nixpkgs/pkgs/tools/networking/dropbear/pass-path.patch

diff --git a/svr-chansession.c b/svr-chansession.c
index e44299e..7ef750a 100644
--- a/svr-chansession.c
+++ b/svr-chansession.c
@@ -893,6 +893,8 @@ static void addchildpid(struct ChanSess *chansess, pid_t pid) {
 static void execchild(void *user_data) {
 	struct ChanSess *chansess = user_data;
 	char *usershell = NULL;
+	const char *path = DEFAULT_PATH;
+	const char *ldpath = NULL;
 
 	/* with uClinux we'll have vfork()ed, so don't want to overwrite the
 	 * hostkey. can't think of a workaround to clear it */
@@ -905,6 +907,10 @@ static void execchild(void *user_data) {
 	seedrandom();
 #endif
 
+	if (getenv("PATH"))
+		path = getenv("PATH");
+	ldpath = getenv("LD_LIBRARY_PATH");
+
 	/* clear environment */
 	/* if we're debugging using valgrind etc, we need to keep the LD_PRELOAD
 	 * etc. This is hazardous, so should only be used for debugging. */
@@ -948,7 +954,10 @@ static void execchild(void *user_data) {
 	addnewvar("LOGNAME", ses.authstate.pw_name);
 	addnewvar("HOME", ses.authstate.pw_dir);
 	addnewvar("SHELL", get_user_shell());
-	addnewvar("PATH", DEFAULT_PATH);
+	addnewvar("PATH", path);
+	if (ldpath != NULL) {
+		addnewvar("LD_LIBRARY_PATH", ldpath);
+	}
 	if (chansess->term != NULL) {
 		addnewvar("TERM", chansess->term);
 	}