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Add ioctls for Unix domain sockets

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This commit is contained in:
Gregory Nutt 2015-01-24 11:57:06 -06:00
parent bf61008448
commit d7189558a6
2 changed files with 16 additions and 0 deletions
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5
include/nuttx/net/ioctl.h
View file

@ -169,6 +169,11 @@
#define SIOCGMIIREG _SIOC(0x004d) /* Get a MII register via MDIO */
#define SIOCSMIIREG _SIOC(0x004e) /* Set a MII register via MDIO */
/* Unix domain sockets ******************************************************/
#define SIOCINQ _SIOC(0x004f) /* Returns the amount of queued unread
* data in the receive */
/****************************************************************************
* Type Definitions
****************************************************************************/

11
include/sys/un.h
View file

@ -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
****************************************************************************/