Merge branch 'rs/strbuf-read-once-reset-length'

diff --git a/strbuf.c b/strbuf.c
index 323c49ceb35cb053434248df869578e649ccadc0..ac5a7ab62d554fb292d29df9cb618a336c5336c0 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -386,12 +386,15 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint)
 
 ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint)
 {
+       size_t oldalloc = sb->alloc;
        ssize_t cnt;
 
        strbuf_grow(sb, hint ? hint : 8192);
        cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
        if (cnt > 0)
                strbuf_setlen(sb, sb->len + cnt);
+       else if (oldalloc == 0)
+               strbuf_release(sb);
        return cnt;
 }