
#define fd_BUFFERED           8 
#define fd_BIDIRECTIONAL     16 
#define fd_REVERSE         32 
#define fd_SEND_FD           64 
 
 
#if defined(HAVE_WINSOCK_H) 
 
#define HAVE_FD_FLOCK 
 
 
#define FILE_CAPABILITIES (fd_INTERPROCESSABLE) 
#define PIPE_CAPABILITIES (fd_INTERPROCESSABLE | fd_BUFFERED) 
#define SOCKET_CAPABILITIES (fd_BIDIRECTIONAL | fd_CAN_NONBLOCK | fd_CAN_SHUTDOWN) 
 
#ifndef FD_SETSIZE 
/* 
 * in reality: almost unlimited actually. 
 */ 
#define FD_SETSIZE 65536 
#endif 
 
#include <winbase.h> 
 
typedef int FD; 
 
#if _INTEGRAL_MAX_BITS >= 64 
typedef struct _stati64 PIKE_STAT_T; 
typedef __int64 PIKE_OFF_T; 
#define PRINTPIKEOFFT PRINTINT64 
#else 
typedef struct stat PIKE_STAT_T; 
typedef off_t PIKE_OFF_T; 
#define PRINTPIKEOFFT PRINTOFFT 
#endif 
 
#define SOCKFUN1(NAME,T1) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1); 
#define SOCKFUN2(NAME,T1,T2) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2); 
#define SOCKFUN3(NAME,T1,T2,T3) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3); 
#define SOCKFUN4(NAME,T1,T2,T3,T4) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3,T4); 
#define SOCKFUN5(NAME,T1,T2,T3,T4,T5) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3,T4,T5); 
 
 
#define fd_info(fd) debug_fd_info(dmalloc_touch_fd(fd)) 
#define fd_query_properties(fd,Y) \ 
        debug_fd_query_properties(dmalloc_touch_fd(fd),(Y)) 
#define fd_stat(F,BUF) debug_fd_stat(F,BUF) 
#define fd_lstat(F,BUF) debug_fd_stat(F,BUF) 
#define fd_open(X,Y,Z) dmalloc_register_fd(debug_fd_open((X),(Y)|fd_BINARY,(Z))) 
#define fd_socket(X,Y,Z) dmalloc_register_fd(debug_fd_socket((X),(Y),(Z))) 
#define fd_pipe(X) debug_fd_pipe( (X) DMALLOC_POS ) 
#define fd_accept(X,Y,Z) dmalloc_register_fd(debug_fd_accept((X),(Y),(Z))) 
#define fd_accept4(X,Y,Z,F) dmalloc_register_fd(accept4((X),(Y),(Z),(F))) 
 
#define fd_bind(fd,X,Y) debug_fd_bind(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_getsockopt(fd,X,Y,Z,Q) debug_fd_getsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q)) 
#define fd_setsockopt(fd,X,Y,Z,Q) debug_fd_setsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q)) 
#define fd_recv(fd,X,Y,Z) debug_fd_recv(dmalloc_touch_fd(fd), (X), (Y),(Z)) 
#define fd_getsockname(fd,X,Y) debug_fd_getsockname(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_getpeername(fd,X,Y) debug_fd_getpeername(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_recvfrom(fd,X,Y,Z,Q,P) debug_fd_recvfrom(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P)) 
#define fd_send(fd,X,Y,Z) debug_fd_send(dmalloc_touch_fd(fd), (X), (Y),(Z)) 
#define fd_sendto(fd,X,Y,Z,Q,P) debug_fd_sendto(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P)) 
#define fd_shutdown(fd,X) debug_fd_shutdown(dmalloc_touch_fd(fd), (X)) 
#define fd_listen(fd,X) debug_fd_listen(dmalloc_touch_fd(fd), (X)) 
#define fd_close(fd) debug_fd_close(dmalloc_close_fd(fd)) 
#define fd_write(fd,X,Y) debug_fd_write(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_read(fd,X,Y) debug_fd_read(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_lseek(fd,X,Y) debug_fd_lseek(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_ftruncate(fd,X) debug_fd_ftruncate(dmalloc_touch_fd(fd),(X)) 
#define fd_flock(fd,X) debug_fd_flock(dmalloc_touch_fd(fd),(X)) 
#define fd_fstat(fd,X) debug_fd_fstat(dmalloc_touch_fd(fd),(X)) 
#define fd_select debug_fd_select /* fixme */ 
#define fd_ioctl(fd,X,Y) debug_fd_ioctl(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_dup(fd) dmalloc_register_fd(debug_fd_dup(dmalloc_touch_fd(fd))) 
#define fd_dup2(fd,to) dmalloc_register_fd(debug_fd_dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to))) 
#define fd_connect(fd,X,Z) debug_fd_connect(dmalloc_touch_fd(fd),(X),(Z)) 
#define fd_inet_ntop(af,addr,cp,sz) debug_fd_inet_ntop(af,addr,cp,sz) 
 
