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authorKristaps Dzonsons <kristaps@bsd.lv>2011-04-04 15:45:12 +0000
committerKristaps Dzonsons <kristaps@bsd.lv>2011-04-04 15:45:12 +0000
commita8559d4053327df0d5b00c41247ee89fd1c4dbe3 (patch)
treed2cf4ff84c3d270826d3aee457fefa142d126d3d
parenta97a36dac2b13152973ff3eec896b68c0e2512dc (diff)
downloadmandoc-a8559d4053327df0d5b00c41247ee89fd1c4dbe3.tar.gz
Fix possible segfaults in `Lk' -T[x]html handler, which made some
assumptions about its children. Also remove superfluous reassignment to local variable.
-rw-r--r--Makefile2
-rw-r--r--mdoc_html.c20
2 files changed, 12 insertions, 10 deletions
diff --git a/Makefile b/Makefile
index 96c619c9..00557257 100644
--- a/Makefile
+++ b/Makefile
@@ -317,7 +317,7 @@ mandoc: $(MANDOC_OBJS) libmandoc.a
# You'll need -ldb for Linux.
mandoc-db: $(MANDOCDB_OBJS) libmandoc.a
- $(CC) -o $@ $(MANDOCDB_OBJS) libmandoc.a
+ $(CC) -o $@ $(MANDOCDB_OBJS) libmandoc.a -ldb
llib-lmandoc.ln: $(MANDOC_LNS)
$(LINT) $(LINTFLAGS) -Cmandoc $(MANDOC_LNS)
diff --git a/mdoc_html.c b/mdoc_html.c
index 8812c02a..10c9a942 100644
--- a/mdoc_html.c
+++ b/mdoc_html.c
@@ -1603,20 +1603,22 @@ mdoc_sp_pre(MDOC_ARGS)
static int
mdoc_lk_pre(MDOC_ARGS)
{
- const struct mdoc_node *nn;
- struct htmlpair tag[2];
+ struct htmlpair tag[2];
+
+ if (NULL == (n = n->child))
+ return(0);
- nn = n->child;
+ assert(MDOC_TEXT == n->type);
PAIR_CLASS_INIT(&tag[0], "link-ext");
- PAIR_HREF_INIT(&tag[1], nn->string);
- print_otag(h, TAG_A, 2, tag);
+ PAIR_HREF_INIT(&tag[1], n->string);
- if (NULL == nn || NULL == nn->next)
- return(1);
+ print_otag(h, TAG_A, 2, tag);
- for (nn = nn->next; nn; nn = nn->next)
- print_text(h, nn->string);
+ for (n = n->next; n; n = n->next) {
+ assert(MDOC_TEXT == n->type);
+ print_text(h, n->string);
+ }
return(0);
}