Memory dumping code snippet

dump_mem.c

/*                                                                                          
 * Dumps memory to stdout                                               
 */                                                                                         
void dump_mem(void *addr, size_t len) {                                                     
                                                                                            
    int i;                                                                                  
    unsigned char *p = addr;                                                                
                                                                                            
    for (i=0; i<len; i++) {                                                                 
        if (i % 16 == 0) {                                                                  
            printf("\n0x%x  ", p);                                                          
        }                                                                                   
        if (i % 4 == 0) {                                                                   
            printf(" ");                                                                    
        }                                                                                   
        printf("%.2x", *p & 0xff);                                                          
        p = p + 1;                                                                          
    }                                                                                       
    printf("\n");                                                                           
}