 
/* Prototypes begin here */ 
PMOD_EXPORT void set_errno_from_win32_error (unsigned long err); 
PMOD_EXPORT char *debug_fd_info(int fd); 
PMOD_EXPORT int debug_fd_query_properties(int fd, int guess); 
void fd_init(void); 
void fd_exit(void); 
PMOD_EXPORT p_wchar1 *pike_dwim_utf8_to_utf16(const p_wchar0 *str); 
PMOD_EXPORT p_wchar0 *pike_utf16_to_utf8(const p_wchar1 *str); 
PMOD_EXPORT int debug_fd_stat(const char *file, PIKE_STAT_T *buf); 
PMOD_EXPORT FD debug_fd_open(const char *file, int open_mode, int create_mode); 
PMOD_EXPORT FD debug_fd_socket(int domain, int type, int proto); 
PMOD_EXPORT int debug_fd_pipe(int fds[2] DMALLOC_LINE_ARGS); 
PMOD_EXPORT FD debug_fd_accept(FD fd, struct sockaddr *addr, ACCEPT_SIZE_T *addrlen); 
SOCKFUN2(bind, struct sockaddr *, int) 
PMOD_EXPORT int debug_fd_connect (FD fd, struct sockaddr *a, int len); 
SOCKFUN4(getsockopt,int,int,void*,ACCEPT_SIZE_T *) 
SOCKFUN4(setsockopt,int,int,void*,int) 
SOCKFUN3(recv,void *,int,int) 
SOCKFUN2(getsockname,struct sockaddr *,ACCEPT_SIZE_T *) 
SOCKFUN2(getpeername,struct sockaddr *,ACCEPT_SIZE_T *) 
SOCKFUN5(recvfrom,void *,int,int,struct sockaddr *,ACCEPT_SIZE_T *) 
SOCKFUN3(send,void *,int,int) 
SOCKFUN5(sendto,void *,int,int,struct sockaddr *,unsigned int) 
SOCKFUN1(shutdown, int) 
SOCKFUN1(listen, int) 
PMOD_EXPORT int debug_fd_close(FD fd); 
PMOD_EXPORT ptrdiff_t debug_fd_write(FD fd, void *buf, ptrdiff_t len); 
PMOD_EXPORT ptrdiff_t debug_fd_read(FD fd, void *to, ptrdiff_t len); 
PMOD_EXPORT PIKE_OFF_T debug_fd_lseek(FD fd, PIKE_OFF_T pos, int where); 
PMOD_EXPORT int debug_fd_ftruncate(FD fd, PIKE_OFF_T len); 
PMOD_EXPORT int debug_fd_flock(FD fd, int oper); 
PMOD_EXPORT int debug_fd_fstat(FD fd, PIKE_STAT_T *s); 
PMOD_EXPORT int debug_fd_select(int fds, FD_SET *a, FD_SET *b, FD_SET *c, struct timeval *t); 
PMOD_EXPORT int debug_fd_ioctl(FD fd, int cmd, void *data); 
PMOD_EXPORT FD debug_fd_dup(FD from); 
PMOD_EXPORT FD debug_fd_dup2(FD from, FD to); 
PMOD_EXPORT const char *debug_fd_inet_ntop(int af, const void *addr, 
                                           char *cp, size_t sz); 
/* Prototypes end here */ 
 
#undef SOCKFUN1 
#undef SOCKFUN2 
#undef SOCKFUN3 
#undef SOCKFUN4 
#undef SOCKFUN5 
 
#ifndef EWOULDBLOCK 
#define EWOULDBLOCK WSAEWOULDBLOCK 
#endif 
 
#ifndef EADDRINUSE 
#define EADDRINUSE WSAEADDRINUSE 
#endif 
 
#ifndef ENOTSUPP 
#define ENOTSUPP WSAEOPNOTSUPP 
#endif 
 
#define fd_RDONLY 1 
#define fd_WRONLY 2 
#define fd_RDWR 3 
#define fd_ACCMODE 3 
#define fd_APPEND 4 
#define fd_CREAT 8 
#define fd_TRUNC 16 
#define fd_EXCL 32 
#define fd_BINARY 0 
#define fd_LARGEFILE 0 
 
