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#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <rune.h>
#include <stdlib.h>
_RuneLocale *
_Read_RuneMagi(fp)
FILE *fp;
{
char *data;
void *lastp;
_RuneLocale *rl;
_RuneEntry *rr;
struct stat sb;
int x;
if (fstat(fileno(fp), &sb) < 0)
return(0);
if (sb.st_size < sizeof(_RuneLocale))
return(0);
if ((data = malloc(sb.st_size)) == NULL)
return(0);
rewind(fp); /* Someone might have read the magic number once already */
if (fread(data, sb.st_size, 1, fp) != 1) {
free(data);
return(0);
}
rl = (_RuneLocale *)data;
lastp = data + sb.st_size;
rl->variable = rl + 1;
if (memcmp(rl->magic, _RUNE_MAGIC_1, sizeof(rl->magic))) {
free(data);
return(0);
}
rl->invalid_rune = ntohl(rl->invalid_rune);
rl->variable_len = ntohl(rl->variable_len);
rl->runetype_ext.nranges = ntohl(rl->runetype_ext.nranges);
rl->maplower_ext.nranges = ntohl(rl->maplower_ext.nranges);
rl->mapupper_ext.nranges = ntohl(rl->mapupper_ext.nranges);
for (x = 0; x < _CACHED_RUNES; ++x) {
rl->runetype[x] = ntohl(rl->runetype[x]);
rl->maplower[x] = ntohl(rl->maplower[x]);
rl->mapupper[x] = ntohl(rl->mapupper[x]);
}
rl->runetype_ext.ranges = (_RuneEntry *)rl->variable;
rl->variable = rl->runetype_ext.ranges + rl->runetype_ext.nranges;
if (rl->variable > lastp) {
free(data);
return(0);
}
rl->maplower_ext.ranges = (_RuneEntry *)rl->variable;
rl->variable = rl->maplower_ext.ranges + rl->maplower_ext.nranges;
if (rl->variable > lastp) {
free(data);
return(0);
}
rl->mapupper_ext.ranges = (_RuneEntry *)rl->variable;
rl->variable = rl->mapupper_ext.ranges + rl->mapupper_ext.nranges;
if (rl->variable > lastp) {
free(data);
return(0);
}
for (x = 0; x < rl->runetype_ext.nranges; ++x) {
rr = rl->runetype_ext.ranges;
rr[x].min = ntohl(rr[x].min);
rr[x].max = ntohl(rr[x].max);
if ((rr[x].map = ntohl(rr[x].map)) == 0) {
int len = rr[x].max - rr[x].min + 1;
rr[x].types = rl->variable;
rl->variable = rr[x].types + len;
if (rl->variable > lastp) {
free(data);
return(0);
}
while (len-- > 0)
rr[x].types[len] = ntohl(rr[x].types[len]);
} else
rr[x].types = 0;
}
for (x = 0; x < rl->maplower_ext.nranges; ++x) {
rr = rl->maplower_ext.ranges;
rr[x].min = ntohl(rr[x].min);
rr[x].max = ntohl(rr[x].max);
rr[x].map = ntohl(rr[x].map);
}
for (x = 0; x < rl->mapupper_ext.nranges; ++x) {
rr = rl->mapupper_ext.ranges;
rr[x].min = ntohl(rr[x].min);
rr[x].max = ntohl(rr[x].max);
rr[x].map = ntohl(rr[x].map);
}
if (((char *)rl->variable) + rl->variable_len > (char *)lastp) {
free(data);
return(0);
}
/*
* Go out and zero pointers that should be zero.
*/
if (!rl->variable_len)
rl->variable = 0;
if (!rl->runetype_ext.nranges)
rl->runetype_ext.ranges = 0;
if (!rl->maplower_ext.nranges)
rl->maplower_ext.ranges = 0;
if (!rl->mapupper_ext.nranges)
rl->mapupper_ext.ranges = 0;
return(rl);
}
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