From 45e0c1c2ef1df9a09d64753600b80cb2c35ec4b8 Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Sat, 8 Feb 2020 16:05:55 +0100
Subject: [PATCH] use the correct index variable when iterating over xref
subsections
---
pdf.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/pdf.c b/pdf.c
index f15bc6c..2e5e321 100644
--- a/pdf.c
+++ b/pdf.c
@@ -657,15 +657,18 @@ init_parser(struct Env *aux)
XREntry *
lookup_xref(struct Env *aux, size_t nr, size_t gen)
{
+ HParsedToken *ss; /* xref subsection */
+ size_t base, n;
+
/* for each cross-reference section (i.e. update) */
for (size_t i = 0; i < aux->nxrefs; i++) {
HCountedArray *subs = H_INDEX_SEQ(aux->xrefs[i], 0);
/* for each cross-reference subsection */
for (size_t j = 0; j < subs->used; j++) {
- HParsedToken *ss = subs->elements[i];
- size_t base = H_INDEX_UINT(ss, 0, 0);
- size_t n = H_INDEX_UINT(ss, 0, 1);
+ ss = subs->elements[j];
+ base = H_INDEX_UINT(ss, 0, 0);
+ n = H_INDEX_UINT(ss, 0, 1);
if (nr >= base && nr - base < n)
return H_INDEX(XREntry, ss, 1, nr - base);
@@ -1434,6 +1437,7 @@ parse_xrefs(const uint8_t *input, size_t sz, size_t *nxrefs)
"position %zu (%#zx)\n", infile, offset, offset);
break;
}
+ assert(res->ast != NULL);
/* save this section in xrefs */
if (n >= SIZE_MAX / sizeof(HParsedToken *))
--
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