void HexDump(char *buf,int len,int addr) {
int i,j,k;
char binstr[80];
for (i=0;i<len;i++) {
if (0==(i%16)) {
sprintf(binstr,"%08x -",i+addr);
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
} else if (15==(i%16)) {
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
sprintf(binstr,"%s ",binstr);
for (j=i-15;j<=i;j++) {
sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
}
printf("%s\n",binstr);
} else {
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
}
}
if (0!=(i%16)) {
k=16-(i%16);
for (j=0;j<k;j++) {
sprintf(binstr,"%s ",binstr);
}
sprintf(binstr,"%s ",binstr);
k=16-k;
for (j=i-k;j<i;j++) {
sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
}
printf("%s\n",binstr);
}
}
int main(void)
{
char buf[40] = "125a3ADC566742->->45!23afasdb2345~+asd";
HexDump(buf, strlen(buf), (int)buf);
return 0;
}
运行效果如下:
修改为不换行:
char* wswHexDump(char *buf,int len,char *ret_buf) {
char binstr[1024];
int i = 0;
if(len>sizeof(binstr)){
return "len is too long";
}
for (i=0;i<len;i++) {
if (0==(i%len)) {
sprintf(binstr,"%s","BufMemInfo:");
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
} else if ((len-1)==(i%len)) {
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
sprintf(ret_buf,"%s ",binstr);
} else {
sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
}
}
return ret_buf;
}
//下面是调用。
char test[]="1234567890abcDEFHIJK";
tmp[512]="";
printf("%s\n",wswHexDump(test,10,tmp));
printf("%s\n",wswHexDump(test,20,tmp));
printf("%s\n",wswHexDump(test,40,tmp));