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Fix the order of LFN entries

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This commit is contained in:
Baptiste Wicht 2013-12-27 21:48:12 +01:00
parent 17947390fb
commit a900f42a2c
1 changed files with 16 additions and 13 deletions
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29
kernel/src/fat32.cpp
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@ -533,11 +533,21 @@ cluster_entry* init_entry(cluster_entry* entry_ptr, const char* name, uint32_t c
//If necessary create all the long filename entries
if(Long){
auto len = std::str_len(name);
//Compute the checksum of 8.3 Entry
char sum = 0;
for(int c = 0; c < 11; ++c){
char v = c < len ? name[c] : ' ';
sum = ((sum & 1) ? 0x80 : 0) + (sum >> 1) + v;
}
size_t sequences = (len - 1) / 13 + 1;
size_t sequence = 0;
size_t i = 0;
while(sequence < sequences){
size_t sequence = sequences;
do {
--sequence;
auto& l_entry = reinterpret_cast<long_entry&>(*entry_ptr);
if(sequence == sequences - 1){
@ -549,16 +559,10 @@ cluster_entry* init_entry(cluster_entry* entry_ptr, const char* name, uint32_t c
l_entry.attrib = 0x0F;
l_entry.reserved = 0x0;
l_entry.starting_cluster = 0x0;
char sum = 0;
for(int c = 0; c < 11; ++c){
char v = c < len ? name[c] : ' ';
sum = ((sum & 1) ? 0x80 : 0) + (sum >> 1) + v;
}
l_entry.alias_checksum = sum;
size_t i = sequence * 13;
bool null = false;
for(size_t j = 0; j < 5; ++j){
@ -589,8 +593,7 @@ cluster_entry* init_entry(cluster_entry* entry_ptr, const char* name, uint32_t c
}
++entry_ptr;
++sequence;
}
} while (sequence != 0);
}
auto& entry = *entry_ptr;