thodg/libgit2/src/win32/posix.h

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• Hash : 2fc78e70
  Author :
  Date : 2011-07-08T23:01:37
  

  posix: Portable `vsnprintf` Our good, lovely folks at Microsoft decided that there was no good reason to make `vsnprintf` compilant with the C standard, so that function in Windows returns -1 on overflow, instead of returning the actual byte count needed to write the full string. We now handle this situation more gracefully with the POSIX compatibility layer, by returning the needed byte size using an auxiliary method instead of blindly resizing the target buffer until it fits. This means we can now support `printf`s of any size by allocating a temporary buffer. That's good.

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• src/win32/posix.h

• #ifndef INCLUDE_posix__w32_h__
  #define INCLUDE_posix__w32_h__
  
  #include "common.h"
  #include "fnmatch.h"
  
  GIT_INLINE(int) p_link(const char *GIT_UNUSED(old), const char *GIT_UNUSED(new))
  {
  	GIT_UNUSED_ARG(old)
  	GIT_UNUSED_ARG(new)
  	errno = ENOSYS;
  	return -1;
  }
  
  GIT_INLINE(int) p_mkdir(const char *path, int GIT_UNUSED(mode))
  {
  	GIT_UNUSED_ARG(mode)
  	return mkdir(path);
  }
  
  extern int p_unlink(const char *path);
  extern int p_lstat(const char *file_name, struct stat *buf);
  extern int p_readlink(const char *link, char *target, size_t target_len);
  extern int p_hide_directory__w32(const char *path);
  extern char *p_realpath(const char *orig_path, char *buffer);
  extern int p_vsnprintf(char *buffer, size_t count, const char *format, va_list argptr);
  
  #endif
  

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