C++求助 字符串遇到 0x00
小弟有一段unsigned char代码172,237,5,51,0,172,237,5,51,172,237,5,51,172,237,0,0,5,51,172,237,5,51...(非常长)需要BASE64编码 在编码中发现unsigned char中只要当前char是0就会停住退出 寻求帮助,如何才能把0也给编码
运行结果
rO0FMxY= //{172,237,5,51}
rO0FMw== //{172,237,5,51,0}
rO0FMw== //{172,237,5,51,0,172,237,5,51,172,237,5,51,172,237,5,51,172,237,5,51} 后面的全部不编码了
现遇到困难 遇到0就被截断 寻求老师傅指教
程序代码：#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <string.h>
using namespace std;
// 全局常量定义
const char* base64char = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const char padding_char = '=';
/*编码代码
* const unsigned char * sourcedata， 源数组
* char * base64 ，码字保存
*/
int base64_encode(const unsigned char* sourcedata, char* base64)
{
int i = 0, j = 0;
unsigned char trans_index = 0; // 索引是8位，但是高两位都为0
const int datalength = strlen((const char*)sourcedata);
for (; i < datalength; i += 3) {
// 每三个一组，进行编码
// 要编码的数字的第一个
trans_index = ((sourcedata[i] >> 2) & 0x3f);
base64[j++] = base64char[(int)trans_index];
// 第二个
trans_index = ((sourcedata[i] << 4) & 0x30);
if (i + 1 < datalength) {
trans_index |= ((sourcedata[i + 1] >> 4) & 0x0f);
base64[j++] = base64char[(int)trans_index];
}
else {
base64[j++] = base64char[(int)trans_index];
base64[j++] = padding_char;
base64[j++] = padding_char;
break; // 超出总长度，可以直接break
}
// 第三个
trans_index = ((sourcedata[i + 1] << 2) & 0x3c);
if (i + 2 < datalength) { // 有的话需要编码2个
trans_index |= ((sourcedata[i + 2] >> 6) & 0x03);
base64[j++] = base64char[(int)trans_index];
trans_index = sourcedata[i + 2] & 0x3f;
base64[j++] = base64char[(int)trans_index];
}
else {
base64[j++] = base64char[(int)trans_index];
base64[j++] = padding_char;
break;
}
}
base64[j] = '\0';
return 0;
}
int main() {
//unsigned char no0in[] = {172,237,5,51};
unsigned char n0[] = {172,237,5,51};
char n0o[1024];
base64_encode(n0,n0o);
printf("%s\n",n0o);
unsigned char n0in[] = {172,237,5,51,0};
char n0out[1024];
base64_encode(n0in,n0out);
printf("%s\n",n0out);
unsigned char y0in[] = {172,237,5,51,0,172,237,5,51,172,237,5,51,172,237,5,51,172,237,5,51};
char y0out[1024];
base64_encode(y0in,y0out);
printf("%s\n",y0out);
}
