int
odftread()
{
if (Already_read)
return(0);
Already_read = TRUE;
if (!Vflag) {
/*
* table is hard-coded for "FACE" FMLI
*/
register int i;
for (i = 0; i < MAXODFT && FMLI_detab[i].objtype[0] != '\0';i++)
Detab[i] = FMLI_detab[i];
Detab[i].objtype[0] = '\0';
}
else {
register int i, moffset;
char *p, *q, buf[PATHSIZ];
char *b;
char *tmpstr;
FILE *fp;
int offset = 0, magic;
long magic_offset[MAXMAGIC+1];
char magic_bytes[MAXMAGIC];
char *get_skip();
char *tab_parse();
long tab_long();
p = expand("$OASYS/info/OH/externals/detect.tab");
fp = fopen(p, "r");
free(p);
if (fp == NULL)
fatal(MISSING, "detect.tab");
tmpstr = NULL;
while (get_skip(buf, PATHSIZ, fp) != NULL) {
/* flush optional line number */
for (b = buf; *b == '\t' || isdigit(*b); b++)
;
b = tab_parse(&tmpstr, b);
strncpy(Detab[offset].objtype, tmpstr, OTYPESIZ);
if (b) {
char *unbackslash();
b = tab_parse(&Detab[offset].defodi, b);
p = unbackslash(Detab[offset].defodi);
if (p[0] == '"')
memshift(p, p + 1, strlen(p));
p += strlen(p) - 1;
if (p[0] == '"')
p[0] = '\0';
}
Detab[offset].defmask = tab_long(&b, 16);
if (b && *b)
Detab[offset].func_type = tab_long(&b, 16);
else {
#ifdef _DEBUG
_debug(stderr, "BAD ODFT '%s'\n", Detab[offset].objtype);
#endif
error(MUNGED, "heuristics table");
continue;
}
switch (Detab[offset].func_type) {
case F_INT:
Detab[offset].intern_func = tab_long(&b, 0);
break;
case F_SHELL:
case F_EXEC:
b = tab_parse(&tmpstr, b);
Detab[offset].extern_func = tmpstr;
tmpstr = NULL;
break;
case F_PARTS:
case F_DPARTS:
break;
case F_MAGIC:
p = b;
magic = 0;
while (*p && magic < MAXMAGIC) {
moffset = strtol(p, &q, 0);
if (p == q) /* strtol failed */
break;
p = q;
while (*q && isspace(*q))
q++;
if (*q == '"') {
q++;
while (*q && *q != '"' && magic < MAXMAGIC-1) {
magic_bytes[magic] = *q;
magic_offset[magic] = moffset++;
magic++;
q++;
}
if (*q)
q++;
} else {
magic_offset[magic] = moffset;
magic_bytes[magic] = (char) strtol(p,&q,0);
if (p == q) {
p = '\0';
break;
} else
p = q;
magic++;
}
}
if (magic == 0) {
#ifdef _DEBUG
_debug(stderr, "BAD ODFT '%s' MAGIC: %s\n", Detab[offset].objtype, q);
#endif
error(MUNGED, "heuristics magic number");
continue;
}
magic_offset[magic] = -1L;
/* for efficiency, the most common magic number
* case, 0, 1, -1, is coded up.
*/
if (magic == 2 && magic_offset[0] == 0L &&
magic_offset[1] == 1L) {
Detab[offset].magic_offset = &(Normal_mag_offset[0]);
}
else {
Detab[offset].magic_offset = (long *)calloc(magic+1, sizeof(long));
for (i = 0; i < magic+1; i++)
Detab[offset].magic_offset[i] = magic_offset[i];
}
Detab[offset].magic_bytes = calloc(magic, sizeof(char));
for (i = 0; i < magic; i++)
Detab[offset].magic_bytes[i] = magic_bytes[i];
break;
default:
#ifdef _DEBUG
_debug(stderr, "ODFT '%s' BAD FUNCTION: %d\n", Detab[offset].objtype, Detab[offset].func_type);
#endif
error(MUNGED, "heuristics table function");
continue;
}
offset++;
}
fclose(fp);
Detab[offset].objtype[0] = '\0';
if (tmpstr)
free(tmpstr);
}
return(0);
}
void
strshift(int offset, char *str, const int count)
{
memshift(offset, str, count, sizeof(char));
}
