truncate buffer before reading empty files

If readfile() reads an empty file, fgets() won't truncate the buffer
and it'll still contain the contents of the previously read file.

[lh: fixed similar issue in ui-repolist.c]

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/scan-tree.c b/scan-tree.c
index cdafb02..47f3988 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -33,24 +33,25 @@ static int is_git_dir(const char *path)
                 return 0;
 
         return 1;
 }
 
 char *readfile(const char *path)
 {
         FILE *f;
         static char buf[MAX_PATH];
 
         if (!(f = fopen(path, "r")))
                 return NULL;
+        buf[0] = 0;
         fgets(buf, MAX_PATH, f);
         fclose(f);
         return buf;
 }
 
 static void add_repo(const char *base, const char *path)
 {
         struct cgit_repo *repo;
         struct stat st;
         struct passwd *pwd;
         char *p;