# 2.11BSD#431 - /usr/src/ucb/window/wwopen.c

##### Functions

    wwopen            X

       1: #if !defined(lint) && defined(DOSCCS)
       2: static char sccsid[] = "@(#)wwopen.c	3.21.1 1996/3/22";
       3: #endif
       4:
       5: /*
       6:  * Copyright (c) 1983 Regents of the University of California,
       7:  * All rights reserved.  Redistribution permitted subject to
       8:  * the terms of the Berkeley Software License Agreement.
       9:  */
      10:
      11: #include "ww.h"
      12: #include <sys/types.h>
      13: #include <sys/socket.h>
      14:
      15: struct ww *
      16: wwopen(flags, nrow, ncol, row, col, nline)
      17: {
      18:     register struct ww *w;
      19:     register i, j;
      20:     char m;
      21:     short nvis;
      22:
      23:     w = (struct ww *)calloc(sizeof (struct ww), 1);
      24:     if (w == 0) {
      25:         wwerrno = WWE_NOMEM;
      26:         goto bad;
      27:     }
      28:     w->ww_pty = -1;
      29:     w->ww_socket = -1;
      30:
      31:     for (i = 0; i < NWW && wwindex[i] != 0; i++)
      32:         ;
      33:     if (i >= NWW) {
      34:         wwerrno = WWE_TOOMANY;
      35:         goto bad;
      36:     }
      37:     w->ww_index = i;
      38:
      39:     if (nline < nrow)
      40:         nline = nrow;
      41:
      42:     w->ww_w.t = row;
      43:     w->ww_w.b = row + nrow;
      44:     w->ww_w.l = col;
      45:     w->ww_w.r = col + ncol;
      46:     w->ww_w.nr = nrow;
      47:     w->ww_w.nc = ncol;
      48:
      49:     w->ww_b.t = row;
      50:     w->ww_b.b = row + nline;
      51:     w->ww_b.l = col;
      52:     w->ww_b.r = col + ncol;
      53:     w->ww_b.nr = nline;
      54:     w->ww_b.nc = ncol;
      55:
      56:     w->ww_i.t = MAX(w->ww_w.t, 0);
      57:     w->ww_i.b = MIN(w->ww_w.b, wwnrow);
      58:     w->ww_i.l = MAX(w->ww_w.l, 0);
      59:     w->ww_i.r = MIN(w->ww_w.r, wwncol);
      60:     w->ww_i.nr = w->ww_i.b - w->ww_i.t;
      61:     w->ww_i.nc = w->ww_i.r - w->ww_i.l;
      62:
      63:     w->ww_cur.r = w->ww_w.t;
      64:     w->ww_cur.c = w->ww_w.l;
      65:
      66:     if (flags & WWO_PTY) {
      67:         struct winsize winsize;
      68:
      69:         if (wwgetpty(w) < 0)
      70:             goto bad;
      71:         if (wwsettty(w->ww_pty, &wwwintty, (struct ww_tty *)0) < 0)
      72:             goto bad;
      73:         winsize.ws_row = nrow;
      74:         winsize.ws_col = ncol;
      75:         winsize.ws_xpixel = winsize.ws_ypixel = 0;
      76:         if (ioctl(w->ww_pty, TIOCSWINSZ, (char *)&winsize) < 0) {
      77:             wwerrno = WWE_SYS;
      78:             goto bad;
      79:         }
      80:         w->ww_ispty = 1;
      81:     } else if (flags & WWO_SOCKET) {
      82:         int d[2];
      83:         if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, d) < 0) {
      84:             wwerrno = WWE_SYS;
      85:             goto bad;
      86:         }
      87:         w->ww_pty = d[0];
      88:         w->ww_socket = d[1];
      89:     }
      90:     if (flags & (WWO_PTY|WWO_SOCKET)) {
      91:         if ((w->ww_ob = (char *)malloc(512)) == 0) {
      92:             wwerrno = WWE_NOMEM;
      93:             goto bad;
      94:         }
      95:         w->ww_obe = w->ww_ob + 512;
      96:         w->ww_obp = w->ww_obq = w->ww_ob;
      97:     }
      98:
      99:     w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
     100:         w->ww_w.nr, w->ww_w.nc, sizeof (char));
     101:     if (w->ww_win == 0)
     102:         goto bad;
     103:     m = 0;
     104:     if (flags & WWO_GLASS)
     105:         m |= WWM_GLS;
     106:     if (flags & WWO_REVERSE)
     107:         m |= WWM_REV;
     108:     for (i = w->ww_w.t; i < w->ww_w.b; i++)
     109:         for (j = w->ww_w.l; j < w->ww_w.r; j++)
     110:             w->ww_win[i][j] = m;
     111:
     112:     if (flags & WWO_FRAME) {
     113:         w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
     114:             w->ww_w.nr, w->ww_w.nc, sizeof (char));
     115:         if (w->ww_fmap == 0)
     116:             goto bad;
     117:         for (i = w->ww_w.t; i < w->ww_w.b; i++)
     118:             for (j = w->ww_w.l; j < w->ww_w.r; j++)
     119:                 w->ww_fmap[i][j] = 0;
     120:     }
     121:
     122:     w->ww_buf = (union ww_char **)
     123:         wwalloc(w->ww_b.t, w->ww_b.l,
     124:             w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
     125:     if (w->ww_buf == 0)
     126:         goto bad;
     127:     for (i = w->ww_b.t; i < w->ww_b.b; i++)
     128:         for (j = w->ww_b.l; j < w->ww_b.r; j++)
     129:             w->ww_buf[i][j].c_w = ' ';
     130:
     131:     w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short));
     132:     if (w->ww_nvis == 0) {
     133:         wwerrno = WWE_NOMEM;
     134:         goto bad;
     135:     }
     136:     w->ww_nvis -= w->ww_w.t;
     137:     nvis = m ? 0 : w->ww_w.nc;
     138:     for (i = w->ww_w.t; i < w->ww_w.b; i++)
     139:         w->ww_nvis[i] = nvis;
     140:
     141:     w->ww_state = WWS_INITIAL;
     142:     w->ww_oflags = flags;
     143:     return wwindex[w->ww_index] = w;
     144: bad:
     145:     if (w != 0) {
     146:         if (w->ww_win != 0)
     147:             wwfree(w->ww_win, w->ww_w.t);
     148:         if (w->ww_fmap != 0)
     149:             wwfree(w->ww_fmap, w->ww_w.t);
     150:         if (w->ww_buf != 0)
     151:             wwfree((char **)w->ww_buf, w->ww_b.t);
     152:         if (w->ww_nvis != 0)
     153:             free((char *)(w->ww_nvis + w->ww_w.t));
     154:         if (w->ww_ob != 0)
     155:             free(w->ww_ob);
     156:         if (w->ww_pty >= 0)
     157:             (void) close(w->ww_pty);
     158:         if (w->ww_socket >= 0)
     159:             (void) close(w->ww_socket);
     160:         free((char *)w);
     161:     }
     162:     return 0;
     163: }

#### Defined functions

wwopen defined in line 15; used 6 times

- in /usr/src/ucb/window/main.c line 115, 124, 131
- in /usr/src/ucb/window/win.c line 48, 119
- in /usr/src/ucb/window/ww.h line 246

#### Defined variables

sccsid defined in line 2; never used

Last modified: 1996-03-23 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 623 |