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Signed-off-by: Karel Zak <kzak@redhat.com>
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Add device geometry to the fdisk API. While it maintains traditional behaviour, the cylinders
are changed to sector_t instead of unsigned int in order to avoid dealing with truncated cylinders.
A new helper is added to compute the amount of cylinders based on the heads and sectors - if a user passed
-H or -S to the program, it must call this function to update the corresponding values.
This patch passes regression tests.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
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This patch adds device topology discovery to the internal API. This
functionality is static only to the API and therefore hidden from general fdisk
code. Functionality itself doesn't really change, min_io_size, io_size, logical
and physical sector sizes and alignment offset are added to the fdisk_context
structure and elements are accessed from there. The logical sector size
(sector_size) is now unsigned long instead of unsigned int, this as no effect
otherwise.
A few things to notice:
- The patch is larger than I wanted but we need to modify function parameters
across fdisk and its labels to use the topology data from cxt-> instances.
Hopefully this will be pretty much it regarding this kind of modifications -
perhaps geometry will need something of the like too.
- The -b option must override internal discovery.
- A new helper function has added to verify if the device provides topology
information, this replaces the 'has_topology' global variable.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
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This program heavily uses global variables, which isn't very elegant and can
lead to nasty bugs. Modify functions that use fdisk's context current features
(descriptor and path), to receive the context as a parameter instead of
globally. This includes DOS, SUN, SGI and BSD label code. Another benefit that
comes with this is that as the API grows all the information regarding fdisk
will be accessible from this structure so we can reduce even more global
variables and simply code.
This patch passed:
- building
- regression tests
- local dos/sun/bsd partition changes
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
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This is the first patch that adds the initial parts of the new fdisk internal
API. Two functions are created to both init and deinit the fdisk context. Only
the device's descriptor and path are added as a start and these are replaced
throughout fdisk.c and label specific code.
All logic that opens the file does it with fdisk_new_context_from_filename(),
and this enforces always opening the device with rw, then, if unsuccesfull,
with read-only. This changes the current logic that opens the device with
certain permissions depending on the user given options. For example, -l opens
the device read-only.
This patch passed regression tests and local modifications for sgi/dos/sun disk
labels.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
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DOS and SGI label menus are unchanged. BSD label command
descriptions change slightly to use a common form.
This also removes an useless menu entry in SUN label menu to
edit bsd disklabel.
Signed-off-by: Francesco Cosoleto <cosoleto@gmail.com>
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Signed-off-by: Francesco Cosoleto <cosoleto@gmail.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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u_long, etc.
Signed-off-by: Josiah Worcester <josiahw@gmail.com>
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after
Do you really want to quit? n
the read_chars() has to re-print the original prompt and ask again
for new input. For example:
Partition number (1-4, default 3): <-- CTRL-D
Do you really want to quit? n
Partition number (1-4, default 3): 3 <-- ask again
First sector (411648-1023999, default 411648):
Signed-off-by: Karel Zak <kzak@redhat.com>
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Work on this was done in commit c0f19ccff73aa0ec5e9f3b61b932ea4a8bf4e6ed,
however a couple of bzero call sites were missed
Signed-off-by: Jon Ringle <jon@ringle.org>
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Those became unused with the switch to the blkdev functions.
Signed-off-by: Guillem Jover <guillem@hadrons.org>
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Those 4 functions are marked as LEGACY in POSIX.1-2001 and removed in
POSIX.1-2008.
Replaced with memmove,memset,strchr and strrchr.
Signed-off-by: Daniel Mierswa <impulze@impulze.org>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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