ref: 5d68e51152a9a8f23a3aee53fae8ea83fc49929a
parent: 6bc544f3da5bc40abca38e5dc652f999d2162847
author: Jacob Moody <moody@posixcafe.org>
date: Mon Oct 23 12:16:02 EDT 2023
ip/snoopy: sync with ndb/dns
--- a/sys/src/cmd/ip/snoopy/dns.c
+++ b/sys/src/cmd/ip/snoopy/dns.c
@@ -342,11 +342,12 @@
dnlookup(char *name, int class, int)
{DN *dn;
+ int n;
- dn = emalloc(sizeof *dn);
- dn->name = estrdup(name);
+ n = strlen(name) + 1;
+ dn = emalloc(sizeof(*dn) + n);
+ memmove(dn->name, name, n);
dn->class = class;
- dn->magic = DNmagic;
dn->next = alldn;
alldn = dn;
return dn;
@@ -359,7 +360,6 @@
while(dn = alldn){alldn = dn->next;
- free(dn->name);
free(dn);
}
}
@@ -430,7 +430,6 @@
RR *rp;
rp = emalloc(sizeof(*rp));
- rp->magic = RRmagic;
rp->pc = getcallerpc(&type);
rp->type = type;
setmalloctag(rp, rp->pc);
@@ -482,12 +481,10 @@
RR *nrp;
Txt *t;
- assert(rp->magic = RRmagic);
assert(!rp->cached);
dp = rp->owner;
if(dp){- assert(dp->magic == DNmagic);
for(nrp = dp->rr; nrp; nrp = nrp->next)
assert(nrp != rp); /* "rrfree of live rr" */
}
@@ -526,6 +523,7 @@
case Tcaa:
free(rp->caa->data);
memset(rp->caa, 0, sizeof *rp->caa); /* cause trouble */
+ free(rp->caa);
break;
case Ttxt:
while(t = rp->txt){@@ -537,7 +535,6 @@
break;
}
- rp->magic = ~rp->magic;
memset(rp, 0, sizeof *rp); /* cause trouble */
free(rp);
}