DB2 FOR LUW / DB2FORLUW / 970 - DB2

In Linux, when pressing key '.' on db2top welcome page in 
interactive mode, db2top  will crash. 
 
<StackTrace> 
---FUNC-ADDR---- ------FUNCTION + OFFSET------ 
0000002A96F6DF7F ossDumpStackTraceEx + 0x01f7 
 
(/view/db2_v95fp4_linuxamd64_s090429/vbs/INST/lib/libdb2osse.so. 
1) 
0000002A96F69ABA _ZN11OSSTrapFile6dumpExEmiP7siginfoPvm + 0x00b4 
 
(/view/db2_v95fp4_linuxamd64_s090429/vbs/INST/lib/libdb2osse.so. 
1) 
0000002A96F69B81 _ZN11OSSTrapFile4dumpEmiP7siginfoPv + 0x0009 
 
(/view/db2_v95fp4_linuxamd64_s090429/vbs/INST/lib/libdb2osse.so. 
1) 
0000002A9618733B sqlo_trce + 0x03f3 
 
(/view/db2_v95fp4_linuxamd64_s090429/vbs/INST/lib/libdb2.so.1) 
000000000044E1E7 interrupt + 0x00ef 
                (db2top) 
0000002A97AAE380 address: 0x0000002A97AAE380 ; dladdress: 
0x0000002A97A80000 ; offset in lib: 0x000000000002E380 ; 
                (/lib64/tls/libc.so.6) 
0000002A97AA840E isdigit + 0x001e 
                (/lib64/tls/libc.so.6) 
0000000000442BCB do_foreground + 0x03af 
                (db2top) 
0000000000441BED main + 0x00d9 
                (db2top) 
0000002A97A9CACD __libc_start_main + 0x00fd 
                (/lib64/tls/libc.so.6) 
00000000004173AA __gxx_personality_v0 + 0x007a 
                (db2top) 
</StackTrace> 
 
that is because in main.c - > do_foreground() -> isdigit(ch), 
when pressing char '.', ch will be assigned to old_ch,  where 
old_ch was declared as " int old_ch " without initialization. On 
welcome page, old_ch hasn't be assigned to any value, yet. 
Hence, 
In Linux, isdigit(ch) will triger SIGSEGV, In AIX, this is fine, 
though. 
 
Fix: Initialize ch and old_chr to 0 when declaring variables.

IN LINUX, PRESSING '.' ON WELCOME PAGE IN INTERACTIVE MODE WILL 
CRASH DB2TOP

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

24.06.2010
30.06.2010
30.06.2010