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Integrate some OpenBSD alignment fixes. This hopefully also fixes PR 38058...

Browse Source 
Obtained from:	Brad <brad@comstyle.com>
This commit is contained in:
Brian Somers 2005-01-10 09:48:51 +00:00
parent f829c24893
commit eb1ecbb230
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=139973
2 changed files with 35 additions and 27 deletions
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48
usr.sbin/ppp/ipcp.c
View File

@ -192,6 +192,10 @@ ipcp_LoadDNS(struct ipcp *ipcp)
if (fstat(fd, &st) == 0) {
ssize_t got;
/*
* Note, ns.resolv and ns.resolv_nons are assumed to always point to
* buffers of the same size! See the strcpy() below.
*/
if ((ipcp->ns.resolv_nons = (char *)malloc(st.st_size + 1)) == NULL)
log_Printf(LogERROR, "Failed to malloc %lu for %s: %s\n",
(unsigned long)st.st_size, _PATH_RESCONF, strerror(errno));
@ -252,6 +256,10 @@ ipcp_LoadDNS(struct ipcp *ipcp)
else
cp++;
}
/*
* Note, cp_nons and cp always point to buffers of the same size, so
* strcpy is ok!
*/
strcpy(cp_nons, cp); /* Copy the end - including the NUL */
cp_nons += strlen(cp_nons) - 1;
while (cp_nons >= ipcp->ns.resolv_nons && *cp_nons == '\n')
@ -746,7 +754,7 @@ IpcpSendConfigReq(struct fsm *fp)
/* Send config REQ please */
struct physical *p = link2physical(fp->link);
struct ipcp *ipcp = fsm2ipcp(fp);
u_char buff[24];
u_char buff[MAX_FSM_OPT_LEN];
struct fsm_opt *o;
o = (struct fsm_opt *)buff;
@ -1045,7 +1053,7 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
struct ipcp *ipcp = fsm2ipcp(fp);
int gotdnsnak;
u_int32_t compproto;
struct compreq *pcomp;
struct compreq pcomp;
struct in_addr ipaddr, dstipaddr, have_ip;
char tbuff[100], tbuff2[100];
struct fsm_opt *opt, nak;
@ -1093,9 +1101,9 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
break;
case TY_COMPPROTO:
pcomp = (struct compreq *)opt->data;
compproto = (ntohs(pcomp->proto) << 16) + ((int)pcomp->slots << 8) +
pcomp->compcid;
memcpy(&pcomp, opt->data, sizeof pcomp);
compproto = (ntohs(pcomp.proto) << 16) + ((int)pcomp.slots << 8) +
pcomp.compcid;
log_Printf(LogIPCP, "%s %s\n", tbuff, vj2asc(compproto));
switch (mode_type) {
@ -1105,14 +1113,14 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
else {
switch (opt->hdr.len) {
case 4: /* RFC1172 */
if (ntohs(pcomp->proto) == PROTO_VJCOMP) {
if (ntohs(pcomp.proto) == PROTO_VJCOMP) {
log_Printf(LogWARN, "Peer is speaking RFC1172 compression "
"protocol !\n");
ipcp->heis1172 = 1;
ipcp->peer_compproto = compproto;
fsm_ack(dec, opt);
} else {
pcomp->proto = htons(PROTO_VJCOMP);
pcomp.proto = htons(PROTO_VJCOMP);
nak.hdr.id = TY_COMPPROTO;
nak.hdr.len = 4;
memcpy(nak.data, &pcomp, 2);
@ -1120,9 +1128,9 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
}
break;
case 6: /* RFC1332 */
if (ntohs(pcomp->proto) == PROTO_VJCOMP) {
/* We know pcomp->slots' max value == MAX_VJ_STATES */
if (pcomp->slots >= MIN_VJ_STATES) {
if (ntohs(pcomp.proto) == PROTO_VJCOMP) {
/* We know pcomp.slots' max value == MAX_VJ_STATES */
if (pcomp.slots >= MIN_VJ_STATES) {
/* Ok, we can do that */
ipcp->peer_compproto = compproto;
ipcp->heis1172 = 0;
@ -1130,7 +1138,7 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
} else {
/* Get as close as we can to what he wants */
ipcp->heis1172 = 0;
pcomp->slots = MIN_VJ_STATES;
pcomp.slots = MIN_VJ_STATES;
nak.hdr.id = TY_COMPPROTO;
nak.hdr.len = 4;
memcpy(nak.data, &pcomp, 2);
@ -1138,9 +1146,9 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
}
} else {
/* What we really want */
pcomp->proto = htons(PROTO_VJCOMP);
pcomp->slots = DEF_VJ_STATES;
pcomp->compcid = 1;
pcomp.proto = htons(PROTO_VJCOMP);
pcomp.slots = DEF_VJ_STATES;
pcomp.compcid = 1;
nak.hdr.id = TY_COMPPROTO;
nak.hdr.len = 6;
memcpy(nak.data, &pcomp, sizeof pcomp);
@ -1155,12 +1163,12 @@ IpcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
break;
case MODE_NAK:
if (ntohs(pcomp->proto) == PROTO_VJCOMP) {
/* We know pcomp->slots' max value == MAX_VJ_STATES */
if (pcomp->slots < MIN_VJ_STATES)
pcomp->slots = MIN_VJ_STATES;
compproto = (ntohs(pcomp->proto) << 16) + (pcomp->slots << 8) +
pcomp->compcid;
if (ntohs(pcomp.proto) == PROTO_VJCOMP) {
/* We know pcomp.slots' max value == MAX_VJ_STATES */
if (pcomp.slots < MIN_VJ_STATES)
pcomp.slots = MIN_VJ_STATES;
compproto = (ntohs(pcomp.proto) << 16) + (pcomp.slots << 8) +
pcomp.compcid;
} else
compproto = 0;
log_Printf(LogIPCP, "%s changing compproto: %08x --> %08x\n",

