Edit

Share via

PROTOENT structure (winsock2.h)

  • Article

The protoent structure contains the name and protocol numbers that correspond to a given protocol name. Applications must never attempt to modify this structure or to free any of its components. Furthermore, only one copy of this structure is allocated per thread, and therefore, the application should copy any information it needs before issuing any other Windows Sockets function calls.

Syntax

typedef struct protoent {
  char  *p_name;
  char  **p_aliases;
  short p_proto;
} PROTOENT, *PPROTOENT, *LPPROTOENT;

Members

p_name

Official name of the protocol.

p_aliases

Null-terminated array of alternate names.

p_proto

Protocol number, in host byte order.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header winsock2.h (include Winsock2.h)