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-rw-r--r--git-compat-util.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index 1229c8296b..876907b9df 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -197,6 +197,12 @@
#endif
#include <windows.h>
#define GIT_WINDOWS_NATIVE
+#ifdef HAVE_RTLGENRANDOM
+/* This is required to get access to RtlGenRandom. */
+#define SystemFunction036 NTAPI SystemFunction036
+#include <NTSecAPI.h>
+#undef SystemFunction036
+#endif
#endif
#include <unistd.h>
@@ -267,6 +273,12 @@
#else
#include <stdint.h>
#endif
+#ifdef HAVE_ARC4RANDOM_LIBBSD
+#include <bsd/stdlib.h>
+#endif
+#ifdef HAVE_GETRANDOM
+#include <sys/random.h>
+#endif
#ifdef NO_INTPTR_T
/*
* On I16LP32, ILP32 and LP64 "long" is the safe bet, however
@@ -1386,6 +1398,18 @@ void unleak_memory(const void *ptr, size_t len);
#define UNLEAK(var) do {} while (0)
#endif
+#define z_const
+#include <zlib.h>
+
+#if ZLIB_VERNUM < 0x1290
+/*
+ * This is uncompress2, which is only available in zlib >= 1.2.9
+ * (released as of early 2017). See compat/zlib-uncompress2.c.
+ */
+int uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source,
+ uLong *sourceLen);
+#endif
+
/*
* This include must come after system headers, since it introduces macros that
* replace system names.
@@ -1432,4 +1456,11 @@ static inline void *container_of_or_null_offset(void *ptr, size_t offset)
void sleep_millisec(int millisec);
+/*
+ * 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.
+ */
+int csprng_bytes(void *buf, size_t len);
+
#endif