有没有办法直接将golang字符串复制到预先分配的C字符缓冲区

package main

/*
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void copyString(char* buffer, const char* str) {
    strcpy(buffer, str);
}

void freeBuffer(char* buffer) {
    free(buffer);
}
*/
import "C"
import "unsafe"

func main() {
    goStr := "Hello, World!"
    cStr := C.CString(goStr)

    bufferSize := C.strlen(cStr) + 1
    buffer := (*C.char)(C.malloc(C.size_t(bufferSize)))
    defer C.freeBuffer(buffer)

    C.copyString(buffer, cStr)

    // 使用复制后的C字符串进行操作
    fmt.Println(C.GoString(buffer))
}