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#+build !freestanding
package crypto_hash
import "core:io"
import "core:os"
// hash_file will read the file provided by the given handle and return the
// computed digest in a newly allocated slice.
hash_file :: proc(
algorithm: Algorithm,
hd: os.Handle,
load_at_once := false,
allocator := context.allocator,
) -> (
[]byte,
io.Error,
) {
if !load_at_once {
return hash_stream(algorithm, os.stream_from_handle(hd), allocator)
}
buf, ok := os.read_entire_file(hd, allocator)
if !ok {
return nil, io.Error.Unknown
}
defer delete(buf, allocator)
return hash_bytes(algorithm, buf, allocator), io.Error.None
}
hash :: proc {
hash_stream,
hash_file,
hash_bytes,
hash_string,
hash_bytes_to_buffer,
hash_string_to_buffer,
}
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