setservent()--Open Service Database

 #include <netdb.h>

 void setservent(int stay_open)

The setservent() function is used to prepare for sequential access to the service database file. setservent() opens the file and repositions the file marker to the beginning of the file.

Parameters

stay_open

(Input) A value that indicates whether to leave the database file open after each getservbyname() and getservbyport(). A nonzero value results in the database file being left open.

Authorities

No authorization is required.

Usage Notes

1. System i^® Navigator or the following CL commands can be used to access the services database file:
   
   
   • WRKSRVTBLE (Work with Service Table Entries)
     
     
   • ADDSRVTBLE (Add Service Table Entry)
     
     
   • RMVSRVTBLE (Remove Service Table Entry)
   
   
2. Do not use the setservent() function in a multithreaded environment. See the multithread alternative setservent_r() function.
   
   
3. When you develop in C-based languages and an application is compiled with the _XOPEN_SOURCE macro defined to the value 520 or greater, the setservent() API is mapped to qso_setservent98().

Related Information

• _XOPEN_SOURCE--Using _XOPEN_SOURCE for the UNIX^® 98 compatible interface
  
  
• getservbyname()--Get Port Number for Service Name
  
  
• getservbyport()--Get Service Name for Port Number
  
  
• getservent()--Get Next Entry from Service Database
  
  
• endservent()--Close Service Database

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