setservent()

Updated: April 19, 2023

Open the network services database file

Synopsis:

#include <netdb.h>

void setservent( int stayopen );

Arguments:

stayopen
Nonzero if you don't want the database to be closed after each call to getservbyname() or getservbyport().

Library:

libsocket

Use the -l socket option to qcc to link against this library.

Description:

The setservent() function opens and rewinds the network services database file. If the stayopen flag is nonzero, the network services database won't be closed after each call to getservbyname() or getservbyport().

Files:

/etc/services
Network services database file.

Classification:

POSIX 1003.1

Safety:  
Cancellation point Yes
Interrupt handler No
Signal handler No
Thread No

Caveats:

This function uses static data; if you need the data for future use, you should copy it before any subsequent calls overwrite it.