From 5a9b2518be0572cd530e80de9c2699b9392a4bf1 Mon Sep 17 00:00:00 2001
From: Mike Barnes <mike@bremensaki.com>
Date: Sat, 29 Jan 2022 16:14:37 +1100
Subject: [PATCH] Allow dropping privs on platforms without setresuid()

---
 main.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 3b745d5..d958c77 100644
--- a/main.c
+++ b/main.c
@@ -20,7 +20,7 @@
 #include "opts.h"
 #include "utils.h"
 
-/* lenght of "gemini://" */
+/* length of "gemini://" */
 #define GEMINI_PART	 9
 
 /*
@@ -121,12 +121,21 @@ drop_privileges(const char *user, const char *path)
 		chrooted = 1;
 		echdir("/");
 		/* drop privileges */
+#if defined (__OpenBSD__) || defined(__FreeBSD__)
 		if (setgroups(1, &pw->pw_gid) ||
 		    setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) ||
 		    setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) {
 			errlog("dropping privileges to user %s (uid=%i) failed",
 			       user, pw->pw_uid);
 		}
+#else
+		if (setgroups(1, &pw->pw_gid) ||
+		    setgid(pw->pw_gid) ||
+		    setuid(pw->pw_uid)) {
+			errlog("dropping privileges to user %s (uid=%i) failed",
+			       user, pw->pw_uid);
+		}
+#endif
 	}
 #ifdef __OpenBSD__
 	/*