diff options
Diffstat (limited to 'nuttx/include/sys/un.h')
| -rw-r--r-- | nuttx/include/sys/un.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/nuttx/include/sys/un.h b/nuttx/include/sys/un.h index a9eb1cd30..eb431780c 100644 --- a/nuttx/include/sys/un.h +++ b/nuttx/include/sys/un.h @@ -74,6 +74,17 @@ struct sockaddr_un char sun_path[UNIX_PATH_MAX]; /* pathname */ }; +/* There are three types of addresses: + * + * 1. pathname: sun_path holds a null terminated string. The allocated + * size may be variable: sizeof(sa_family_t) + strlen(pathname) + 1 + * 2. unnamed: A unix socket that is not bound to any name. This case + * there is no path. The allocated size may be sizeof(sa_family_t) + * 3. abstract. The abstract path is destinguished because the pathname + * consists of only the NUL terminator. The allocated size is then + * sizeof(s_family_t) + 1. + */ + /**************************************************************************** * Public Function Prototypes ****************************************************************************/ |