nano

commit 6bd5dce9543202cfc05a4f9db645da52fbbceb3f
parent f25059c24455a78d3246b5c125b662e9824c23b8
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Thu, 30 Jan 2020 20:00:17 +0100

tweaks: ensure that editor name and user name are NUL terminated

When copying those pieces from a lock file, it is not certain that
they end with a NUL character.

Diffstat:
M
src/files.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/files.c b/src/files.c
@@ -342,9 +342,11 @@ int do_lockfile(const char *filename, bool ask_the_user)
 		}
 
 		strncpy(lockprog, &lockbuf[2], 10);
+		lockprog[10] = '\0';
 		lockpid = (((unsigned char)lockbuf[27] * 256 + (unsigned char)lockbuf[26]) * 256 +
 						(unsigned char)lockbuf[25]) * 256 + (unsigned char)lockbuf[24];
 		strncpy(lockuser, &lockbuf[28], 16);
+		lockuser[16] = '\0';
 		free(lockbuf);
 
 		pidstring = charalloc(11);