2598e25fb6
XFS, and possibly other filesystems expect that the CRC field is excluded (or rather RAZ) during the CRC operation. Lets create a generic helper that is similar to the CRC32 version ul_crc32_exclude_offset() which computes the CRC while replacing exclude_len bytes of exclude_off with zeros. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
17 lines
426 B
C
17 lines
426 B
C
/*
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* No copyright is claimed. This code is in the public domain; do with it what
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* you wish.
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*/
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#ifndef UL_CRC32C_H
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#define UL_CRC32C_H
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#include <sys/types.h>
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#include <stdint.h>
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extern uint32_t crc32c(uint32_t crc, const void *buf, size_t size);
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extern uint32_t ul_crc32c_exclude_offset(uint32_t crc, const unsigned char *buf,
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size_t size, size_t exclude_off,
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size_t exclude_len);
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#endif /* UL_CRC32C_H */
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