[ net-snmp-Bugs-583571 ] Compile errors on SCO OpenServer 5.0.5

[<no...@so...>]

Bugs item #583571, was opened at 2002-07-18 23:24
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Dana Kaempen (kaempen)
Assigned to: Nobody/Anonymous (nobody)
Summary: Compile errors on SCO OpenServer 5.0.5

Initial Comment:
I'm trying to compile net-snmp-5.0.2.pre1 on SCO
OpenServer 5.0.5, but am getting halted quite early due
to two undeclared variables (error lines from the make
output):

system.c: In function `get_boottime':
system.c:591: `L_SET' undeclared (first use in this
function)
system.c:591: (Each undeclared identifier is reported
only once
system.c:591: for each function it appears in.)
system.c: In function `mkdirhier':
system.c:833: `MAXPATHLEN' undeclared (first use in
this function)
*** Error code 1 (bu21)
*** Error code 1 (bu21)

The first error, L_SET, refers to the last field in the
function lseek.  I only see one line in
/usr/include/unistd.h which refers to lseek and  this
is it:

extern off_t      lseek(int, off_t, int);

Under AIX 4.3.3, where it also won't compile but gets
past system.c, there are two definitions for lseek, but
they're ifdef'd separately:

extern off_t lseek();
extern off_t lseek(int, off_t, int);


The other error, the MAXPATHLEN, is a bit easier to
understand.  The error is generated on this line:
    char            buf[SNMP_MAXPATH];

I'm guessing that the value of SNMP_MAXPATH is
MAXPATHLEN, since there's no actual reference to
MAXPATHLEN in system.c.  SNMP_MAXPATH is only used 3
times in system.c, and not in any other program.  The
other 2 times it's used in system.c are commented out -
therefore, it's undefined.


This is as far as I'm capable of diagnosing these
problems.  I'm not a C coder, so I don't know the
proper way to fix either of the issues above.  I have
two separate directories, one where I'm using gcc as
the compiler, the other using cc.  Both give the same
errors (I used the gcc errors here because they're
slightly more verbose).  Any thoughts or help in moving
forward would be appreciated.

Thank you!

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>Comment By: Dave Shield (dts12)
Date: 2002-07-31 13:49

Message:
Logged In: YES 
user_id=88893

Errr... no, that wasn't the right solution.
We can't really ask people to change the system
header files just for this package.
   The first thing to do is to check whether
L_SET is defined somewhere else.  Try

  cd /usr/include
  find . -type f -print |xargs grep L_SET

and if that doesn't throw anything up, try
with SEEK_SET.  (That might be a better token
to use anyway, judging by the 'lseek' man page).

As far as the MAXPATHLEN stuff's concerned, the
patch was:
--- tools.h     20 Apr 2002 07:30:12 -0000      5.0
+++ tools.h     19 Jul 2002 11:04:07 -0000      5.1
@@ -20,7 +20,11 @@
 #  ifdef PATH_MAX
 #    define SNMP_MAXPATH PATH_MAX
 #  else
-#    define SNMP_MAXPATH MAXPATHLEN
+#    ifdef MAXPATHLEN
+#      define SNMP_MAXPATH MAXPATHLEN
+#    else
+#      define SNMP_MAXPATH 1024
+#    endif
 #  endif
 #endif

and should be included in the next release.

----------------------------------------------------------------------

Comment By: Dana Kaempen (kaempen)
Date: 2002-07-30 17:08

Message:
Logged In: YES 
user_id=580512

Dave -

Thanks for the pointing me to the "official" location of
L_SET - on this version of SCO, there was nothing defined
for L_SET, so I grabbed the three lines from a Solaris
system and modified <sys/file.h> - I'll give it a shot as
soon as I can get the updated source code.  Speaking of
which...

How can I get a copy of your MAXPATHLEN changes?  The
distributed source doesn't appear  to have been updated and
I didn't see anything under 'patches,' either.  At wits'
end, would you send them to me?  My email is below (remove
the anti-spam letters):
decay@NO_BOTSflash.net

Thank you for your help.

Dana

----------------------------------------------------------------------

Comment By: Dave Shield (dts12)
Date: 2002-07-30 15:57

Message:
Logged In: YES 
user_id=88893

I've tweaked the code to default to a sensible
value if MAXPATHLEN (or similar) can't be found.

The L_SET problem is a bit harder to fix.  Can
you check your system header files to see where
it might be defined, please?  I'd typically
expect to see this in <sys/file.h>

  That might help track down why you're not
seeing it here.

Dave


----------------------------------------------------------------------

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