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Avoid circular references

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This commit is contained in:
Pieter Wuille 2015-03-07 04:03:08 -08:00
parent 7fedc639db
commit 11e935b720
1 changed files with 2 additions and 2 deletions
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4
dns.c
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@ -83,9 +83,9 @@ int static parse_name(const unsigned char **inpos, const unsigned char *inend, c
if (*inpos == inend) if (*inpos == inend)
return -1; return -1;
int ref = ((octet - 0xC0) << 8) + *((*inpos)++); int ref = ((octet - 0xC0) << 8) + *((*inpos)++);
if (ref < 0 || ref >= (*inpos)-inbuf) return -1; if (ref < 0 || ref >= (*inpos)-inbuf-2) return -1;
const unsigned char *newbuf = inbuf + ref; const unsigned char *newbuf = inbuf + ref;
return parse_name(&newbuf, *inpos, inbuf, buf+bufused, bufsize-bufused); return parse_name(&newbuf, (*inpos) - 2, inbuf, buf+bufused, bufsize-bufused);
} }
if (octet > 63) return -1; if (octet > 63) return -1;
// copy label // copy label