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

diff --git a/svr-chansession.c b/svr-chansession.c
index 9ae2e60..2db7598 100644
--- a/svr-chansession.c
+++ b/svr-chansession.c
@@ -948,6 +948,8 @@ static void addchildpid(struct ChanSess *chansess, pid_t pid) {
 static void execchild(const void *user_data) {
 	const struct ChanSess *chansess = user_data;
 	char *usershell = NULL;
+	const char *path = (getuid() == 0) ? DEFAULT_ROOT_PATH : DEFAULT_PATH;
+	const char *ldpath = NULL;
 	char *cp = NULL;
 	char *envcp = getenv("LANG");
 	if (envcp != NULL) {
@@ -965,6 +967,11 @@ static void execchild(const void *user_data) {
 	seedrandom();
 #endif
 
+	if (getenv("PATH")) {
+		path = getenv("PATH");
+	}
+	ldpath = getenv("LD_LIBRARY_PATH");
+
 	/* clear environment if -e was not set */
 	/* 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. */
@@ -1012,10 +1019,9 @@ static void execchild(const void *user_data) {
 	addnewvar("LOGNAME", ses.authstate.pw_name);
 	addnewvar("HOME", ses.authstate.pw_dir);
 	addnewvar("SHELL", get_user_shell());
-	if (getuid() == 0) {
-		addnewvar("PATH", DEFAULT_ROOT_PATH);
-	} else {
-		addnewvar("PATH", DEFAULT_PATH);
+	addnewvar("PATH", path);
+	if (ldpath != NULL) {
+		addnewvar("LD_LIBRARY_PATH", ldpath);
 	}
 	if (cp != NULL) {
 		addnewvar("LANG", cp);