 |
≫ |
|
|
|
パッチ名: PHCO_36053
パッチ摘要: s700_800 11.23 awk(1)累積パッチ
作成日: 07/02/28
公開日: 07/04/17
ハードウェアプラットフォームおよびOSリリース:
s700: 11.23
s800: 11.23
現象:
PHCO_36053:
1.(SR:8606437463 CR:JAGaf95646)
コメントの長さが200文字を超えていると、awk(1)スクリプトがコアダンプを
取ります。
2.(SR:8606454763 CR:JAGag11389)
UNIX95モードの場合、awk(1)が非整数値を正しく表示しません。
問題点の説明:
PHCO_36053:
1.(SR:8606437463 CR:JAGaf95646)
コメントの長さが200文字を超えていると、awk(1)スクリプトが、コアダンプ
を取るか、エラーメッセージを表示して終了していました。
awkスクリプトの1例:
function hugo()
{
printf("Hello\n");
}
BEGIN {
hugo();
}
#12345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
01234567890123456789012345678901234567890
# awk -f file1
awk: Cannot make an assignment to . It is a function.
The source line number is 7.
または
# awk -f file1
Memory fault(coredump)
単に長いコメントを書くだけで、この問題を再現できます。
解決方法:
これらのコメントを無視するようにawk(1)を修正しました。
これで、上記のawk(1)スクリプトは次のように正しい出力を表示します。
$ awk -f file1
Hello
2.(SR:8606454763 CR:JAGag11389)
UNIX95仕様によると、整数値と等しい数値の場合、awk(1)は内部変換フォーマ
ットとして%dを使用しなければなりません。その他の数値の場合は、fmt引き
数として変数CONVFMTの値を使って文字列に変換する必要があります。ところ
が、次のような問題が起きていました。
$ print 2147483648 | UNIX95=1 awk '{ print $1-0 }'
出力: 2147483647 (これは不正な出力です)
変換する数値が整数でない(INT_MAXより大きい)場合でも、書式指定子として
%dを使用していました。
解決方法:
UNIX95標準に準拠するようにawk(1)を修正しました。
これで、上記の例の場合、次のように正しい出力が表示されます。
$ print 2147483648 | UNIX95=1 awk '{ print $1-0 }'
2.14748e+09
-----------------------------------------------------------------------------
Patch Name: PHCO_36053
Patch Description: s700_800 11.23 awk(1) cumulative patch
Creation Date: 07/02/28
Post Date: 07/04/17
Hardware Platforms - OS Releases:
s700: 11.23
s800: 11.23
Products: N/A
Filesets:
OS-Core.CORE-ENG-A-MAN,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,v=HP
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP
Automatic Reboot?: No
Status: General Release
Critical:
Yes
PHCO_36053: ABORT
Category Tags:
defect_repair general_release critical halts_system
Path Name: /hp-ux_patches/s700_800/11.X/PHCO_36053
Symptoms:
PHCO_36053:
( SR:8606437463 CR:JAGaf95646 )
awk(1) script core dumps if the comment length is > 200
characters.
( SR:8606454763 CR:JAGag11389 )
The behaviour of awk(1) under UNIX95 mode when printing
non-integers is wrong.
PHCO_33931:
( SR:8606413259 CR:JAGaf73120 )
awk(1) doesn't recognize invalid assignment arguments on
the command line as file names.
PHCO_31541:
( SR:8606350356 CR:JAGaf11176 )
awk(1) stores wrong value for ARGV[0] if awk(1) was
invoked with path (relative or absolute).
Defect Description:
PHCO_36053:
( SR:8606437463 CR:JAGaf95646 )
awk(1) script core dumps if the comment length is > 200
characters. Sometimes it core dumps and sometimes it exits
with an error message.
Example:
Suppose an awk script is as follows:
function hugo()
{
printf("Hello\n");
}
BEGIN {
hugo();
}
#12345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890123456789
01234567890123456789012345678901234567890
# awk -f file1
awk: Cannot make an assignment to . It is a function.
The source line number is 7.
Or
# awk -f file1
Memory fault(coredump)
The defect can be reproduced just by having a long comment.
Resolution:
awk(1) is modified to ignore comments.
The above awk(1) script gives the following output with the
fix:
$ awk -f file1
Hello
( SR:8606454763 CR:JAGag11389 )
According to UNIX95 specification, awk(1) should use %d as
the internal conversion format for a numeric value that is
exactly equal to the value of an integer. Any other numeric
value should be converted to a string with the value of the
variable CONVFMT as the fmt argument. The defect can be
seen as:
$ print 2147483648 | UNIX95=1 awk '{ print $1-0 }'
O/p : 2147483647 (This is wrong o/p)
Here %d is used as the format specifier even if the number
to be converted is non-integer (greater than INT_MAX).
Resolution:
awk(1) is modified to comply with the UNIX95 standards.
