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switch_root: use snprintf() rather tan str{cpy,cat}() 

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2009-06-09 16:35:07 +02:00
parent 8b6457d06a
commit 8f24e52ed7
1 changed files with 4 additions and 3 deletions
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7
sys-utils/switch_root.c
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@ -1,7 +1,7 @@
/*
* switchroot.c - switch to new root directory and start init.
*
* Copyright 2002-2008 Red Hat, Inc. All rights reserved.
* Copyright 2002-2009 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -113,8 +113,9 @@ static int switchroot(const char *newroot)
for (i = 0; umounts[i] != NULL; i++) {
char newmount[PATH_MAX];
strcpy(newmount, newroot);
strcat(newmount, umounts[i]);
snprintf(newmount, sizeof(newmount), "%s%s", newroot, umounts[i]);
if (mount(umounts[i], newmount, NULL, MS_MOVE, NULL) < 0) {
warn("failed to mount moving %s to %s",
umounts[i], newmount);