From 9a0980fadf9b7a2a4a9c239f3ae667483ea175da Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 15 Sep 2016 12:01:26 +0000
Subject:  s6-fillurandompool: add workaround for old libcs that don't define
 SYS_getrandom

---
 src/minutils/s6-fillurandompool.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/minutils')

diff --git a/src/minutils/s6-fillurandompool.c b/src/minutils/s6-fillurandompool.c
index 775f289..57cd88c 100644
--- a/src/minutils/s6-fillurandompool.c
+++ b/src/minutils/s6-fillurandompool.c
@@ -5,15 +5,18 @@
 #endif
 
 #include <unistd.h>
+#include <errno.h>
 #include <sys/syscall.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
 
-#define USAGE "s6-fillurandompool"
-
 static int getrandom (void *buf, size_t buflen, unsigned int flags)
 {
+#ifdef SYS_getrandom
   return syscall(SYS_getrandom, buf, buflen, flags) ;
+#else
+  return (errno = ENOSYS, -1) ;
+#endif
 }
 
 int main (void)
-- 
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