From fb87ee96d7dd0714d52004e4676629f8d9db732f Mon Sep 17 00:00:00 2001 From: "Vladimir A. Nazarenko" Date: Tue, 6 Jan 2015 19:19:44 -0800 Subject: Fix incorrect mount table entry parsing in __getmntent_r When mount entry contains only four fields and have more then one space or tab at the and, mp.mnt_freq and mp.mnt_passno will be set to some specific values as side effect from parsing of previus mount entry. It is because sscanf(""," %d %d ", &a, &b) returns -1, but this case is unprocessed. Values of mp.mnt_freq and mp.mnt_passno stays unchanged. This patch is attempt to fix described issue by removing trailing tabs and spaces. --- misc/mntent_r.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'misc/mntent_r.c') diff --git a/misc/mntent_r.c b/misc/mntent_r.c index 152a9a2ea5..615987347a 100644 --- a/misc/mntent_r.c +++ b/misc/mntent_r.c @@ -135,7 +135,11 @@ __getmntent_r (FILE *stream, struct mntent *mp, char *buffer, int bufsiz) end_ptr = strchr (buffer, '\n'); if (end_ptr != NULL) /* chop newline */ - *end_ptr = '\0'; + { + while (end_ptr[-1] == ' ' || end_ptr[-1] == '\t') + end_ptr--; + *end_ptr = '\0'; + } else { /* Not the whole line was read. Do it now but forget it. */ -- cgit v1.2.3