From 6cf2f74fe9fc205f4a14fc11fbe53daa7483dd19 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Thu, 29 Nov 2018 10:37:27 +0000
Subject: osdep_get_cwd for NetBSD, from Leonardo Taccari.

---
 osdep-netbsd.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/osdep-netbsd.c b/osdep-netbsd.c
index 823eeebf..daca1abb 100644
--- a/osdep-netbsd.c
+++ b/osdep-netbsd.c
@@ -23,14 +23,17 @@
 
 #include <errno.h>
 #include <event.h>
+#include <limits.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+#include "tmux.h"
+
 #define is_runnable(p) \
-        ((p)->p_stat == LSRUN || (p)->p_stat == SIDL)
+	((p)->p_stat == LSRUN || (p)->p_stat == SIDL)
 #define is_stopped(p) \
-        ((p)->p_stat == SSTOP || (p)->p_stat == SZOMB)
+	((p)->p_stat == SSTOP || (p)->p_stat == SZOMB)
 
 struct kinfo_proc2	*cmp_procs(struct kinfo_proc2 *, struct kinfo_proc2 *);
 char			*osdep_get_name(int, char *);
@@ -129,6 +132,22 @@ error:
 char *
 osdep_get_cwd(int fd)
 {
+	static char	target[PATH_MAX + 1];
+	char		*path;
+	pid_t		pgrp;
+	ssize_t		n;
+
+	if ((pgrp = tcgetpgrp(fd)) == -1)
+		return (NULL);
+
+	xasprintf(&path, "/proc/%lld/cwd", (long long) pgrp);
+	n = readlink(path, target, sizeof(target) - 1);
+	free(path);
+	if (n > 0) {
+		target[n] = '\0';
+		return (target);
+	}
+
 	return (NULL);
 }
 
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