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In order to trigger a continuous read, the user needs to request more
than one data page. So far the tool would split the length into page
chunks. This is no longer the case when the -C option is passed (-c is
already used for the canonical output style).
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Using bs when skipping the bad sector is abusive as what we want is
using the size of a block and the size of a page. The fact that bs
currently is the size of a page is misleading here, has I intend to make
this amount grow.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The read buffer size happen to be as big as the bs variable, but this is
going to change. When accessing the buffer size, use a specific variable
instead.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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When writing a full 4GiB NAND to a file end_addr becomes 0x100000000.
With that writing out the first page to the file doesn't happen
because size_left is calculated to 0x100000000 - 0 = 0x100000000
which is then truncated to 32bit and becomes zero. Fix this by
using an appropriate 64bit type for size_left.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Some temporary buffers are allocated with "sizeof(pointer) * count" as
size argument, which cannot possibly be correct.
Assuming what was meant was "sizeof(pointer[0]) * count" makes sense
in the context of how the buffers are used, but is actually pretty
pointless, since the buffers are unsigend char.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Many tools open a file descriptor, close it a the end and have some
form of error path in between that jumps to the end.
In some cases, if opening the file fails the error path is taken and
the utility ends up closing one or more invalid file descriptors. It's
technically not a real issue but something that pretty much any static
analysis tool barks at.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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For some command line flags, the argument string is copied. Simply
writing over the buffer leads to a resource leak if the same flag
is specified on the command line more than once.
This patch adds a free() call to the old buffer before overwriting
it with the new copy.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Now that C++17 introduced a special fallthrough keyword for
explicitly tagging switch cases that are supposed to fall
through, newer gcc versions also implement a feature request
from 2002 to warn about maybe unwanted fall-throughs in switch
cases in other languages (like C).
For C code, we can either add a gcc specific attribute at the
end of the switch case, or use a special comment that gcc checks
for, indicating that the fall-through behaviour is indeed
intended.
This patch adds a "/* fall-through */" comment at the end of
various case blocks to silence gcc warnings and in some cases
a break, where fall-through was probably not intended.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The --skip-bad-blocks-to-start option will increase the start address by
the size of each bad block encountered between the start of the partition
and the specified start address.
This can be useful if other readers of the partition will be reading using
a simple bad-block-skipping algorithm.
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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When a program does sophisticated enough command line processing
(i.e. getopt), make sure it responds to -V and --version.
When a program prints a version string, make sure it uses the
common_print_version macro to print out its name, that it is part
of mtd-utils and the mtd-utils version from the build system in a
fashion similar to common program packages like the GNU coreutils.
When a program responds to -V/--version or -h/--help, make sure it
reports success exit status.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Errors may happen, it's e.g. easy on embedded devices to run out of space
when dumping big partitions. This patch adds a helper function for
writing. It deals with partial writes and just returns 0 on success or
error number.
The old code didn't check for errors at all which could result in
incomplete dumps without exiting with an error.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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nanddump was always writing a whole page of data into the output
discarding the length actually requested. This patch allows to
write only the remaining length if oob is omitted. In case oob
is needed, it makes sense to copy the entire page.
Signed-off-by: Richard Weinberger <richard@nod.at>
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* There is no code modification in this commit, only moving
* the files to proper place.
The user tools looks a little messy as we place almost
the all tools in the root directory of mtd-utils. To make
it more clear, I propose to introduce the following structure
for our source code.
mtd-utils/
|-- lib
|-- include
|-- misc-utils
|-- jffsX-utils
|-- nand-utils
|-- nor-utils
|-- ubi-utils
|-- ubifs-utils
`-- tests
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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