| 1 | #ifndef lint |
| 2 | static char *sccsid = "@(#)wwinit.c 3.18 84/04/16"; |
| 3 | #endif |
| 4 | |
| 5 | #include "ww.h" |
| 6 | #include "tt.h" |
| 7 | #include <sys/signal.h> |
| 8 | #include <fcntl.h> |
| 9 | #include "char.h" |
| 10 | |
| 11 | wwinit() |
| 12 | { |
| 13 | register i, j; |
| 14 | char *kp; |
| 15 | register char **p, **q; |
| 16 | char **env, **termcap; |
| 17 | extern char **environ; |
| 18 | int s; |
| 19 | |
| 20 | wwdtablesize = getdtablesize(); |
| 21 | wwhead.ww_forw = &wwhead; |
| 22 | wwhead.ww_back = &wwhead; |
| 23 | |
| 24 | s = sigblock(sigmask(SIGIO)); |
| 25 | if (signal(SIGIO, wwrint) == BADSIG) |
| 26 | return -1; |
| 27 | |
| 28 | if (wwgettty(0, &wwoldtty) < 0) |
| 29 | return -1; |
| 30 | wwwintty = wwoldtty; |
| 31 | wwwintty.ww_sgttyb.sg_flags &= ~XTABS; |
| 32 | wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb; |
| 33 | wwnewtty.ww_sgttyb.sg_erase = -1; |
| 34 | wwnewtty.ww_sgttyb.sg_kill = -1; |
| 35 | wwnewtty.ww_sgttyb.sg_flags |= CBREAK; |
| 36 | wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD); |
| 37 | wwnewtty.ww_tchars.t_intrc = -1; |
| 38 | wwnewtty.ww_tchars.t_quitc = -1; |
| 39 | wwnewtty.ww_tchars.t_startc = -1; |
| 40 | wwnewtty.ww_tchars.t_stopc = -1; |
| 41 | wwnewtty.ww_tchars.t_eofc = -1; |
| 42 | wwnewtty.ww_tchars.t_brkc = -1; |
| 43 | wwnewtty.ww_ltchars.t_suspc = -1; |
| 44 | wwnewtty.ww_ltchars.t_dsuspc = -1; |
| 45 | wwnewtty.ww_ltchars.t_rprntc = -1; |
| 46 | wwnewtty.ww_ltchars.t_flushc = -1; |
| 47 | wwnewtty.ww_ltchars.t_werasc = -1; |
| 48 | wwnewtty.ww_ltchars.t_lnextc = -1; |
| 49 | wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT; |
| 50 | wwnewtty.ww_ldisc = wwoldtty.ww_ldisc; |
| 51 | wwnewtty.ww_fflags = wwoldtty.ww_fflags | FASYNC; |
| 52 | |
| 53 | if (wwsettty(0, &wwnewtty) < 0) |
| 54 | goto bad; |
| 55 | |
| 56 | if ((wwterm = getenv("TERM")) == 0) { |
| 57 | wwerrno = WWE_BADTERM; |
| 58 | goto bad; |
| 59 | } |
| 60 | if (tgetent(wwtermcap, wwterm) != 1) { |
| 61 | wwerrno = WWE_BADTERM; |
| 62 | goto bad; |
| 63 | } |
| 64 | wwbaud = wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed]; |
| 65 | |
| 66 | if (ttinit() < 0) |
| 67 | goto bad; |
| 68 | wwnrow = tt.tt_nrow; |
| 69 | wwncol = tt.tt_ncol; |
| 70 | wwavailmodes = tt.tt_availmodes; |
| 71 | wwwrap = tt.tt_wrap; |
| 72 | (*tt.tt_init)(); |
| 73 | |
| 74 | if (wwavailmodes & WWM_REV) |
| 75 | wwcursormodes = WWM_REV | wwavailmodes & WWM_BLK; |
| 76 | else if (wwavailmodes & WWM_UL) |
| 77 | wwcursormodes = WWM_UL; |
| 78 | |
| 79 | if ((wwib = malloc((unsigned) 512)) == 0) |
| 80 | goto bad; |
| 81 | wwibe = wwib + 512; |
| 82 | wwibq = wwibp = wwib; |
| 83 | |
| 84 | if ((wwsmap = wwalloc(0, 0, wwnrow, wwncol, sizeof (char))) == 0) |
| 85 | goto bad; |
| 86 | for (i = 0; i < wwnrow; i++) |
| 87 | for (j = 0; j < wwncol; j++) |
