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+/* Copyright (c) 2008, 2009
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Micah Cowan (micah@cowan.name)
+ * Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
+ * Copyright (c) 1993-2002, 2003, 2005, 2006, 2007
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, see
+ * https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
+ *
+ ****************************************************************
+ * $Id$ GNU
+ */
+
+#if !defined(__GNUC__) || __GNUC__ < 2
+#undef __attribute__
+#define __attribute__(x)
+#endif
+
+#include <stdbool.h>
+
+/* screen.c */
+extern int main __P((int, char **));
+extern sigret_t SigHup __P(SIGPROTOARG);
+extern void eexit __P((int)) __attribute__((__noreturn__));
+extern void Detach __P((int));
+extern void Hangup __P((void));
+extern void Kill __P((int, int));
+#ifdef USEVARARGS
+extern void Msg __P((int, const char *, ...)) __attribute__((format(printf, 2, 3)));
+extern void Panic __P((int, const char *, ...)) __attribute__((format(printf, 2, 3))) __attribute__((__noreturn__));
+extern void QueryMsg __P((int, const char *, ...)) __attribute__((format(printf, 2, 3)));
+extern void Dummy __P((int, const char *, ...)) __attribute__((format(printf, 2, 3)));
+#else
+extern void Msg __P(());
+extern void Panic __P(());
+extern void QueryMsg __P(());
+extern void Dummy __P(());
+#endif
+extern void Finit __P((int));
+extern void MakeNewEnv __P((void));
+extern char *MakeWinMsg __P((char *, struct win *, int));
+extern char *MakeWinMsgEv __P((char *, struct win *, int, int, struct event *, int));
+extern int AddWinMsgRend __P((const char *, int));
+extern void PutWinMsg __P((char *, int, int));
+#ifdef BSDWAIT
+extern void WindowDied __P((struct win *, union wait, int));
+#else
+extern void WindowDied __P((struct win *, int, int));
+#endif
+extern void setbacktick __P((int, int, int, char **));
+
+/* ansi.c */
+extern void ResetAnsiState __P((struct win *));
+extern void ResetWindow __P((struct win *));
+extern void ResetCharsets __P((struct win *));
+extern void WriteString __P((struct win *, char *, int));
+extern void ChangeAKA __P((struct win *, char *, int));
+extern void SetCharsets __P((struct win *, char *));
+extern int GetAnsiStatus __P((struct win *, char *));
+extern void WNewAutoFlow __P((struct win *, int));
+extern void WBell __P((struct win *, int));
+extern void WMsg __P((struct win *, int, char *));
+extern void WChangeSize __P((struct win *, int, int));
+extern void WindowChanged __P((struct win *, int));
+extern int MFindUsedLine __P((struct win *, int, int));
+
+/* fileio.c */
+extern int StartRc __P((char *, int));
+extern void FinishRc __P((char *));
+extern void RcLine __P((char *, int));
+extern FILE *secfopen __P((char *, char *));
+extern int secopen __P((char *, int, int));
+extern void WriteFile __P((struct acluser *, char *, int));
+extern char *ReadFile __P((char *, int *));
+extern void KillBuffers __P((void));
+extern int printpipe __P((struct win *, char *));
+extern int readpipe __P((char **));
+extern void RunBlanker __P((char **));
+extern void do_source __P((char *));
+
+/* tty.c */
+extern int OpenTTY __P((char *, char *));
+extern void InitTTY __P((struct mode *, int));
+extern void GetTTY __P((int, struct mode *));
+extern void SetTTY __P((int, struct mode *));
+extern void SetMode __P((struct mode *, struct mode *, int, int));
+extern void SetFlow __P((int));
+extern void SendBreak __P((struct win *, int, int));
+extern int TtyGrabConsole __P((int, int, char *));
+extern char *TtyGetModemStatus __P((int, char *));
+#ifdef DEBUG
+extern void DebugTTY __P((struct mode *));
+#endif /* DEBUG */
+extern int fgtty __P((int));
+extern void brktty __P((int));
+extern struct baud_values *lookup_baud __P((int bps));
+extern int SetBaud __P((struct mode *, int, int));
+extern int SttyMode __P((struct mode *, char *));
