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128 lines
2.5 KiB
C
128 lines
2.5 KiB
C
/*
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* gettbin.c
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*
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* By Ross Ridge
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* Public Domain
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* 92/02/01 07:29:59
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*
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* Get a terminfo binary entry
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*
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*/
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#include "defs.h"
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#include <term.h>
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#ifdef USE_SCCS_IDS
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static const char SCCSid[] = "@(#) mytinfo gettbin.c 3.2 92/02/01 public domain, By Ross Ridge";
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#endif
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extern int _boolorder[], _numorder[], _strorder[];
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#ifdef TRUE_BYTE_ORDERING
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/* 8 bit char, 16 bit short, lsb first, twos complement */
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#define convshort(s) (*(short *)(s))
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#else
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#ifdef TWOS_COPLEMENT
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/* 8 bit char, 16 bit short, lsb last, twos complement */
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#define convshort(s) ((short)(((s[0] & 0377) << 8) | (s[1] & 0377)))
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#else
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/* anything else... */
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static short
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convshort(s)
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char *s; {
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register int a,b;
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a = (int) s[0] & 0377;
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b = (int) s[1] & 0377;
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if (a == 0377 && b == 0377)
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return -1;
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if (a == 0376 && b == 0377)
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return -2;
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return a + b * 256;
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}
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#endif
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#endif
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int
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_gettbin(buf, cur)
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char *buf;
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TERMINAL *cur; {
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register char *s;
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int i;
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int sz_names, sz_bools, sz_nums, sz_offs, sz_strs;
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int n_bools, n_nums, n_strs;
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char *strtbl;
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buf[MAX_BUF-1] = '\0';
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s = buf;
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if (convshort(s) != 0432)
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return 1;
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sz_names = convshort(s + 2);
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sz_bools = convshort(s + 4);
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n_nums = convshort(s + 6);
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n_strs = convshort(s + 8);
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sz_strs = convshort(s + 10);
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n_bools = sz_bools;
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sz_nums = n_nums * 2;
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sz_offs = n_strs * 2;
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if ((sz_names + sz_bools) & 1)
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sz_bools++;
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if (12 + sz_names + sz_bools + sz_nums + sz_offs + sz_strs >= MAX_BUF)
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return 1;
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s += 12;
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if ((cur->name_all = _addstr(s)) == NULL)
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return 1;
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s += sz_names;
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while(--s >= buf + 12) {
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if (*s == '|') {
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if ((cur->name_long = _addstr(s + 1)) == NULL)
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return 1;
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break;
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}
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}
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s = buf + 12 + sz_names;
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for(i = 0; i < n_bools && _boolorder[i] != -1; i++, s++) {
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if (cur->bools[_boolorder[i]] == -1 && *s == 1)
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cur->bools[_boolorder[i]] = 1;
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}
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s = buf + 12 + sz_names + sz_bools;
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for(i = 0; i < n_nums && _numorder[i] != -1; i++, s += 2) {
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if (convshort(s) == -2)
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cur->nums[_numorder[i]] = -1;
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else if (cur->nums[_numorder[i]] == -2 && convshort(s) != -1)
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cur->nums[_numorder[i]] = convshort(s);
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}
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s = buf + 12 + sz_names + sz_bools + sz_nums;
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strtbl = s + sz_offs;
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for(i = 0; i < n_strs && _strorder[i] != -1; i++, s += 2) {
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if (convshort(s) == -2)
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cur->strs[_strorder[i]] = NULL;
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else if (cur->strs[_strorder[i]] == (char *) -1
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&& convshort(s) != -1) {
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#ifdef DEBUG
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printf("$%s ", strnames[_strorder[i]]);
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#endif
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if ((cur->strs[_strorder[i]]
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= _addstr(strtbl + convshort(s))) == NULL)
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return 1;
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}
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}
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return 0;
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}
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