| 1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This code is derived from software contributed to Berkeley by |
| 6 | * Edward Wang at The University of California, Berkeley. |
| 7 | * |
| 8 | * %sccs.include.redist.c% |
| 9 | */ |
| 10 | |
| 11 | #ifndef lint |
| 12 | static char sccsid[] = "@(#)wwinit.c 3.39 (Berkeley) %G%"; |
| 13 | #endif /* not lint */ |
| 14 | |
| 15 | #include "ww.h" |
| 16 | #include "tt.h" |
| 17 | #include <sys/signal.h> |
| 18 | #include <fcntl.h> |
| 19 | #include "char.h" |
| 20 | |
| 21 | wwinit() |
| 22 | { |
| 23 | register i, j; |
| 24 | char *kp; |
| 25 | int s; |
| 26 | |
| 27 | wwdtablesize = getdtablesize(); |
| 28 | wwhead.ww_forw = &wwhead; |
| 29 | wwhead.ww_back = &wwhead; |
| 30 | |
| 31 | s = sigblock(sigmask(SIGIO)); |
| 32 | if (signal(SIGIO, wwrint) == BADSIG || |
| 33 | signal(SIGCHLD, wwchild) == BADSIG || |
| 34 | signal(SIGPIPE, SIG_IGN) == BADSIG) { |
| 35 | wwerrno = WWE_SYS; |
| 36 | return -1; |
| 37 | } |
| 38 | |
| 39 | if (wwgettty(0, &wwoldtty) < 0) |
| 40 | return -1; |
| 41 | wwwintty = wwoldtty; |
| 42 | #ifndef POSIX_TTY |
| 43 | wwwintty.ww_sgttyb.sg_flags &= ~XTABS; |
| 44 | wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb; |
| 45 | wwnewtty.ww_sgttyb.sg_erase = -1; |
| 46 | wwnewtty.ww_sgttyb.sg_kill = -1; |
| 47 | wwnewtty.ww_sgttyb.sg_flags |= CBREAK; |
| 48 | wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD); |
| 49 | wwnewtty.ww_tchars.t_intrc = -1; |
| 50 | wwnewtty.ww_tchars.t_quitc = -1; |
| 51 | wwnewtty.ww_tchars.t_startc = -1; |
| 52 | wwnewtty.ww_tchars.t_stopc = -1; |
| 53 | wwnewtty.ww_tchars.t_eofc = -1; |
| 54 | wwnewtty.ww_tchars.t_brkc = -1; |
| 55 | wwnewtty.ww_ltchars.t_suspc = -1; |
| 56 | wwnewtty.ww_ltchars.t_dsuspc = -1; |
| 57 | wwnewtty.ww_ltchars.t_rprntc = -1; |
| 58 | wwnewtty.ww_ltchars.t_flushc = -1; |
| 59 | wwnewtty.ww_ltchars.t_werasc = -1; |
| 60 | wwnewtty.ww_ltchars.t_lnextc = -1; |
| 61 | wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT; |
| 62 | wwnewtty.ww_ldisc = wwoldtty.ww_ldisc; |
| 63 | #else |
| 64 | wwwintty.ww_termios.c_oflag &= ~OXTABS; |
| 65 | wwnewtty.ww_termios = wwoldtty.ww_termios; |
| 66 | wwnewtty.ww_termios.c_iflag &= |
| 67 | ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF | IMAXBEL); |
| 68 | wwnewtty.ww_termios.c_iflag |= INPCK; |
| 69 | wwnewtty.ww_termios.c_oflag = 0; |
| 70 | wwnewtty.ww_termios.c_cflag &= ~(CSIZE | PARENB); |
| 71 | wwnewtty.ww_termios.c_cflag |= CS8; |
| 72 | wwnewtty.ww_termios.c_lflag = 0; |
| 73 | for (i = 0; i < NCC; i++) |
| 74 | wwnewtty.ww_termios.c_cc[i] = _POSIX_VDISABLE; |
