Trustonic TEE打印二进制

1、将如下代码移植到你的c文件

#define EMSG(fmt, args...) TEE_LogPrintf("aes_demo "fmt"\n", ##args)

#include 
#include 
char *strcat(char *dest, const char *src)
{
    char *tmp = dest;

    while (*dest)
        dest++;
    while ((*dest++ = *src++) != '\0');
    return tmp;
}

static void i_to_string(char *buf, char x)
{
        char shiwei = x /16;
        char gewei = x %16;

        buf[0] = ' ';
        buf[1] = shiwei >= 10 ? (shiwei - 10 + 'a') : (shiwei + '0');
        buf[2] = gewei >= 10 ? (gewei - 10 + 'a') : (gewei + '0');
        buf[3] = 0;
}
#define PRINT_BUF_MAX                        (32)
#define TAG_STRING_MAX                        (32)
static void print_step_hex_data(void *tag, void *pbuf, uint32_t len)
{
        int i;
        char buf[PRINT_BUF_MAX*4 + TAG_STRING_MAX] = {0};
        char temp_buf[4] = "HHH";

        memcpy(buf, (char *)tag, sizeof(buf));

        for (i=0;i<len;i++) {
                if (i % 16 ==0) {
                        strcat(buf,"\n");
                }
                i_to_string(temp_buf, *((char *)pbuf + i)&0xff);
                strcat(buf, temp_buf);
        }
        strcat(buf,"\n");

        EMSG("%s", buf);
}

void print_hex_data(void *tag, void *pbuf, uint32_t len)
{
        int i;
        uint32_t block;
        uint32_t remainder;
        void *p;
        char tag_buf[TAG_STRING_MAX + 6] = {0};
        char tail_buf[6+4] = {0};

        p = pbuf;
        if (len<=PRINT_BUF_MAX) {
                memcpy(tag_buf,tag,TAG_STRING_MAX);
                strcat(tag_buf, " = ");
                return print_step_hex_data(tag_buf, p, len);
        } else {
                block = len / PRINT_BUF_MAX;
                remainder = len % PRINT_BUF_MAX;
                for (i=0;i<block;i++) {
                        memcpy(tag_buf,tag,TAG_STRING_MAX);
                        tail_buf[0] = '[';
                        tail_buf[1] = i / 10 + '0';
                        tail_buf[2] = i % 10 + '0';
                        tail_buf[3] = ']';
                        tail_buf[4] = 0;
                        strcat(tag_buf, tail_buf);
                        print_step_hex_data(tag_buf, p, PRINT_BUF_MAX);
                        p = (char *)p + PRINT_BUF_MAX;
                }
                if (remainder) {
                        memcpy(tag_buf,tag,TAG_STRING_MAX);
                        tail_buf[0] = '[';
                        tail_buf[1] = i / 10 + '0';
                        tail_buf[2] = i % 10 + '0';
                        tail_buf[3] = ']';
                        tail_buf[4] = 0;
                        strcat(tag_buf, tail_buf);
                        print_step_hex_data(tag_buf, p, remainder);
                }
        }
}

2、 打印二进制的方法如下所示
print_hex_data("Cipher Data : ", tmp_buf, tmp_sz);
print_hex_data("Plaintext Data : ", out_buf, out_sz);