+extern int CheckTtyname __P((char *));
+extern char *GetPtsPathOrSymlink __P((int));
+
+/* mark.c */
+extern int GetHistory __P((void));
+extern void MarkRoutine __P((void));
+extern void revto_line __P((int, int, int));
+extern void revto __P((int, int));
+extern int InMark __P((void));
+extern void MakePaster __P((struct paster *, char *, int, int));
+extern void FreePaster __P((struct paster *));
+
+/* search.c */
+extern void Search __P((int));
+extern void ISearch __P((int));
+
+/* input.c */
+extern void inp_setprompt __P((char *, char *));
+extern void Input __P((char *, int, int, void (*)(char *, int, char *), char *, int));
+extern int InInput __P((void));
+
+/* help.c */
+extern void exit_with_usage __P((char *, char *, char *));
+extern void display_help __P((char *, struct action *));
+extern void display_copyright __P((void));
+extern void display_displays __P((void));
+extern void display_bindkey __P((char *, struct action *));
+extern int InWList __P((void));
+extern void WListUpdatecv __P((struct canvas *, struct win *));
+extern void WListLinkChanged __P((void));
+#ifdef ZMODEM
+extern void ZmodemPage __P((void));
+#endif
+
+/* window.c */
+extern int MakeWindow __P((struct NewWindow *));
+extern int RemakeWindow __P((struct win *));
+extern void FreeWindow __P((struct win *));
+#ifdef PSEUDOS
+extern int winexec __P((char **));
+extern void FreePseudowin __P((struct win *));
+#endif
+extern void nwin_compose __P((struct NewWindow *, struct NewWindow *, struct NewWindow *));
+extern int DoStartLog __P((struct win *, char *, int));
+extern int ReleaseAutoWritelock __P((struct display *, struct win *));
+extern int ObtainAutoWritelock __P((struct display *, struct win *));
+extern void CloseDevice __P((struct win *));
+#ifdef ZMODEM
+extern void zmodem_abort __P((struct win *, struct display *));
+#endif
+#ifndef HAVE_EXECVPE
+extern void execvpe __P((char *, char **, char **));
+#endif
+
+/* utmp.c */
+#ifdef UTMPOK
+extern void InitUtmp __P((void));
+extern void RemoveLoginSlot __P((void));
+extern void RestoreLoginSlot __P((void));
+extern int SetUtmp __P((struct win *));
+extern int RemoveUtmp __P((struct win *));
+#endif /* UTMPOK */
+extern void SlotToggle __P((int));
+#ifdef USRLIMIT
+extern int CountUsers __P((void));
+#endif
+#ifdef CAREFULUTMP
+extern void CarefulUtmp __P((void));
+#else
+# define CarefulUtmp() /* nothing */
+#endif /* CAREFULUTMP */
+
+
+/* loadav.c */
+#ifdef LOADAV
+extern void InitLoadav __P((void));
+extern void AddLoadav __P((char *));
+#endif
+
+/* pty.c */
+extern int OpenPTY __P((char **));
+extern void InitPTY __P((int));
+
+/* process.c */
+extern void InitKeytab __P((void));
+extern void ProcessInput __P((char *, int));
+#ifdef MAPKEYS
+extern void ProcessInput2 __P((char *, int));
+#endif
+extern void DoProcess __P((struct win *, char **, int *, struct paster *));
+extern void DoAction __P((struct action *, int));
+extern int FindCommnr __P((const char *));
+extern void DoCommand __P((char **, int *));
+extern void Activate __P((int));
+extern void KillWindow __P((struct win *));
+extern void SetForeWindow __P((struct win *));
+extern int Parse __P((char *, int, char **, int *));
+extern void SetEscape __P((struct acluser *, int, int));
+extern void DoScreen __P((char *, char **));
+extern int IsNumColon __P((char *, int, char *, int));
+extern void ShowWindows __P((int));
+extern char *AddWindows __P((char *, int, int, int));
+extern char *AddWindowFlags __P((char *, int, struct win *));
+extern char *AddOtherUsers __P((char *, int, struct win *));
+extern int WindowByNoN __P((char *));
+extern struct win *FindNiceWindow __P((struct win *, char *));
+#ifdef COPY_PASTE
+extern int CompileKeys __P((char *, int, unsigned char *));
+#endif
+#ifdef RXVT_OSC
+extern void RefreshXtermOSC __P((void));
+#endif
