summaryrefslogtreecommitdiff
path: root/builtin/clone.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/clone.c')
-rw-r--r--builtin/clone.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/builtin/clone.c b/builtin/clone.c
index 97de324e54..1f6338a223 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -255,6 +255,15 @@ static char *guess_dir_name(const char *repo, int is_bundle, int is_bare)
}
/*
+ * It should not be possible to overflow `ptrdiff_t` by passing in an
+ * insanely long URL, but GCC does not know that and will complain
+ * without this check.
+ */
+ if (end - start < 0)
+ die(_("No directory name could be guessed.\n"
+ "Please specify a directory on the command line"));
+
+ /*
* Strip trailing port number if we've got only a
* hostname (that is, there is no dir separator but a
* colon). This check is required such that we do not