/usr/src/sbin/pfctl/pfctl

Bug Summary

File:	src/sbin/pfctl/pfctl_parser.c
Warning:	line 1683, column 7 Potential memory leak
Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name pfctl_parser.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sbin/pfctl/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/sbin/pfctl -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -Wno-uninitialized -fdebug-compilation-dir=/usr/src/sbin/pfctl/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/sbin/pfctl/pfctl_parser.c
1/*	$OpenBSD: pfctl_parser.c,v 1.346 2021/02/01 00:31:04 dlg Exp $ */

3/*
* Copyright (c) 2001 Daniel Hartmeier
* Copyright (c) 2002 - 2013 Henning Brauer <henning@openbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*    - Redistributions of source code must retain the above copyright
*      notice, this list of conditions and the following disclaimer.
*    - Redistributions in binary form must reproduce the above
*      copyright notice, this list of conditions and the following
*      disclaimer in the documentation and/or other materials provided
*      with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/

34#include <sys/types.h>
35#include <sys/ioctl.h>
36#include <sys/socket.h>
37#include <net/if_dl.h>
38#include <net/if.h>
39#include <netinet/in.h>
40#include <netinet/ip.h>
41#include <netinet/ip_icmp.h>
42#include <netinet/icmp6.h>
43#include <net/pfvar.h>
44#include <arpa/inet.h>

46#include <ctype.h>
47#include <err.h>
48#include <errno(*__errno()).h>
49#include <ifaddrs.h>
50#include <limits.h>
51#include <netdb.h>
52#include <stdarg.h>
53#include <stdio.h>
54#include <stdlib.h>
55#include <string.h>
56#include <time.h>
57#include <unistd.h>

59#define SYSLOG_NAMES
60#include <syslog.h>

62#include "pfctl_parser.h"
63#include "pfctl.h"

65void		 print_op (u_int8_t, const char *, const char *);
66void		 print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int);
67void		 print_ugid (u_int8_t, id_t, id_t, const char *);
68void		 print_flags (u_int8_t);
69void		 print_fromto(struct pf_rule_addr *, pf_osfp_t,
    struct pf_rule_addr *, u_int8_t, u_int8_t, int);
71void		 print_bwspec(const char *index, struct pf_queue_bwspec *);
72void		 print_scspec(const char *, struct pf_queue_scspec *);
73int		 ifa_skip_if(const char *filter, struct node_host *p);

75struct node_host	*ifa_grouplookup(const char *, int);
76struct node_host	*host_if(const char *, int);
77struct node_host	*host_ip(const char *, int);
78struct node_host	*host_dns(const char *, int, int);

80const char *tcpflags = "FSRPAUEW";

82static const struct icmptypeent icmp_type[] = {
{ "echoreq",	ICMP_ECHO8 },
{ "echorep",	ICMP_ECHOREPLY0 },
{ "unreach",	ICMP_UNREACH3 },
{ "squench",	ICMP_SOURCEQUENCH4 },
{ "redir",	ICMP_REDIRECT5 },
{ "althost",	ICMP_ALTHOSTADDR6 },
{ "routeradv",	ICMP_ROUTERADVERT9 },
{ "routersol",	ICMP_ROUTERSOLICIT10 },
{ "timex",	ICMP_TIMXCEED11 },
{ "paramprob",	ICMP_PARAMPROB12 },
{ "timereq",	ICMP_TSTAMP13 },
{ "timerep",	ICMP_TSTAMPREPLY14 },
{ "inforeq",	ICMP_IREQ15 },
{ "inforep",	ICMP_IREQREPLY16 },
{ "maskreq",	ICMP_MASKREQ17 },
{ "maskrep",	ICMP_MASKREPLY18 },
{ "trace",	ICMP_TRACEROUTE30 },
{ "dataconv",	ICMP_DATACONVERR31 },
{ "mobredir",	ICMP_MOBILE_REDIRECT32 },
{ "ipv6-where",	ICMP_IPV6_WHEREAREYOU33 },
{ "ipv6-here",	ICMP_IPV6_IAMHERE34 },
{ "mobregreq",	ICMP_MOBILE_REGREQUEST35 },
{ "mobregrep",	ICMP_MOBILE_REGREPLY36 },
{ "skip",	ICMP_SKIP39 },
{ "photuris",	ICMP_PHOTURIS40 }
108};

110static const struct icmptypeent icmp6_type[] = {
{ "unreach",	ICMP6_DST_UNREACH1 },
{ "toobig",	ICMP6_PACKET_TOO_BIG2 },
{ "timex",	ICMP6_TIME_EXCEEDED3 },
{ "paramprob",	ICMP6_PARAM_PROB4 },
{ "echoreq",	ICMP6_ECHO_REQUEST128 },
{ "echorep",	ICMP6_ECHO_REPLY129 },
{ "groupqry",	ICMP6_MEMBERSHIP_QUERY130 },
{ "listqry",	MLD_LISTENER_QUERY130 },
{ "grouprep",	ICMP6_MEMBERSHIP_REPORT131 },
{ "listenrep",	MLD_LISTENER_REPORT131 },
{ "groupterm",	ICMP6_MEMBERSHIP_REDUCTION132 },
{ "listendone", MLD_LISTENER_DONE132 },
{ "routersol",	ND_ROUTER_SOLICIT133 },
{ "routeradv",	ND_ROUTER_ADVERT134 },
{ "neighbrsol", ND_NEIGHBOR_SOLICIT135 },
{ "neighbradv", ND_NEIGHBOR_ADVERT136 },
{ "redir",	ND_REDIRECT137 },
{ "routrrenum", ICMP6_ROUTER_RENUMBERING138 },
{ "wrureq",	ICMP6_WRUREQUEST139 },
{ "wrurep",	ICMP6_WRUREPLY140 },
{ "fqdnreq",	ICMP6_FQDN_QUERY139 },
{ "fqdnrep",	ICMP6_FQDN_REPLY140 },
{ "niqry",	ICMP6_NI_QUERY139 },
{ "nirep",	ICMP6_NI_REPLY140 },
{ "mtraceresp",	MLD_MTRACE_RESP200 },
{ "mtrace",	MLD_MTRACE201 },
{ "listenrepv2", MLDV2_LISTENER_REPORT143 },
138};

