[bug-gawk] crash at awk command

[Deepesh Aggarwal]

Hi Experts,

I tried to print the column of a nonexistence  file using awk command and found that this command is crashing.

awk '{print $NF}'  temp

ll temp

ls: cannot access temp: No such file or directory

Please see the snippet 

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*** glibc detected *** awk: free(): invalid pointer: 0x00000000006541a0 ***

======= Backtrace: =========

/lib64/libc.so.6[0x32d8076166]

awk[0x421e3a]

awk[0x421f2d]

awk[0x422233]

awk(do_input+0x17)[0x425a17]

awk(main+0xd9b)[0x42756b]

/lib64/libc.so.6(__libc_start_main+0xfd)[0x32d801ed1d]

awk[0x40613a]

======= Memory map: ========

00400000-00451000 r-xp 00000000 00:6b 3653874                            /grid/common/pkgsData/gawk-v3.1.5/Linux/RHEL4.0-1H2006-x86_64/bin/gawk

00650000-00652000 rw-p 00050000 00:6b 3653874                            /grid/common/pkgsData/gawk-v3.1.5/Linux/RHEL4.0-1H2006-x86_64/bin/gawk

00652000-00659000 rw-p 00000000 00:00 0

024b0000-024d1000 rw-p 00000000 00:00 0                                  [heap]

32d7800000-32d7820000 r-xp 00000000 08:03 823674                         /lib64/ld-2.12.so

32d7a1f000-32d7a20000 r--p 0001f000 08:03 823674                         /lib64/ld-2.12.so

32d7a20000-32d7a21000 rw-p 00020000 08:03 823674                         /lib64/ld-2.12.so

32d7a21000-32d7a22000 rw-p 00000000 00:00 0

32d7c00000-32d7c83000 r-xp 00000000 08:03 823676                         /lib64/libm-2.12.so

32d7c83000-32d7e82000 ---p 00083000 08:03 823676                         /lib64/libm-2.12.so

32d7e82000-32d7e83000 r--p 00082000 08:03 823676                         /lib64/libm-2.12.so

32d7e83000-32d7e84000 rw-p 00083000 08:03 823676                         /lib64/libm-2.12.so

32d8000000-32d818b000 r-xp 00000000 08:03 823675                         /lib64/libc-2.12.so

32d818b000-32d838a000 ---p 0018b000 08:03 823675                         /lib64/libc-2.12.so

32d838a000-32d838e000 r--p 0018a000 08:03 823675                         /lib64/libc-2.12.so

32d838e000-32d838f000 rw-p 0018e000 08:03 823675                         /lib64/libc-2.12.so

32d838f000-32d8394000 rw-p 00000000 00:00 0

32d8400000-32d8402000 r-xp 00000000 08:03 823680                         /lib64/libdl-2.12.so

32d8402000-32d8602000 ---p 00002000 08:03 823680                         /lib64/libdl-2.12.so

32d8602000-32d8603000 r--p 00002000 08:03 823680                         /lib64/libdl-2.12.so

32d8603000-32d8604000 rw-p 00003000 08:03 823680                         /lib64/libdl-2.12.so

32dd800000-32dd816000 r-xp 00000000 08:03 823683                         /lib64/libgcc_s-4.4.7-20120601.so.1

32dd816000-32dda15000 ---p 00016000 08:03 823683                         /lib64/libgcc_s-4.4.7-20120601.so.1

32dda15000-32dda16000 rw-p 00015000 08:03 823683                         /lib64/libgcc_s-4.4.7-20120601.so.1

2b27c3910000-2b27c3911000 rw-p 00000000 00:00 0

2b27c3969000-2b27c396c000 rw-p 00000000 00:00 0

2b27c396c000-2b27c97fd000 r--p 00000000 08:03 919240                     /usr/lib/locale/locale-archive

2b27c97fd000-2b27c9804000 r--s 00000000 08:03 919496                     /usr/lib64/gconv/gconv-modules.cache

2b27c9804000-2b27c9805000 rw-p 00000000 00:00 0

7fff895af000-7fff895c6000 rw-p 00000000 00:00 0                          [stack]

7fff895ff000-7fff89600000 r-xp 00000000 00:00 0                          [vdso]

ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

Abort (core dumped)

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

GNU Awk 3.1.5

Copyright (C) 1989, 1991-2005 Free Software Foundation.

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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Instead of crashing, it should report some kind of ERROR message.

Thanks

Linux User