DosBox и создание субдиректорий

$ ./run.sh
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#!/bin/bash

echo "------------------------"
cat run.sh
echo "------------------------"
cat mkdir.c
echo "------------------------"
gcc -shared --PIC mkdir.c -o mkdir.so
echo "------------------------"
LD_PRELOAD=./mkdir.so dosbox

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#define _GNU_SOURCE

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include <dlfcn.h>

typedef int (*type_mkdir)(const char *pathname, mode_t mode);
static type_mkdir ptr_mkdir = 0;
void __attribute__((constructor)) my_init(void)
{
  ptr_mkdir = dlsym(RTLD_NEXT, "mkdir");
}

int mkdir(const char *pathname, mode_t mode)
{
  char *ptr, *buf = malloc(strlen(pathname));
  if(buf==0) return -1;

  memcpy(buf,pathname,strlen(pathname));
  if(buf[0]!=0)
    for(ptr=buf+1;*ptr!=0;++ptr)
      if(*ptr=='/')
      {
        *ptr=0;
        if(ptr_mkdir(buf, mode)!=0&&errno!=EEXIST)
          break;
        *ptr='/';
      }
  free(buf);
  return ptr_mkdir(pathname, mode);
}
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DOSBox version 0.74
Copyright 2002-2010 DOSBox Team, published under GNU GPL.
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