int dico_add_u64(cdico *d, u8 section, u16 key, u64 data)
{
u64 ledata;
assert (d);
ledata=cpu_to_le64(data);
return dico_add_generic(d, section, key, &ledata, sizeof(ledata), DICTYPE_U64);
}
int dico_add_u32(cdico *d, u8 section, u16 key, u32 data)
{
u32 ledata;
assert(d);
ledata=cpu_to_le32(data);
return dico_add_generic(d, section, key, &ledata, sizeof(ledata), DICTYPE_U32);
}
int dico_add_u16(cdico *d, u8 section, u16 key, u16 data)
{
u16 ledata;
assert(d);
ledata=cpu_to_le16(data);
return dico_add_generic(d, section, key, &ledata, sizeof(ledata), DICTYPE_U16);
}
int dico_add_string(cdico *d, u8 section, u16 key, const char *szstring)
{
u16 len;
assert(d);
assert(szstring);
len=strlen(szstring);
return dico_add_generic(d, section, key, szstring, len+1, DICTYPE_STRING);
}
int dico_add_data(cdico *d, u8 section, u16 key, const void *data, u16 size)
{
return dico_add_generic(d, section, key, data, size, DICTYPE_DATA);
}
int archreader_read_dico(carchreader *ai, cdico *d)
{
u16 size;
u32 headerlen;
u32 origsum;
u32 newsum;
u8 *buffer;
u8 *bufpos;
u16 temp16;
u32 temp32;
u8 section;
u16 count;
u8 type;
u16 key;
int i;
assert(ai);
assert(d);
// header-len, header-data, header-checksum
switch (ai->filefmtver)
{
case 1:
if (archreader_read_data(ai, &temp16, sizeof(temp16))!=0)
{ errprintf("imgdisk_read_data() failed\n");
return OLDERR_FATAL;
}
headerlen=le16_to_cpu(temp16);
break;
case 2:
if (archreader_read_data(ai, &temp32, sizeof(temp32))!=0)
{ errprintf("imgdisk_read_data() failed\n");
return OLDERR_FATAL;
}
headerlen=le32_to_cpu(temp32);
break;
default:
errprintf("Fatal error: invalid file format version: ai->filefmtver=%d\n", ai->filefmtver);
return OLDERR_FATAL;
}
bufpos=buffer=malloc(headerlen);
if (!buffer)
{ errprintf("cannot allocate memory for header\n");
return FSAERR_ENOMEM;
}
if (archreader_read_data(ai, buffer, headerlen)!=0)
{ errprintf("cannot read header data\n");
free(buffer);
return OLDERR_FATAL;
}
if (archreader_read_data(ai, &temp32, sizeof(temp32))!=0)
{ errprintf("cannot read header checksum\n");
free(buffer);
return OLDERR_FATAL;
}
origsum=le32_to_cpu(temp32);
// check header-data integrity using checksum
newsum=fletcher32(buffer, headerlen);
if (newsum!=origsum)
{ errprintf("bad checksum for header\n");
free(buffer);
return OLDERR_MINOR; // header corrupt --> skip file
}
// read count from buffer
memcpy(&temp16, bufpos, sizeof(temp16));
bufpos+=sizeof(temp16);
count=le16_to_cpu(temp16);
// read items
for (i=0; i < count; i++)
{
// a. read type from buffer
memcpy(&type, bufpos, sizeof(type));
bufpos+=sizeof(section);
// b. read section from buffer
memcpy(§ion, bufpos, sizeof(section));
bufpos+=sizeof(section);
// c. read key from buffer
memcpy(&temp16, bufpos, sizeof(temp16));
bufpos+=sizeof(temp16);
key=le16_to_cpu(temp16);
// d. read sizeof(data)
memcpy(&temp16, bufpos, sizeof(temp16));
bufpos+=sizeof(temp16);
size=le16_to_cpu(temp16);
// e. add item to dico
if (dico_add_generic(d, section, key, bufpos, size, type)!=0)
return OLDERR_FATAL;
bufpos+=size;
}
free(buffer);
return FSAERR_SUCCESS;
}
