Function envpath_init

libs/libc/misc/lib_envpath.c:85–124

 ****************************************************************************/

ENVPATH_HANDLE envpath_init(FAR const char *name)
{
  FAR struct envpath_s *envpath;
  FAR char *path;
  size_t size;

  /* Get the value of the PATH variable */

  path = getenv(name);
  if (!path)
    {
      /* getenv() will return a NULL value if the PATH variable does not
       * exist in the environment.
       */

      return NULL;
    }

  /* Allocate a container for the PATH variable contents */

  size = strlen(path) + 1;
  envpath = (FAR struct envpath_s *)
    lib_malloc(SIZEOF_ENVPATH_S(size));

  if (!envpath)
    {
      /* Ooops.. we are out of memory */

      return NULL;
    }

  /* Populate the container */

  strlcpy(envpath->path, path, size);
  envpath->next = envpath->path;

  /* And return the containing cast to an opaque handle */

  return envpath;
}

/****************************************************************************
 * Name: envpath_next