140static const struct icmpcodeent icmp_code[] = {
{ "net-unr",		ICMP_UNREACH3,	ICMP_UNREACH_NET0 },
{ "host-unr",		ICMP_UNREACH3,	ICMP_UNREACH_HOST1 },
{ "proto-unr",		ICMP_UNREACH3,	ICMP_UNREACH_PROTOCOL2 },
{ "port-unr",		ICMP_UNREACH3,	ICMP_UNREACH_PORT3 },
{ "needfrag",		ICMP_UNREACH3,	ICMP_UNREACH_NEEDFRAG4 },
{ "srcfail",		ICMP_UNREACH3,	ICMP_UNREACH_SRCFAIL5 },
{ "net-unk",		ICMP_UNREACH3,	ICMP_UNREACH_NET_UNKNOWN6 },
{ "host-unk",		ICMP_UNREACH3,	ICMP_UNREACH_HOST_UNKNOWN7 },
{ "isolate",		ICMP_UNREACH3,	ICMP_UNREACH_ISOLATED8 },
{ "net-prohib",		ICMP_UNREACH3,	ICMP_UNREACH_NET_PROHIB9 },
{ "host-prohib",	ICMP_UNREACH3,	ICMP_UNREACH_HOST_PROHIB10 },
{ "net-tos",		ICMP_UNREACH3,	ICMP_UNREACH_TOSNET11 },
{ "host-tos",		ICMP_UNREACH3,	ICMP_UNREACH_TOSHOST12 },
{ "filter-prohib",	ICMP_UNREACH3,	ICMP_UNREACH_FILTER_PROHIB13 },
{ "host-preced",	ICMP_UNREACH3,	ICMP_UNREACH_HOST_PRECEDENCE14 },
{ "cutoff-preced",	ICMP_UNREACH3,	ICMP_UNREACH_PRECEDENCE_CUTOFF15 },
{ "redir-net",		ICMP_REDIRECT5,	ICMP_REDIRECT_NET0 },
{ "redir-host",		ICMP_REDIRECT5,	ICMP_REDIRECT_HOST1 },
{ "redir-tos-net",	ICMP_REDIRECT5,	ICMP_REDIRECT_TOSNET2 },
{ "redir-tos-host",	ICMP_REDIRECT5,	ICMP_REDIRECT_TOSHOST3 },
{ "normal-adv",		ICMP_ROUTERADVERT9, ICMP_ROUTERADVERT_NORMAL0 },
{ "common-adv",		ICMP_ROUTERADVERT9, ICMP_ROUTERADVERT_NOROUTE_COMMON16 },
{ "transit",		ICMP_TIMXCEED11,	ICMP_TIMXCEED_INTRANS0 },
{ "reassemb",		ICMP_TIMXCEED11,	ICMP_TIMXCEED_REASS1 },
{ "badhead",		ICMP_PARAMPROB12,	ICMP_PARAMPROB_ERRATPTR0 },
{ "optmiss",		ICMP_PARAMPROB12,	ICMP_PARAMPROB_OPTABSENT1 },
{ "badlen",		ICMP_PARAMPROB12,	ICMP_PARAMPROB_LENGTH2 },
{ "unknown-ind",	ICMP_PHOTURIS40,	ICMP_PHOTURIS_UNKNOWN_INDEX1 },
{ "auth-fail",		ICMP_PHOTURIS40,	ICMP_PHOTURIS_AUTH_FAILED2 },
{ "decrypt-fail",	ICMP_PHOTURIS40,	ICMP_PHOTURIS_DECRYPT_FAILED3 }
171};

173static const struct icmpcodeent icmp6_code[] = {
{ "admin-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_ADMIN1 },
{ "noroute-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_NOROUTE0 },
{ "beyond-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_BEYONDSCOPE2 },
{ "addr-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_ADDR3 },
{ "port-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_NOPORT4 },
{ "transit", ICMP6_TIME_EXCEEDED3, ICMP6_TIME_EXCEED_TRANSIT0 },
{ "reassemb", ICMP6_TIME_EXCEEDED3, ICMP6_TIME_EXCEED_REASSEMBLY1 },
{ "badhead", ICMP6_PARAM_PROB4, ICMP6_PARAMPROB_HEADER0 },
{ "nxthdr", ICMP6_PARAM_PROB4, ICMP6_PARAMPROB_NEXTHEADER1 },
{ "redironlink", ND_REDIRECT137, ND_REDIRECT_ONLINK0 },
{ "redirrouter", ND_REDIRECT137, ND_REDIRECT_ROUTER1 }
185};

187const struct pf_timeout pf_timeouts[] = {
{ "tcp.first",		PFTM_TCP_FIRST_PACKET },
{ "tcp.opening",	PFTM_TCP_OPENING },
{ "tcp.established",	PFTM_TCP_ESTABLISHED },
{ "tcp.closing",	PFTM_TCP_CLOSING },
{ "tcp.finwait",	PFTM_TCP_FIN_WAIT },
{ "tcp.closed",		PFTM_TCP_CLOSED },
{ "tcp.tsdiff",		PFTM_TS_DIFF },
{ "udp.first",		PFTM_UDP_FIRST_PACKET },
{ "udp.single",		PFTM_UDP_SINGLE },
{ "udp.multiple",	PFTM_UDP_MULTIPLE },
{ "icmp.first",		PFTM_ICMP_FIRST_PACKET },
{ "icmp.error",		PFTM_ICMP_ERROR_REPLY },
{ "other.first",	PFTM_OTHER_FIRST_PACKET },
{ "other.single",	PFTM_OTHER_SINGLE },
{ "other.multiple",	PFTM_OTHER_MULTIPLE },
{ "frag",		PFTM_FRAG },
{ "interval",		PFTM_INTERVAL },
{ "adaptive.start",	PFTM_ADAPTIVE_START },
{ "adaptive.end",	PFTM_ADAPTIVE_END },
{ "src.track",		PFTM_SRC_NODE },
{ NULL((void *)0),			0 }
209};

211enum { PF_POOL_ROUTE, PF_POOL_NAT, PF_POOL_RDR };

213void
214copy_satopfaddr(struct pf_addr *pfa, struct sockaddr *sa)
215{
if (sa->sa_family == AF_INET624)
pfa->v6pfa.v6 = ((struct sockaddr_in6 *)sa)->sin6_addr;
else if (sa->sa_family == AF_INET2)
pfa->v4pfa.v4 = ((struct sockaddr_in *)sa)->sin_addr;
else
warnx("unhandled af %d", sa->sa_family);
222}

224const struct icmptypeent *
225geticmptypebynumber(u_int8_t type, sa_family_t af)
226{
unsigned int	i;

if (af != AF_INET624) {
for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0]));
    i++) {
	if (type == icmp_type[i].type)
		return (&icmp_type[i]);
}
} else {
for (i=0; i < (sizeof (icmp6_type) /
    sizeof(icmp6_type[0])); i++) {
	if (type == icmp6_type[i].type)
		 return (&icmp6_type[i]);
}
}
return (NULL((void *)0));
243}

245const struct icmptypeent *
246geticmptypebyname(char *w, sa_family_t af)
247{
unsigned int	i;

if (af != AF_INET624) {
for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0]));
    i++) {
	if (!strcmp(w, icmp_type[i].name))
		return (&icmp_type[i]);
}
} else {
for (i=0; i < (sizeof (icmp6_type) /
    sizeof(icmp6_type[0])); i++) {
	if (!strcmp(w, icmp6_type[i].name))
		return (&icmp6_type[i]);
}
}
return (NULL((void *)0));
264}

266const struct icmpcodeent *
267geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af)
268{
unsigned int	i;

if (af != AF_INET624) {
for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0]));
    i++) {
	if (type == icmp_code[i].type &&
	    code == icmp_code[i].code)
		return (&icmp_code[i]);
}
} else {
for (i=0; i < (sizeof (icmp6_code) /
    sizeof(icmp6_code[0])); i++) {
	if (type == icmp6_code[i].type &&
	    code == icmp6_code[i].code)
		return (&icmp6_code[i]);
}
}
return (NULL((void *)0));
287}

289const struct icmpcodeent *
290geticmpcodebyname(u_long type, char *w, sa_family_t af)
291{
unsigned int	i;

if (af != AF_INET624) {
for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0]));
    i++) {
	if (type == icmp_code[i].type &&
	    !strcmp(w, icmp_code[i].name))
		return (&icmp_code[i]);
}
} else {
for (i=0; i < (sizeof (icmp6_code) /
    sizeof(icmp6_code[0])); i++) {
	if (type == icmp6_code[i].type &&
	    !strcmp(w, icmp6_code[i].name))
		return (&icmp6_code[i]);
}
}
return (NULL((void *)0));
310}

