In parse_binary() there is:
forward = parse_binary_hunk(&buffer, &size, &status, &used);
if (!forward && !status)
/* there has to be one hunk (forward hunk) */
return error(_("unrecognized binary patch at line %d"), linenr-1);
so parse_binary() can return -1, because that's what error() returns.
Also parse_binary_hunk() sets "status" to -1 in case of error and
parse_binary() does "if (status) return status;".
In this case parse_chunk() should just exit, rather than add -1 to the
patchsize it computes.
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
builtin/apply.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/builtin/apply.c b/builtin/apply.c
index 42c610e..18dec0f 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -1872,6 +1872,11 @@ static struct fragment *parse_binary_hunk(char **buf_p,
return NULL;
}
+/*
+ * Returns:
+ * -1 in case of error,
+ * the length of the parsed binary patch otherwise
+ */
static int parse_binary(char *buffer, unsigned long size, struct patch *patch)
{
/*
@@ -2017,6 +2022,8 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
linenr++;
used = parse_binary(buffer + hd + llen,
size - hd - llen, patch);
+ if (used < 0)
+ exit(1);
if (used)
patchsize = used + llen;
else
--
2.8.0.rc2.54.g810e8ee
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