| 88 | wwsmap[i][j] = WWX_NOBODY; |
| 89 | |
| 90 | wwos = (union ww_char **) |
| 91 | wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); |
| 92 | if (wwos == 0) |
| 93 | goto bad; |
| 94 | for (i = 0; i < wwnrow; i++) |
| 95 | for (j = 0; j < wwncol; j++) |
| 96 | wwos[i][j].c_w = ' '; |
| 97 | wwns = (union ww_char **) |
| 98 | wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char)); |
| 99 | if (wwns == 0) |
| 100 | goto bad; |
| 101 | for (i = 0; i < wwnrow; i++) |
| 102 | for (j = 0; j < wwncol; j++) |
| 103 | wwns[i][j].c_w = ' '; |
| 104 | |
| 105 | wwtouched = malloc((unsigned) wwnrow); |
| 106 | if (wwtouched == 0) { |
| 107 | wwerrno = WWE_NOMEM; |
| 108 | goto bad; |
| 109 | } |
| 110 | for (i = 0; i < wwnrow; i++) |
| 111 | wwtouched[i] = 0; |
| 112 | |
| 113 | wwindex[WWX_NOBODY] = &wwnobody; |
| 114 | wwnobody.ww_order = NWW; |
| 115 | |
| 116 | kp = wwkeys; |
| 117 | addcap("kb", &kp); |
| 118 | addcap("ku", &kp); |
| 119 | addcap("kd", &kp); |
| 120 | addcap("kl", &kp); |
| 121 | addcap("kr", &kp); |
| 122 | addcap("kh", &kp); |
| 123 | if ((j = tgetnum("kn")) >= 0) { |
| 124 | char cap[32]; |
| 125 | int i; |
| 126 | |
| 127 | (void) sprintf(kp, "kn#%d:", j); |
| 128 | for (; *kp; kp++) |
| 129 | ; |
| 130 | for (i = 1; i <= j; i++) { |
| 131 | (void) sprintf(cap, "k%d", i); |
| 132 | addcap(cap, &kp); |
| 133 | cap[0] = 'l'; |
| 134 | addcap(cap, &kp); |
| 135 | } |
| 136 | } |
| 137 | for (i = 0, p = environ; *p++; i++) |
| 138 | ; |
| 139 | if ((env = (char **)malloc((unsigned)(i + 3) * sizeof (char *))) == 0) |
| 140 | goto bad; |
| 141 | for (p = environ, q = env; *p; p++, q++) { |
| 142 | if (strncmp(*p, "TERM=", 5) == 0) |
| 143 | *q = WWT_TERM; |
| 144 | else if (strncmp(*p, "TERMCAP=", 8) == 0) |
| 145 | termcap = q; |
| 146 | else |
| 147 | *q = *p; |
| 148 | } |
| 149 | *(termcap ? termcap : q++) = wwwintermcap; |
| 150 | *q = 0; |
| 151 | environ = env; |
| 152 | |
| 153 | (void) sigsetmask(s); |
| 154 | return 0; |
| 155 | bad: |
| 156 | /* |
| 157 | * Don't bother to free storage. We're supposed |
| 158 | * to exit when wwinit fails anyway. |
| 159 | */ |
| 160 | (void) wwsettty(0, &wwoldtty); |
| 161 | (void) signal(SIGIO, SIG_DFL); |
| 162 | (void) sigsetmask(s); |
| 163 | return -1; |
| 164 | } |
| 165 | |
| 166 | static |
| 167 | addcap(cap, kp) |
| 168 | register char *cap; |
| 169 | register char **kp; |
| 170 | { |
| 171 | char tbuf[512]; |
| 172 | char *tp = tbuf; |
| 173 | register char *str, *p; |
| 174 | |
| 175 | if ((str = tgetstr(cap, &tp)) != 0) { |
| 176 | while (*(*kp)++ = *cap++) |
| 177 | ; |
| 178 | (*kp)[-1] = '='; |
| 179 | while (*str) { |
| 180 | for (p = unctrl(*str++); *(*kp)++ = *p++;) |
| 181 | ; |
| 182 | (*kp)--; |
| 183 | } |
| 184 | *(*kp)++ = ':'; |
| 185 | **kp = 0; |
| 186 | } |
| 187 | } |