312/*
*  Decode a symbolic name to a numeric value.
*  From syslogd.
*/
316int
317string_to_loglevel(const char *name)
318{
CODE *c;
char *p, buf[40];

if (isdigit((unsigned char)*name)) {
const char *errstr;
int val;

val = strtonum(name, 0, LOG_DEBUG7, &errstr);
if (errstr)
	return -1;
return val;
}

for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) {
if (isupper((unsigned char)*name))
	*p = tolower((unsigned char)*name);
else
	*p = *name;
}
*p = '\0';
for (c = prioritynames; c->c_name; c++)
if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI0x10)
	return (c->c_val);

return (-1);
344}

346const char *
347loglevel_to_string(int level)
348{
CODE *c;

for (c = prioritynames; c->c_name; c++)
if (c->c_val == level)
	return (c->c_name);

return ("unknown");
356}

358void
359print_op(u_int8_t op, const char *a1, const char *a2)
360{
if (op == PF_OP_IRG)
printf(" %s >< %s", a1, a2);
else if (op == PF_OP_XRG)
printf(" %s <> %s", a1, a2);
else if (op == PF_OP_EQ)
printf(" = %s", a1);
else if (op == PF_OP_NE)
printf(" != %s", a1);
else if (op == PF_OP_LT)
printf(" < %s", a1);
else if (op == PF_OP_LE)
printf(" <= %s", a1);
else if (op == PF_OP_GT)
printf(" > %s", a1);
else if (op == PF_OP_GE)
printf(" >= %s", a1);
else if (op == PF_OP_RRG)
printf(" %s:%s", a1, a2);
379}

381void
382print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts)
383{
char		 a1[6], a2[6];
struct servent	*s = NULL((void *)0);

if (opts & PF_OPT_PORTNAMES0x08000)
s = getservbyport(p1, proto);
p1 = ntohs(p1)(__uint16_t)(__builtin_constant_p(p1) ? (__uint16_t)(((__uint16_t
)(p1) & 0xffU) << 8 | ((__uint16_t)(p1) & 0xff00U
) >> 8) : __swap16md(p1));
p2 = ntohs(p2)(__uint16_t)(__builtin_constant_p(p2) ? (__uint16_t)(((__uint16_t
)(p2) & 0xffU) << 8 | ((__uint16_t)(p2) & 0xff00U
) >> 8) : __swap16md(p2));
snprintf(a1, sizeof(a1), "%u", p1);
snprintf(a2, sizeof(a2), "%u", p2);
printf(" port");
if (s != NULL((void *)0) && (op == PF_OP_EQ || op == PF_OP_NE))
print_op(op, s->s_name, a2);
else
print_op(op, a1, a2);
398}

400void
401print_ugid(u_int8_t op, id_t i1, id_t i2, const char *t)
402{
char	a1[11], a2[11];

snprintf(a1, sizeof(a1), "%u", i1);
snprintf(a2, sizeof(a2), "%u", i2);
printf(" %s", t);
if (i1 == -1 && (op == PF_OP_EQ || op == PF_OP_NE))
print_op(op, "unknown", a2);
else
print_op(op, a1, a2);
412}

414void
415print_flags(u_int8_t f)
416{
int	i;

for (i = 0; tcpflags[i]; ++i)
if (f & (1 << i))
	printf("%c", tcpflags[i]);
422}

424void
425print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
  sa_family_t af, u_int8_t proto, int opts)
427{
char buf[PF_OSFP_LEN32*3];
int verbose = opts & (PF_OPT_VERBOSE20x00080 | PF_OPT_DEBUG0x00200);
if (src->addr.type == PF_ADDR_ADDRMASK &&
   dst->addr.type == PF_ADDR_ADDRMASK &&
   PF_AZERO(&src->addr.v.a.addr, AF_INET6)((24 == 2 && !(&src->addr.v.a.addr)->pfa.addr32
[0]) || (24 == 24 && !(&src->addr.v.a.addr)->
pfa.addr32[0] && !(&src->addr.v.a.addr)->pfa
.addr32[1] && !(&src->addr.v.a.addr)->pfa.addr32
[2] && !(&src->addr.v.a.addr)->pfa.addr32[3
] )) &&
   PF_AZERO(&src->addr.v.a.mask, AF_INET6)((24 == 2 && !(&src->addr.v.a.mask)->pfa.addr32
[0]) || (24 == 24 && !(&src->addr.v.a.mask)->
pfa.addr32[0] && !(&src->addr.v.a.mask)->pfa
.addr32[1] && !(&src->addr.v.a.mask)->pfa.addr32
[2] && !(&src->addr.v.a.mask)->pfa.addr32[3
] )) &&
   PF_AZERO(&dst->addr.v.a.addr, AF_INET6)((24 == 2 && !(&dst->addr.v.a.addr)->pfa.addr32
[0]) || (24 == 24 && !(&dst->addr.v.a.addr)->
pfa.addr32[0] && !(&dst->addr.v.a.addr)->pfa
.addr32[1] && !(&dst->addr.v.a.addr)->pfa.addr32
[2] && !(&dst->addr.v.a.addr)->pfa.addr32[3
] )) &&
   PF_AZERO(&dst->addr.v.a.mask, AF_INET6)((24 == 2 && !(&dst->addr.v.a.mask)->pfa.addr32
[0]) || (24 == 24 && !(&dst->addr.v.a.mask)->
pfa.addr32[0] && !(&dst->addr.v.a.mask)->pfa
.addr32[1] && !(&dst->addr.v.a.mask)->pfa.addr32
[2] && !(&dst->addr.v.a.mask)->pfa.addr32[3
] )) &&
   !src->neg && !dst->neg &&
   !src->port_op && !dst->port_op &&
   osfp == PF_OSFP_ANY((pf_osfp_t)0))
printf(" all");
else {
printf(" from ");
if (src->neg)
	printf("! ");
print_addr(&src->addr, af, verbose);
if (src->port_op)
	print_port(src->port_op, src->port[0],
	    src->port[1],
	    proto == IPPROTO_TCP6 ? "tcp" : "udp", opts);
if (osfp != PF_OSFP_ANY((pf_osfp_t)0))
	printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf,
	    sizeof(buf)));

printf(" to ");
if (dst->neg)
	printf("! ");
print_addr(&dst->addr, af, verbose);
if (dst->port_op)
	print_port(dst->port_op, dst->port[0],
	    dst->port[1],
	    proto == IPPROTO_TCP6 ? "tcp" : "udp", opts);
}
462}

464void
465print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2,
  sa_family_t af, int id, int verbose)
467{
if (pool->ifname[0]) {
if (!PF_AZERO(&pool->addr.v.a.addr, af)((af == 2 && !(&pool->addr.v.a.addr)->pfa.addr32
[0]) || (af == 24 && !(&pool->addr.v.a.addr)->
pfa.addr32[0] && !(&pool->addr.v.a.addr)->pfa
.addr32[1] && !(&pool->addr.v.a.addr)->pfa.
addr32[2] && !(&pool->addr.v.a.addr)->pfa.addr32
[3] ))) {
	print_addr(&pool->addr, af, verbose);
	printf("@");
}
printf("%s", pool->ifname);
} else
print_addr(&pool->addr, af, verbose);
switch (id) {
case PF_POOL_NAT:
if ((p1 != PF_NAT_PROXY_PORT_LOW50001 ||
    p2 != PF_NAT_PROXY_PORT_HIGH65535) && (p1 != 0 || p2 != 0)) {
	if (p1 == p2)
		printf(" port %u", p1);
	else
		printf(" port %u:%u", p1, p2);
}
break;
case PF_POOL_RDR:
if (p1) {
	printf(" port %u", p1);
	if (p2 && (p2 != p1))
		printf(":%u", p2);
}
break;
default:
break;
}
switch (pool->opts & PF_POOL_TYPEMASK0x0f) {
case PF_POOL_NONE:
break;
case PF_POOL_BITMASK:
printf(" bitmask");
break;
case PF_POOL_RANDOM:
printf(" random");
break;
case PF_POOL_SRCHASH:
printf(" source-hash 0x%08x%08x%08x%08x",
    pool->key.key32pfk.key32[0], pool->key.key32pfk.key32[1],
    pool->key.key32pfk.key32[2], pool->key.key32pfk.key32[3]);
break;
case PF_POOL_ROUNDROBIN:
printf(" round-robin");
break;
case PF_POOL_LEASTSTATES:
printf(" least-states");
break;
}
if (pool->opts & PF_POOL_STICKYADDR0x20)
printf(" sticky-address");
if (id == PF_POOL_NAT && p1 == 0 && p2 == 0)
printf(" static-port");
521}

