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1.1 ! root 1: /* ! 2: * Copyright (c) 1983 Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms are permitted ! 6: * provided that the above copyright notice and this paragraph are ! 7: * duplicated in all such forms and that any documentation, ! 8: * advertising materials, and other materials related to such ! 9: * distribution and use acknowledge that the software was developed ! 10: * by the University of California, Berkeley. The name of the ! 11: * University may not be used to endorse or promote products derived ! 12: * from this software without specific prior written permission. ! 13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 16: */ ! 17: ! 18: #ifndef lint ! 19: static char sccsid[] = "@(#)wwopen.c 3.25 (Berkeley) 6/29/88"; ! 20: #endif /* not lint */ ! 21: ! 22: #include "ww.h" ! 23: #include <sys/types.h> ! 24: #include <sys/socket.h> ! 25: ! 26: struct ww * ! 27: wwopen(flags, nrow, ncol, row, col, nline) ! 28: { ! 29: register struct ww *w; ! 30: register i, j; ! 31: char m; ! 32: short nvis; ! 33: ! 34: w = (struct ww *)calloc(sizeof (struct ww), 1); ! 35: if (w == 0) { ! 36: wwerrno = WWE_NOMEM; ! 37: goto bad; ! 38: } ! 39: w->ww_pty = -1; ! 40: w->ww_socket = -1; ! 41: ! 42: for (i = 0; i < NWW && wwindex[i] != 0; i++) ! 43: ; ! 44: if (i >= NWW) { ! 45: wwerrno = WWE_TOOMANY; ! 46: goto bad; ! 47: } ! 48: w->ww_index = i; ! 49: ! 50: if (nline < nrow) ! 51: nline = nrow; ! 52: ! 53: w->ww_w.t = row; ! 54: w->ww_w.b = row + nrow; ! 55: w->ww_w.l = col; ! 56: w->ww_w.r = col + ncol; ! 57: w->ww_w.nr = nrow; ! 58: w->ww_w.nc = ncol; ! 59: ! 60: w->ww_b.t = row; ! 61: w->ww_b.b = row + nline; ! 62: w->ww_b.l = col; ! 63: w->ww_b.r = col + ncol; ! 64: w->ww_b.nr = nline; ! 65: w->ww_b.nc = ncol; ! 66: ! 67: w->ww_i.t = MAX(w->ww_w.t, 0); ! 68: w->ww_i.b = MIN(w->ww_w.b, wwnrow); ! 69: w->ww_i.l = MAX(w->ww_w.l, 0); ! 70: w->ww_i.r = MIN(w->ww_w.r, wwncol); ! 71: w->ww_i.nr = w->ww_i.b - w->ww_i.t; ! 72: w->ww_i.nc = w->ww_i.r - w->ww_i.l; ! 73: ! 74: w->ww_cur.r = w->ww_w.t; ! 75: w->ww_cur.c = w->ww_w.l; ! 76: ! 77: if (flags & WWO_PTY) { ! 78: struct winsize winsize; ! 79: ! 80: if (wwgetpty(w) < 0) ! 81: goto bad; ! 82: if (wwsettty(w->ww_pty, &wwwintty, (struct ww_tty *)0) < 0) ! 83: goto bad; ! 84: winsize.ws_row = nrow; ! 85: winsize.ws_col = ncol; ! 86: winsize.ws_xpixel = winsize.ws_ypixel = 0; ! 87: if (ioctl(w->ww_pty, TIOCSWINSZ, (char *)&winsize) < 0) { ! 88: wwerrno = WWE_SYS; ! 89: goto bad; ! 90: } ! 91: w->ww_ispty = 1; ! 92: } else if (flags & WWO_SOCKET) { ! 93: int d[2]; ! 94: if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, d) < 0) { ! 95: wwerrno = WWE_SYS; ! 96: goto bad; ! 97: } ! 98: w->ww_pty = d[0]; ! 99: w->ww_socket = d[1]; ! 100: } ! 101: if (flags & (WWO_PTY|WWO_SOCKET)) { ! 102: if ((w->ww_ob = malloc(512)) == 0) { ! 103: wwerrno = WWE_NOMEM; ! 104: goto bad; ! 105: } ! 106: w->ww_obe = w->ww_ob + 512; ! 107: w->ww_obp = w->ww_obq = w->ww_ob; ! 108: } ! 109: ! 110: w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l, ! 111: w->ww_w.nr, w->ww_w.nc, sizeof (char)); ! 112: if (w->ww_win == 0) ! 113: goto bad; ! 114: m = 0; ! 115: if (flags & WWO_GLASS) ! 116: m |= WWM_GLS; ! 117: if (flags & WWO_REVERSE) ! 118: if (wwavailmodes & WWM_REV) ! 119: m |= WWM_REV; ! 120: else ! 121: flags &= ~WWO_REVERSE; ! 122: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 123: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 124: w->ww_win[i][j] = m; ! 125: ! 126: if (flags & WWO_FRAME) { ! 127: w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l, ! 128: w->ww_w.nr, w->ww_w.nc, sizeof (char)); ! 129: if (w->ww_fmap == 0) ! 130: goto bad; ! 131: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 132: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 133: w->ww_fmap[i][j] = 0; ! 134: } ! 135: ! 136: w->ww_buf = (union ww_char **) ! 137: wwalloc(w->ww_b.t, w->ww_b.l, ! 138: w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char)); ! 139: if (w->ww_buf == 0) ! 140: goto bad; ! 141: for (i = w->ww_b.t; i < w->ww_b.b; i++) ! 142: for (j = w->ww_b.l; j < w->ww_b.r; j++) ! 143: w->ww_buf[i][j].c_w = ' '; ! 144: ! 145: w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short)); ! 146: if (w->ww_nvis == 0) { ! 147: wwerrno = WWE_NOMEM; ! 148: goto bad; ! 149: } ! 150: w->ww_nvis -= w->ww_w.t; ! 151: nvis = m ? 0 : w->ww_w.nc; ! 152: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 153: w->ww_nvis[i] = nvis; ! 154: ! 155: w->ww_state = WWS_INITIAL; ! 156: w->ww_oflags = flags; ! 157: return wwindex[w->ww_index] = w; ! 158: bad: ! 159: if (w != 0) { ! 160: if (w->ww_win != 0) ! 161: wwfree(w->ww_win, w->ww_w.t); ! 162: if (w->ww_fmap != 0) ! 163: wwfree(w->ww_fmap, w->ww_w.t); ! 164: if (w->ww_buf != 0) ! 165: wwfree((char **)w->ww_buf, w->ww_b.t); ! 166: if (w->ww_nvis != 0) ! 167: free((char *)(w->ww_nvis + w->ww_w.t)); ! 168: if (w->ww_ob != 0) ! 169: free(w->ww_ob); ! 170: if (w->ww_pty >= 0) ! 171: (void) close(w->ww_pty); ! 172: if (w->ww_socket >= 0) ! 173: (void) close(w->ww_socket); ! 174: free((char *)w); ! 175: } ! 176: return 0; ! 177: }
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