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btrfs-progs: do not send stream into a terminal

Message ID 1351178877-10188-1-git-send-email-dsterba@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

David Sterba Oct. 25, 2012, 3:27 p.m. UTC 
Signed-off-by: David Sterba <dsterba@suse.cz>
---
 cmds-send.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
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Patch

diff --git a/cmds-send.c b/cmds-send.c
index 9b47e70..e37f5d2 100644
--- a/cmds-send.c
+++ b/cmds-send.c
@@ -427,6 +427,11 @@  int cmd_send_start(int argc, char **argv)
 	memset(&send, 0, sizeof(send));
 	send.dump_fd = fileno(stdout);
 
+	if (isatty(send.dump_fd)) {
+		fprintf(stderr, "ERROR: not dumping send stream into a terminal, redirect it into a file\n");
+		return 1;
+	}
+
 	while ((c = getopt(argc, argv, "vf:i:p:")) != -1) {
 		switch (c) {
 		case 'v':