Translate big endian C to perl on x86 of binary file into structure

[sg]

The following code is meant for a Big-endian processor running linux. The code reads binary files and assigns values to C-structures. The same data files need to be read in perl in Windows on little endian x86. Any tips on doing the translation?

    typedef struct s_str_boo
    {
        unsigned short  type;  
        int   x;       
        int   y;       
        int   w;       
        int   h;             
        int   v2;      
        unsigned short  s1; 
        unsigned short  s2;  
    } str_boo;
    
    typedef struct s_str_foo 
    {
        unsigned int       aui;
        str_boo            boo[16];
        unsigned short     aus;
        struct s_str_foo  *next;
    } str_foo;
    

    file = fopen("foo.dat", "r+b");

    fread((void*)&an_uint, sizeof(char), sizeof(unsigned int), file);
    fread((void*)tmpfoo,   sizeof(char), sizeof(str_foo), file);

[ikegami]

Convert::Binary::C might be useful. It'll help with not just your endianess issues, but your alignment issues.

[renodino]

See pack and unpack, esp. the N/n vs. V/v format specifiers. However, if you need to unpack floats, I fear you'll need to get out the IEEE spec and swizzle your own bytes.