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-rw-r--r--src/network/dn_skipname.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/network/dn_skipname.c b/src/network/dn_skipname.c
index d54c2e5d..eba65bb8 100644
--- a/src/network/dn_skipname.c
+++ b/src/network/dn_skipname.c
@@ -2,11 +2,14 @@
int dn_skipname(const unsigned char *s, const unsigned char *end)
{
- const unsigned char *p;
- for (p=s; p<end; p++)
+ const unsigned char *p = s;
+ while (p < end)
if (!*p) return p-s+1;
else if (*p>=192)
if (p+1<end) return p-s+2;
else break;
+ else
+ if (end-p<*p+1) break;
+ else p += *p + 1;
return -1;
}