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/* Failed on powerpc64-linux with a segfault due to ifcvt generating

   conditional returns without updating dominance info.

   Extracted from glibc's dl-load.c.  */

typedef __SIZE_TYPE__ size_t;

static size_t

is_dst (const char *start, const char *name, const char *str,

        int is_path, int secure)

{

  size_t len;

  _Bool is_curly = 0;

  if (name[0] == '{')

    {

      is_curly = 1;

      ++name;

    }

  len = 0;

  while (name[len] == str[len] && name[len] != '\0')

    ++len;

  if (is_curly)

    {

      if (name[len] != '}')

        return 0;

      --name;

      len += 2;

    }

  else if (name[len] != '\0' && name[len] != '/'

           && (!is_path || name[len] != ':'))

    return 0;

  if (__builtin_expect (secure, 0)

      && ((name[len] != '\0' && (!is_path || name[len] != ':'))

          || (name != start + 1 && (!is_path || name[-2] != ':'))))

    return 0;

  return len;

}