/*

 *  The order of the following two lines is important.

 *

 *  SUPPRESS_FOPEN_REDEFINITION is defined before including git-compat-util.h

 *  to avoid the redefinition of fopen within git-compat-util.h. This is

 *  necessary since fopen is a macro on some platforms which may be set

 *  based on compiler options. For example, on AIX fopen is set to fopen64

 *  when _LARGE_FILES is defined. The previous technique of merely undefining

 *  fopen after including git-compat-util.h is inadequate in this case.

 */

#define SUPPRESS_FOPEN_REDEFINITION

#include "../git-compat-util.h"

FILE *git_fopen(const char *path, const char *mode)

{

  FILE *fp;

  struct stat st;

  if (mode[0] == 'w' || mode[0] == 'a')

    return fopen(path, mode);

  if (!(fp = fopen(path, mode)))

    return NULL;

  if (fstat(fileno(fp), &st)) {

    fclose(fp);

    return NULL;

  }

  if (S_ISDIR(st.st_mode)) {

    fclose(fp);

    errno = EISDIR;

    return NULL;

  }

  return fp;

}