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The arpa/nameser.h header of musl libc indirectly depends on the endian.h
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header but fails to explicitely include it to properly define
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`__BYTE_ORDER` and `__BIG_ENDIAN` prior to declaring the DNS `HEADER`
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structure.
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When both the appropriate `__BYTE_ORDER` and `__BIG_ENDIAN` defines are
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unset, the `#if __BYTE_ORDER == __BIG_ENDIAN` condition in `nameser.h`
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evaluates to true, causing it to declare a bad (big endian) DNS packet
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header structure on little endian systems.
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Work around this musl bug by forcibly passing `-include endian.h` through
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the `osflags` file.
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An upstream fix for musl libc has been submitted with
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http://www.openwall.com/lists/musl/2017/12/04/3
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|
|
|
--- a/src/osflags
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+++ b/src/osflags
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|
@@ -27,7 +27,7 @@ cflags)
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|
echo '-Dsocklen_t=int';
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|
;;
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|
Linux)
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|
- FLAGS="-D_GNU_SOURCE"
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|
+ FLAGS="-D_GNU_SOURCE -include endian.h"
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|
echo $FLAGS;
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|
;;
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|
esac
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