document options in man page, implement -o.

1 files changed, 3 insertions, 3 deletions

diff --git a/uxd.c b/uxd.c
index f58c24e..3f9d363 100644
--- a/uxd.c
+++ b/uxd.c
@@ -128,10 +128,10 @@ void parse_options(int argc, char **argv) {
 			case 'm':
 				mono = 1; break;
 			case 'o':
-				display_offset = atoi(optarg);
+				display_offset = strtol(optarg, NULL, 0);
 				break;
 			case 's':
-				seekpos = atoi(optarg);
+				seekpos = strtol(optarg, NULL, 0);
 				break;
 			case 'u':
 				uppercase = 1; break;
@@ -227,7 +227,7 @@ void append_left(unsigned char byte, int dash, int fgcolor, int bgcolor) {
 	char tmpbuf[100];
 
 	if(!dump_column)
-		sprintf(left_buf, "%04x: ", filepos);
+		sprintf(left_buf, "%04x: ", filepos + display_offset);
 
 	append_color(left_buf, fgcolor, bgcolor);
 	sprintf(tmpbuf, "%02x", byte);