Experimental Physics and Industrial Control System
Hi,
we are using Asyn driver support for our IOC. The @param part of the
INP/PUT string can get pretty long - more than 40 characters, excluding
other macros that might be present in the field value ($(PORT), $(ADDR),
..).
According to this thread
http://www.aps.anl.gov/epics/tech-talk/2010/msg00270.php, INP/OUT record
field value is not supposed to be limited and as it seems it is not,
since our IOC runs fine.
The problem appears if the user tries to execute dbReportDeviceConfig
from ioc shell - IOC segFaults.
I've tracked the problem down and it seems that dbReportDeviceConfig()
is reserving too small buffer to hold @param (40 chars), while
dbGetString() can return up to 100 chars in the message.
Following patch should fix the issue:
Index: src/dbStatic/dbStaticLib.c
===================================================================
--- src/dbStatic/dbStaticLib.c (revision 16136)
+++ src/dbStatic/dbStaticLib.c (working copy)
@@ -4060,7 +4060,7 @@
DBENTRY *pdbentry=&dbentry;
long status;
char busName[40];
- char linkValue[40];
+ char linkValue[100];
char dtypValue[40];
char cvtValue[40];
int ilink,nlinks;
Best regards,
Hinko
--
Hinko Kocevar
Software development engineer
Instrumentation Technologies d.d.
Velika pot 22, SI-5250 Solkan - Slovenia
T:+386 5 3352600, F:+386 5 3352601
E-mail: [email protected]
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