1 files changed, 29 insertions, 0 deletions
diff --git a/src/sysdeps/trysopeercred.c b/src/sysdeps/trysopeercred.c
new file mode 100644
index 0000000..0356fcf
--- /dev/null
+++ b/src/sysdeps/trysopeercred.c
@@ -0,0 +1,29 @@
+/* ISC license. */
+
+#undef _POSIX_C_SOURCE
+#undef _XOPEN_SOURCE
+
+#ifndef _XPG4_2
+# define _XPG4_2
+#endif
+
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+
+#include <sys/types.h>
+
+#if defined(__FreeBSD__)
+# include <sys/param.h>
+#endif
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+int main (void)
+{
+  int s ;
+  struct ucred dummy ;
+  socklen_t len = sizeof(struct ucred) ;
+  return getsockopt(s, SOL_SOCKET, SO_PEERCRED, &dummy, &len) ;
+}