The API documentation (notmuch.h) states that the parameter may be NULL,
but the implementation only checked the current element, potentially
dereferencing a NULL pointer in the process.
Signed-off-by: Sascha Silbe <sascha-...@silbe.org>
---
lib/filenames.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/filenames.c b/lib/filenames.c
index f1ea243..4f7c0d8 100644
--- a/lib/filenames.c
+++ b/lib/filenames.c
@@ -54,7 +54,7 @@ notmuch_filenames_valid (notmuch_filenames_t *filenames)
const char *
notmuch_filenames_get (notmuch_filenames_t *filenames)
{
- if (filenames->iterator == NULL)
+ if ((filenames == NULL) || (filenames->iterator == NULL))
return NULL;
return filenames->iterator->string;
@@ -63,7 +63,7 @@ notmuch_filenames_get (notmuch_filenames_t *filenames)
void
notmuch_filenames_move_to_next (notmuch_filenames_t *filenames)
{
- if (filenames->iterator == NULL)
+ if ((filenames == NULL) || (filenames->iterator == NULL))
return;
filenames->iterator = filenames->iterator->next;
--
1.7.10
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