Christian CouderIn 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 not add -1 to the patchsize it computes. It is better for future libification efforts to make it just return -1.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> --- builtin/apply.c | 7 +++++++ 1 file changed, 7 insertions(+)
Show changes to builtin/apply.c +7 −0
diff --git a/builtin/apply.c b/builtin/apply.c index 42c610e..c399c97 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) + return -1; if (used) patchsize = used + llen; else
-- 2.8.0.rc2.1.g21d258f