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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2017-07-03 13:40:18 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2017-07-03 13:40:18 +0000 |
| commit | dcf99dab6ac9d82bc6581c4ea0ea85bc4a98736e (patch) | |
| tree | a762d2223de02519b8eed859c376b841ef562f1e /mandoc.c | |
| parent | ec4aa33aa49344c12ff324f27bb68a147a21623e (diff) | |
| download | mandoc-dcf99dab6ac9d82bc6581c4ea0ea85bc4a98736e.tar.gz mandoc-dcf99dab6ac9d82bc6581c4ea0ea85bc4a98736e.tar.zst mandoc-dcf99dab6ac9d82bc6581c4ea0ea85bc4a98736e.zip | |
warn about time machines; suggested by Thomas Klausner <wiz @ NetBSD>
Diffstat (limited to 'mandoc.c')
| -rw-r--r-- | mandoc.c | 14 |
1 files changed, 11 insertions, 3 deletions
@@ -1,4 +1,4 @@ -/* $Id: mandoc.c,v 1.102 2017/06/14 01:31:26 schwarze Exp $ */ +/* $Id: mandoc.c,v 1.103 2017/07/03 13:40:19 schwarze Exp $ */ /* * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org> @@ -523,6 +523,7 @@ fail: char * mandoc_normdate(struct roff_man *man, char *in, int ln, int pos) { + char *cp; time_t t; /* No date specified: use today's date. */ @@ -535,13 +536,20 @@ mandoc_normdate(struct roff_man *man, char *in, int ln, int pos) /* Valid mdoc(7) date format. */ if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) || - a2time(&t, "%b %d, %Y", in)) - return time2a(t); + a2time(&t, "%b %d, %Y", in)) { + cp = time2a(t); + if (t > time(NULL) + 86400) + mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, + ln, pos, cp); + return cp; + } /* In man(7), do not warn about the legacy format. */ if (a2time(&t, "%Y-%m-%d", in) == 0) mandoc_msg(MANDOCERR_DATE_BAD, man->parse, ln, pos, in); + else if (t > time(NULL) + 86400) + mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, ln, pos, in); else if (man->macroset == MACROSET_MDOC) mandoc_vmsg(MANDOCERR_DATE_LEGACY, man->parse, ln, pos, "Dd %s", in); |