Hi! I have this problem that if I call rrd_update(), rrd_create(), etc. consecutively in a C program with parameters which need to be parsed using getopt, then these functions break horribly. Here is a stack trace from such a crash:
------------< snip <------< snip <------< snip <------------ . . . DEBUG: html.c:159: www/lindsey.frogfoot.net/1/status.png NOISY: db.c:413: rrd_graph NOISY: db.c:414: argv[ 0]: graph NOISY: db.c:414: argv[ 1]: www/lindsey.frogfoot.net/1/status.png NOISY: db.c:414: argv[ 2]: --imgformat NOISY: db.c:414: argv[ 3]: PNG NOISY: db.c:414: argv[ 4]: --end NOISY: db.c:414: argv[ 5]: 1017782242 NOISY: db.c:414: argv[ 6]: --vertical-label NOISY: db.c:414: argv[ 7]: NOISY: db.c:414: argv[ 8]: --width NOISY: db.c:414: argv[ 9]: 540 NOISY: db.c:414: argv[10]: --height NOISY: db.c:414: argv[11]: 200 NOISY: db.c:414: argv[12]: --title NOISY: db.c:414: argv[13]: Tue Apr 2 23:17:22 SAST 2002 NOISY: db.c:414: argv[14]: DEF:AdminStatus=db/lindsey.frogfoot.net/1.rrd:ifAdminStatus:LAST NOISY: db.c:414: argv[15]: DEF:OperStatus=db/lindsey.frogfoot.net/1.rrd:ifOperStatus:LAST NOISY: db.c:414: argv[16]: CDEF:AllStatus=AdminStatus,OperStatus,+ NOISY: db.c:414: argv[17]: CDEF:Unknown=AllStatus,UN,INF,UNKN,IF NOISY: db.c:414: argv[18]: AREA:Unknown#ff0000:Unknown\n NOISY: db.c:414: argv[19]: AREA:OperStatus#005b54:Operational status\n NOISY: db.c:414: argv[20]: LINE3:AdminStatus#b100ff:Administrative status\n DEBUG: db.c:153: updating database db/anura.frogfoot.net/8.rrd: N:U:U:U:U:U:U:2:2 Segmentation fault (core dumped) [EMAIL PROTECTED]:~/Development/c++/projects/snmp/src/managers/orca/src# gdb -c core ./orca GNU gdb 19990928 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or 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. This GDB was configured as "i686-pc-linux-gnu"...(no debugging symbols found)... Core was generated by ./orca orca.conf'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/local/lib/libber.so.0...done. Reading symbols from /usr/local/lib/libdebug.so.0...done. Reading symbols from /usr/local/lib/libconfig.so.0...done. Reading symbols from /usr/lib/librrd.so.0...done. Reading symbols from /lib/libc.so.6...done. Reading symbols from /usr/lib/libpng.so.2...done. Reading symbols from /usr/lib/libgd-gif.so.1...done. Reading symbols from /lib/libm.so.6...done. Reading symbols from /lib/ld-linux.so.2...done. Reading symbols from /usr/lib/libz.so.1...done. Reading symbols from /lib/libnss_files.so.2...done. Reading symbols from /lib/libnss_dns.so.2...done. Reading symbols from /lib/libresolv.so.2...done. #0 0x40101609 in confstr () from /lib/libc.so.6 (gdb) bt #0 0x40101609 in confstr () from /lib/libc.so.6 #1 0x4010237c in getopt_long () from /lib/libc.so.6 #2 0x4002d2c4 in rrd_update () from /usr/lib/librrd.so.0 #3 0x804b9c7 in strcpy () #4 0x804ce09 in strcpy () #5 0x400606cf in __libc_start_main () from /lib/libc.so.6 (gdb) ------------< snip <------< snip <------< snip <------------ rrd_graph() in this case also manages to create a GIF with the filename "Tue Apr 2 23:17:22 SAST 2002" (the title string). I've reliably reproduced this with all the rrd_*() functions iff I use parameters that needs getopt parsing (e.g. -b, --imgformat, etc.) Details of rrdtool on my system: ------------< snip <------< snip <------< snip <------------ [EMAIL PROTECTED]:~/Development/c++/projects/snmp/src/managers/orca/src# dpkg -s rrdtool Package: rrdtool Status: install ok installed Priority: extra Section: utils Installed-Size: 1772 Maintainer: Matt Zimmerman <[EMAIL PROTECTED]> Version: 1.0.33-9 Depends: libc6 (>= 2.2.4-4), libgd-gif1, libpng2 (>= 1.0.12), librrd0 (>= 1.0.10-1) Suggests: librrds-perl Description: Time-series data storage and display system (programs) RRD is the Acronym for Round Robin Database. RRD is a system to store and display time-series data (i.e. network bandwidth, machine-room temperature, server load average). It stores the data in a very compact way that will not expand over time, and it presents useful graphs by processing the data to enforce a certain data density. It can be used either via simple wrapper scripts (from shell or Perl) or via frontends that poll network devices and put friendly user interface on it. . This package contains command line programs used to access and manipulate RRDs. ------------< snip <------< snip <------< snip <------------ -- Regards Abraham "And remember: Evil will always prevail, because Good is dumb." -- Spaceballs ___________________________________________________ Abraham vd Merwe [ZR1BBQ] - Frogfoot Networks P.O. Box 3472, Matieland, Stellenbosch, 7602 Cell: +27 82 565 4451 Http: http://www.frogfoot.net Email: [EMAIL PROTECTED] -- Binary/unsupported file stripped by Listar -- -- Err : No filename to use for decode, file stripped. -- Type: application/pgp-signature -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-developers WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
