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This avoids three build warnings when preprocessing happens before compiling
with gcc >= 7.
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Similar to the sample fetch keywords, let's also list the converter
keywords. They're much simpler since there's no compatibility matrix.
Instead the input and output types are listed. This is called by
dump_registered_keywords() for the "cnv" keywords class.
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New function smp_dump_fetch_kw lists registered sample fetch keywords
with their compatibility matrix, mandatory and optional argument types,
and output types. It's called from dump_registered_keywords() with class
"smp".
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We're using variable-to-sample conversion at least 4 times in the code,
two of which are bogus. Let's introduce a generic conversion function
that performs the required checks.
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There's no reason to limit this one to this file, it could be used in
other contexts.
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This one only handles integers, contrary to its sibling with the suffix
_str that only handles strings. Let's rename it and uninline it since it
may well be used from outside.
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For now smp_resolve_args() complains on stderr via ha_alert(), but if we
want to make it a bit more dynamic, we need it to return errors in an
allocated message. Let's pass it an error pointer and have it fill it.
On return we indent the output if it contains more than one line.
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smp_is_safe() function is used to be sure a sample may be safely
modified. For string samples, a test is performed to verify if there is a
null-terminated byte. If not, one is added, if possible. It means if the
sample is not const and if there is some free space in the buffer, after
data. However, we must not try to read the null-terminated byte if the
string sample is too long (data >= size) or if the size is equal to
zero. This last test was not performed. Thus it was possible to consider a
string sample as safe by testing a byte outside the buffer.
Now, a zero size string sample is always considered as unsafe and is
duplicated when smp_make_safe() is called.
This patch must be backported in all stable versions.
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This patch fixes all the leftovers from the include cleanup campaign. There
were not that many (~400 entries in ~150 files) but it was definitely worth
doing it as it revealed a few duplicates.
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The stktable_types[] array declaration was moved to the main file as
it had nothing to do in the types. A few declarations were reordered
in the types file so that defines were before the structs. Thread-t
was added since there are a few __decl_thread(). The loss of peers.h
revealed that cfgparse-listen needed it.
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This one is particularly tricky to move because everyone uses it
and it depends on a lot of other types. For example it cannot include
arg-t.h and must absolutely only rely on forward declarations to avoid
dependency loops between vars -> sample_data -> arg. In order to address
this one, it would be nice to split the sample_data part out of sample.h.
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