Date: Fri, 10 Feb 2012 23:36:33 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r231477 - stable/8/sys/netinet Message-ID: <201202102336.q1ANaXhW002252@svn.freebsd.org>
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Author: tuexen Date: Fri Feb 10 23:36:33 2012 New Revision: 231477 URL: http://svn.freebsd.org/changeset/base/231477 Log: MFC r227486: Don't copy uninitialized memory. Also simplify the comparison of interface names. Modified: stable/8/sys/netinet/sctp_pcb.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/boot/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/e1000/ (props changed) Modified: stable/8/sys/netinet/sctp_pcb.c ============================================================================== --- stable/8/sys/netinet/sctp_pcb.c Fri Feb 10 23:34:07 2012 (r231476) +++ stable/8/sys/netinet/sctp_pcb.c Fri Feb 10 23:36:33 2012 (r231477) @@ -559,9 +559,9 @@ sctp_add_addr_to_vrf(uint32_t vrf_id, vo atomic_add_int(&vrf->refcount, 1); sctp_ifnp->ifn_mtu = SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, addr->sa_family); if (if_name != NULL) { - memcpy(sctp_ifnp->ifn_name, if_name, SCTP_IFNAMSIZ); + snprintf(sctp_ifnp->ifn_name, SCTP_IFNAMSIZ, "%s", if_name); } else { - memcpy(sctp_ifnp->ifn_name, "unknown", min(7, SCTP_IFNAMSIZ)); + snprintf(sctp_ifnp->ifn_name, SCTP_IFNAMSIZ, "%s", "unknown"); } hash_ifn_head = &SCTP_BASE_INFO(vrf_ifn_hash)[(ifn_index & SCTP_BASE_INFO(vrf_ifn_hashmark))]; LIST_INIT(&sctp_ifnp->ifalist); @@ -768,19 +768,9 @@ sctp_del_addr_from_vrf(uint32_t vrf_id, * panda who might recycle indexes fast. */ if (if_name) { - int len1, len2; - - len1 = min(SCTP_IFNAMSIZ, strlen(if_name)); - len2 = min(SCTP_IFNAMSIZ, strlen(sctp_ifap->ifn_p->ifn_name)); - if (len1 && len2 && (len1 == len2)) { - /* we can compare them */ - if (strncmp(if_name, sctp_ifap->ifn_p->ifn_name, len1) == 0) { - /* - * They match its a correct - * delete - */ - valid = 1; - } + if (strncmp(if_name, sctp_ifap->ifn_p->ifn_name, SCTP_IFNAMSIZ) == 0) { + /* They match its a correct delete */ + valid = 1; } } if (!valid) {
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