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This just tidies up the main() function in the daemon. There is
no longer a huge fixed-sized buffer used for the kernel command
line. Variables are moved closer to where they are used. Some
local variables turned out to be unused - these are removed. Finally
the part that reads the kernel command line is moved into a separate
function.
There is only minimal functional change here (it now prints out
the kernel command line).
Literal '4' replaced with 'sizeof' expression, at Jim Meyering's
suggestion during patch review.
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Since we control the appliance tightly, we can just specify
that it will always use a particular host and port, and we
don't need to pass it on the command line each time.
Also the VMCHANNEL_* constants are only relevant to the
particular guestfwd vmchannel implementation, so we rename
them as GUESTFWD_*.
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If xread or xwrite returns -1, that indicates an error and we
should exit. Note that xread/xwrite has already printed the
error message.
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* daemon/guestfsd.c (xread, xwrite): Use char* pointers instead.
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Also, ...
* src/generator.ml: Add DeviceList type, and propagate that change
out to all calling/interface code.
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* daemon/guestfsd.c (print_arginfo, print_shell_quote): Mark each
"info" parameter as unused.
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Do it by running this command:
[exempted files are matched via .x-sc_TAB_in_indentation]
git ls-files \
| pcregrep -vf .x-sc_TAB_in_indentation \
| xargs pcregrep -l '^ *\t' \
| xargs perl -MText::Tabs -ni -le \
'$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'
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* cfg.mk (disable_temporarily): Remove sc_const_long_option.
* daemon/guestfsd.c (main): Declare long_options to be "const".
* fish/fish.c (main): Likewise.
* test-tool/test-tool.c (main): Likewise.
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%Q => simple shell quoted string
%R => path will be prefixed by /sysroot
eg. snprintf (cmd, sizeof cmd, "cat %R", path); system (cmd);
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Currently /sysroot is hard-coded throughout the daemon code.
This patch turns the path into a variable so that we can change
it in future, for example to allow standalone mode to be implemented.
This patch was tested by running all the C API tests successfully.
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* daemon/guestfsd.c (commandrv): Free original buffer (rather
than leaking it) if realloc fails.
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Because udev operates asynchronously, we found errors which were
caused by a previous command (eg. sfdisk or pvremove) creating
or removing a device, and that change not having happened by the
time the next command was run.
This patch adds calls to '/sbin/udevadm settle' after any commands
which can add or remove device nodes.
If udev is not being used or not available, this should have no
effect. The command fails and this is silently ignored.
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virtio_blk is the fast, virt-native block device driver
supported by qemu and KVM. Note that virtio_blk device
names are called /dev/vd*.
Existing scripts should continue working because device name
translation will silently change device names of the form
/dev/sd* to /dev/vd* as required.
See also:
http://libguestfs.org/guestfs.3.html#block_device_naming
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- make sure SIGPIPE doesn't kill us
- warn not to use macros in FileIn functions
- add shell_quote function
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- implement 'll' command.
- outlines for 'ls' and 'cat' commands.
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