523const char	*pf_reasons[PFRES_MAX17+1] = PFRES_NAMES{ "match", "bad-offset", "fragment", "short", "normalize", "memory"
, "bad-timestamp", "congestion", "ip-option", "proto-cksum", "state-mismatch"
, "state-insert", "state-limit", "src-limit", "synproxy", "translate"
, "no-route", ((void *)0) };
524const char	*pf_lcounters[LCNT_MAX10+1] = LCNT_NAMES{ "max states per rule", "max-src-states", "max-src-nodes", "max-src-conn"
, "max-src-conn-rate", "overload table insertion", "overload flush states"
, "synfloods detected", "syncookies sent", "syncookies validated"
, ((void *)0) };
525const char	*pf_fcounters[FCNT_MAX3+1] = FCNT_NAMES{ "searches", "inserts", "removals", ((void *)0) };
526const char	*pf_scounters[FCNT_MAX3+1] = FCNT_NAMES{ "searches", "inserts", "removals", ((void *)0) };

528void
529print_status(struct pf_status *s, struct pfctl_watermarks *synflwats, int opts)
530{
char			statline[80], *running, *debug;
time_t			runtime = 0;
struct timespec		uptime;
int			i;
char			buf[PF_MD5_DIGEST_LENGTH16 * 2 + 1];
static const char	hex[] = "0123456789abcdef";

if (!clock_gettime(CLOCK_BOOTTIME6, &uptime))
runtime = uptime.tv_sec - s->since;
running = s->running ? "Enabled" : "Disabled";

if (runtime) {
unsigned int	sec, min, hrs;
time_t		day = runtime;

sec = day % 60;
day /= 60;
min = day % 60;
day /= 60;
hrs = day % 24;
day /= 24;
snprintf(statline, sizeof(statline),
    "Status: %s for %lld days %.2u:%.2u:%.2u",
    running, (long long)day, hrs, min, sec);
} else
snprintf(statline, sizeof(statline), "Status: %s", running);
printf("%-44s", statline);
if (asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)) != -1) {
printf("%15s\n\n", debug);
free(debug);
}

if (opts & PF_OPT_VERBOSE0x00004) {
printf("Hostid:   0x%08x\n", ntohl(s->hostid)(__uint32_t)(__builtin_constant_p(s->hostid) ? (__uint32_t
)(((__uint32_t)(s->hostid) & 0xff) << 24 | ((__uint32_t
)(s->hostid) & 0xff00) << 8 | ((__uint32_t)(s->
hostid) & 0xff0000) >> 8 | ((__uint32_t)(s->hostid
) & 0xff000000) >> 24) : __swap32md(s->hostid)));

for (i = 0; i < PF_MD5_DIGEST_LENGTH16; i++) {
	buf[i + i] = hex[s->pf_chksum[i] >> 4];
	buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f];
}
buf[i + i] = '\0';
printf("Checksum: 0x%s\n\n", buf);
}

if (s->ifname[0] != 0) {
printf("Interface Stats for %-16s %5s %16s\n",
    s->ifname, "IPv4", "IPv6");
printf("  %-25s %14llu %16llu\n", "Bytes In",
    (unsigned long long)s->bcounters[0][0],
    (unsigned long long)s->bcounters[1][0]);
printf("  %-25s %14llu %16llu\n", "Bytes Out",
    (unsigned long long)s->bcounters[0][1],
    (unsigned long long)s->bcounters[1][1]);
printf("  Packets In\n");
printf("    %-23s %14llu %16llu\n", "Passed",
    (unsigned long long)s->pcounters[0][0][PF_PASS],
    (unsigned long long)s->pcounters[1][0][PF_PASS]);
printf("    %-23s %14llu %16llu\n", "Blocked",
    (unsigned long long)s->pcounters[0][0][PF_DROP],
    (unsigned long long)s->pcounters[1][0][PF_DROP]);
printf("  Packets Out\n");
printf("    %-23s %14llu %16llu\n", "Passed",
    (unsigned long long)s->pcounters[0][1][PF_PASS],
    (unsigned long long)s->pcounters[1][1][PF_PASS]);
printf("    %-23s %14llu %16llu\n\n", "Blocked",
    (unsigned long long)s->pcounters[0][1][PF_DROP],
    (unsigned long long)s->pcounters[1][1][PF_DROP]);
}
printf("%-27s %14s %16s\n", "State Table", "Total", "Rate");
printf("  %-25s %14u %14s\n", "current entries", s->states, "");
printf("  %-25s %14u %14s\n", "half-open tcp", s->states_halfopen, "");
for (i = 0; i < FCNT_MAX3; i++) {
printf("  %-25s %14llu ", pf_fcounters[i],
	    (unsigned long long)s->fcounters[i]);
if (runtime > 0)
	printf("%14.1f/s\n",
	    (double)s->fcounters[i] / (double)runtime);
else
	printf("%14s\n", "");
}
if (opts & PF_OPT_VERBOSE0x00004) {
printf("Source Tracking Table\n");
printf("  %-25s %14u %14s\n", "current entries",
    s->src_nodes, "");
for (i = 0; i < SCNT_MAX3; i++) {
	printf("  %-25s %14lld ", pf_scounters[i],
		    s->scounters[i]);
	if (runtime > 0)
		printf("%14.1f/s\n",
		    (double)s->scounters[i] / (double)runtime);
	else
		printf("%14s\n", "");
}
}
printf("Counters\n");
for (i = 0; i < PFRES_MAX17; i++) {
printf("  %-25s %14llu ", pf_reasons[i],
    (unsigned long long)s->counters[i]);
if (runtime > 0)
	printf("%14.1f/s\n",
	    (double)s->counters[i] / (double)runtime);
else
	printf("%14s\n", "");
}
if (opts & PF_OPT_VERBOSE0x00004) {
printf("Limit Counters\n");
for (i = 0; i < LCNT_MAX10; i++) {
	printf("  %-25s %14lld ", pf_lcounters[i],
		    s->lcounters[i]);
	if (runtime > 0)
		printf("%14.1f/s\n",
		    (double)s->lcounters[i] / (double)runtime);
	else
		printf("%14s\n", "");
}
}
if (opts & PF_OPT_VERBOSE0x00004) {
printf("Adaptive Syncookies Watermarks\n");
printf("  %-25s %14d states\n", "start", synflwats->hi);
printf("  %-25s %14d states\n", "end", synflwats->lo);
}
651}

