Opens the /etc/protocols file and sets the file marker.
Standard C Library (libc.a)
#include <netdb.h>
void setprotoent (StayOpen)
int StayOpen;
The setprotoent subroutine is threadsafe in AIX® 4.3 and later. However, the return value points to static data that is overwritten by subsequent calls. This data must be copied to be saved for use by subsequent calls.
The setprotoent subroutine opens the /etc/protocols file and sets the file marker to the beginning of the file.
All applications containing the setprotoent subroutine must be compiled with the _BSD macro set to a specific value. Acceptable values are 43 and 44. In addition, all socket applications must include the BSD libbsd.a library.
| Item | Description |
|---|---|
| StayOpen | Indicates when to close the /etc/protocols file. Specifying a value of 0 closes the file after each call to getprotoent. Specifying a nonzero value allows the /etc/protocols file to remain open after each subroutine. |
The return value points to static data that is overwritten by subsequent calls.
| Item | Description |
|---|---|
| /etc/protocols | Contains the protocol names. |