Merge branch 'ps/reftable-get-random-fix'

The code to compute "unique" name used git_rand() which can fail or
get stuck; the callsite does not require cryptographic security.
Introduce the "insecure" mode and use it appropriately.

* ps/reftable-get-random-fix:
  reftable/stack: accept insecure random bytes
  wrapper: allow generating insecure random bytes

1 files changed, 12 insertions, 4 deletions

diff --git a/wrapper.h b/wrapper.h
index a6b3e1f09e..7df824e34a 100644
--- a/wrapper.h
+++ b/wrapper.h
@@ -127,18 +127,26 @@ int open_nofollow(const char *path, int flags);
 
 void sleep_millisec(int millisec);
 
+enum {
+	/*
+	 * Accept insecure bytes, which some CSPRNG implementations may return
+	 * in case the entropy pool has been exhausted.
+	 */
+	CSPRNG_BYTES_INSECURE = (1 << 0),
+};
+
 /*
  * Generate len bytes from the system cryptographically secure PRNG.
  * Returns 0 on success and -1 on error, setting errno.  The inability to
- * satisfy the full request is an error.
+ * satisfy the full request is an error. Accepts CSPRNG flags.
  */
-int csprng_bytes(void *buf, size_t len);
+int csprng_bytes(void *buf, size_t len, unsigned flags);
 
 /*
  * Returns a random uint32_t, uniformly distributed across all possible
- * values.
+ * values. Accepts CSPRNG flags.
  */
-uint32_t git_rand(void);
+uint32_t git_rand(unsigned flags);
 
 /* Provide log2 of the given `size_t`. */
 static inline unsigned log2u(uintmax_t sz)