compat-cygwin.c

   1 /*
   2  * Cygwin Compatibility functions
   3  *
   4  *
   5  *  Licensed under the Open Software License version 1.1
   6  */
   7
   8
   9
  10 #include <sys/mman.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <sys/stat.h>
  14
  15 #include "lib.h"
  16 #include "token.h"
  17
  18 void *blob_alloc(unsigned long size)
  19 {
  20         void *ptr;
  21         size = (size + 4095) & ~4095;
  22         ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  23         if (ptr == MAP_FAILED)
  24                 ptr = NULL;
  25         else
  26                 memset(ptr, 0, size);
  27         return ptr;
  28 }
  29
  30 void blob_free(void *addr, unsigned long size)
  31 {
  32         size = (size + 4095) & ~4095;
  33         munmap(addr, size);
  34 }
  35
  36 long double string_to_ld(const char *nptr, char **endptr)
  37 {
  38         return strtod(nptr, endptr);
  39 }
  40
  41 int identical_files(struct stream* s, struct stat *st, const char * name)
  42 {
  43         return (s->dev == st->st_dev && s->ino == st->st_ino);
  44 }