diff options
| -rw-r--r-- | bin/systrace/alias.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/bin/systrace/alias.c b/bin/systrace/alias.c index 5821cb64fe3..2b48ee0138e 100644 --- a/bin/systrace/alias.c +++ b/bin/systrace/alias.c @@ -1,4 +1,4 @@ -/* $OpenBSD: alias.c,v 1.3 2002/07/30 05:52:50 itojun Exp $ */ +/* $OpenBSD: alias.c,v 1.4 2002/07/30 05:55:08 itojun Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> * All rights reserved. @@ -132,7 +132,9 @@ systrace_reverse(const char *emulation, const char *name) TAILQ_INIT(&reverse->revl); - SPLAY_INSERT(revtr, &revroot, reverse); + if (SPLAY_INSERT(revtr, &revroot, reverse) != NULL) + errx(1, "%s: %s-%s: double revalias", + __func__, emulation, name); return (reverse); } @@ -154,7 +156,8 @@ systrace_new_alias(const char *emulation, const char *name, strlcpy(alias->aname, aname, sizeof(alias->aname)); alias->nargs = 0; - SPLAY_INSERT(alitr, &aliasroot, alias); + if (SPLAY_INSERT(alitr, &aliasroot, alias) != NULL) + errx(1, "%s: %s-%s: double alias", __func__, emulation, name); reverse = systrace_reverse(aemul, aname); alias->reverse = reverse; |