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[unix-history] / usr / src / usr.bin / window / wwinit.c
diff --git a/usr/src/usr.bin/window/wwinit.c b/usr/src/usr.bin/window/wwinit.c
index 13d3e20..169135e 100644 (file)
--- a/usr/src/usr.bin/window/wwinit.c
+++ b/usr/src/usr.bin/window/wwinit.c
@@ -1,115 +1,188 @@
 #ifndef lint
 #ifndef lint
-static char *sccsid = "@(#)wwinit.c    3.1 83/08/11";
+static char sccsid[] = "@(#)wwinit.c   3.23 %G%";
 #endif
 
 #include "ww.h"
 #endif
 
 #include "ww.h"
-
-static char *kp = wwkeys;
-extern char _sobuf[];
+#include "tt.h"
+#include <sys/signal.h>
+#include <fcntl.h>
+#include "char.h"
 
 wwinit()
 {
        register i, j;
 
 wwinit()
 {
        register i, j;
-       int kn;
+       char *kp;
+       register char **p, **q;
+       char **env, **termcap = 0;
+       extern char **environ;
+       int s;
 
 
-       setbuf(stdout, _sobuf);
        wwdtablesize = getdtablesize();
        wwdtablesize = getdtablesize();
+       if (wwdtablesize > 32)                          /* XXX */
+               wwdtablesize = 32;
+       wwhead.ww_forw = &wwhead;
+       wwhead.ww_back = &wwhead;
+
+       s = sigblock(sigmask(SIGIO));
+       if (signal(SIGIO, wwrint) == BADSIG)
+               return -1;
+
        if (wwgettty(0, &wwoldtty) < 0)
                return -1;
        wwwintty = wwoldtty;
        wwwintty.ww_sgttyb.sg_flags &= ~XTABS;
        if (wwgettty(0, &wwoldtty) < 0)
                return -1;
        wwwintty = wwoldtty;
        wwwintty.ww_sgttyb.sg_flags &= ~XTABS;
-       wwnewtty.ww_sgttyb.sg_flags = wwoldtty.ww_sgttyb.sg_flags;
-       wwnewtty.ww_sgttyb.sg_ispeed = wwoldtty.ww_sgttyb.sg_ispeed;
-       wwnewtty.ww_sgttyb.sg_ospeed = wwoldtty.ww_sgttyb.sg_ospeed;
-       wwnewtty.ww_lmode = wwoldtty.ww_lmode;
-       wwnewtty.ww_pgrp = wwoldtty.ww_pgrp;
-       wwnewtty.ww_ldisc = wwoldtty.ww_ldisc;
+       wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb;
+       wwnewtty.ww_sgttyb.sg_erase = -1;
+       wwnewtty.ww_sgttyb.sg_kill = -1;
        wwnewtty.ww_sgttyb.sg_flags |= CBREAK;
        wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD);
        wwnewtty.ww_sgttyb.sg_flags |= CBREAK;
        wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD);
-       wwnewtty.ww_lmode |= LLITOUT;
-       if (wwsettty(0, &wwnewtty) < 0)
+       wwnewtty.ww_tchars.t_intrc = -1;
+       wwnewtty.ww_tchars.t_quitc = -1;
+       wwnewtty.ww_tchars.t_startc = -1;
+       wwnewtty.ww_tchars.t_stopc = -1;
+       wwnewtty.ww_tchars.t_eofc = -1;
+       wwnewtty.ww_tchars.t_brkc = -1;
+       wwnewtty.ww_ltchars.t_suspc = -1;
+       wwnewtty.ww_ltchars.t_dsuspc = -1;
+       wwnewtty.ww_ltchars.t_rprntc = -1;
+       wwnewtty.ww_ltchars.t_flushc = -1;
+       wwnewtty.ww_ltchars.t_werasc = -1;
+       wwnewtty.ww_ltchars.t_lnextc = -1;
+       wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT;
+       wwnewtty.ww_ldisc = wwoldtty.ww_ldisc;
+       wwnewtty.ww_fflags = wwoldtty.ww_fflags | FASYNC;
+       if (wwsettty(0, &wwnewtty, &wwoldtty) < 0)
                goto bad;
 
                goto bad;
 
-       if ((wwterm = getenv("TERM")) == 0)
+       if ((wwterm = getenv("TERM")) == 0) {
+               wwerrno = WWE_BADTERM;
                goto bad;
                goto bad;
-       if (tgetent(wwtermcap, wwterm) != 1)
+       }
+       if (tgetent(wwtermcap, wwterm) != 1) {
+               wwerrno = WWE_BADTERM;
                goto bad;
                goto bad;
+       }
        wwbaud = wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed];
 
        if (ttinit() < 0)
                goto bad;
        wwnrow = tt.tt_nrow;
        wwncol = tt.tt_ncol;
        wwbaud = wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed];
 
        if (ttinit() < 0)
                goto bad;
        wwnrow = tt.tt_nrow;
        wwncol = tt.tt_ncol;
-       (*tt.tt_reset)();
-       (*tt.tt_clreos)();
+       wwavailmodes = tt.tt_availmodes;
+       wwwrap = tt.tt_wrap;
+       (*tt.tt_init)();
 
