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1.1 ! root 1: #ifndef lint ! 2: static char sccsid[] = "@(#)wwopen.c 3.21 4/24/85"; ! 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, (int)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 = 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: }
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