| 75 | #endif |
| 76 | wwnewtty.ww_fflags = wwoldtty.ww_fflags | FASYNC; |
| 77 | if (wwsettty(0, &wwnewtty, &wwoldtty) < 0) |
| 78 | goto bad; |
| 79 | |
| 80 | if ((wwterm = getenv("TERM")) == 0) { |
| 81 | wwerrno = WWE_BADTERM; |
| 82 | goto bad; |
| 83 | } |
| 84 | if (tgetent(wwtermcap, wwterm) != 1) { |
| 85 | wwerrno = WWE_BADTERM; |
| 86 | goto bad; |
| 87 | } |
| 88 | #ifndef POSIX_TTY |
| 89 | wwbaud = wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed]; |
| 90 | #else |
| 91 | #ifdef CBAUD |
| 92 | wwbaud = wwbaudmap[wwoldtty.ww_termios.c_cflag & CBAUD]; |
| 93 | #else |
| 94 | wwbaud = wwoldtty.ww_termios.c_ospeed; |
| 95 | #endif |
| 96 | #endif |
| 97 | |
| 98 | if (xxinit() < 0) |
| 99 | goto bad; |
| 100 | wwnrow = tt.tt_nrow; |
| 101 | wwncol = tt.tt_ncol; |
| 102 | wwavailmodes = tt.tt_availmodes; |
| 103 | wwwrap = tt.tt_wrap; |
| 104 | |
| 105 | if (wwavailmodes & WWM_REV) |
| 106 | wwcursormodes = WWM_REV | wwavailmodes & WWM_BLK; |
| 107 | else if (wwavailmodes & WWM_UL) |
| 108 | wwcursormodes = WWM_UL; |
| 109 | |
| 110 | if ((wwib = malloc((unsigned) 512)) == 0) |
| 111 | goto bad; |
| 112 | wwibe = wwib + 512; |
| 113 | wwibq = wwibp = wwib; |
| 114 | |
| 115 | if ((wwsmap = wwalloc(0, 0, wwnrow, wwncol, sizeof (char))) == 0) |
| 116 | goto bad; |
| 117 | for (i = 0; i < wwnrow; i++) |
| 118 | for (j = 0; j < wwncol; j++) |
| 119 | wwsmap[i][j] = WWX_NOBODY; |
| 120 | |
| 121 | wwos = (union ww_char **) |
| 122 | wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); |
| 123 | if (wwos == 0) |
| 124 | goto bad; |
| 125 | for (i = 0; i < wwnrow; i++) |
| 126 | for (j = 0; j < wwncol; j++) |
| 127 | wwos[i][j].c_w = ' '; |
| 128 | wwns = (union ww_char **) |
| 129 | wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); |
| 130 | if (wwns == 0) |
| 131 | goto bad; |
| 132 | for (i = 0; i < wwnrow; i++) |
| 133 | for (j = 0; j < wwncol; j++) |
| 134 | wwns[i][j].c_w = ' '; |
| 135 | |
| 136 | wwtouched = malloc((unsigned) wwnrow); |
| 137 | if (wwtouched == 0) { |
| 138 | wwerrno = WWE_NOMEM; |
| 139 | goto bad; |
| 140 | } |
| 141 | for (i = 0; i < wwnrow; i++) |
| 142 | wwtouched[i] = 0; |
| 143 | |
| 144 | wwupd = (struct ww_update *) malloc((unsigned) wwnrow * sizeof *wwupd); |
| 145 | if (wwupd == 0) { |
| 146 | wwerrno = WWE_NOMEM; |
| 147 | goto bad; |
| 148 | } |
| 149 | |
| 150 | wwindex[WWX_NOBODY] = &wwnobody; |
| 151 | wwnobody.ww_order = NWW; |
| 152 | |
| 153 | kp = wwwintermcap; |
| 154 | if (wwavailmodes & WWM_REV) |
| 155 | wwaddcap1(WWT_REV, &kp); |
| 156 | if (wwavailmodes & WWM_BLK) |
