BEGIN { print "000800" > "seq" close("seq") ARGV[1] = "seq" ARGC = 2 } { printf "%06d", $1 + 1 >"seq"; printf "%06d", $1 + 1 } # Date: Mon, 20 Jan 1997 15:14:06 -0600 (CST) # From: Dave Bodenstab # To: bug-gnu-utils@prep.ai.mit.edu # Subject: GNU awk 3.0.2 core dump # Cc: arnold@gnu.ai.mit.edu # # The following program produces a core file on my FreeBSD system: # # bash$ echo 000800 >/tmp/seq # bash$ gawk '{ printf "%06d", $1 + 1 >"/tmp/seq"; # printf "%06d", $1 + 1 }' /tmp/seq # # This fragment comes from mgetty+sendfax. # # Here is the trace: # # Script started on Mon Jan 20 15:09:04 1997 # bash$ gawk --version # GNU Awk 3.0.2 # Copyright (C) 1989, 1991-1996 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. # bash$ gdb gawk # GDB is free software and you are welcome to distribute copies of it # under certain conditions; type "show copying" to see the conditions. # There is absolutely no warranty for GDB; type "show warranty" for details. # GDB 4.13 (i386-unknown-freebsd), # Copyright 1994 Free Software Foundation, Inc... # (gdb) shell echo 000800 >/tmp/seq # (gdb) r '{ printf "%06d", $1 + 1 >"/tmp/seq"; printf "%06d", $1 + 1 }(gdb) r '{ printf "%06d", $1 + 1 >"/tmp/seq"; printf "%06d", $1 + 1 }' /tmp/seq # Starting program: /scratch/archive/src/cmd/gnuawk-3.0.2/gawk '{ printf "%06d", $1 + 1 >"/tmp/seq"; printf "%06d", $1 + 1 }' /tmp/seq # # Program received signal SIGBUS, Bus error. # 0xd86f in def_parse_field (up_to=1, buf=0x37704, len=6, fs=0x3b240, rp=0x0, # set=0xce6c , n=0x0) at field.c:391 # 391 sav = *end; # (gdb) bt # #0 0xd86f in def_parse_field (up_to=1, buf=0x37704, len=6, fs=0x3b240, # rp=0x0, set=0xce6c , n=0x0) at field.c:391 # #1 0xddb1 in get_field (requested=1, assign=0x0) at field.c:669 # #2 0xc25d in r_get_lhs (ptr=0x3b9b4, assign=0x0) at eval.c:1339 # #3 0x9ab0 in r_tree_eval (tree=0x3b9b4, iscond=0) at eval.c:604 # #4 0xa5f1 in r_tree_eval (tree=0x3b9fc, iscond=0) at eval.c:745 # #5 0x4661 in format_tree (fmt_string=0x3e040 "%06d", n0=0, carg=0x3ba20) # at builtin.c:620 # #6 0x5beb in do_sprintf (tree=0x3b96c) at builtin.c:809 # #7 0x5cd5 in do_printf (tree=0x3ba8c) at builtin.c:844 # #8 0x9271 in interpret (tree=0x3ba8c) at eval.c:465 # #9 0x8ca3 in interpret (tree=0x3bbd0) at eval.c:308 # #10 0x8c34 in interpret (tree=0x3bc18) at eval.c:292 # #11 0xf069 in do_input () at io.c:312 # #12 0x12ba9 in main (argc=3, argv=0xefbfd538) at main.c:393 # (gdb) l # 386 *buf += len; # 387 return nf; # 388 } # 389 # 390 /* before doing anything save the char at *end */ # 391 sav = *end; # 392 /* because it will be destroyed now: */ # 393 # 394 *end = ' '; /* sentinel character */ # 395 for (; nf < up_to; scan++) { # (gdb) print end # $1 = 0x804d006 # (gdb) print buf # $2 = (char **) 0x37704 # (gdb) print *buf # $3 = 0x804d000 # (gdb) q # The program is running. Quit anyway (and kill it)? (y or n) y # bash$ exit # # Script done on Mon Jan 20 15:11:07 1997 # # Dave Bodenstab # imdave@synet.net