Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

getrpcbynumber(3)


NAME

   getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent - get RPC
   entry

SYNOPSIS

   #include <netdb.h>

   struct rpcent *getrpcent(void);

   struct rpcent *getrpcbyname(const char *name);

   struct rpcent *getrpcbynumber(int number);

   void setrpcent(int stayopen);

   void endrpcent(void);

DESCRIPTION

   The getrpcent(), getrpcbyname(), and  getrpcbynumber()  functions  each
   return  a  pointer to an object with the following structure containing
   the broken-out fields of an entry in the RPC program number data base.

       struct rpcent {
           char  *r_name;     /* name of server for this RPC program */
           char **r_aliases;  /* alias list */
           long   r_number;   /* RPC program number */
       };

   The members of this structure are:

       r_name      The name of the server for this RPC program.

       r_aliases   A NULL-terminated list of alternate names for  the  RPC
                   program.

       r_number    The RPC program number for this service.

   The  getrpcent()  function  reads  the next entry from the database.  A
   connection is opened to the database if necessary.

   The setrpcent() function opens a connection to the database,  and  sets
   the  next  entry  to the first entry.  If stayopen is nonzero, then the
   connection to the database will not be closed between calls to  one  of
   the getrpc*() functions.

   The endrpcent() function closes the connection to the database.

   The  getrpcbyname()  and getrpcbynumber() functions sequentially search
   from the beginning of the file until a matching  RPC  program  name  or
   program number is found, or until end-of-file is encountered.

RETURN VALUE

   On  success, getrpcent(), getrpcbyname(), and getrpcbynumber() return a
   pointer to a statically allocated rpcent structure.  NULL  is  returned
   on EOF or error.

FILES

   /etc/rpc
          RPC program number database.

ATTRIBUTES

   For   an   explanation   of   the  terms  used  in  this  section,  see
   attributes(7).

   ┌─────────────────────────────┬───────────────┬────────────────┐
   │Interface                    │ Attribute     │ Value          │
   ├─────────────────────────────┼───────────────┼────────────────┤
   │getrpcent(), getrpcbyname(), │ Thread safety │ MT-Unsafe      │
   │getrpcbynumber()             │               │                │
   ├─────────────────────────────┼───────────────┼────────────────┤
   │setrpcent(), endrpcent()     │ Thread safety │ MT-Safe locale │
   └─────────────────────────────┴───────────────┴────────────────┘

CONFORMING TO

   Not in POSIX.1.  Present on the BSDs, Solaris, and many other systems.

BUGS

   All information is contained in a static area so it must be  copied  if
   it is to be saved.

SEE ALSO

   getrpcent_r(3), rpc(5), rpcinfo(8), ypserv(8)

COLOPHON

   This  page  is  part of release 4.09 of the Linux man-pages project.  A
   description of the project, information about reporting bugs,  and  the
   latest     version     of     this    page,    can    be    found    at
   https://www.kernel.org/doc/man-pages/.

                              2015-07-23                      GETRPCENT(3)



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner