license: more changing of licence -> license.

[ccan] / ccan / crc / crc.h

diff --git a/ccan/crc/crc.h b/ccan/crc/crc.h
index 24511993db81ef9c71f4670dcf6f9b3ab7fb6673..6338000e23d937e5628f7a8191ceaf8d2e38a17c 100644 (file)
--- a/ccan/crc/crc.h
+++ b/ccan/crc/crc.h
@@ -29,11 +29,13 @@
  * as 0 the first time, and the current crc result from then on.
  *
  * Example:
+ *     #include <sys/uio.h>
+ *     ...
  *     // Check that iovec has the crc we expect (Castagnoli version)
- *     bool check_crc(uint32_t expected, const struct iovec *iov, int iovcnt)
+ *     static bool check_crc(uint32_t expected, const struct iovec *iov, int l)
  *     {
  *             uint32_t crc = 0;
- *             while (iovcnt >= 0) {
+ *             while (l >= 0) {
  *                     crc = crc32c(crc, iov->iov_base, iov->iov_len);
  *                     iov++;
  *             }
@@ -52,10 +54,10 @@ uint32_t crc32c(uint32_t start_crc, const void *buf, size_t size);
  *
  * Example:
  *     // This dumb code only handles Castagnoli, so assert that here.
- *     void check_user_crc_table(const uint32_t *usertab)
+ *     static void check_user_crc_table(const uint32_t *usertab)
  *     {
  *             const uint32_t *ctab = crc32c_table();
- *             if (!ieee_tab || memcmp(ieee_tab, usertab, 1024) != 0)
+ *             if (!ctab || memcmp(ctab, usertab, 1024) != 0)
  *                     abort();
  *     }
  */
@@ -80,4 +82,25 @@ uint32_t crc32_ieee(uint32_t start_crc, const void *buf, size_t size);
  * See crc32c_table() for details.
  */
 const uint32_t *crc32_ieee_table(void);
+
+/**
+ * crc64_iso - ISO 3309
+ * @start_crc: the initial crc (usually 0)
+ * @buf: pointer to bytes
+ * @size: length of buffer
+ *
+ * 64 bit CRC checksum using polynomial
+ * X^64 + X^4 + X^3 + X^1 + X^0
+ *
+ * See crc32c() for details.
+ */
+uint64_t crc64_iso(uint64_t start_crc, const void *buf, size_t size);
+
+/**
+ * crc64_iso_table - Get the ISO 3309 CRC table
+ *
+ * See crc32c_table() for details.
+ */
+const uint64_t *crc64_iso_table(void);
+
 #endif /* CCAN_CRC_H */