diff options
| author |   schwarze <schwarze@openbsd.org> | 2018-08-16 15:04:45 +0000 |
|---|---|---|
| committer | schwarze <schwarze@openbsd.org> | 2018-08-16 15:04:45 +0000 |
| commit | b3f54129b83e153bde2b769c0f1d2e2e774cc153 (patch) | |
| tree | cecccf7326feda1600848c0bdf53ebe90df92dbf /usr.bin/mandoc/mdoc_validate.c | |
| parent | Add the KEYC_XTERM flag to all function keys that imply a modifier so (diff) | |
| download | wireguard-openbsd-b3f54129b83e153bde2b769c0f1d2e2e774cc153.tar.xz wireguard-openbsd-b3f54129b83e153bde2b769c0f1d2e2e774cc153.zip | |
Do not calculate a pointer to a memory location before the beginning of
a static array. Christos Zoulas, Robert Elz, and Andreas Gustafsson
point out that is undefined behaviour by the C standard even if we
never access the pointer.
Diffstat (limited to 'usr.bin/mandoc/mdoc_validate.c')
| -rw-r--r-- | usr.bin/mandoc/mdoc_validate.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/usr.bin/mandoc/mdoc_validate.c b/usr.bin/mandoc/mdoc_validate.c index cbc6282d2eb..03a5c038db1 100644 --- a/usr.bin/mandoc/mdoc_validate.c +++ b/usr.bin/mandoc/mdoc_validate.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mdoc_validate.c,v 1.275 2018/08/01 16:00:54 schwarze Exp $ */ +/* $OpenBSD: mdoc_validate.c,v 1.276 2018/08/16 15:04:45 schwarze Exp $ */ /* * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2010-2018 Ingo Schwarze <schwarze@openbsd.org> @@ -114,7 +114,7 @@ static void post_useless(POST_ARGS); static void post_xr(POST_ARGS); static void post_xx(POST_ARGS); -static const v_post __mdoc_valids[MDOC_MAX - MDOC_Dd] = { +static const v_post mdoc_valids[MDOC_MAX - MDOC_Dd] = { post_dd, /* Dd */ post_dt, /* Dt */ post_os, /* Os */ @@ -236,7 +236,6 @@ static const v_post __mdoc_valids[MDOC_MAX - MDOC_Dd] = { NULL, /* %U */ NULL, /* Ta */ }; -static const v_post *const mdoc_valids = __mdoc_valids - MDOC_Dd; #define RSORD_MAX 14 /* Number of `Rs' blocks. */ @@ -355,7 +354,7 @@ mdoc_node_validate(struct roff_man *mdoc) } assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX); - p = mdoc_valids + n->tok; + p = mdoc_valids + (n->tok - MDOC_Dd); if (*p) (*p)(mdoc); if (mdoc->last == n) |