I was unable to build from source with nopt and nostrip to help
with gdb.
However, using just cups-dbg, I have this gdb session:-
--------------------------------------------------------------
# gdb lpinfo
...
(gdb) break httpStatus
Function "httpStatus" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (httpStatus) pending.
(gdb) run -m
Starting program: /usr/sbin/lpinfo -m
[Thread debugging using libthread_db enabled]
Breakpoint 1, httpStatus (status=HTTP_ERROR) at http-support.c:1258
1258 {
(gdb) bt
#0 httpStatus (status=HTTP_ERROR) at http-support.c:1258
#1 0xb7fa2acc in _cupsSetHTTPError (status=HTTP_ERROR) at request.c:1085
#2 0xb7fa2de4 in cupsGetResponse (http=<optimized out>,
resource=0xb7fff745 "/") at request.c:488
#3 0xb7fa3138 in cupsDoIORequest (http=0xb800f250, request=0xb8002918,
resource=0xb7fff745 "/", infile=-1, outfile=-1) at request.c:270
#4 0xb7fa33ab in cupsDoRequest (http=0x0, request=0xb8002918,
resource=0xb7fff745 "/") at request.c:337
#5 0xb7ffeb80 in show_models (exclude_schemes=0x0, include_schemes=0x0,
product=0x0, make_model=0x0, language=0x0, device_id=0x0, long_status=0)
at lpinfo.c:399
#6 main (argc=2, argv=0xbffffd74) at lpinfo.c:116
(gdb)
----------------------------------------------------------
It seems then that the switch statement in httpStatus in http-support.c
needs at least one extra branch for HTTP_ERROR.
I suppose that I need to examine request.c next to try to understand
how the error arises.
ael
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