UDP Error Codes

Macros
#define	UDP_ERR_NOSUCH_SOCKET   (-1)
	Socket does not exist.
#define	UDP_ERR_NOTOPEN_TO_WRITE   (-2)
	Socket not open for write.
#define	UDP_ERR_NOTOPEN_TO_READ   (-3)
	Socket not open for read.

Detailed Description

These negative values are returned by UDP socket creation and operation functions to indicate specific error conditions. All successful operations return non-negative values (valid file descriptors >= 0 or byte counts >= 0).

Note

See detailed return code information, causes and solutions at:
Programmers Guide UDP Error Codes