From 45b991b31341fac961e4f933cb1d96de62889f7e Mon Sep 17 00:00:00 2001
From: Nathan Holstein <nathan.holstein@gmail.com>
Date: Sun, 9 Aug 2015 21:27:47 -0400
Subject: [PATCH] Add version information to doas executable.

This pulls in the dependency on version.h and adds the -v command line
option to print the version and build information.
---
 Makefile |  2 ++
 doas.c   | 19 +++++++++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 59c4ee7..9e1dbf3 100644
--- a/Makefile
+++ b/Makefile
@@ -15,6 +15,8 @@ LDFLAGS+= -lpam
 
 include bsd.prog.mk
 
+doas.o: version.h
+
 /etc/pam.d/doas: pam.d__doas
 	cp $< $@
 install: /etc/pam.d/doas
diff --git a/doas.c b/doas.c
index f0cbab2..1457925 100644
--- a/doas.c
+++ b/doas.c
@@ -32,11 +32,19 @@
 #include "openbsd.h"
 
 #include "doas.h"
+#include "version.h"
+
+static void __dead
+version(void)
+{
+	fprintf(stderr, "doas: version %s built %s\n", VERSION, __DATE__);
+	exit(1);
+}
 
 static void __dead
 usage(void)
 {
-	fprintf(stderr, "usage: doas [-ns] [-C config] [-u user] command [args]\n");
+	fprintf(stderr, "usage: doas [-nsv] [-C config] [-u user] command [args]\n");
 	exit(1);
 }
 
@@ -330,10 +338,11 @@ main(int argc, char **argv, char **envp)
 	int i, ch;
 	int sflag = 0;
 	int nflag = 0;
+	int vflag = 0;
 
 	uid = getuid();
 
-	while ((ch = getopt(argc, argv, "C:nsu:")) != -1) {
+	while ((ch = getopt(argc, argv, "C:nsu:v")) != -1) {
 		switch (ch) {
 		case 'C':
 			confpath = optarg;
@@ -348,6 +357,9 @@ main(int argc, char **argv, char **envp)
 		case 's':
 			sflag = 1;
 			break;
+		case 'v':
+			vflag = 1;
+			break;
 		default:
 			usage();
 			break;
@@ -356,6 +368,9 @@ main(int argc, char **argv, char **envp)
 	argv += optind;
 	argc -= optind;
 
+	if (vflag)
+		version();
+
 	if (confpath) {
 		if (sflag)
 			usage();
-- 
2.39.2