653void
654print_src_node(struct pf_src_node *sn, int opts)
655{
struct pf_addr_wrap aw;
int min, sec;

memset(&aw, 0, sizeof(aw));
if (sn->af == AF_INET2)
aw.v.a.mask.addr32pfa.addr32[0] = 0xffffffff;
else
memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));

aw.v.a.addr = sn->addr;
print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE20x00080);

if (!PF_AZERO(&sn->raddr, sn->af)((sn->af == 2 && !(&sn->raddr)->pfa.addr32
[0]) || (sn->af == 24 && !(&sn->raddr)->
pfa.addr32[0] && !(&sn->raddr)->pfa.addr32[
1] && !(&sn->raddr)->pfa.addr32[2] &&
 !(&sn->raddr)->pfa.addr32[3] ))) {
if (sn->type == PF_SN_NAT)
	printf(" nat-to ");
else if (sn->type == PF_SN_RDR)
	printf(" rdr-to ");
else if (sn->type == PF_SN_ROUTE)
	printf(" route-to ");
else
	printf(" ??? (%u) ", sn->type);
aw.v.a.addr = sn->raddr;
print_addr(&aw, sn->naf ? sn->naf : sn->af,
    opts & PF_OPT_VERBOSE20x00080);
}

printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states,
   sn->conn, sn->conn_rate.count / 1000,
   (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds);
if (opts & PF_OPT_VERBOSE0x00004) {
sec = sn->creation % 60;
sn->creation /= 60;
min = sn->creation % 60;
sn->creation /= 60;
printf("   age %.2u:%.2u:%.2u", sn->creation, min, sec);
if (sn->states == 0) {
	sec = sn->expire % 60;
	sn->expire /= 60;
	min = sn->expire % 60;
	sn->expire /= 60;
	printf(", expires in %.2u:%.2u:%.2u",
	    sn->expire, min, sec);
}
printf(", %llu pkts, %llu bytes",
    sn->packets[0] + sn->packets[1],
    sn->bytes[0] + sn->bytes[1]);
if (sn->rule.nr != -1)
	printf(", rule %u", sn->rule.nr);
printf("\n");
}
706}

708void
709print_rule(struct pf_rule *r, const char *anchor_call, int opts)
710{
static const char *actiontypes[] = { "pass", "block", "scrub",
   "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr",
   "", "", "match"};
static const char *anchortypes[] = { "anchor", "anchor", "anchor",
   "anchor", "nat-anchor", "nat-anchor", "binat-anchor",
   "binat-anchor", "rdr-anchor", "rdr-anchor" };
int	i, ropts;
int	verbose = opts & (PF_OPT_VERBOSE20x00080 | PF_OPT_DEBUG0x00200);
char	*p;

if ((r->rule_flag & PFRULE_EXPIRED0x00400000) && (!verbose))
return;

if (verbose)
printf("@%d ", r->nr);

if (r->action > PF_MATCH)
printf("action(%d)", r->action);
else if (anchor_call[0]) {
p = strrchr(anchor_call, '/');
if (p ? p[1] == '_' : anchor_call[0] == '_')
	printf("%s", anchortypes[r->action]);
else
	printf("%s \"%s\"", anchortypes[r->action],
	    anchor_call);
} else
printf("%s", actiontypes[r->action]);
if (r->action == PF_DROP) {
if (r->rule_flag & PFRULE_RETURN0x0008)
	printf(" return");
else if (r->rule_flag & PFRULE_RETURNRST0x0001) {
	if (!r->return_ttl)
		printf(" return-rst");
	else
		printf(" return-rst(ttl %d)", r->return_ttl);
} else if (r->rule_flag & PFRULE_RETURNICMP0x0004) {
	const struct icmpcodeent	*ic, *ic6;

	ic = geticmpcodebynumber(r->return_icmp >> 8,
	    r->return_icmp & 255, AF_INET2);
	ic6 = geticmpcodebynumber(r->return_icmp6 >> 8,
	    r->return_icmp6 & 255, AF_INET624);

	switch (r->af) {
	case AF_INET2:
		printf(" return-icmp");
		if (ic == NULL((void *)0))
			printf("(%u)", r->return_icmp & 255);
		else
			printf("(%s)", ic->name);
		break;
	case AF_INET624:
		printf(" return-icmp6");
		if (ic6 == NULL((void *)0))
			printf("(%u)", r->return_icmp6 & 255);
		else
			printf("(%s)", ic6->name);
		break;
	default:
		printf(" return-icmp");
		if (ic == NULL((void *)0))
			printf("(%u, ", r->return_icmp & 255);
		else
			printf("(%s, ", ic->name);
		if (ic6 == NULL((void *)0))
			printf("%u)", r->return_icmp6 & 255);
		else
			printf("%s)", ic6->name);
		break;
	}
} else
	printf(" drop");
}
if (r->direction == PF_IN)
printf(" in");
else if (r->direction == PF_OUT)
printf(" out");
if (r->log) {
printf(" log");
if (r->log & ~PF_LOG0x01 || r->logif) {
	int count = 0;

	printf(" (");
	if (r->log & PF_LOG_ALL0x02)
		printf("%sall", count++ ? ", " : "");
	if (r->log & PF_LOG_MATCHES0x10)
		printf("%smatches", count++ ? ", " : "");
	if (r->log & PF_LOG_USER0x04)
		printf("%suser", count++ ? ", " : "");
	if (r->logif)
		printf("%sto pflog%u", count++ ? ", " : "",
		    r->logif);
	printf(")");
}
}
if (r->quick)
printf(" quick");
if (r->ifname[0]) {
if (r->ifnot)
	printf(" on ! %s", r->ifname);
else
	printf(" on %s", r->ifname);
}
if (r->onrdomain >= 0) {
if (r->ifnot)
	printf(" on ! rdomain %d", r->onrdomain);
else
	printf(" on rdomain %d", r->onrdomain);
}
if (r->af) {
if (r->af == AF_INET2)
	printf(" inet");
else
	printf(" inet6");
}
if (r->proto) {
struct protoent	*p;

if ((p = getprotobynumber(r->proto)) != NULL((void *)0))
	printf(" proto %s", p->p_name);
else
	printf(" proto %u", r->proto);
}
print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto,
   opts);
if (r->rcv_ifname[0])
printf(" %sreceived-on %s", r->rcvifnot ? "!" : "",
    r->rcv_ifname);
if (r->uid.op)
print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user");
if (r->gid.op)
print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group");
if (r->flags || r->flagset) {
printf(" flags ");
print_flags(r->flags);
printf("/");
print_flags(r->flagset);
} else if ((r->action == PF_PASS || r->action == PF_MATCH) &&
   (!r->proto || r->proto == IPPROTO_TCP6) &&
   !(r->rule_flag & PFRULE_FRAGMENT0x0002) &&
   !anchor_call[0] && r->keep_state)
printf(" flags any");
if (r->type) {
const struct icmptypeent	*it;

it = geticmptypebynumber(r->type-1, r->af);
if (r->af != AF_INET624)
	printf(" icmp-type");
else
	printf(" icmp6-type");
if (it != NULL((void *)0))
	printf(" %s", it->name);
else
	printf(" %u", r->type-1);
if (r->code) {
	const struct icmpcodeent	*ic;

	ic = geticmpcodebynumber(r->type-1, r->code-1, r->af);
	if (ic != NULL((void *)0))
		printf(" code %s", ic->name);
	else
		printf(" code %u", r->code-1);
}
}
if (r->tos)
printf(" tos 0x%2.2x", r->tos);
if (r->prio)
printf(" prio %u", r->prio == PF_PRIO_ZERO0xff ? 0 : r->prio);
if (r->pktrate.limit)
printf(" max-pkt-rate %u/%u", r->pktrate.limit,
    r->pktrate.seconds);

if (r->scrub_flags & PFSTATE_SETMASK(0x0040|0x0200) || r->qname[0] ||
   r->rule_flag & PFRULE_SETDELAY0x0080) {
char *comma = "";
printf(" set (");
if (r->scrub_flags & PFSTATE_SETPRIO0x0200) {
	if (r->set_prio[0] == r->set_prio[1])
		printf("%sprio %u", comma, r->set_prio[0]);
	else
		printf("%sprio(%u, %u)", comma, r->set_prio[0],
		    r->set_prio[1]);
	comma = ", ";
}
if (r->qname[0]) {
	if (r->pqname[0])
		printf("%squeue(%s, %s)", comma, r->qname,
		    r->pqname);
	else
		printf("%squeue %s", comma, r->qname);
	comma = ", ";
}
if (r->scrub_flags & PFSTATE_SETTOS0x0040) {
	printf("%stos 0x%2.2x", comma, r->set_tos);
	comma = ", ";
}
if (r->rule_flag & PFRULE_SETDELAY0x0080) {
	printf("%sdelay %u", comma, r->delay);
	comma = ", ";
}
printf(")");
}