| 157 | wwaddcap1(WWT_BLK, &kp); |
| 158 | if (wwavailmodes & WWM_UL) |
| 159 | wwaddcap1(WWT_UL, &kp); |
| 160 | if (wwavailmodes & WWM_GRP) |
| 161 | wwaddcap1(WWT_GRP, &kp); |
| 162 | if (wwavailmodes & WWM_DIM) |
| 163 | wwaddcap1(WWT_DIM, &kp); |
| 164 | if (wwavailmodes & WWM_USR) |
| 165 | wwaddcap1(WWT_USR, &kp); |
| 166 | if (tt.tt_insline && tt.tt_delline || tt.tt_setscroll) |
| 167 | wwaddcap1(WWT_ALDL, &kp); |
| 168 | if (tt.tt_inschar) |
| 169 | wwaddcap1(WWT_IMEI, &kp); |
| 170 | if (tt.tt_insspace) |
| 171 | wwaddcap1(WWT_IC, &kp); |
| 172 | if (tt.tt_delchar) |
| 173 | wwaddcap1(WWT_DC, &kp); |
| 174 | wwaddcap("kb", &kp); |
| 175 | wwaddcap("ku", &kp); |
| 176 | wwaddcap("kd", &kp); |
| 177 | wwaddcap("kl", &kp); |
| 178 | wwaddcap("kr", &kp); |
| 179 | wwaddcap("kh", &kp); |
| 180 | if ((j = tgetnum("kn")) >= 0) { |
| 181 | char cap[32]; |
| 182 | |
| 183 | (void) sprintf(kp, "kn#%d:", j); |
| 184 | for (; *kp; kp++) |
| 185 | ; |
| 186 | for (i = 1; i <= j; i++) { |
| 187 | (void) sprintf(cap, "k%d", i); |
| 188 | wwaddcap(cap, &kp); |
| 189 | cap[0] = 'l'; |
| 190 | wwaddcap(cap, &kp); |
| 191 | } |
| 192 | } |
| 193 | /* |
| 194 | * It's ok to do this here even if setenv() is destructive |
| 195 | * since tt_init() has already made its own copy of it and |
| 196 | * wwterm now points to the copy. |
| 197 | */ |
| 198 | (void) setenv("TERM", WWT_TERM, 1); |
| 199 | |
| 200 | (void) sigsetmask(s); |
| 201 | /* catch typeahead before ASYNC was set */ |
| 202 | (void) kill(getpid(), SIGIO); |
| 203 | xxstart(); |
| 204 | return 0; |
| 205 | bad: |
| 206 | /* |
| 207 | * Don't bother to free storage. We're supposed |
| 208 | * to exit when wwinit fails anyway. |
| 209 | */ |
| 210 | (void) wwsettty(0, &wwoldtty, &wwnewtty); |
| 211 | (void) signal(SIGIO, SIG_DFL); |
| 212 | (void) sigsetmask(s); |
| 213 | return -1; |
| 214 | } |
| 215 | |
| 216 | wwaddcap(cap, kp) |
| 217 | register char *cap; |
| 218 | register char **kp; |
| 219 | { |
| 220 | char tbuf[512]; |
| 221 | char *tp = tbuf; |
| 222 | register char *str, *p; |
| 223 | |
| 224 | if ((str = tgetstr(cap, &tp)) != 0) { |
| 225 | while (*(*kp)++ = *cap++) |
| 226 | ; |
| 227 | (*kp)[-1] = '='; |
| 228 | while (*str) { |
| 229 | for (p = unctrl(*str++); *(*kp)++ = *p++;) |
| 230 | ; |
| 231 | (*kp)--; |
| 232 | } |
| 233 | *(*kp)++ = ':'; |
| 234 | **kp = 0; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | wwaddcap1(cap, kp) |
| 239 | register char *cap; |
| 240 | register char **kp; |
| 241 | { |
| 242 | while (*(*kp)++ = *cap++) |
| 243 | ; |
| 244 | (*kp)--; |
| 245 | } |