[parted-devel] FYI: don't write into line[-1] when line starts with a NUL byte.

[Jim Meyering]

I've pushed this, too:

	Don't write into line[-1] when line starts with a NUL byte.
	* parted/ui.c (_readline): Check strlen first.

Signed-off-by: Jim Meyering <meyering at redhat.com>
---
 parted/ui.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/parted/ui.c b/parted/ui.c
index 370c2be..d9ab107 100644
--- a/parted/ui.c
+++ b/parted/ui.c
@@ -572,7 +572,9 @@ _readline (const char* prompt, const StrList* possibilities)
                         fputs (line, stdout);
                         fflush (stdout);
 #endif
-                        line [strlen (line) - 1] = 0;    /* kill trailing CR */
+                        /* kill trailing NL */
+                        if (strlen (line))
+                                line [strlen (line) - 1] = 0;
                 } else {
                         free (line);
                         line = NULL;
--
1.5.4.8.g2b39