使用fread()读取二进制文件内容

Question

我想使用 fread 读取二进制文件的一段。二进制内容为 0xf3 0xf 0x1e 0xfa...

但我从 fread() 0xfffffff3 0xf 读取并输出...我想知道为什么0xf3 变为 0xfffffff3 0xf 0x1e 0xfffffffa...

我的实现代码如下：

    char movslq_inst[length];

    /* Open the target_binary */
    
    FILE * target_binary = fopen(target_path,"rb+");

    /* Jump to target address */
    if (fseek(target_binary, offset, SEEK_SET) != 0)
    {  
        printf("Unable to seek file '%s' at offset '%i", target_path, offset);
        exit(0);
    }

    /* Read the target bytes */
    if (fread(movslq_inst, length, 1, target_binary) != 1)
    { 
        printf("Unable to read file '%s'", target_path);
        exit(0);
    }

    /* test examine */
    printf("read content: \n");
    for(int i = 0; i < length; i++)
    {
        printf("0x%x ",movslq_inst[i]);
    }
    printf("\n");

Answer 1

我解决了。它应该是 unsigned char movslq_inst[length]; 而不是

char movslq_inst[length];。