+extern int ParseSaveStr __P((struct action *act, char **));
+extern int ParseNum __P((struct action *act, int *));
+extern int ParseSwitch __P((struct action *, int *));
+extern int ParseAttrColor __P((char *, char *, int));
+extern void ApplyAttrColor __P((int, struct mchar *));
+extern void SwitchWindow __P((int));
+extern int StuffKey __P((int));
+
+/* termcap.c */
+extern int InitTermcap __P((int, int));
+extern char *MakeTermcap __P((int));
+extern void DumpTermcap __P((int, FILE *));
+extern char *gettermcapstring __P((char *));
+#ifdef MAPKEYS
+extern int remap __P((int, int));
+extern void CheckEscape __P((void));
+#endif
+extern int CreateTransTable __P((char *));
+extern void FreeTransTable __P((void));
+
+/* attacher.c */
+extern int Attach __P((int));
+extern void Attacher __P((void));
+extern sigret_t AttacherFinit __P(SIGPROTOARG);
+extern void SendCmdMessage __P((char *, char *, char **, int));
+
+/* display.c */
+extern struct display *MakeDisplay __P((char *, char *, char *, int, int, struct mode *));
+extern void FreeDisplay __P((void));
+extern void DefProcess __P((char **, int *));
+extern void DefRedisplayLine __P((int, int, int, int));
+extern void DefClearLine __P((int, int, int, int));
+extern int DefRewrite __P((int, int, int, struct mchar *, int));
+extern int DefResize __P((int, int));
+extern void DefRestore __P((void));
+extern void AddCStr __P((char *));
+extern void AddCStr2 __P((char *, int));
+extern void InitTerm __P((int));
+extern void FinitTerm __P((void));
+extern void PUTCHAR __P((int));
+extern void PUTCHARLP __P((int));
+extern void ClearAll __P((void));
+extern void ClearArea __P((int, int, int, int, int, int, int, int));
+extern void ClearLine __P((struct mline *, int, int, int, int));
+extern void RefreshAll __P((int));
+extern void RefreshArea __P((int, int, int, int, int));
+extern void RefreshLine __P((int, int, int, int));
+extern void Redisplay __P((int));
+extern void RedisplayDisplays __P((int));
+extern void ShowHStatus __P((char *));
+extern void RefreshHStatus __P((void));
+extern void DisplayLine __P((struct mline *, struct mline *, int, int, int));
+extern void GotoPos __P((int, int));
+extern int CalcCost __P((char *));
+extern void ScrollH __P((int, int, int, int, int, struct mline *));
+extern void ScrollV __P((int, int, int, int, int, int));
+extern void PutChar __P((struct mchar *, int, int));
+extern void InsChar __P((struct mchar *, int, int, int, struct mline *));
+extern void WrapChar __P((struct mchar *, int, int, int, int, int, int, int));
+extern void ChangeScrollRegion __P((int, int));
+extern void InsertMode __P((int));
+extern void KeypadMode __P((int));
+extern void CursorkeysMode __P((int));
+extern void ReverseVideo __P((int));
+extern void CursorVisibility __P((int));
+extern void MouseMode __P((int));
+extern void ExtMouseMode __P((int));
+extern void SetFont __P((int));
+extern void SetAttr __P((int));
+extern void SetColor __P((int, int));
+extern void SetRendition __P((struct mchar *));
+extern void SetRenditionMline __P((struct mline *, int));
+extern void MakeStatus __P((char *));
+extern void RemoveStatus __P((void));
+extern int ResizeDisplay __P((int, int));
+extern void AddStr __P((char *));
+extern void AddStrn __P((char *, int));
+extern void Flush __P((int));
+extern void freetty __P((void));
+extern void Resize_obuf __P((void));
+#ifdef AUTO_NUKE
+extern void NukePending __P((void));
+#endif
+#ifdef RXVT_OSC
+extern void ClearAllXtermOSC __P((void));
+extern void SetXtermOSC __P((int, char *, char *));
+#endif
+#ifdef COLOR
+extern int color256to16 __P((int));
+# ifdef COLORS256
+extern int color256to88 __P((int));
+# endif
+#endif
+extern void ResetIdle __P((void));
+extern void KillBlanker __P((void));
+extern void DisplaySleep1000 __P((int, int));
+
+/* resize.c */
+extern int ChangeWindowSize __P((struct win *, int, int, int));
