Re: [Sshguard-users] help needed building sshguard to use ip filter on solaris 8

[Steve O. <oc...@nc...>]

On 3 Oct 2007 at 4:21, Mij wrote:

Date sent:      	Wed, 03 Oct 2007 04:21:07 +0200
From:           	Mij <mi...@bi...>
Subject:        	Re: [Sshguard-users] help needed building sshguard to use ip filter	on
	solaris 8
To:             	ssh...@li...
Send reply to:  	ssh...@li...

> 
> On 02/ott/07, at 21:48, Steve Ochani wrote:
> 
> > Hi,
> >
> > That worked but now I'm getting linker errors.
> >
> > gcc  -I. -O2   -o sshguard  sshguard.o sshguard_whitelist.o  
> > sshguard_log.o
> > sshguard_procauth.o simclist.o attack_parser.o attack_scanner.o 
> > fwalls/libfwall.a -lpthread Undefined                       first
> > referenced
> >  symbol                             in file
> > _Exit                               sshguard_procauth.o
> > gethostbyname2                      attack_parser.o
> > unsetenv                            fwalls/libfwall.a(command.o)
> > gethostbyname                       sshguard_whitelist.o setenv     
> >                         fwalls/libfwall.a(command.o) hstrerror      
> >                     attack_parser.o inet_pton                       
> >    sshguard_whitelist.o inet_ntop                          
> > attack_parser.o h_errno                             attack_parser.o
> > ld: fatal: Symbol referencing errors. No output written to sshguard
> > collect2: ld returned 1 exit status make[3]: *** [sshguard] Error 1
> > make[3]: Leaving directory `/export/home/steve/ipf/
> > sshguard-1.1beta3/sshguard-1.1beta3/src' make[2]: ***
> > [all-recursive] Error 1 make[2]: Leaving directory
> > `/export/home/steve/ipf/ sshguard-1.1beta3/sshguard-1.1beta3/src'
> > make[1]: *** [all] Error 2 make[1]: Leaving directory
> > `/export/home/steve/ipf/ sshguard-1.1beta3/sshguard-1.1beta3/src'
> > make: *** [all-recursive] Error 1
> >
> >
> > I went into src directory and tried: (added -lnsl -lresolv)
> >
> > gcc  -I. -O2   -o sshguard  sshguard.o sshguard_whitelist.o ssh
> > uard_log.o sshguard_procauth.o simclist.o attack_parser.o 
> > attack_scanner.o fwal s/libfwall.a -lpthread -lnsl -lresolv
> >
> > but still get some linker errors
> >
> > gcc  -I. -O2   -o sshguard  sshguard.o sshguard_whitelist.o ssh
> > uard_log.o sshguard_procauth.o simclist.o attack_parser.o 
> > attack_scanner.o fwal s/libfwall.a -lpthread -lnsl -lresolv
> > Undefined                       first referenced
> >  symbol                             in file
> > _Exit                               sshguard_procauth.o
> > gethostbyname2                      attack_parser.o
> > unsetenv                            fwalls/libfwall.a(command.o)
> > setenv                              fwalls/libfwall.a(command.o) ld:
> > fatal: Symbol referencing errors. No output written to sshguard
> > collect2: ld returned 1 exit status
> >
> >
> > BTW I'm using gcc 3.4.2
> 
> 
> I answered this same problem in the past for a guy who contacted me 
> privately. I will publish this in the FAQ if you confirm this fixes
> the problem,  as soon as I have a moment. Here is the answer:
> 

I thought someone might have had the same problem and tried looking for a searchable 
archive of this list but couldn't find one.

> 
> the easiest is bypassing automake and compiling it manually.
> 
> Basically solaris doesn't include anything in default library search 
> path so you have to specify all manually. Moreover google tells me
> solaris has  not setenv() but only putenv(), so you have to make a
> minor edit to the source file. (I will not move the main tree to this
> one has it has been marked  deprecated by POSIX)
> 
> edit src/fwall/command.c, search for "setenv(COMMAND_ENVNAME_ADDR, 
> addr, 1)". Replace this with "putenv(COMMAND_ENVNAME_ADDR, addr)"
> (mind the  missing 1!). Do this for thrice the setenv() lines, then
> remove the "unsetenv"  lines near below

I got the error:

command.c: In function `run_command':
command.c:63: error: too many arguments to function `putenv'
command.c:64: error: too many arguments to function `putenv'
command.c:65: error: too many arguments to function `putenv'


Looking up the details on putenv I see that it only takes one arg as a "name=value" pair.
from "man putenv" and 
http://www.opengroup.org/onlinepubs/009695399/functions/putenv.html

so i changed the lines to

putenv(strcat(COMMAND_ENVNAME_ADDR,strcat("=",addr)));
putenv(strcat(COMMAND_ENVNAME_ADDRKIND,strcat("=",addrks)));
putenv(strcat(COMMAND_ENVNAME_SERVICE,strcat("=",servs)));


> 
> Save and get back into the "src" directory (cd ..)
> if you're using 1.3, edit sshguard_procauth.c and replace both _Exit
> () calls with _exit().

done

> 
> 
> then try compiling: run
> 
> gcc  -I. -O2   -o sshguard  sshguard.o sshguard_whitelist.o  
> sshguard_log.o sshguard_procauth.o simclist.o attack_parser.o  
> attack_scanner.o fwalls/libfwall.a -lpthread -lsocket -lresolv -lnsl

Did that and I get 1 linker error

gcc  -I. -O2   -o sshguard  sshguard.o sshguard_whitelist.o sshguard_log.o 
sshguard_procauth.o simclist.o attack_parser.o attack_scanner.o fwalls/libfwall.a -lpthread -
lsocket -lresolv -lnsl
Undefined                       first referenced
 symbol                             in file
gethostbyname2                      attack_parser.o
ld: fatal: Symbol referencing errors. No output written to sshguard
collect2: ld returned 1 exit status



Thanks


-Steve O.