add xsnprintf helper function

diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c
index 8e02ea109ac8f9fd739c4d54b7a709916f88022a..9de06e3cf7f9d1c2a7aed810efe16d856ae8fa61 100644 (file)
--- a/builtin/mailsplit.c
+++ b/builtin/mailsplit.c
@@ -150,6 +150,7 @@ static int split_maildir(const char *maildir, const char *dir,
 {
        char file[PATH_MAX];
        char name[PATH_MAX];
+       FILE *f = NULL;
        int ret = -1;
        int i;
        struct string_list list = STRING_LIST_INIT_DUP;
@@ -160,7 +161,6 @@ static int split_maildir(const char *maildir, const char *dir,
                goto out;
 
        for (i = 0; i < list.nr; i++) {
-               FILE *f;
                snprintf(file, sizeof(file), "%s/%s", maildir, list.items[i].string);
                f = fopen(file, "r");
                if (!f) {
@@ -177,10 +177,13 @@ static int split_maildir(const char *maildir, const char *dir,
                split_one(f, name, 1);
 
                fclose(f);
+               f = NULL;
        }
 
        ret = skip;
 out:
+       if (f)
+               fclose(f);
        string_list_clear(&list, 1);
        return ret;
 }