src/stdio/__fmodeflags.c

   1 #include <fcntl.h>
   2 #include <string.h>
   3
   4 int __fmodeflags(const char *mode)
   5 {
   6         int flags;
   7         if (strchr(mode, '+')) flags = O_RDWR;
   8         else if (*mode == 'r') flags = O_RDONLY;
   9         else flags = O_WRONLY;
  10         if (strchr(mode, 'x')) flags |= O_EXCL;
  11         if (strchr(mode, 'e')) flags |= O_CLOEXEC;
  12         if (*mode != 'r') flags |= O_CREAT;
  13         if (*mode == 'w') flags |= O_TRUNC;
  14         if (*mode == 'a') flags |= O_APPEND;
  15         return flags;
  16 }