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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2017-03-17 12:10:16 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2017-03-17 12:10:16 +0000 |
| commit | c419530b09693aaf29ca6cc737b77f6c35089c21 (patch) | |
| tree | a483547cbe3418091a867796ddf51c22b46b3ddc /mdoc_html.c | |
| parent | 2cfc7310afb5b9fc57aba0d72188cc20f947c244 (diff) | |
| download | mandoc-c419530b09693aaf29ca6cc737b77f6c35089c21.tar.gz mandoc-c419530b09693aaf29ca6cc737b77f6c35089c21.tar.zst mandoc-c419530b09693aaf29ca6cc737b77f6c35089c21.zip | |
Fix regression in mdoc_html.c 1.275, man_html 1.134:
For .Sh, .Ss, .SH, .SS, only write selflink if an id could be constructed.
Crash reported by Raf Czlonka <rczlonka at gmail dot com>,
analysis of root cause by natano@
Diffstat (limited to 'mdoc_html.c')
| -rw-r--r-- | mdoc_html.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mdoc_html.c b/mdoc_html.c index 0f71a16b..27ca1a49 100644 --- a/mdoc_html.c +++ b/mdoc_html.c @@ -1,4 +1,4 @@ -/* $Id: mdoc_html.c,v 1.277 2017/03/15 11:29:53 schwarze Exp $ */ +/* $Id: mdoc_html.c,v 1.278 2017/03/17 12:10:16 schwarze Exp $ */ /* * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org> @@ -501,7 +501,8 @@ mdoc_sh_pre(MDOC_ARGS) case ROFFT_HEAD: id = html_make_id(n); print_otag(h, TAG_H1, "cTi", "Sh", id); - print_otag(h, TAG_A, "chR", "selflink", id); + if (id != NULL) + print_otag(h, TAG_A, "chR", "selflink", id); free(id); break; case ROFFT_BODY: @@ -524,7 +525,8 @@ mdoc_ss_pre(MDOC_ARGS) id = html_make_id(n); print_otag(h, TAG_H2, "cTi", "Ss", id); - print_otag(h, TAG_A, "chR", "selflink", id); + if (id != NULL) + print_otag(h, TAG_A, "chR", "selflink", id); free(id); return 1; } |