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      1 #ifndef FIO_SHA1
      2 #define FIO_SHA1
      3 
      4 /*
      5  * Based on the Mozilla SHA1 (see mozilla-sha1/sha1.h),
      6  * optimized to do word accesses rather than byte accesses,
      7  * and to avoid unnecessary copies into the context array.
      8  */
      9 
     10 struct fio_sha1_ctx {
     11 	uint32_t *H;
     12 	unsigned int W[16];
     13 	unsigned long long size;
     14 };
     15 
     16 void fio_sha1_init(struct fio_sha1_ctx *);
     17 void fio_sha1_update(struct fio_sha1_ctx *, const void *dataIn, unsigned long len);
     18 void fio_sha1_final(unsigned char hashout[20], struct fio_sha1_ctx *);
     19 
     20 #endif
     21