+extern void ChangeScreenSize __P((int, int, int));
+extern void CheckScreenSize __P((int));
+extern char *xrealloc __P((char *, int));
+extern void ResizeLayersToCanvases __P((void));
+extern void ResizeLayer __P((struct layer *, int, int, struct display *));
+extern int MayResizeLayer __P((struct layer *));
+extern void FreeAltScreen __P((struct win *));
+extern void EnterAltScreen __P((struct win *));
+extern void LeaveAltScreen __P((struct win *));
+
+/* sched.c */
+extern void evenq __P((struct event *));
+extern void evdeq __P((struct event *));
+extern void SetTimeout __P((struct event *, int));
+extern void sched __P((void));
+
+/* socket.c */
+extern int FindSocket __P((int *, int *, int *, char *, bool *));
+extern int MakeClientSocket __P((int, bool));
+extern int MakeServerSocket __P((bool));
+extern int RecoverSocket __P((void));
+extern int chsock __P((void));
+extern void ReceiveMsg __P((void));
+extern void SendCreateMsg __P((char *, struct NewWindow *));
+extern int SendErrorMsg __P((char *, char *));
+extern int SendAttachMsg __P((int, struct msg *, int));
+extern void ReceiveRaw __P((int));
+extern bool IsSocket __P((const char *));
+
+/* misc.c */
+extern char *SaveStr __P((const char *));
+extern char *SaveStrn __P((const char *, int));
+extern char *InStr __P((char *, const char *));
+#ifndef HAVE_STRERROR
+extern char *strerror __P((int));
+#endif
+extern void centerline __P((char *, int));
+extern void leftline __P((char *, int, struct mchar *));
+extern char *Filename __P((char *));
+extern char *stripdev __P((char *));
+#ifdef NEED_OWN_BCOPY
+extern void xbcopy __P((char *, char *, int));
+#endif
+extern void bclear __P((char *, int));
+extern void closeallfiles __P((int));
+extern int UserContext __P((void));
+extern void UserReturn __P((int));
+extern int UserStatus __P((void));
+#if defined(POSIX) || defined(hpux)
+extern void (*xsignal __P((int, void (*)SIGPROTOARG))) __P(SIGPROTOARG);
+#endif
+#ifndef HAVE_RENAME
+extern int rename __P((char *, char *));
+#endif
+#if defined(HAVE_SETEUID) || defined(HAVE_SETREUID)
+extern void xseteuid __P((int));
+extern void xsetegid __P((int));
+#endif
+extern int AddXChar __P((char *, int));
+extern int AddXChars __P((char *, int, char *));
+extern void xsetenv __P((char *, char *));
+extern void sleep1000 __P((int));
+#ifdef DEBUG
+extern void opendebug __P((int, int));
+#endif
+#ifdef USEVARARGS
+# ifndef HAVE_VSNPRINTF
+extern int xvsnprintf __P((char *, int, char *, va_list));
+# endif
+#else
+extern int xsnprintf __P(());
+#endif
+
+
+/* acl.c */
+#ifdef MULTIUSER
+extern int AclCheckPermWin __P((struct acluser *, int, struct win *));
+extern int AclCheckPermCmd __P((struct acluser *, int, struct comm *));
+extern int AclSetPerm __P((struct acluser *, struct acluser *, char *, char *));
+extern int AclUmask __P((struct acluser *, char *, char **));
+extern int UsersAcl __P((struct acluser *, int, char **));
+extern void AclWinSwap __P((int, int));
+extern int NewWindowAcl __P((struct win *, struct acluser *));
+extern void FreeWindowAcl __P((struct win *));
+extern char *DoSu __P((struct acluser **, char *, char *, char *));
+extern int AclLinkUser __P((char *, char *));
+#endif /* MULTIUSER */
+extern int UserFreeCopyBuffer __P((struct acluser *));
+extern struct acluser **FindUserPtr __P((char *));
+extern int UserAdd __P((char *, char *, struct acluser **));
+extern int UserDel __P((char *, struct acluser **));
+
+
+/* braile.c */
+#ifdef HAVE_BRAILLE
+extern void InitBraille __P((void));
+extern void RefreshBraille __P((void));
+extern void DoBrailleAction __P((struct action *, int));
+extern void BGotoPos __P((struct layer *, int, int));
+extern void BPutChar __P((struct layer *, struct mchar *, int, int));
+extern void BPutStr __P((struct layer *, char *, int, struct mchar *, int, int));
+extern void BCDisplayLine __P((struct layer *, struct mline *, int, int, int, int));