#define fd_shutdown_read SD_RECEIVE 
#define fd_shutdown_write SD_SEND 
#define fd_shutdown_both SD_BOTH 
 
#define FD_PIPE -5 
#define FD_SOCKET -4 
#define FD_CONSOLE -3 
#define FD_FILE -2 
#define FD_NO_MORE_FREE -1 
 
 
#define fd_LOCK_SH 1 
#define fd_LOCK_EX 2 
#define fd_LOCK_UN 4 
#define fd_LOCK_NB 8 
 
struct my_fd_set_s 
{ 
  char bits[FD_SETSIZE/8]; 
}; 
 
typedef struct my_fd_set_s my_fd_set; 
 
#ifdef PIKE_DEBUG 
#define fd_check_fd(X) do { if(fd_type[X]>=0) Pike_fatal("FD_SET on closed fd %d (%d) %s:%d.\n",X,da_handle[X],__FILE__,__LINE__); }while(0) 
#else 
#define fd_check_fd(X) 
#endif 
#define my_FD_CLR(FD,S) ((S)->bits[(FD)>>3]&=~ (1<<(FD&7))) 
#define my_FD_SET(FD,S) do{ fd_check_fd(FD); ((S)->bits[(FD)>>3]|= (1<<(FD&7))); }while(0) 
#define my_FD_ISSET(FD,S) ((S)->bits[(FD)>>3]&(1<<(FD&7))) 
#define my_FD_ZERO(S) memset(& (S)->bits, 0, sizeof(my_fd_set)) 
 
#define fd_copy_my_fd_set_to_fd_set(TO,FROM,max) do {                   \ 
    int e_,d_,max_=MINIMUM(FD_SETSIZE>>3,(max+7)>>3);                   \ 
    (TO)->fd_count=0;                                                   \ 
    for(e_=0;e_<max_;e_++)                                              \ 
    {                                                                   \ 
      int b_=(FROM)->bits[e_];                                          \ 
      if(b_)                                                            \ 
      {                                                                 \ 
        for(d_=0;d_<8;d_++)                                             \ 
        {                                                               \ 
          if(b_ & (1<<d_))                                              \ 
          {                                                             \ 
            int fd_=(e_<<3)+d_;                                         \ 
            fd_check_fd(fd_);                                           \ 
            (TO)->fd_array[(TO)->fd_count++]=(SOCKET)da_handle[fd_];    \ 
          }                                                             \ 
        }                                                               \ 
      }                                                                 \ 
    }                                                                   \ 
  }while(0) 
 
extern HANDLE da_handle[FD_SETSIZE]; 
extern int fd_type[FD_SETSIZE]; 
 
#define fd_FD_CLR(X,Y) FD_CLR((SOCKET)da_handle[X],Y) 
#define fd_FD_SET(X,Y) \ 
 do { fd_check_fd(X); FD_SET((SOCKET)da_handle[X],Y); }while(0) 
#define fd_FD_ISSET(X,Y) FD_ISSET((SOCKET)da_handle[X],Y) 
#define fd_FD_ZERO(X) FD_ZERO(X) 
 
#ifndef S_IFSOCK 
#define S_IFSOCK 0140000 
#endif 
 
#ifndef S_IFIFO 
#define S_IFIFO 0010000 
#endif 
 
 
/* This may be inaccurate! /Hubbe */ 
#if defined(__NT__) && !defined(__MINGW32__) 
#define EMULATE_DIRECT 
#endif 
 
#ifdef EMULATE_DIRECT 
 
#define d_name cFileName 
#define direct _WIN32_FIND_DATAA 
#define dirent direct 
#define MAXPATHLEN MAX_PATH 
#define NAMLEN(dirent) strlen((dirent)->d_name) 
 
typedef struct DIR_s 
{ 
  int first; 
  WIN32_FIND_DATA find_data; 
  HANDLE h; 
} DIR; 
 
PMOD_EXPORT DIR *opendir(char *dir); 
PMOD_EXPORT int readdir_r(DIR *dir, struct direct *tmp ,struct direct **d); 
PMOD_EXPORT void closedir(DIR *dir); 
 
