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We may call arg_count/grouped_arg_count/arg_value soon enough that cmd->arg_values is not set yet. Normally, when running a command, we execute lvm_run_command which in turn calls _process_command_line to allocate and parse the command line values and stores them in cmd->arg_values. However, if we run lvm shell, this one doesn't accept any command line options and we parse the command line for each command that is executed within the lvm shell then. If we used any code that tries to access cmd->arg_values through any of the the arg handling functions too early, we could end up with a segfault due to uninitialized (NULL) cmd->arg_values. This patch just saves extra checks in all the code where arg handling may be called too early so that the cmd->arg_values is not set up yet. This does not apply to any of existing code, but subsequent patches will need that. |
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| autoconf | ||
| conf | ||
| coverity | ||
| daemons | ||
| doc | ||
| include | ||
| lib | ||
| libdaemon | ||
| libdm | ||
| liblvm | ||
| man | ||
| nix | ||
| old-tests | ||
| po | ||
| python | ||
| report-generators | ||
| reports | ||
| scripts | ||
| spec | ||
| test | ||
| tools | ||
| udev | ||
| unit-tests | ||
| .gitignore | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| INSTALL | ||
| make.tmpl.in | ||
| Makefile.in | ||
| README | ||
| VERSION | ||
| VERSION_DM | ||
| WHATS_NEW | ||
| WHATS_NEW_DM | ||
This tree contains the LVM2 and device-mapper tools and libraries. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sources.redhat.com/pub/lvm2/ The source code is stored in git: http://git.fedorahosted.org/git/lvm2.git git clone git://git.fedorahosted.org/git/lvm2.git Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing lists for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel lvm2-commits@lists.fedorahosted.org (Read-only archive of commits) Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel The source code repository used until 7th June 2012 is accessible here: http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.