util.c

   1 /* Misc util functions */
   2
   3 char const *cvs_id_util = "$Id: util.c,v 1.3 2004-09-02 04:18:07 fred_nerk Exp $";
   4
   5 #include "l2tpns.h"
   6
   7 #include <sys/socket.h>
   8 #include <netinet/in.h>
   9 #include <arpa/inet.h>
  10 #include <string.h>
  11 #include <sys/mman.h>
  12
  13 char *inet_toa(unsigned long addr)
  14 {
  15         struct in_addr in;
  16         memcpy(&in, &addr, sizeof(unsigned long));
  17         return inet_ntoa(in);
  18 }
  19
  20 void *shared_malloc(unsigned int size)
  21 {
  22         void * p;
  23         p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
  24
  25         if (p == MAP_FAILED)
  26                 p = NULL;
  27
  28         return p;
  29 }