__crypt__sha256_process_block
__crypt__sha256_process_block (ctx->buffer, bytes + pad + 8, ctx);
__crypt__sha256_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
__crypt__sha256_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
__crypt__sha256_process_block (buffer, len & ~63, ctx);
__crypt__sha256_process_block (ctx->buffer, 64, ctx);
void __crypt__sha256_process_block (const void *buffer, size_t len,