 
-       if ((wwsmap = wwalloc(wwnrow, wwncol, sizeof (char))) == 0)
+       if (wwavailmodes & WWM_REV)
+               wwcursormodes = WWM_REV | wwavailmodes & WWM_BLK;
+       else if (wwavailmodes & WWM_UL)
+               wwcursormodes = WWM_UL;
+
+       if ((wwib = malloc((unsigned) 512)) == 0)
+               goto bad;
+       wwibe = wwib + 512;
+       wwibq = wwibp = wwib;
+
+       if ((wwsmap = wwalloc(0, 0, wwnrow, wwncol, sizeof (char))) == 0)
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwsmap[i][j] = WWX_NOBODY;
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwsmap[i][j] = WWX_NOBODY;
+
        wwos = (union ww_char **)
        wwos = (union ww_char **)
-               wwalloc(wwnrow, wwncol, sizeof (union ww_char));
+               wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
        if (wwos == 0)
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwos[i][j].c_w = ' ';
        wwns = (union ww_char **)
        if (wwos == 0)
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwos[i][j].c_w = ' ';
        wwns = (union ww_char **)
-               wwalloc(wwnrow, wwncol, sizeof (union ww_char));
+               wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
        if (wwns == 0)
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwns[i][j].c_w = ' ';
 
        if (wwns == 0)
                goto bad;
        for (i = 0; i < wwnrow; i++)
                for (j = 0; j < wwncol; j++)
                        wwns[i][j].c_w = ' ';
 
+       wwtouched = malloc((unsigned) wwnrow);
+       if (wwtouched == 0) {
+               wwerrno = WWE_NOMEM;
+               goto bad;
+       }
+       for (i = 0; i < wwnrow; i++)
+               wwtouched[i] = 0;
+
        wwindex[WWX_NOBODY] = &wwnobody;
        wwnobody.ww_order = NWW;
 
        wwindex[WWX_NOBODY] = &wwnobody;
        wwnobody.ww_order = NWW;
 
-       addcap("kb");
-       addcap("ku");
-       addcap("kd");
-       addcap("kl");
-       addcap("kr");
-       addcap("kh");
-       if ((kn = tgetnum("kn")) >= 0) {
-               char cap[5];
+       kp = wwkeys;
+       wwaddcap("kb", &kp);
+       wwaddcap("ku", &kp);
+       wwaddcap("kd", &kp);
+       wwaddcap("kl", &kp);
+       wwaddcap("kr", &kp);
+       wwaddcap("kh", &kp);
+       if ((j = tgetnum("kn")) >= 0) {
+               char cap[32];
                int i;
 
                int i;
 
-               (void) sprintf(kp, "kn#%d:", kn);
+               (void) sprintf(kp, "kn#%d:", j);
                for (; *kp; kp++)
                        ;
                for (; *kp; kp++)
                        ;
-               for (i = 1; i <= kn; i++) {
+               for (i = 1; i <= j; i++) {
                        (void) sprintf(cap, "k%d", i);
                        (void) sprintf(cap, "k%d", i);
-                       addcap(cap);
+                       wwaddcap(cap, &kp);
                        cap[0] = 'l';
                        cap[0] = 'l';
-                       addcap(cap);
+                       wwaddcap(cap, &kp);
                }
        }
                }
        }
+       for (i = 0, p = environ; *p++; i++)
+               ;
+       if ((env = (char **)malloc((unsigned)(i + 3) * sizeof (char *))) == 0)
+               goto bad;
+       for (p = environ, q = env; *p; p++, q++) {
+               if (strncmp(*p, "TERM=", 5) == 0)
+                       *q = WWT_TERM;
+               else if (strncmp(*p, "TERMCAP=", 8) == 0)
+                       termcap = q;
+               else
+                       *q = *p;
+       }
+       *(termcap ? termcap : q++) = wwwintermcap;
+       *q = 0;
+       environ = env;
+
+       (void) signal(SIGPIPE, SIG_IGN);
+       (void) sigsetmask(s);
        return 0;
 bad:
        return 0;
 bad:
-       (void) wwsettty(0, &wwoldtty);
+       /*
+        * Don't bother to free storage.  We're supposed
+        * to exit when wwinit fails anyway.
+        */
+       (void) wwsettty(0, &wwoldtty, &wwnewtty);
+       (void) signal(SIGIO, SIG_DFL);
+       (void) sigsetmask(s);
        return -1;
 }
 
        return -1;
 }
 
-static
-addcap(cap)
+wwaddcap(cap, kp)
 register char *cap;
 register char *cap;
+register char **kp;
 {
        char tbuf[512];
        char *tp = tbuf;
        register char *str, *p;
 
        if ((str = tgetstr(cap, &tp)) != 0) {
 {
        char tbuf[512];
        char *tp = tbuf;
        register char *str, *p;
 
        if ((str = tgetstr(cap, &tp)) != 0) {
-               while (*kp++ = *cap++)
+               while (*(*kp)++ = *cap++)
                        ;
                        ;
-               kp[-1] = '=';
+               (*kp)[-1] = '=';
                while (*str) {
                while (*str) {
-                       for (p = unctrl(*str++); *kp++ = *p++;)
+                       for (p = unctrl(*str++); *(*kp)++ = *p++;)
                                ;
                                ;
-                       kp--;
+                       (*kp)--;
                }
                }
-               *kp++ = ':';
-               *kp = 0;
+               *(*kp)++ = ':';
+               **kp = 0;
        }
 }
        }
 }
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.