Add support for using the CDROM env var for device to use;

PR: 38178

2 files changed, 14 insertions, 1 deletions

diff --git a/usr.sbin/burncd/burncd.8 b/usr.sbin/burncd/burncd.8
index aebbe32..8cd6e79 100644
--- a/usr.sbin/burncd/burncd.8
+++ b/usr.sbin/burncd/burncd.8
@@ -181,6 +181,16 @@ available in the
 .Fx
 Ports Collection, is commonly used to create ISO9660 file system images
 from a given directory tree.
+.Sh ENVIRONMENT
+The following environment variables affect the execution of
+.Nm :
+.Pp
+.Bl -tag -width CD_DRIVE -compact
+.It Ev CDROM  
+The cd device to use if one isn't specified with the
+.Fl f
+flag.
+
 .Sh BUGS
 Probably, please report when found.
 .Sh HISTORY
diff --git a/usr.sbin/burncd/burncd.c b/usr.sbin/burncd/burncd.c
index eba6bc6..95a681c 100644
--- a/usr.sbin/burncd/burncd.c
+++ b/usr.sbin/burncd/burncd.c
@@ -76,7 +76,10 @@ main(int argc, char **argv)
 	int dao = 0, eject = 0, fixate = 0, list = 0, multi = 0, preemp = 0;
 	int nogap = 0, speed = 4 * 177, test_write = 0, force = 0;
 	int block_size = 0, block_type = 0, cdopen = 0, dvdrw = 0;
-	const char *dev = "/dev/acd0c";
+	const char *dev;
+
+	if ((dev = getenv("CDROM")) == NULL)
+		dev = "/dev/acd0";
 
 	while ((ch = getopt(argc, argv, "def:Flmnpqs:tv")) != -1) {
 		switch (ch) {