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-rwxr-xr-xt/t4205-log-pretty-formats.sh7
-rw-r--r--utf8.c3
2 files changed, 10 insertions, 0 deletions
diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats.sh
index 349c53198..de0cc4a0f 100755
--- a/t/t4205-log-pretty-formats.sh
+++ b/t/t4205-log-pretty-formats.sh
@@ -431,6 +431,13 @@ EOF
test_cmp expected actual
'
+test_expect_success 'strbuf_utf8_replace() not producing NUL' '
+ git log --color --pretty="tformat:%<(10,trunc)%s%>>(10,ltrunc)%C(auto)%d" |
+ test_decode_color |
+ nul_to_q >actual &&
+ ! grep Q actual
+'
+
# get new digests (with no abbreviations)
head1=$(git rev-parse --verify HEAD~0) &&
head2=$(git rev-parse --verify HEAD~1) &&
diff --git a/utf8.c b/utf8.c
index b30790d04..401a6a509 100644
--- a/utf8.c
+++ b/utf8.c
@@ -382,6 +382,9 @@ void strbuf_utf8_replace(struct strbuf *sb_src, int pos, int width,
dst += n;
}
+ if (src >= end)
+ break;
+
old = src;
n = utf8_width((const char**)&src, NULL);
if (!src) /* broken utf-8, do nothing */