+#endif
+
+
+
+
+/* layer.c */
+extern void LGotoPos __P((struct layer *, int, int));
+extern void LPutChar __P((struct layer *, struct mchar *, int, int));
+extern void LInsChar __P((struct layer *, struct mchar *, int, int, struct mline *));
+extern void LPutStr __P((struct layer *, char *, int, struct mchar *, int, int));
+extern void LPutWinMsg __P((struct layer *, char *, int, struct mchar *, int, int));
+extern void LScrollH __P((struct layer *, int, int, int, int, int, struct mline *));
+extern void LScrollV __P((struct layer *, int, int, int, int));
+extern void LClearAll __P((struct layer *, int));
+extern void LClearArea __P((struct layer *, int, int, int, int, int, int));
+extern void LClearLine __P((struct layer *, int, int, int, int, struct mline *));
+extern void LRefreshAll __P((struct layer *, int));
+extern void LCDisplayLine __P((struct layer *, struct mline *, int, int, int, int));
+extern void LCDisplayLineWrap __P((struct layer *, struct mline *, int, int, int, int));
+extern void LSetRendition __P((struct layer *, struct mchar *));
+extern void LWrapChar __P((struct layer *, struct mchar *, int, int, int, int));
+extern void LCursorVisibility __P((struct layer *, int));
+extern void LSetFlow __P((struct layer *, int));
+extern void LKeypadMode __P((struct layer *, int));
+extern void LCursorkeysMode __P((struct layer *, int));
+extern void LMouseMode __P((struct layer *, int));
+extern void LExtMouseMode __P((struct layer *, int));
+#if defined(USEVARARGS)
+extern void LMsg __P((int, const char *, ...)) __attribute__((format(printf, 2, 3)));
+#else
+extern void LMsg __P(());
+#endif
+extern void KillLayerChain __P((struct layer *));
+extern int InitOverlayPage __P((int, struct LayFuncs *, int));
+extern void ExitOverlayPage __P((void));
+extern int LayProcessMouse __P((struct layer *, unsigned char));
+extern void LayProcessMouseSwitch __P((struct layer *, int));
+
+/* teln.c */
+#ifdef BUILTIN_TELNET
+extern int TelOpenAndConnect __P((struct win *));
+extern int TelIsline __P((struct win *p));
+extern void TelProcessLine __P((char **, int *));
+extern int DoTelnet __P((char *, int *, int));
+extern int TelIn __P((struct win *, char *, int, int));
+extern void TelBreak __P((struct win *));
+extern void TelWindowSize __P((struct win *));
+extern void TelStatus __P((struct win *, char *, int));
+#endif
+
+/* nethack.c */
+extern const char *DoNLS __P((const char *));
+
+/* encoding.c */
+#ifdef ENCODINGS
+# ifdef UTF8
+extern void InitBuiltinTabs __P((void));
+extern struct mchar *recode_mchar __P((struct mchar *, int, int));
+extern struct mline *recode_mline __P((struct mline *, int, int, int));
+extern int FromUtf8 __P((int, int *));
+extern void AddUtf8 __P((int));
+extern int ToUtf8 __P((char *, int));
+extern int ToUtf8_comb __P((char *, int));
+extern int utf8_isdouble __P((int));
+extern int utf8_iscomb __P((int));
+extern void utf8_handle_comb __P((int, struct mchar *));
+extern int ContainsSpecialDeffont __P((struct mline *, int, int, int));
+extern int LoadFontTranslation __P((int, char *));
+extern void LoadFontTranslationsForEncoding __P((int));
+# endif /* UTF8 */
+extern void WinSwitchEncoding __P((struct win *, int));
+extern int FindEncoding __P((char *));
+extern char *EncodingName __P((int));
+extern int EncodingDefFont __P((int));
+extern void ResetEncoding __P((struct win *));
+extern int CanEncodeFont __P((int, int));
+extern int DecodeChar __P((int, int, int *));
+extern int RecodeBuf __P((unsigned char *, int, int, int, unsigned char *));
+# ifdef DW_CHARS
+extern int PrepareEncodedChar __P((int));
+# endif
+#endif
+extern int EncodeChar __P((char *, int, int, int *));
+
+/* layout.c */
+extern void RemoveLayout __P((struct layout *));
+extern int LayoutDumpCanvas __P((struct canvas *, char *));
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