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The `value` union member in `struct config_entry` is declared as `int`
since basically the beginning in e07722e46001 ("config stuff added").
The parsing was switched from the original `atoi()` in 015849995f7f
("Fix hexadecimal parsing in config file") to `strtoul()`.
Switch the function for parsing to the signed `strtol()` variant since
the result will be stored in a signed int, and it makes sense to support
negative numbers. Detect when `strtol()` does not properly consume the
whole argument and return a new format error. Also check the numerical
value to make sure the signed int does not overflow, in which case
a new range error is returned.
Unfortunately there is no `strtoi()` which would do the proper range
check itself, so the intermediate `long` and range-check for `int` is
required. I also considered changing the `value` union member from
`int` to `long`, which would make it possible to use the parsed value
as-is. But since this is part of the api towards plugins (including
third party) such a potentially breaking change felt unwarranted. This
also means that still only 16bit integer values are *guaranteed* to
work, although most platforms use bigger widths for int.
Signed-off-by: Corubba Smith <corubba@gmx.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Signed-off-by: Felix Janda <felix.janda@posteo.de>
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When an argument or a line is too long, it can not be store
into ulogd configuration and this must results in a error.
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This patch also update some copyright and licence declaration.
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This patch adds a flag to the config_entry structure to be able to
tune setup. First usage is to ask config parser not to update a key
if it has been already set.
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This patch adds the config_stop function which is in charge of releasing
ressources allocated for configuration file parsing.
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- fix typo in debug message
- now uses arrays of 'struct config_entry' instead of linked list
- introduce 'struct config_kset' to describe array of config_entries
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- added hashtables everywhere
- no more dynamic allocation for each packet
- mysql output plugin
- more keys in ulogd_BASE
- moved libipulog into ulogd directory
- introduced autoconf
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