ropts = 0;
if (r->max_states || r->max_src_nodes || r->max_src_states)
ropts = 1;
if (r->rule_flag & PFRULE_NOSYNC0x0010)
ropts = 1;
if (r->rule_flag & PFRULE_SRCTRACK0x0020)
ropts = 1;
if (r->rule_flag & PFRULE_IFBOUND0x00010000)
ropts = 1;
if (r->rule_flag & PFRULE_STATESLOPPY0x00020000)
ropts = 1;
if (r->rule_flag & PFRULE_PFLOW0x00040000)
ropts = 1;
for (i = 0; !ropts && i < PFTM_MAX; ++i)
if (r->timeout[i])
	ropts = 1;

if (!r->keep_state && r->action == PF_PASS && !anchor_call[0])
printf(" no state");
else if (r->keep_state == PF_STATE_NORMAL0x1 && ropts)
printf(" keep state");
else if (r->keep_state == PF_STATE_MODULATE0x2)
printf(" modulate state");
else if (r->keep_state == PF_STATE_SYNPROXY0x3)
printf(" synproxy state");
if (r->prob) {
char	buf[20];

snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX(2147483647 *2U +1U)+1.0));
for (i = strlen(buf)-1; i > 0; i--) {
	if (buf[i] == '0')
		buf[i] = '\0';
	else {
		if (buf[i] == '.')
			buf[i] = '\0';
		break;
	}
}
printf(" probability %s%%", buf);
}
if (ropts) {
printf(" (");
if (r->max_states) {
	printf("max %u", r->max_states);
	ropts = 0;
}
if (r->rule_flag & PFRULE_NOSYNC0x0010) {
	if (!ropts)
		printf(", ");
	printf("no-sync");
	ropts = 0;
}
if (r->rule_flag & PFRULE_SRCTRACK0x0020) {
	if (!ropts)
		printf(", ");
	printf("source-track");
	if (r->rule_flag & PFRULE_RULESRCTRACK0x0040)
		printf(" rule");
	else
		printf(" global");
	ropts = 0;
}
if (r->max_src_states) {
	if (!ropts)
		printf(", ");
	printf("max-src-states %u", r->max_src_states);
	ropts = 0;
}
if (r->max_src_conn) {
	if (!ropts)
		printf(", ");
	printf("max-src-conn %u", r->max_src_conn);
	ropts = 0;
}
if (r->max_src_conn_rate.limit) {
	if (!ropts)
		printf(", ");
	printf("max-src-conn-rate %u/%u",
	    r->max_src_conn_rate.limit,
	    r->max_src_conn_rate.seconds);
	ropts = 0;
}
if (r->max_src_nodes) {
	if (!ropts)
		printf(", ");
	printf("max-src-nodes %u", r->max_src_nodes);
	ropts = 0;
}
if (r->overload_tblname[0]) {
	if (!ropts)
		printf(", ");
	printf("overload <%s>", r->overload_tblname);
	if (r->flush)
		printf(" flush");
	if (r->flush & PF_FLUSH_GLOBAL0x02)
		printf(" global");
}
if (r->rule_flag & PFRULE_IFBOUND0x00010000) {
	if (!ropts)
		printf(", ");
	printf("if-bound");
	ropts = 0;
}
if (r->rule_flag & PFRULE_STATESLOPPY0x00020000) {
	if (!ropts)
		printf(", ");
	printf("sloppy");
	ropts = 0;
}
if (r->rule_flag & PFRULE_PFLOW0x00040000) {
	if (!ropts)
		printf(", ");
	printf("pflow");
	ropts = 0;
}
for (i = 0; i < PFTM_MAX; ++i)
	if (r->timeout[i]) {
		int j;

		if (!ropts)
			printf(", ");
		ropts = 0;
		for (j = 0; pf_timeouts[j].name != NULL((void *)0);
		    ++j)
			if (pf_timeouts[j].timeout == i)
				break;
		printf("%s %u", pf_timeouts[j].name == NULL((void *)0) ?
		    "inv.timeout" : pf_timeouts[j].name,
		    r->timeout[i]);
	}
printf(")");
}

if (r->rule_flag & PFRULE_FRAGMENT0x0002)
printf(" fragment");

if (r->scrub_flags & PFSTATE_SCRUBMASK(0x0020|0x0080|0x0100) || r->min_ttl || r->max_mss) {
printf(" scrub (");
ropts = 1;
if (r->scrub_flags & PFSTATE_NODF0x0020) {
	printf("no-df");
	ropts = 0;
}
if (r->scrub_flags & PFSTATE_RANDOMID0x0080) {
	if (!ropts)
		printf(" ");
	printf("random-id");
	ropts = 0;
}
if (r->min_ttl) {
	if (!ropts)
		printf(" ");
	printf("min-ttl %d", r->min_ttl);
	ropts = 0;
}
if (r->scrub_flags & PFSTATE_SCRUB_TCP0x0100) {
	if (!ropts)
		printf(" ");
	printf("reassemble tcp");
	ropts = 0;
}
if (r->max_mss) {
	if (!ropts)
		printf(" ");
	printf("max-mss %d", r->max_mss);
	ropts = 0;
}
printf(")");
}

if (r->allow_opts)
printf(" allow-opts");
if (r->label[0])
printf(" label \"%s\"", r->label);
if (r->rule_flag & PFRULE_ONCE0x00100000)
printf(" once");
if (r->tagname[0])
printf(" tag %s", r->tagname);
if (r->match_tagname[0]) {
if (r->match_tag_not)
	printf(" !");
printf(" tagged %s", r->match_tagname);
}
if (r->rtableid != -1)
printf(" rtable %u", r->rtableid);
switch (r->divert.type) {
case PF_DIVERT_NONE:
break;
case PF_DIVERT_TO: {
printf(" divert-to ");
print_addr_str(r->af, &r->divert.addr);
printf(" port %u", ntohs(r->divert.port)(__uint16_t)(__builtin_constant_p(r->divert.port) ? (__uint16_t
)(((__uint16_t)(r->divert.port) & 0xffU) << 8 | (
(__uint16_t)(r->divert.port) & 0xff00U) >> 8) : __swap16md
(r->divert.port)));
break;
}
case PF_DIVERT_REPLY:
printf(" divert-reply");
break;
case PF_DIVERT_PACKET:
printf(" divert-packet port %u", ntohs(r->divert.port)(__uint16_t)(__builtin_constant_p(r->divert.port) ? (__uint16_t
)(((__uint16_t)(r->divert.port) & 0xffU) << 8 | (
(__uint16_t)(r->divert.port) & 0xff00U) >> 8) : __swap16md
(r->divert.port)));
break;
default:
printf(" divert ???");
break;
}

if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE &&
   r->rule_flag & PFRULE_AFTO0x00200000) {
printf(" af-to %s from ", r->naf == AF_INET2 ? "inet" : "inet6");
print_pool(&r->nat, r->nat.proxy_port[0],
    r->nat.proxy_port[1], r->naf ? r->naf : r->af,
    PF_POOL_NAT, verbose);
if (r->rdr.addr.type != PF_ADDR_NONE) {
	printf(" to ");
	print_pool(&r->rdr, r->rdr.proxy_port[0],
	    r->rdr.proxy_port[1], r->naf ? r->naf : r->af,
	    PF_POOL_RDR, verbose);
}
} else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) {
printf (" nat-to ");
print_pool(&r->nat, r->nat.proxy_port[0],
    r->nat.proxy_port[1], r->naf ? r->naf : r->af,
    PF_POOL_NAT, verbose);
} else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) {
printf (" rdr-to ");
print_pool(&r->rdr, r->rdr.proxy_port[0],
    r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose);
}
if (r->rt) {
if (r->rt == PF_ROUTETO)
	printf(" route-to");
else if (r->rt == PF_REPLYTO)
	printf(" reply-to");
else if (r->rt == PF_DUPTO)
	printf(" dup-to");
printf(" ");
print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose);
}
1151}

