Andrew's git - gitweb.git/blob

   1/*
   2 *  The order of the following two lines is important.
   3 *
   4 *  FREAD_READS_DIRECTORIES is undefined before including git-compat-util.h
   5 *  to avoid the redefinition of fopen within git-compat-util.h. This is
   6 *  necessary since fopen is a macro on some platforms which may be set
   7 *  based on compiler options. For example, on AIX fopen is set to fopen64
   8 *  when _LARGE_FILES is defined. The previous technique of merely undefining
   9 *  fopen after including git-compat-util.h is inadequate in this case.
  10 */
  11#undef FREAD_READS_DIRECTORIES
  12#include "../git-compat-util.h"
  13
  14FILE *git_fopen(const char *path, const char *mode)
  15{
  16        FILE *fp;
  17        struct stat st;
  18
  19        if (mode[0] == 'w' || mode[0] == 'a')
  20                return fopen(path, mode);
  21
  22        if (!(fp = fopen(path, mode)))
  23                return NULL;
  24
  25        if (fstat(fileno(fp), &st)) {
  26                fclose(fp);
  27                return NULL;
  28        }
  29
  30        if (S_ISDIR(st.st_mode)) {
  31                fclose(fp);
  32                errno = EISDIR;
  33                return NULL;
  34        }
  35
  36        return fp;
  37}