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dd(1): Use a local swapbytes() function.

Description

dd(1): Use a local swapbytes() function.

swab(3) has restrict qualifiers for src and dst.
Avoid relying on undefined overlapping swab behavior.

Obtained From: OpenBSD

Details

Provenance
eadlerAuthored on
Parents
rS328426: Refactoring of reading and writing of the UFS/FFS superblock.
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