1153void
1154print_tabledef(const char *name, int flags, int addrs,
  struct node_tinithead *nodes)
1156{
struct node_tinit	*ti, *nti;
struct node_host	*h;

printf("table <%s>", name);
if (flags & PFR_TFLAG_CONST0x00000002)
printf(" const");
if (flags & PFR_TFLAG_PERSIST0x00000001)
printf(" persist");
if (flags & PFR_TFLAG_COUNTERS0x00000040)
printf(" counters");
SIMPLEQ_FOREACH(ti, nodes, entries)for((ti) = ((nodes)->sqh_first); (ti) != ((void *)0); (ti)
 = ((ti)->entries.sqe_next)) {
if (ti->file) {
	printf(" file \"%s\"", ti->file);
	continue;
}
printf(" {");
for (;;) {
	for (h = ti->host; h != NULL((void *)0); h = h->next) {
		printf(h->not ? " !" : " ");
		print_addr(&h->addr, h->af, 0);
		if (h->ifname)
			printf("@%s", h->ifname);
	}
	nti = SIMPLEQ_NEXT(ti, entries)((ti)->entries.sqe_next);
	if (nti != NULL((void *)0) && nti->file == NULL((void *)0))
		ti = nti;	/* merge lists */
	else
		break;
}
printf(" }");
}
if (addrs && SIMPLEQ_EMPTY(nodes)(((nodes)->sqh_first) == ((void *)0)))
printf(" { }");
printf("\n");
1191}

1193void
1194print_bwspec(const char *prefix, struct pf_queue_bwspec *bw)
1195{
u_int	rate;
int	i;
static const char unit[] = " KMG";

if (bw->percent)
printf("%s%u%%", prefix, bw->percent);
else if (bw->absolute) {
rate = bw->absolute;
for (i = 0; rate >= 1000 && i <= 3 && (rate % 1000 == 0); i++)
	rate /= 1000;
printf("%s%u%c", prefix, rate, unit[i]);
}
1208}

1210void
1211print_scspec(const char *prefix, struct pf_queue_scspec *sc)
1212{
print_bwspec(prefix, &sc->m2);
if (sc->d) {
printf(" burst ");
print_bwspec("", &sc->m1);
printf(" for %ums", sc->d);
}
1219}

1221void
1222print_queuespec(struct pf_queuespec *q)
1223{
printf("queue %s", q->qname);
if (q->parent[0])
printf(" parent %s", q->parent);
else if (q->ifname[0])
printf(" on %s", q->ifname);
if (q->flags & PFQS_FLOWQUEUE0x0001) {
printf(" flows %u", q->flowqueue.flows);
if (q->flowqueue.quantum > 0)
	printf(" quantum %u", q->flowqueue.quantum);
if (q->flowqueue.interval > 0)
	printf(" interval %ums",
	    q->flowqueue.interval / 1000000);
if (q->flowqueue.target > 0)
	printf(" target %ums",
	    q->flowqueue.target / 1000000);
}
if (q->linkshare.m1.absolute || q->linkshare.m2.absolute) {
print_scspec(" bandwidth ", &q->linkshare);
print_scspec(", min ", &q->realtime);
print_scspec(", max ", &q->upperlimit);
}
if (q->flags & PFQS_DEFAULT0x1000)
printf(" default");
if (q->qlimit)
printf(" qlimit %u", q->qlimit);
printf("\n");
1250}

1252int
1253parse_flags(char *s)
1254{
char		*p, *q;
u_int8_t	 f = 0;

for (p = s; *p; p++) {
if ((q = strchr(tcpflags, *p)) == NULL((void *)0))
	return -1;
else
	f |= 1 << (q - tcpflags);
}
return (f ? f : PF_TH_ALL0xFF);
1265}

1267void
1268set_ipmask(struct node_host *h, int bb)
1269{
struct pf_addr	*m, *n;
int		 i, j = 0;
u_int8_t	 b;

m = &h->addr.v.a.mask;
memset(m, 0, sizeof(*m));

if (bb == -1)
b = h->af == AF_INET2 ? 32 : 128;
else
b = bb;

while (b >= 32) {
m->addr32pfa.addr32[j++] = 0xffffffff;
b -= 32;
}
for (i = 31; i > 31-b; --i)
m->addr32pfa.addr32[j] |= (1 << i);
if (b)
m->addr32pfa.addr32[j] = htonl(m->addr32[j])(__uint32_t)(__builtin_constant_p(m->pfa.addr32[j]) ? (__uint32_t
)(((__uint32_t)(m->pfa.addr32[j]) & 0xff) << 24 |
 ((__uint32_t)(m->pfa.addr32[j]) & 0xff00) << 8 |
 ((__uint32_t)(m->pfa.addr32[j]) & 0xff0000) >> 8
 | ((__uint32_t)(m->pfa.addr32[j]) & 0xff000000) >>
 24) : __swap32md(m->pfa.addr32[j]));

/* Mask off bits of the address that will never be used. */
n = &h->addr.v.a.addr;
if (h->addr.type == PF_ADDR_ADDRMASK)
for (i = 0; i < 4; i++)
	n->addr32pfa.addr32[i] = n->addr32pfa.addr32[i] & m->addr32pfa.addr32[i];
1296}

1298int
1299check_netmask(struct node_host *h, sa_family_t af)
1300{
struct node_host	*n = NULL((void *)0);
struct pf_addr		*m;

for (n = h; n != NULL((void *)0); n = n->next) {
if (h->addr.type == PF_ADDR_TABLE)
	continue;
m = &h->addr.v.a.mask;
/* netmasks > 32 bit are invalid on v4 */
if (af == AF_INET2 &&
    (m->addr32pfa.addr32[1] || m->addr32pfa.addr32[2] || m->addr32pfa.addr32[3])) {
	fprintf(stderr(&__sF[2]), "netmask %u invalid for IPv4 address\n",
	    unmask(m));
	return (1);
}
}
return (0);
1317}

1319struct node_host *
1320gen_dynnode(struct node_host *h, sa_family_t af)
1321{
struct node_host	*n;

if (h->addr.type != PF_ADDR_DYNIFTL)
return (NULL((void *)0));

if ((n = calloc(1, sizeof(*n))) == NULL((void *)0))
return (NULL((void *)0));
bcopy(h, n, sizeof(*n));
n->ifname = NULL((void *)0);
n->next = NULL((void *)0);
n->tail = NULL((void *)0);

/* fix up netmask */
if (af == AF_INET2 && unmask(&n->addr.v.a.mask) > 32)
set_ipmask(n, 32);

return (n);
1339}

1341/* interface lookup routines */

1343struct node_host	*iftab;

