sfeed: add -v flag to display program version

2 files changed, 12 insertions, 3 deletions

diff --git a/sfeed.1 b/sfeed.1
index f641b83..edf5676 100644
--- a/sfeed.1
+++ b/sfeed.1
@@ -5,12 +5,16 @@
 .Nm sfeed
 .Nd simple RSS and Atom parser
 .Sh SYNOPSIS
-.Nm sfeed
-.Op Ar suffix string
+.Nm
+.Op Ar suffix string | Fl Ar v
 .Sh DESCRIPTION
 .Nm
 reads RSS or Atom feed data (XML) from stdin. It writes the feed data in a
 tab-separated format to stdout.
+.Sh OPTIONS
+.Bl -tag -width 17n
+.It Fl v
+show program version
 .Sh TAB-SEPARATED FORMAT FIELDS
 .Pp
 The items are saved in a TSV-like format except newlines, tabs and
diff --git a/sfeed.c b/sfeed.c
index 39b8a04..0d334ff 100644
--- a/sfeed.c
+++ b/sfeed.c
@@ -727,8 +727,13 @@ xml_handler_end_element(XMLParser *p, const char *name, size_t namelen, int issh
 int
 main(int argc, char *argv[])
 {
-	if(argc > 1)
+	if(argc > 1) {
 		append = argv[1];
+		if(!strcmp(argv[1], "-v")) {
+			printf("%s\n", VERSION);
+			return 0;
+		}
+	}
 
 	/* init strings and initial memory pool size */
 	string_buffer_init(&ctx.item.timestamp, 64);