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authorDarren Tucker <dtucker@cvs.openbsd.org>2009-12-06 23:53:55 +0000
committerDarren Tucker <dtucker@cvs.openbsd.org>2009-12-06 23:53:55 +0000
commit6d262f975b7e28d7b49723dfd00cbb96963b8943 (patch)
tree97fd221217e0cd077f35f837f2413b6a502e03d2
parent4a7c0db23d09a80292aa581290303be693bc610b (diff)
fix potential divide-by-zero in sftp's "df" output when talking to a server
that reports zero files on the filesystem (Unix filesystems always have at least the root inode). From Steve McClellan at radisys, ok djm@
-rw-r--r--usr.bin/ssh/sftp.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/usr.bin/ssh/sftp.c b/usr.bin/ssh/sftp.c
index 1bc68bfc678..d572fb168c6 100644
--- a/usr.bin/ssh/sftp.c
+++ b/usr.bin/ssh/sftp.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sftp.c,v 1.113 2009/11/22 13:18:00 halex Exp $ */
+/* $OpenBSD: sftp.c,v 1.114 2009/12/06 23:53:54 dtucker Exp $ */
/*
* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
*
@@ -823,19 +823,19 @@ do_df(struct sftp_conn *conn, char *path, int hflag, int iflag)
char s_avail[FMT_SCALED_STRSIZE];
char s_root[FMT_SCALED_STRSIZE];
char s_total[FMT_SCALED_STRSIZE];
+ unsigned long long ffree;
if (do_statvfs(conn, path, &st, 1) == -1)
return -1;
if (iflag) {
+ ffree = st.f_files ? (100 * (st.f_files - st.f_ffree) / st.f_files) : 0;
printf(" Inodes Used Avail "
"(root) %%Capacity\n");
printf("%11llu %11llu %11llu %11llu %3llu%%\n",
(unsigned long long)st.f_files,
(unsigned long long)(st.f_files - st.f_ffree),
(unsigned long long)st.f_favail,
- (unsigned long long)st.f_ffree,
- (unsigned long long)(100 * (st.f_files - st.f_ffree) /
- st.f_files));
+ (unsigned long long)st.f_ffree, ffree);
} else if (hflag) {
strlcpy(s_used, "error", sizeof(s_used));
strlcpy(s_avail, "error", sizeof(s_avail));