From bdf01a581d58eb5340e9238d143dbcac9db5b11c Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 30 Jan 2016 19:29:45 +0000
Subject: [PATCH] check for nss.h

nss.h may not available on all libc implementations, e.g. musl does not
have this header, this patch detects nss.h presence and defines the data
types that are required if nss.h is missing on platform

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
Upstream-Status: Pending

 configure.ac |  2 +-
 src/nss.c    | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index aa66bc6..ce19b07 100644
--- a/configure.ac
+++ b/configure.ac
@@ -71,7 +71,7 @@ AC_PROG_LIBTOOL
 
 # Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS([arpa/inet.h fcntl.h inttypes.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h unistd.h nss.h sys/ioctl.h])
+AC_CHECK_HEADERS([arpa/inet.h fcntl.h inttypes.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h unistd.h nss.h sys/ioctl.h nss.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
diff --git a/src/nss.c b/src/nss.c
index e48e315..406733b 100644
--- a/src/nss.c
+++ b/src/nss.c
@@ -29,7 +29,18 @@
 #include <assert.h>
 #include <netdb.h>
 #include <sys/socket.h>
+#ifdef HAVE_NSS_H
 #include <nss.h>
+#else
+enum nss_status {
+    NSS_STATUS_TRYAGAIN = -2,
+    NSS_STATUS_UNAVAIL,
+    NSS_STATUS_NOTFOUND,
+    NSS_STATUS_SUCCESS,
+    NSS_STATUS_RETURN
+};
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 
-- 
2.7.0