raeofsunshine
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KimisOS
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Some progress ig

This commit is contained in:
notsomeidiot123 2025-03-17 00:07:37 -04:00
parent 1c5799cc50
commit d8baba1c3b
1 changed files with 21 additions and 7 deletions
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28
tools/diskwrite.c
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@ -127,7 +127,7 @@ void write_cluster_value(fat_info *info, uint32_t value, uint32_t cluster){
}
}
//read size bytes into buffer. If file is null, will read from root directory.
int read_file(fat_info *info, file_t *file, buffer_t *buffer, size_t size, FILE *disk){
int read_file(fat_info *info, file_t *file, buffer_t buffer, size_t size, FILE *disk){
if(!file){
file_t root_file = {0};
root_file.start_cluster_high = info->bpb.root_dir_cluster>>16;
@ -142,15 +142,15 @@ int read_file(fat_info *info, file_t *file, buffer_t *buffer, size_t size, FILE
if(cluster = -1){
return i * info->bpb.bytes_per_sector * info->bpb.sectors_per_cluster;
}
printf("Reading cluster: %d", cluster);
printf("Reading cluster: %d\n", cluster);
read_sector(disk, info->bpb.reserved_sectors + info->bpb.partition_start + (cluster * info->bpb.sectors_per_cluster), info->bpb.sectors_per_cluster, buffer + (i *info->bpb.bytes_per_sector * info->bpb.sectors_per_cluster));
cluster = info->file_table[cluster];
verbose && printf("Next cluster: %d", cluster);
verbose && printf("Next cluster: %d\n", cluster);
}
}
//write size bytes to file from buffer. no value may be zero or null. If file is null, will write to root directory
int write_file(fat_info *info, file_t *file, buffer_t *buffer, size_t size, FILE *disk){
int write_file(fat_info *info, file_t *file, buffer_t buffer, size_t size, FILE *disk){
if(!file){
file_t root_file = {0};
root_file.start_cluster_high = info->bpb.root_dir_cluster>>16;
@ -175,8 +175,22 @@ int write_file(fat_info *info, file_t *file, buffer_t *buffer, size_t size, FILE
return size * info->bpb.bytes_per_sector * info->bpb.sectors_per_cluster;
}
int create_file(char *path, fat_info *info, FILE *file){
file_t *file_desc_buffer = calloc(info->bpb.root_dir_entries, sizeof(file_t));
int create_file(char *path, fat_info *info, FILE *file, FILE *disk){
file_t *root_files = calloc(info->bpb.root_dir_entries, sizeof(file_t));
read_file(info, 0, (buffer_t)root_files, (uint32_t)-1, disk);
uint32_t index = 0;
while(root_files[index].filename[0]) index++;
verbose && printf("Creating file at index: %d\n", index);
char *ext = strchr(path, '.');
char *tmpptr = path;
int nidx = 0;
while(tmpptr < ext){
root_files[index].filename[nidx++] = *(tmpptr++);
}
for(int i = 1; i < 4 && ext[i]; i++){
root_files[index].ext[i-1] = ext[i];
}
}
int fat_write_back(FILE *file, fat_info *info){
@ -246,7 +260,7 @@ int main(int argc, char **argv){
detect_repair_fs(output_file, &info);
for(int i = 0; i < filec; i++){
printf("\033[1;34mWriting file %d in list: %s\033[0m\n", i, files[i]);
create_file(files[i], &info, output_file);
create_file(files[i], &info, output_file, output_file);
}
fat_write_back(output_file, &info);
verbose && printf("Finished. Exiting...\n");