14
usr.sbin/ppp/lcp.c
View File

@ -665,7 +665,7 @@ LcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
size_t sz;
u_int32_t magic, accmap;
u_short mru, phmtu, maxmtu, maxmru, wantmtu, wantmru, proto;
struct lqrreq *req;
struct lqrreq req;
char request[20], desc[22];
struct mp *mp;
struct physical *p = link2physical(fp->link);
@ -933,24 +933,24 @@ LcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type,
break;
case TY_QUALPROTO:
req = (struct lqrreq *)opt;
memcpy(&req, opt, sizeof req);
log_Printf(LogLCP, "%s proto %x, interval %lums\n",
request, ntohs(req->proto), (u_long)ntohl(req->period) * 10);
request, ntohs(req.proto), (u_long)ntohl(req.period) * 10);
switch (mode_type) {
case MODE_REQ:
if (ntohs(req->proto) != PROTO_LQR || !IsAccepted(lcp->cfg.lqr)) {
if (ntohs(req.proto) != PROTO_LQR || !IsAccepted(lcp->cfg.lqr)) {
fsm_rej(dec, opt);
lcp->my_reject |= (1 << opt->hdr.id);
} else {
lcp->his_lqrperiod = ntohl(req->period);
lcp->his_lqrperiod = ntohl(req.period);
if (lcp->his_lqrperiod < MIN_LQRPERIOD * 100)
lcp->his_lqrperiod = MIN_LQRPERIOD * 100;
req->period = htonl(lcp->his_lqrperiod);
req.period = htonl(lcp->his_lqrperiod);
fsm_ack(dec, opt);
}
break;
case MODE_NAK:
lcp->want_lqrperiod = ntohl(req->period);
lcp->want_lqrperiod = ntohl(req.period);
break;
case MODE_REJ:
lcp->his_reject |= (1 << opt->hdr.id);