我用
size_t iconv(iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
将UTF-16BE转换为GB2312。
inbytesleft
是要转换的字节数。转换后,inbytesleft
是未转换的字节数。一个电话后,我发现
inbytesleft
是-2,根据iconv man page,此函数最多应读取inbytesleft
。谁能告诉我原因以及解决方法?
要转换的代码是
"保单验证"
谢谢
最佳答案
您如何将输入数据输入程序?
我已经使用此代码测试了这种情况,它似乎可以工作:
#include <stdio.h>
#include <iconv.h>
#include <errno.h>
int main(){
char data[10] = {0x4f,0xdd,0x53,0x55,0x9a,0x8c,0x8b,0xc1, 0, 0};
char outdata[20];
char *dataptr;
char *outdataptr;
iconv_t cd;
size_t result;
size_t inbytesleft = 8;
size_t outbytesleft = 20;
int i;
cd = iconv_open("GB2312", "UTF-16BE");
dataptr = data;
outdataptr = outdata;
result = iconv(cd, &dataptr, &inbytesleft, &outdataptr, &outbytesleft);
if(result == -1)
printf("Error: %d\n", errno);
printf(" result: %zd\n", result);
printf(" inbytesleft: %zd\n", inbytesleft);
printf("outbytesleft: %zd\n", outbytesleft);
for(i = 20; i > outbytesleft; i--){
if(i != 20)
printf(",");
printf("0x%02x", *((unsigned char *)&(outdata[20-i])));
}
printf("\n");
return 0;
}
它打印
result: 0
inbytesleft: 0
outbytesleft: 12
0xb1,0xa3,0xb5,0xa5,0xd1,0xe9,0xd6,0xa4
这似乎是正确的。
变量数据中的项目数组是
保单验证
的UTF-16BE编码如果这样做没有帮助,您可以发布代码进行分析吗?