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Summary:ASTERISK-01221: [patch] ${LEN()} crashes on string containing colon (:)
Reporter:Tilghman Lesher (tilghman)Labels:
Date Opened:2004-03-16 12:10:33.000-0600Date Closed:2008-01-15 14:47:43.000-0600
Priority:CriticalRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) 20040316__pbx_fix_len.diff.txt
Description:Mysterious segfault crash.  It doesn't appear to be anything obvious.

****** ADDITIONAL INFORMATION ******

#0  0x08064d30 in pbx_substitute_variables_temp (c=0x8141810,
   var=0x49f6bacc "LEN(H323/${EXTEN:3}@69.43.135.248)", ret=0x49f6b9c8, workspace=0x49f6bbcc "",
   workspacelen=256) at pbx.c:784
784                     (*ret)[offset2] = '\0';
(gdb) bt
#0  0x08064d30 in pbx_substitute_variables_temp (c=0x8141810,
   var=0x49f6bacc "LEN(H323/${EXTEN:3}@69.43.135.248)", ret=0x49f6b9c8, workspace=0x49f6bbcc "",
   workspacelen=256) at pbx.c:784
#1  0x080658b4 in pbx_substitute_variables_helper (c=0x8141810, cp1=0x49f6bd1c "${LEN(${dstring})} = 0",
   cp2=0x49f6be1c "", count=255) at pbx.c:1038
#2  0x08065b54 in pbx_substitute_variables_helper (c=0x8141810,
   cp1=0x42f455b0 "$[${LEN(${dstring})} = 0]?306", cp2=0x49f6c22c "", count=255) at pbx.c:1082
#3  0x0806b947 in pbx_extension_helper (c=0x8141810, context=0x8141968 "outgoing", exten=0x49f6c22c "",
   priority=105, callerid=0x0, action=135141368) at pbx.c:1168
#4  0x0806635c in ast_pbx_run (c=0x80e17f8) at pbx.c:1661
ASTERISK-1  0x46965d56 in ss_thread (data=0x8141810) at chan_zap.c:4325
ASTERISK-2  0x40025811 in pthread_start_thread () from /lib/i686/libpthread.so.0
(gdb) p offset2
$1 = 0
(gdb) p *ret
$2 = 0x80bb047 ""
Comments:By: Mark Spencer (markster) 2004-03-19 01:41:17.000-0600

Fixed in both stable and head.
By: Digium Subversion (svnbot) 2008-01-15 14:47:42.000-0600

Repository: asterisk
Revision: 2468

U   branches/v1-0_stable/pbx.c

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r2468 | markster | 2008-01-15 14:47:42 -0600 (Tue, 15 Jan 2008) | 2 lines

Fix LEN segfault (bug ASTERISK-1221)

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http://svn.digium.com/view/asterisk?view=rev&revision=2468
By: Digium Subversion (svnbot) 2008-01-15 14:47:43.000-0600

Repository: asterisk
Revision: 2469

U   trunk/pbx.c

------------------------------------------------------------------------
r2469 | markster | 2008-01-15 14:47:43 -0600 (Tue, 15 Jan 2008) | 2 lines

Fix LEN segfault (bug ASTERISK-1221)

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

http://svn.digium.com/view/asterisk?view=rev&revision=2469