int headerVerifyInfo(int il, int dl, const void * pev, void * iv, int negate)
{
entryInfo pe = (entryInfo) pev;
entryInfo info = iv;
int i;
for (i = 0; i < il; i++) {
info->tag = ntohl(pe[i].tag);
info->type = ntohl(pe[i].type);
info->offset = ntohl(pe[i].offset);
if (negate)
info->offset = -info->offset;
info->count = ntohl(pe[i].count);
if (hdrchkType(info->type))
return i;
if (hdrchkAlign(info->type, info->offset))
return i;
if (hdrchkRange(dl, info->offset))
return i;
if (hdrchkData(info->count))
return i;
}
return -1;
}
/** \ingroup header
* Swap int32_t and int16_t arrays within header region.
*
* If a header region tag is in the set to be swabbed, as the data for a
* a header region is located after all other tag data.
*
* @param entry header entry
* @param il no. of entries
* @param dl start no. bytes of data
* @param pe header physical entry pointer (swapped)
* @param dataStart header data start
* @param dataEnd header data end
* @param regionid region offset
* @param fast use offsets for data sizes if possible
* @return no. bytes of data in region, -1 on error
*/
static int regionSwab(indexEntry entry, int il, int dl,
entryInfo pe,
unsigned char * dataStart,
const unsigned char * dataEnd,
int regionid, int fast)
{
if ((entry != NULL && regionid >= 0) || (entry == NULL && regionid != 0))
return -1;
for (; il > 0; il--, pe++) {
struct indexEntry_s ie;
ie.info.tag = ntohl(pe->tag);
ie.info.type = ntohl(pe->type);
ie.info.count = ntohl(pe->count);
ie.info.offset = ntohl(pe->offset);
if (hdrchkType(ie.info.type))
return -1;
if (hdrchkData(ie.info.count))
return -1;
if (hdrchkData(ie.info.offset))
return -1;
if (hdrchkAlign(ie.info.type, ie.info.offset))
return -1;
ie.data = dataStart + ie.info.offset;
if (dataEnd && (unsigned char *)ie.data >= dataEnd)
return -1;
if (fast && il > 1) {
ie.length = ntohl(pe[1].offset) - ie.info.offset;
} else {
ie.length = dataLength(ie.info.type, ie.data, ie.info.count,
1, dataEnd);
}
if (ie.length < 0 || hdrchkData(ie.length))
return -1;
ie.rdlen = 0;
if (entry) {
ie.info.offset = regionid;
*entry = ie; /* structure assignment */
entry++;
}
/* Alignment */
dl += alignDiff(ie.info.type, dl);
/* Perform endian conversions */
switch (ntohl(pe->type)) {
case RPM_INT64_TYPE:
{ uint64_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htonll(*it);
}
} break;
case RPM_INT32_TYPE:
{ int32_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htonl(*it);
}
} break;
case RPM_INT16_TYPE:
{ int16_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htons(*it);
}
} break;
}
dl += ie.length;
}
return dl;
}
/** \ingroup header
* Swap int32_t and int16_t arrays within header region.
*
* If a header region tag is in the set to be swabbed, as the data for a
* a header region is located after all other tag data.
*
* @param entry header entry
* @param il no. of entries
* @param dl start no. bytes of data
* @param pe header physical entry pointer (swapped)
* @param dataStart header data start
* @param dataEnd header data end
* @param regionid region offset
* @return no. bytes of data in region, -1 on error
*/
static int regionSwab(indexEntry entry, int il, int dl,
entryInfo pe,
unsigned char * dataStart,
const unsigned char * dataEnd,
int regionid)
{
for (; il > 0; il--, pe++) {
struct indexEntry_s ie;
rpmTagType type;
ie.info.tag = ntohl(pe->tag);
ie.info.type = ntohl(pe->type);
ie.info.count = ntohl(pe->count);
ie.info.offset = ntohl(pe->offset);
if (hdrchkType(ie.info.type))
return -1;
if (hdrchkData(ie.info.count))
return -1;
if (hdrchkData(ie.info.offset))
return -1;
if (hdrchkAlign(ie.info.type, ie.info.offset))
return -1;
ie.data = dataStart + ie.info.offset;
if (dataEnd && (unsigned char *)ie.data >= dataEnd)
return -1;
ie.length = dataLength(ie.info.type, ie.data, ie.info.count, 1, dataEnd);
if (ie.length < 0 || hdrchkData(ie.length))
return -1;
ie.rdlen = 0;
if (entry) {
ie.info.offset = regionid;
*entry = ie; /* structure assignment */
entry++;
}
/* Alignment */
type = ie.info.type;
if (typeSizes[type] > 1) {
unsigned diff = typeSizes[type] - (dl % typeSizes[type]);
if (diff != typeSizes[type]) {
dl += diff;
}
}
/* Perform endian conversions */
switch (ntohl(pe->type)) {
case RPM_INT64_TYPE:
{ uint64_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htonll(*it);
}
} break;
case RPM_INT32_TYPE:
{ int32_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htonl(*it);
}
} break;
case RPM_INT16_TYPE:
{ int16_t * it = ie.data;
for (; ie.info.count > 0; ie.info.count--, it += 1) {
if (dataEnd && ((unsigned char *)it) >= dataEnd)
return -1;
*it = htons(*it);
}
} break;
}
dl += ie.length;
}
return dl;
}
