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Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Avoid preallocating buffers on the stack, use dynamic memory allocation
instead. Also, change the semantics of new_tempfile() so that it returns
the full name of the temporary file and fix all call sites.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Use asprintf() in some cold code paths. While allocating memory on the
heap is a bit slower, using asprintf() is a bit more memory efficient
and less prone to buffer overflow errors.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Allow for passing an arbitrary number of arguments. This also allows us
to remove wins_launch_external2() and use wins_launch_external() at all
call sites instead.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Fixes GitHub issue #5.
Reported-by: dcb314
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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This completes our switch to the Linux kernel coding style. Note that we
still use deeply nested constructs at some places which need to be fixed
up later.
Converted using the `Lindent` script from the Linux kernel code base,
along with some manual fixes.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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From the Linux kernel coding guidelines:
Do not unnecessarily use braces where a single statement will do.
[...] This does not apply if one branch of a conditional statement
is a single statement. Use braces in both branches.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add 2013 to the copyright range for all source and documentation files.
Reported-by: Frederic Culot <frederic@culot.org>
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Convert our code base to adhere to Linux kernel coding style using
Lindent, with the following exceptions:
* Use spaces, instead of tabs, for indentation.
* Use 2-character indentations (instead of 8 characters).
Rationale: We currently have too much levels of indentation. Using
8-character tabs would make huge code parts unreadable. These need to be
cleaned up before we can switch to 8 characters.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add the "const" keyword to parameters and variables that are never
modified. Most of these were spotted by "-Wwrite-strings".
We cast the second parameter to execvp() explicitly as it expects a
"char *const[]" where it should expect a "const char *const[]"
(according to the documentation, this is due to compatibility reasons).
This should be changed once we come up with a better solution.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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These can be generated dynamically using the HTABLE_PROTOTYPE macro.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Add 2012 to the copyright range for all source and documentation files.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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ISO C99 forbids unnamed structs/unions and nested functions. Move the
"HTABLE_HEAD" and "HTABLE_GENERATE" parts out of the function body and
place them at the very top of the file (where function definitions are
allowed). Also, remove the unnamed struct from "htable.h" (which was
useless anyway).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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The last argument to strncat() should not be the total buffer length; it
should be the space remaining:
The strncat() function shall append not more than n bytes (a null
byte and bytes that follow it are not appended) from the array
pointed to by s2 to the end of the string pointed to by s1. The
initial byte of s2 overwrites the null byte at the end of s1. A
terminating null byte is always appended to the result.
This patch fixes a couple of potential buffer overflow vulnerabilities.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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We currently use this in one place only but might reuse this a couple of
times later (when migrating to libical).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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A small style fix that removes all remaining "(void)" casts. Using these
isn't encouraged in GNU coding guidelines and doesn't serve a certain
purpose, except for satisfying a few static code analysis tools. We
already nuked some of these in previous patches, but this semantic patch
should fix what's left:
@@
identifier func;
@@
- (void)func (
+ func (
...);
Long lines were re-formatted manually.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Now that we use hashes to identify notes, a garbage collector comes in
handy. We search for note files that aren't referenced anywhere. Such
files might come up if a note, that isn't connected with any other item,
is edited.
Huge parts of this code are very hackish due to our data structure
layout and the way our hash table implementation works.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Now that we use hash-based note file names, note files should never be
unlinked as a note file might be shared.
Also, remove the ERASE_FORCE_KEEP_NOTE flag that no longer makes any
sense.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Note file names are now generated based on their content. Items using
the same note will share a single note file.
Please note that this implies a few changes:
* Both random-style and hash-style note files need to be handled to
ensure we do not break backwards compatibility.
* Note files may not be moved or deleted if a note is changed or removed
since the original note file might be used by another item as well.
* A garbage collector to remove unreferenced note files needs to be
implemented.
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Read up to the first blank in note_read() instead of assuming a
fixed-width note file name. Accept everything up to 40 characters (which
is the length of a SHA1 hash in hexadecimal representation).
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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* Add new note_edit() and note_view() helper functions. Use these
instead of copy-pasted code in *_note_edit().
* Move all note-related functions (note_edit(), note_view(),
note_erase()) to a new source file "note.c".
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
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