Using Sablotron v 0.50 with XML::Sablotron v 0.50, Sablotron will cause
a segmentation fault if you supply an odd number of parameter elements.
Parameters should be supplied in pairs (name, value), so an odd number
of supplied parameters is an error, but a fatal error with associated
message should be produced, rater that a segfault.
It took quite a while finding out that this was what was causing the
segfault which was due to an error in my Perl :-(
Below is a backtrace:
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This GDB was configured as "i386-redhat-linux"...
(gdb) run -X
Starting program: /usr/sbin/httpd -X
Program received signal SIGSEGV, Segmentation fault.
0x402e3c33 in DStr::operator+= (this=0xbffff92c, adding=0x0) at
datastr.cpp:507
507 nadd(adding, strlen(adding));
Current language: auto; currently c++
(gdb) bt
#0 0x402e3c33 in DStr::operator+= (this=0xbffff92c, adding=0x0)
at datastr.cpp:507
#1 0x402e397d in DStr::DStr (this=0xbffff92c, chars=0x0) at
datastr.cpp:466
#2 0x402fc8d1 in Processor::useGlobalParam (this=0x85a1530,
name=0x85a2560 "index", val=0x0) at proc.cpp:1088
#3 0x402fd0d5 in SablotRunProcessor (processor_=0x85a1530,
sheetURI=0x85a2590 "stylesheet:main.xsl", inputURI=0x85a2570
"arg:/data",
resultURI=0x85cb2d8 "arg:/result", params=0x85d5d68,
arguments=0x81d5660)
at sablot.cpp:142
#4 0x402baf84 in XS_XML__Sablotron__Processor_RunProcessor ()
from
/usr/lib/perl5/site_perl/5.005/i386-linux/auto/XML/Sablotron/Sablotron.s
o
#5 0x80d7998 in Perl_pp_entersub ()
#6 0x8102e4d in Perl_runops_standard ()
#7 0x80a7ec1 in perl_call_sv ()
#8 0x8063d3b in perl_call_handler ()
#9 0x80636a6 in perl_run_stacked_handlers ()
#10 0x806228d in perl_handler ()
#11 0x807d403 in ap_invoke_handler ()
#12 0x8090c29 in process_request_internal ()
#13 0x8090c8c in ap_process_request ()
#14 0x808851e in child_main ()
#15 0x80886ac in make_child ()
#16 0x8088809 in startup_children ()
#17 0x8088e36 in standalone_main ()
#18 0x80895c3 in main ()
#19 0x400d09cb in __libc_start_main (main=0x808927c <main>, argc=2,
argv=0xbffffd34, init=0x805fe60 <_init>, fini=0x8102f5c <_fini>,
rtld_fini=0x4000ae60 <_dl_fini>, stack_end=0xbffffd2c)
at ../sysdeps/generic/libc-start.c:92
(gdb)
--
Stuart Clark
mailto:[EMAIL PROTECTED]
http://www.Jahingo.com/