#define HAVE_POSIX_READDIR_R 
 
/* Do not use these... */ 
#if 0 
/* Why not? Want to use this one for _getdrive. /mast */ 
#undef HAVE_DIRECT_H 
#endif 
#undef HAVE_NDIR_H 
#undef HAVE_SYS_NDIR_H 
#undef HAVE_DIRENT_H 
 
#endif 
 
 
 
#else /* HAVE_WINSOCK && !__GNUC__ */ 
 
 
typedef int FD; 
typedef struct stat PIKE_STAT_T; 
typedef off_t PIKE_OFF_T; 
#define PRINTPIKEOFFT PRINTOFFT 
 
#define fd_info(X) "" 
#define fd_init() 
#define fd_exit() 
 
#define fd_RDONLY O_RDONLY 
#define fd_WRONLY O_WRONLY 
#define fd_RDWR O_RDWR 
#ifdef O_ACCMODE 
#define fd_ACCMODE O_ACCMODE 
#else 
#define fd_ACCMODE (fd_RDONLY|fd_WRONLY|fd_RDWR) 
#endif 
#define fd_APPEND O_APPEND 
#define fd_CREAT O_CREAT 
#define fd_TRUNC O_TRUNC 
#define fd_EXCL O_EXCL 
 
#ifdef O_BINARY 
#define fd_BINARY O_BINARY 
#else 
#define fd_BINARY 0 
#endif 
 
#ifdef O_LARGEFILE 
#define fd_LARGEFILE O_LARGEFILE 
#else /* !O_LARGEFILE */ 
#define fd_LARGEFILE 0 
#endif /* O_LARGEFILE */ 
 
#define fd_query_properties(X,Y) ( fd_INTERPROCESSABLE | (Y)) 
 
#define fd_stat(F,BUF) stat(F,BUF) 
#define fd_lstat(F,BUF) lstat(F,BUF) 
#define fd_open(X,Y,Z) dmalloc_register_fd(open((X),(Y)|fd_BINARY,(Z))) 
#define fd_socket(X,Y,Z) dmalloc_register_fd(socket((X),(Y),(Z))) 
#define fd_pipe pipe /* FIXME */ 
#define fd_accept(X,Y,Z) dmalloc_register_fd(accept((X),(Y),(Z))) 
#define fd_accept4(X,Y,Z,F) dmalloc_register_fd(accept4((X),(Y),(Z),(F))) 
 
#define fd_bind(fd,X,Y) bind(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_getsockopt(fd,X,Y,Z,Q) getsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q)) 
#define fd_setsockopt(fd,X,Y,Z,Q) setsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q)) 
#define fd_recv(fd,X,Y,Z) recv(dmalloc_touch_fd(fd), (X), (Y),(Z)) 
#define fd_getsockname(fd,X,Y) getsockname(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_getpeername(fd,X,Y) getpeername(dmalloc_touch_fd(fd), (X), (Y)) 
#define fd_recvfrom(fd,X,Y,Z,Q,P) recvfrom(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P)) 
#define fd_send(fd,X,Y,Z) send(dmalloc_touch_fd(fd), (X), (Y),(Z)) 
#define fd_sendto(fd,X,Y,Z,Q,P) sendto(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P)) 
#define fd_shutdown(fd,X) shutdown(dmalloc_touch_fd(fd), (X)) 
#define fd_listen(fd,X) listen(dmalloc_touch_fd(fd), (X)) 
 
#ifdef HAVE_BROKEN_F_SETFD 
#define fd_close(fd) (set_close_on_exec(fd,0),close(dmalloc_close_fd(fd))) 
#else /* !HAVE_BROKEN_F_SETFD */ 
#define fd_close(fd) close(dmalloc_close_fd(fd)) 
#endif /* HAVE_BROKEN_F_SETFD */ 
 
#define fd_write(fd,X,Y) write(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_read(fd,X,Y) read(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_lseek(fd,X,Y) lseek(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_ftruncate(fd,X) ftruncate(dmalloc_touch_fd(fd),(X)) 
#define fd_fstat(fd,X) fstat(dmalloc_touch_fd(fd),(X)) 
#define fd_select select /* fixme */ 
#define fd_ioctl(fd,X,Y) ioctl(dmalloc_touch_fd(fd),(X),(Y)) 
#define fd_dup(fd) dmalloc_register_fd(dup(dmalloc_touch_fd(fd))) 
#define fd_connect(fd,X,Z) connect(dmalloc_touch_fd(fd),(X),(Z)) 
#ifdef HAVE_INET_NTOP 
#define fd_inet_ntop(af,addr,cp,sz) inet_ntop(af,addr,cp,sz) 
#endif 
 
