input: fix input.conf parse errors

Commit df899f59be removing a write outside a buffer triggered another
problem, as for some reason the code did not 0-terminate its read
buffer in the specific case that it had encountered an EOF, and as a
result could parse contents left in the buffer for a second time.
Usually this resulted in parsing error messages. Fix the problem by
rewriting the offending code in a less hacky form.

1 files changed, 2 insertions, 0 deletions

diff --git a/bstr.h b/bstr.h
index 465234d092..390ec1a784 100644
--- a/bstr.h
+++ b/bstr.h
@@ -38,8 +38,10 @@ int bstrcmp(struct bstr str1, struct bstr str2);
 int bstrcasecmp(struct bstr str1, struct bstr str2);
 int bstrchr(struct bstr str, int c);
 int bstrrchr(struct bstr str, int c);
+
 int bstr_find(struct bstr haystack, struct bstr needle);
 struct bstr *bstr_splitlines(void *talloc_ctx, struct bstr str);
+struct bstr bstr_lstrip(struct bstr str);
 struct bstr bstr_strip(struct bstr str);
 struct bstr bstr_split(struct bstr str, char *sep, struct bstr *rest);
 struct bstr bstr_splice(struct bstr str, int start, int end);