Mercurial > hg > early-roguelike
view srogue/cx.h @ 144:708bb2dea17c
arogue7, xrogue: prevent potential NULL dereferencing.
It is possible for getpwuid() to fail and return NULL. Various md_get*
functions now check for this.
author | John "Elwin" Edwards |
---|---|
date | Mon, 18 May 2015 10:53:22 -0400 |
parents | 2128c7dc8a40 |
children |
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/* * Super-Rogue * Copyright (C) 1984 Robert D. Kindelberger * All rights reserved. * * See the file LICENSE.TXT for full copyright and licensing information. */ #include <stdio.h> #include <sgtty.h> #define bool char /* boolean variable */ #define reg register /* register abbr. */ #define TRUE (1) #define FALSE (0) #define ERR (0) /* default return on error */ #define OK (1) /* default return on good run */ #define _SUBWIN 01 /* window is a subwindow */ #define _ENDLINE 02 /* lines go to end of screen */ #define _FULLWIN 04 /* window is entire screen */ #define _SCROLLWIN 010 /* window could cause scroll */ #define _STANDOUT 0200 /* standout mode in effect */ #define _NOCHANGE -1 /* no change on this line */ #define _puts(s) tputs(s, 0, _putchar); typedef struct sgttyb SGTTY; #ifndef WINDOW #define WINDOW struct _win_st /* window description structure */ struct _win_st { short _cury, _curx; /* current y,x positions */ short _maxy, _maxx; /* maximum y,x positions */ short _begy, _begx; /* start y,x positions */ short _flags; /* various window flags */ bool _clear; /* need to clear */ bool _leave; /* leave cur x,y at last update */ bool _scroll; /* scrolls allowed */ char **_y; /* actual window */ short *_firstch; /* first change on line */ short *_lastch; /* last change on line */ }; extern bool My_term, /* user specied terminal */ _echoit, /* set if echoing characters */ _rawmode; /* set if terminal in raw mode */ extern char *Def_term, /* default terminal type */ ttytype[]; /* long name of current term */ # ifdef DEBUG extern FILE *outf; /* error outfile */ # endif extern int LINES, COLS; /* # of lines & columns */ extern int _tty_ch; /* channel with tty on it */ extern WINDOW *stdscr, *curscr; static SGTTY _tty, _res_flg; /* * Define VOID to stop lint from generating "null effect" * comments. */ # ifdef lint int __void__; /* place to assign to */ # define VOID(x) (__void__ = (int) (x)) # else # define VOID(x) (x) # endif # endif /* * psuedo functions for standard screen */ #define addch(ch) VOID(waddch(stdscr, ch)) #define getch() VOID(wgetch(stdscr)) #define addstr(str) VOID(waddstr(stdscr, str)) #define getstr(str) VOID(wgetstr(stdscr, str)) #define move(y, x) VOID(wmove(stdscr, y, x)) #define clear() VOID(wclear(stdscr)) #define erase() VOID(werase(stdscr)) #define clrtobot() VOID(wclrtobot(stdscr)) #define clrtoeol() VOID(wclrtoeol(stdscr)) #define insertln() VOID(winsertln(stdscr)) #define deleteln() VOID(wdeleteln(stdscr)) #define refresh() VOID(wrefresh(stdscr)) #define inch() VOID(winch(stdscr)) #ifdef STANDOUT #define standout() VOID(wstandout(stdscr)) #define standend() VOID(wstandend(stdscr)) #endif /* # define CBREAK FALSE # define _IOSTRG 01 */ /* * mv functions */ #define mvwaddch(win,y,x,ch) VOID(wmove(win,y,x)==ERR?ERR:waddch(win,ch)) #define mvwgetch(win,y,x,ch) VOID(wmove(win,y,x)==ERR?ERR:wgetch(win,ch)) #define mvwaddstr(win,y,x,str) VOID(wmove(win,y,x)==ERR?ERR:waddstr(win,str)) #define mvwgetstr(win,y,x,str) VOID(wmove(win,y,x)==ERR?ERR:wgetstr(win,str)) #define mvwinch(win,y,x) VOID(wmove(win,y,x) == ERR ? ERR : winch(win)) #define mvaddch(y,x,ch) mvwaddch(stdscr,y,x,ch) #define mvgetch(y,x,ch) mvwgetch(stdscr,y,x,ch) #define mvaddstr(y,x,str) mvwaddstr(stdscr,y,x,str) #define mvgetstr(y,x,str) mvwgetstr(stdscr,y,x,str) #define mvinch(y,x) mvwinch(stdscr,y,x) /* * psuedo functions */ #define clearok(win,bf) (win->_clear = bf) #define leaveok(win,bf) (win->_leave = bf) #define scrollok(win,bf) (win->_scroll = bf) #define getyx(win,y,x) y = win->_cury, x = win->_curx #define winch(win) (win->_y[win->_cury][win->_curx]) WINDOW *initscr(), *newwin();