#ifdef HAVE_BROKEN_F_SETFD 
#define fd_dup2(fd,to) (set_close_on_exec(to,0), dmalloc_register_fd(dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to)))) 
#else /* !HAVE_BROKEN_F_SETFD */ 
#define fd_dup2(fd,to) dmalloc_register_fd(dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to))) 
#endif /* HAVE_BROKEN_F_SETFD */ 
 
#define fd_socketpair socketpair /* fixme */ 
 
#define fd_fd_set fd_set 
#define fd_FD_CLR FD_CLR 
#define fd_FD_SET FD_SET 
#define fd_FD_ISSET FD_ISSET 
#define fd_FD_ZERO FD_ZERO 
 
#ifdef HAVE_FLOCK 
#define HAVE_FD_FLOCK 
#define fd_flock(fd,X) flock(dmalloc_touch_fd(fd),(X)) 
#define fd_LOCK_SH LOCK_SH 
#define fd_LOCK_EX LOCK_EX 
#define fd_LOCK_UN LOCK_UN 
#define fd_LOCK_NB LOCK_NB 
#else 
#ifdef HAVE_LOCKF 
#define HAVE_FD_LOCKF 
#define fd_LOCK_EX F_LOCK 
#define fd_LOCK_UN F_ULOCK 
#define fd_LOCK_NB F_TLOCK 
 
#define fd_lockf(fd,mode) lockf(dmalloc_touch_fd(fd),mode,0) 
#endif 
#endif 
 
 
#define fd_shutdown_read 0 
#define fd_shutdown_write 1 
#define fd_shutdown_both 2 
 
struct my_fd_set_s 
{ 
  fd_set tmp; 
}; 
 
typedef struct my_fd_set_s my_fd_set; 
 
#define my_FD_CLR(FD,S) FD_CLR((FD), & (S)->tmp) 
#define my_FD_SET(FD,S) FD_SET((FD), & (S)->tmp) 
#define my_FD_ISSET(FD,S) FD_ISSET((FD), & (S)->tmp) 
#define my_FD_ZERO(S) FD_ZERO(& (S)->tmp) 
 
#define fd_copy_my_fd_set_to_fd_set(TO,FROM,max) \ 
   memcpy((TO),&(FROM)->tmp,sizeof(*(TO))) 
 
#define FILE_CAPABILITIES (fd_INTERPROCESSABLE | fd_CAN_NONBLOCK) 
#ifndef __amigaos__ 
#define PIPE_CAPABILITIES (fd_INTERPROCESSABLE | fd_BUFFERED | fd_CAN_NONBLOCK) 
#endif 
#define UNIX_SOCKET_CAPABILITIES (fd_INTERPROCESSABLE | fd_BIDIRECTIONAL | fd_CAN_NONBLOCK | fd_SEND_FD) 
#define SOCKET_CAPABILITIES (fd_INTERPROCESSABLE | fd_BIDIRECTIONAL | fd_CAN_NONBLOCK | fd_CAN_SHUTDOWN) 
 
#endif /* Don't HAVE_WINSOCK */ 
 
#ifndef SEEK_SET 
#define SEEK_SET 0 
#endif 
 
#ifndef SEEK_CUR 
#define SEEK_CUR 1 
#endif 
 
#ifndef SEEK_END 
#define SEEK_END 2 
#endif 
 
#ifndef S_ISREG 
#ifdef S_IFREG 
#define S_ISREG(mode)   (((mode) & (S_IFMT)) == (S_IFREG)) 
#else /* !S_IFREG */ 
#define S_ISREG(mode)   (((mode) & (_S_IFMT)) == (_S_IFREG)) 
#endif /* S_IFREG */ 
#endif /* !S_ISREG */ 
 
#ifndef S_IFIFO 
#define S_IFIFO  0x1000 
#endif 
#ifndef S_IFSOCK 
#define S_IFSOCK 0xc000 
#endif 
 
PMOD_EXPORT int pike_make_pipe(int *fds); 
PMOD_EXPORT int fd_from_object(struct object *o); 
PMOD_EXPORT void create_proxy_pipe(struct object *o, int for_reading); 
PMOD_EXPORT struct object *file_make_object_from_fd(int fd, int mode, int guess); 
PMOD_EXPORT extern struct program *port_program; 
 
#endif /* FDLIB_H */