avl: add blob comparator function

[project/libubox.git] / ustream.c

diff --git a/ustream.c b/ustream.c
index e7ee9f0..d36ce08 100644 (file)
--- a/ustream.c
+++ b/ustream.c
@@ -65,6 +65,9 @@ static int ustream_alloc_default(struct ustream *s, struct ustream_buf_list *l)
                return -1;
 
        buf = malloc(sizeof(*buf) + l->buffer_len + s->string_data);
+       if (!buf)
+               return -1;
+
        ustream_init_buf(buf, l->buffer_len);
        ustream_add_buf(l, buf);
 
@@ -490,6 +493,8 @@ int ustream_vprintf(struct ustream *s, const char *format, va_list arg)
                        return ustream_write_buffered(s, buf, maxlen, wr);
                } else {
                        buf = malloc(maxlen + 1);
+                       if (!buf)
+                               return 0;
                        wr = vsnprintf(buf, maxlen + 1, format, arg);
                        wr = ustream_write(s, buf, wr, false);
                        free(buf);
@@ -517,6 +522,8 @@ int ustream_vprintf(struct ustream *s, const char *format, va_list arg)
                return wr;
 
        buf = malloc(maxlen + 1);
+       if (!buf)
+               return wr;
        maxlen = vsnprintf(buf, maxlen + 1, format, arg);
        wr = ustream_write_buffered(s, buf + wr, maxlen - wr, wr);
        free(buf);