diff options
Diffstat (limited to 'ares/ares_expand_name.c')
-rw-r--r-- | ares/ares_expand_name.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/ares/ares_expand_name.c b/ares/ares_expand_name.c index 5a48b4d59..fd3220d69 100644 --- a/ares/ares_expand_name.c +++ b/ares/ares_expand_name.c @@ -69,17 +69,21 @@ int ares_expand_name(const unsigned char *encoded, const unsigned char *abuf, int len, indir = 0; char *q; const unsigned char *p; + union { + ssize_t sig; + size_t uns; + } nlen; - len = name_length(encoded, abuf, alen); - if (len < 0) + nlen.sig = name_length(encoded, abuf, alen); + if (nlen.sig < 0) return ARES_EBADNAME; - *s = malloc(((size_t)len) + 1); + *s = malloc(nlen.uns + 1); if (!*s) return ARES_ENOMEM; q = *s; - if (len == 0) { + if (nlen.uns == 0) { /* RFC2181 says this should be ".": the root of the DNS tree. * Since this function strips trailing dots though, it becomes "" */ |