The above example gives the following output with fix:
$ print 2147483648 | UNIX95=1 awk '{ print $1-0 }'
2.14748e+09
PHCO_33931:
( SR:8606413259 CR:JAGaf73120 )
According to UNIX95 specification, awk(1) should consider
invalid assignment arguments as filenames. The defect can
be seen when awk(1) command is run as follows:
awk '{print $0}' 1x=y =x inputfile
When the UNIX95 environment variable is set, the arguments
"1x=y" and "=x" in the above command shouldn't be resolved
as assignments.
Resolution:
awk(1) has been modified to comply with the
unix95 standards.
PHCO_31541:
( SR:8606350356 CR:JAGaf11176 )
If awk(1) is invoked with path (relative or absolute),
awk(1) stores truncated value in ARGV[0]. The path
(relative or absolute) is removed and only 'awk' is
stored in ARGV[0]. The defect can be reproduced by
the following steps:
$/usr/bin/awk 'BEGIN { print ARGV[0] ; exit }'
awk
This should have printed '/usr/bin/awk'.
Resolution:
The UNIX95 behavior of awk(1) is modified so that
ARGV[0] contains the pathname along-with 'awk'.
Enhancement:
No
SR:
8606437463 8606454763 8606413259 8606350356
Patch Files:
OS-Core.CORE-ENG-A-MAN,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,
v=HP:
/usr/share/man/man1.Z/awk.1
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
/sbin/awk
/usr/bin/awk
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
/sbin/awk
/usr/bin/awk
what(1) Output:
OS-Core.CORE-ENG-A-MAN,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,
v=HP:
/usr/share/man/man1.Z/awk.1:
None
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
/sbin/awk:
lib.c $Date: 2007/02/23 16:15:06 $Revision: r11.23/2
PATCH_11.23 (PHCO_36053)
$Revision: @(#) awk R11.23_BL2007_0228_2 PATCH_11.23
PHCO_36053
/usr/bin/awk:
lib.c $Date: 2007/02/23 16:15:06 $Revision: r11.23/2
PATCH_11.23 (PHCO_36053)
$Revision: @(#) awk R11.23_BL2007_0228_2 PATCH_11.23
PHCO_36053
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
/sbin/awk:
$Revision: 92453-07 linker linker crt0.o B.11.16.01
030415 $
lib.c $Date: 2007/02/23 16:15:06 $Revision: r11.23/2
PATCH_11.23 (PHCO_36053)
$Revision: @(#) awk R11.23_BL2007_0228_2 PATCH_11.23
PHCO_36053
$ Internal_Unsupported_Version Feb 21 2007 22:53:54
$
/usr/bin/awk:
$Revision: 92453-07 linker linker crt0.o B.11.16.01
030415 $
lib.c $Date: 2007/02/23 16:15:06 $Revision: r11.23/2
PATCH_11.23 (PHCO_36053)
$Revision: @(#) awk R11.23_BL2007_0228_2 PATCH_11.23
PHCO_36053
cksum(1) Output:
OS-Core.CORE-ENG-A-MAN,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,
v=HP:
888279328 8920 /usr/share/man/man1.Z/awk.1
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
3284979218 1129516 /sbin/awk
3062373713 271696 /usr/bin/awk
OS-Core.UX2-CORE,fr=B.11.23,fa=HP-UX_B.11.23_PA,v=HP:
3953961002 606208 /sbin/awk
1442844070 184320 /usr/bin/awk
Patch Conflicts: None
Patch Dependencies: None
Hardware Dependencies: None
Other Dependencies: None
Supersedes:
PHCO_31541 PHCO_33931
Equivalent Patches: None
Patch Package Size: 850 KBytes
Installation Instructions:
Please review all instructions and the Hewlett-Packard
SupportLine User Guide or your Hewlett-Packard support terms
and conditions for precautions, scope of license,
restrictions, and, limitation of liability and warranties,
before installing this patch.
------------------------------------------------------------
1. Back up your system before installing a patch.
2. Login as root.
3. Copy the patch to the /tmp directory.
4. Move to the /tmp directory and unshar the patch:
cd /tmp
sh PHCO_36053
5. Run swinstall to install the patch:
swinstall -x autoreboot=true -x patch_match_target=true \
-s /tmp/PHCO_36053.depot
By default swinstall will archive the original software in
/var/adm/sw/save/PHCO_36053. If you do not wish to retain a
copy of the original software, include the patch_save_files
option in the swinstall command above:
-x patch_save_files=false
WARNING: If patch_save_files is false when a patch is installed,
the patch cannot be deinstalled. Please be careful
when using this feature.
For future reference, the contents of the PHCO_36053.text file is
available in the product readme:
swlist -l product -a readme -d @ /tmp/PHCO_36053.depot
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHCO_36053.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions: None
|
