If the system is running NIS, continue with the commands given below; if the system is to run DNS without NIS, follow the steps given in appendix B for modifying the shared library before proceeding with the following steps.
% ar x /tmp/res/libresolv.a [be sure this path points to the new resolver library]
% rm __.SYMDEF [__ represents two underscores]
% rm mkstemp.o [duplicate module]
% ld -assert pure-text *.o
All object modules to be compiled in the new library should pass this test. If they do not, check that the appropriate CFLAGS have been used for the compilation and that ranlib has been run on the resolver library.
% cd ..
Compare the list of object modules in the file lorder-sparc with the object modules in the tmp subdirectory. If new modules exist in the directory that are not in lorder-sparc, they must be added to the end of the list. Then
% make libc.so
A new library, libc.so.x.y.z, will be created in the current directory. The version number, x.y.z, will be one greater than the last version created. This new library should be tested before it is installed on the system. Check for an existing LD_LIBRARY_PATH environmental variable:
% setenv
If LD_LIBRARY_PATH exists, save the contents so that it can be restored after the tests.
% setenv LD_LIBRARY_PATH `pwd`
This command sets the environmental variable, LD_LIBRARY_PATH, to point to the new library. Any network commands that use the shared library for name look-up (ping, ftp, telnet, and so on) can then be used to test the library. Once the functioning of the new library has been confirmed, it can be installed. The user must be logged in as root to install the library:
# cp libc.so.x.y.z /usr/lib
# ldconfig
# unsetenv LD_LIBRARY_PATH
If the environmental variable LD_LIBRARY_PATH had a previous value, restore it at this point.

COMPILING named

Modifying DNS Search Lists

search wr.usgs.gov usgs.gov gov

search wr.usgs.gov

% cd /usr/lib/shlib.etc
% mkdir tmp [create a new temp directory]
% cd tmp
% ar x ../libc_pic.a [extract object files from archive]
% rm __.SYMDEF [__ represents two underscores]
% mv rpc_dtablesize. rpc_dtablesize.o
% mv rpc_commondata. rpc_commondata.o
% mv xccs_multibyte. xccs_multibyte.o [file name corrections required by bug in archive program]
% ar x /usr/lib/libresolv.a

This library is the original resolver library. If a newer resolver library is used, see appendix A for instructions for creating the new resolver before continuing.

% rm __.SYMDEF [__ represents two underscores]
% ld-assertpure-text*.o [test object modules]
% rm gethostent.o [remove old host name resolver]
% rm strcasecmp.o [remove redundant module]
% cd ..

Edit the lorder-sparc file to remove the reference togethostent and to add references to new resolver modules. Apply the following patch to change lorder-sparc:

% diff -rc2 lorder-sparc.orig lorder-sparc

*** lorder-sparc.orig

--- lorder-sparc

***************

*** 150,154 ****

  getwd.o

  getnetgrent.o

! gethostent.o

  ypxdr.o

  ttyname.o

--- 150,161 ----

  getwd.o

  getnetgrent.o

! gethostnamadr.o

! sethostent.o

! res_query.o

! res_mkquery.o

! res_send.o

! res_debug.o

! res_comp.o

! res_init.o

  ypxdr.o

  ttyname.o

Change the lines

libc.so:

ld -assert pure-text `${OBJSORT} 

lorder-sparc tmp`

libc.so:

ld -assert pure-text `${OBJSORT} 

lorder-sparc tmp` -ldl

libcs5.so:

ld -assert pure-text `${OBJSORT} 

lorder-sparc tmp`

libcs5.so:

ld -assert pure-text `${OBJSORT} 

lorder-sparc tmp` -ldl

% make libc.so

A new library libc.so.x.y.z will be created in the current directory. The version number x.y.z will be one greater than the last version created. This new library should be tested before it is installed on the system. Check for an existing LD_LIBRARY_PATH environmental variable:

% setenv

If LD_LIBRARY_PATH exists, save the contents so that it can be restored after the tests.

% setenv LD_LIBRARY_PATH `pwd`

This command sets the environmental variable LD_LIBRARY_PATH to point to the new library. Any network commands that use the shared library for name look-up (ping, ftp, telnet, and so on) can then be used to test the library. Once the functioning of the new library has been confirmed, it can be installed. The user must be logged in as root to install the library:

# cp libc.so.x.y.z /usr/lib
# ldconfig
# unsetenv LD_LIBRARY_PATH

If the environmental variable LD_LIBRARY_PATH had a previous value, restore it at this point.

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