pjsip test application: bus error

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Hi Michael,

thanks for the report, and sorry for not responding earlier. I'm curious why
this breaks on your platform, what gcc version do you use?

But anyway, I think this could be fixed by changing "char *hcontent" field
in "struct hdr_test_t" declaration to "char hcontent[1024]", which I just
did in http://trac.pjsip.org/repos/ticket/704.

thanks,
 Benny

On Mon, Jan 26, 2009 at 10:06 PM, Michael Broughton <
Michael_Broughton at advanis.ca> wrote:

> Update:
>
> It seems that this test will not run correctly unless
> PJSIP_UNESCAPE_IN_PLACE is set to 0.
>
>
>
>
> Michael Broughton wrote:
>
>> Hello,
>>
>> I have been running with the same version of pjsip for over a year now,
>> and I would like to update to version 1.x.
>>
>> So I checked out the latest code from svn and I built it with the
>> following config:
>>
>> ./aconfigure --disable-sound CFLAGS="-O0 -g"
>>
>> This is on a FreeBSD 6.2 x86_64 box. I usually compile with -O2 but I had
>> to turn that off because the pjsip-test application is giving me a core
>> dump. I have run all of the other test applications without error.
>>
>> It took a while to track this one down, but it seems to be coming from
>> pjsip/src/test-pjsip/msg_test.c in the function hdr_test():
>>
>> (gdb) print hdr_test_data[8]
>> $30 = {hname = 0x464032 "Contact", hshort_name = 0x46403a "m", hcontent =
>> 0x464050
>> "<sip:host;][/:&+$=][/:&+$;p1=\";\">;p0=a;p1=\"ab:;cd\";p2=ab%3acd;p3", test
>> = 0x406dc0 <hdr_test_contact1>, flags = 0}
>>
>> The problem is with the 'hcontent' string, which is located in a read-only
>> memory section. It looks like the test is trying to unescape the "%3a" in
>> place. This results in a coredump (Bus error). Here is the backtrace and
>> memory section in question:
>>
>> (gdb) backtrace
>> #0  0x000000000045031e in pj_scan_get_unescape (scanner=0x7fffffffe3a0,
>> spec=0x57c8b0, out=0x7fffffffe250) at ../src/pjlib-util/scanner.c:310
>> #1  0x000000000042830d in parser_get_and_unescape (scanner=0x7fffffffe3a0,
>> pool=0x2c57000, spec=0x57c4b0, unesc_spec=0x57c8b0, token=0x7fffffffe250) at
>> ../src/pjsip/sip_parser.c:217
>> #2  0x00000000004282b4 in parse_param_imp (scanner=0x7fffffffe3a0,
>> pool=0x2c57000, pname=0x7fffffffe260, pvalue=0x7fffffffe250, spec=0x57c4b0,
>> esc_spec=0x57c8b0, option=0) at ../src/pjsip/sip_parser.c:1102
>> #3  0x0000000000428371 in pjsip_parse_param_imp (scanner=0x7fffffffe3a0,
>> pool=0x2c57000, pname=0x7fffffffe260, pvalue=0x7fffffffe250, option=0) at
>> ../src/pjsip/sip_parser.c:1113
>> #4  0x0000000000428430 in int_parse_param (scanner=0x7fffffffe3a0,
>> pool=0x2c57000, pname=0x7fffffffe260, pvalue=0x7fffffffe250, option=0) at
>> ../src/pjsip/sip_parser.c:1137
>> #5  0x00000000004293b3 in int_parse_contact_param (hdr=0x2c570a8,
>> scanner=0x7fffffffe3a0, pool=0x2c57000) at ../src/pjsip/sip_parser.c:1679
>> #6  0x0000000000429620 in parse_hdr_contact (ctx=0x7fffffffe370) at
>> ../src/pjsip/sip_parser.c:1729
>> #7  0x000000000042a47b in pjsip_parse_hdr (pool=0x2c57000,
>> hname=0x7fffffffe480, buf=0x464050
>> "<sip:host;][/:&+$=][/:&+$;p1=\";\">;p0=a;p1=\"ab:;cd\";p2=ab%3acd;p3",
>> size=64, parsed_len=0x7fffffffe478) at ../src/pjsip/sip_parser.c:2146
>> #8  0x000000000040785a in hdr_test () at ../src/test-pjsip/msg_test.c:1744
>> #9  0x0000000000407b90 in msg_test () at ../src/test-pjsip/msg_test.c:1824
>> #10 0x000000000040a45a in test_main () at ../src/test-pjsip/test.c:298
>> #11 0x0000000000402e5d in main (argc=1, argv=0x7fffffffebd0) at
>> ../src/test-pjsip/main.c:80
>>
>> $ objdump -h pjsip/bin/pjsip-test-x86_64-unknown-freebsd6.2
>>
>> pjsip/bin/pjsip-test-x86_64-unknown-freebsd6.2:     file format
>> elf64-x86-64
>>
>> Sections:
>> Idx Name          Size      VMA               LMA               File off
>>  Algn
>> ...
>> 12 .rodata       0001320a  0000000000463100  0000000000463100  00063100
>>  2**5
>>                 CONTENTS, ALLOC, LOAD, READONLY, DATA
>> ...
>>
>> I am wondering if this is a problem with the test? Or do I have something
>> mis-configured?
>>
>>
> --
> Michael Broughton, Advanis
>
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