we have to initialize escapec before processing arguments

[unix-history] / usr / src / usr.bin / window / main.c

#ifndef lint
static char sccsid[] = "@(#)main.c      3.28 %G%";
#endif

#include "defs.h"
#include <sys/signal.h>
#include <stdio.h>
#include "string.h"
#include "char.h"
#include "local.h"

#define next(a) (*++*(a) ? *(a) : (*++(a) ? *(a) : (char *)usage()))

/*ARGSUSED*/
main(argc, argv)
char **argv;
{
       register char *p;
       char fflag = 0;
       char dflag = 0;
       char xflag = 0;
       char *cmd = 0;
       char tflag = 0;

       nbufline = NLINE;
       escapec = ESCAPEC;      
       if (p = rindex(*argv, '/'))
               p++;
       else
               p = *argv;
       debug = strcmp(p, "a.out") == 0;
       while (*++argv) {
               if (**argv == '-') {
                       switch (*++*argv) {
                       case 'f':
                               fflag++;
                               break;
                       case 'c':
                               if (cmd != 0) {
                                       (void) fprintf(stderr,
                                               "Only one -c allowed.\n");
                                       (void) usage();
                               }
                               cmd = next(argv);
                               break;
                       case 'e':
                               setescape(next(argv));
                               break;
                       case 't':
                               tflag++;
                               break;
                       case 'd':
                               dflag++;
                               break;
                       case 'D':
                               debug = !debug;
                               break;
                       case 'x':
                               xflag++;
                               break;
                       default:
                               (void) usage();
                       }
               } else
                       (void) usage();
       }
       if ((p = getenv("SHELL")) == 0)
               p = SHELL;
       if ((shellfile = str_cpy(p)) == 0)
               nomem();
       if (p = rindex(shellfile, '/'))
               p++;
       else
               p = shellfile;
       shell[0] = p;
       shell[1] = 0;
       (void) gettimeofday(&starttime, (struct timezone *)0);
       if (wwinit() < 0) {
               (void) fprintf(stderr, "%s.\n", wwerror());
               exit(1);
       }
       if (debug)
               wwnewtty.ww_tchars.t_quitc = wwoldtty.ww_tchars.t_quitc;
       if (xflag) {
               wwnewtty.ww_tchars.t_stopc = wwoldtty.ww_tchars.t_stopc;
               wwnewtty.ww_tchars.t_startc = wwoldtty.ww_tchars.t_startc;
       }
       if (debug || xflag)
               (void) wwsettty(0, &wwnewtty, &wwoldtty);

       if ((cmdwin = wwopen(WWO_REVERSE, 1, wwncol, 0, 0, 0)) == 0) {
               (void) wwflush();
               (void) fprintf(stderr, "%s.\r\n", wwerror());
               goto bad;
       }
       cmdwin->ww_mapnl = 1;
       cmdwin->ww_nointr = 1;
       cmdwin->ww_noupdate = 1;
       cmdwin->ww_unctrl = 1;
       if ((framewin = wwopen(WWO_GLASS|WWO_FRAME, wwnrow, wwncol, 0, 0, 0))
           == 0) {
               (void) wwflush();
               (void) fprintf(stderr, "%s.\r\n", wwerror());
               goto bad;
       }
       wwadd(framewin, &wwhead);
       if ((boxwin = wwopen(WWO_GLASS, wwnrow, wwncol, 0, 0, 0)) == 0) {
               (void) wwflush();
               (void) fprintf(stderr, "%s.\r\n", wwerror());
               goto bad;
       }
       fgwin = framewin;

       wwupdate();
       wwflush();
       (void) signal(SIGCHLD, wwchild);
       setvars();

       setterse(tflag);
       setcmd(1);
       if (cmd != 0)
               (void) dolongcmd(cmd, (struct value *)0, 0);
       if (!fflag) {
               if (dflag || doconfig() < 0)
                       dodefault();
               if (selwin != 0)
                       setcmd(0);
       }

       mloop();

       wwupdate();
       wwflush();
bad:
       wwend();
       return 0;
}

usage()
{
       (void) fprintf(stderr, "Usage: window [-e escape-char] [-c command] [-t] [-f] [-d]\n");
       exit(1);
       return 0;                       /* for lint */
}

nomem()
{
       (void) fprintf(stderr, "Out of memory.\n");
       exit(1);
}