1345void
1346ifa_load(void)
1347{
struct ifaddrs		*ifap, *ifa;
struct node_host	*n = NULL((void *)0), *h = NULL((void *)0);

if (getifaddrs(&ifap) == -1)
err(1, "getifaddrs");

for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr == NULL((void *)0) ||
    !(ifa->ifa_addr->sa_family == AF_INET2 ||
    ifa->ifa_addr->sa_family == AF_INET624 ||
    ifa->ifa_addr->sa_family == AF_LINK18))
		continue;
n = calloc(1, sizeof(struct node_host));
if (n == NULL((void *)0))
	err(1, "%s: calloc", __func__);
n->af = ifa->ifa_addr->sa_family;
n->ifa_flags = ifa->ifa_flags;
1365#ifdef __KAME__
if (n->af == AF_INET624 &&
    IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *)(((&((struct sockaddr_in6 *) ifa->ifa_addr)->sin6_addr
)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&((struct
 sockaddr_in6 *) ifa->ifa_addr)->sin6_addr)->__u6_addr
.__u6_addr8[1] & 0xc0) == 0x80))
    ifa->ifa_addr)->sin6_addr)(((&((struct sockaddr_in6 *) ifa->ifa_addr)->sin6_addr
)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&((struct
 sockaddr_in6 *) ifa->ifa_addr)->sin6_addr)->__u6_addr
.__u6_addr8[1] & 0xc0) == 0x80)) &&
    ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id ==
    0) {
	struct sockaddr_in6	*sin6;

	sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
	sin6->sin6_scope_id = sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[2] << 8 |
	    sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[3];
	sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[2] = 0;
	sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[3] = 0;
}
1379#endif
n->ifindex = 0;
if (n->af == AF_LINK18)
	n->ifindex = ((struct sockaddr_dl *)
	    ifa->ifa_addr)->sdl_index;
else {
	copy_satopfaddr(&n->addr.v.a.addr, ifa->ifa_addr);
	ifa->ifa_netmask->sa_family = ifa->ifa_addr->sa_family;
	copy_satopfaddr(&n->addr.v.a.mask, ifa->ifa_netmask);
	if (ifa->ifa_broadaddrifa_dstaddr != NULL((void *)0)) {
		ifa->ifa_broadaddrifa_dstaddr->sa_family = ifa->ifa_addr->sa_family;
		copy_satopfaddr(&n->bcast, ifa->ifa_broadaddrifa_dstaddr);
	}
	if (ifa->ifa_dstaddr != NULL((void *)0)) {
		ifa->ifa_dstaddr->sa_family = ifa->ifa_addr->sa_family;
		copy_satopfaddr(&n->peer, ifa->ifa_dstaddr);
	}
	if (n->af == AF_INET624)
		n->ifindex = ((struct sockaddr_in6 *)
		    ifa->ifa_addr)->sin6_scope_id;
}
if ((n->ifname = strdup(ifa->ifa_name)) == NULL((void *)0))
	err(1, "%s: strdup", __func__);
n->next = NULL((void *)0);
n->tail = n;
if (h == NULL((void *)0))
	h = n;
else {
	h->tail->next = n;
	h->tail = n;
}
}

iftab = h;
freeifaddrs(ifap);
1414}

1416unsigned int
1417ifa_nametoindex(const char *ifa_name)
1418{
struct node_host	*p;

for (p = iftab; p; p = p->next) {
if (p->af == AF_LINK18 && strcmp(p->ifname, ifa_name) == 0)
	return (p->ifindex);
}
errno(*__errno()) = ENXIO6;
return (0);
1427}

1429char *
1430ifa_indextoname(unsigned int ifindex, char *ifa_name)
1431{
struct node_host	*p;

for (p = iftab; p; p = p->next) {
if (p->af == AF_LINK18 && ifindex == p->ifindex) {
	strlcpy(ifa_name, p->ifname, IFNAMSIZ16);
	return (ifa_name);
}
}
errno(*__errno()) = ENXIO6;
return (NULL((void *)0));
1442}

1444struct node_host *
1445ifa_exists(const char *ifa_name)
1446{
struct node_host	*n;
struct ifgroupreq	ifgr;
int			s;

if (iftab == NULL((void *)0))
18
←
Assuming 'iftab' is not equal to NULL→
19
←
Taking false branch→
ifa_load();

/* check whether this is a group */
if ((s = socket(AF_INET2, SOCK_DGRAM2, 0)) == -1)
20
←
Assuming the condition is false→
21
←
Taking false branch→
err(1, "socket");
bzero(&ifgr, sizeof(ifgr));
strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
 8) | ((138))), (caddr_t)&ifgr) == 0) {
22
←
Assuming the condition is true→
23
←
Taking true branch→
/* fake a node_host */
if ((n = calloc(1, sizeof(*n))) == NULL((void *)0))
24
←
Memory is allocated→
25
←
Assuming the condition is false→
26
←
Taking false branch→
	err(1, "calloc");
if ((n->ifname = strdup(ifa_name)) == NULL((void *)0))
27
←
Assuming the condition is false→
28
←
Taking false branch→
	err(1, "strdup");
close(s);
return (n);
}
close(s);

for (n = iftab; n; n = n->next) {
if (n->af == AF_LINK18 && !strncmp(n->ifname, ifa_name, IFNAMSIZ16))
	return (n);
}

return (NULL((void *)0));
1476}

1478struct node_host *
1479ifa_grouplookup(const char *ifa_name, int flags)
1480{
struct ifg_req		*ifg;
struct ifgroupreq	 ifgr;
int			 s, len;
struct node_host	*n, *h = NULL((void *)0);

if ((s = socket(AF_INET2, SOCK_DGRAM2, 0)) == -1)
err(1, "socket");
bzero(&ifgr, sizeof(ifgr));
strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
 8) | ((138))), (caddr_t)&ifgr) == -1) {
close(s);
return (NULL((void *)0));
}

len = ifgr.ifgr_len;
if ((ifgr.ifgr_groupsifgr_ifgru.ifgru_groups = calloc(1, len)) == NULL((void *)0))
err(1, "calloc");
if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
 8) | ((138))), (caddr_t)&ifgr) == -1)
err(1, "SIOCGIFGMEMB");

for (ifg = ifgr.ifgr_groupsifgr_ifgru.ifgru_groups; ifg && len >= sizeof(struct ifg_req);
   ifg++) {
len -= sizeof(struct ifg_req);
if ((n = ifa_lookup(ifg->ifgrq_memberifgrq_ifgrqu.ifgrqu_member, flags)) == NULL((void *)0))
	continue;
if (h == NULL((void *)0))
	h = n;
else {
	h->tail->next = n;
	h->tail = n->tail;
}
}
free(ifgr.ifgr_groupsifgr_ifgru.ifgru_groups);
close(s);

return (h);
1517}

1519struct node_host *
1520ifa_lookup(const char *ifa_name, int flags)
1521{
struct node_host	*p = NULL((void *)0), *h = NULL((void *)0), *n = NULL((void *)0);
int			 got4 = 0, got6 = 0;
const char		 *last_if = NULL((void *)0);

if ((h = ifa_grouplookup(ifa_name, flags)) != NULL((void *)0))
return (h);

if (!strncmp(ifa_name, "self", IFNAMSIZ16))
ifa_name = NULL((void *)0);

if (iftab == NULL((void *)0))
ifa_load();

for (p = iftab; p; p = p->next) {
if (ifa_skip_if(ifa_name, p))
	continue;
if ((flags & PFI_AFLAG_BROADCAST0x02) && p->af != AF_INET2)
	continue;
if ((flags & PFI_AFLAG_BROADCAST0x02) &&
    !(p->ifa_flags & IFF_BROADCAST0x2))
	continue;
if ((flags & PFI_AFLAG_BROADCAST0x02) && p->bcast.v4pfa.v4.s_addr == 0)
	continue;
if ((flags & PFI_AFLAG_PEER0x04) &&
    !(p->ifa_flags & IFF_POINTOPOINT0x10))
	continue;
if ((flags & PFI_AFLAG_NETWORK0x01) && p->ifindex > 0)
	continue;
if (last_if == NULL((void *)0) || strcmp(last_if, p->ifname))
	got4 = got6 = 0;
last_if = p->ifname;
if ((flags & PFI_AFLAG_NOALIAS0x08) && p->af == AF_INET2 && got4)
	continue;
if ((flags & PFI_AFLAG_NOALIAS0x08) && p->af == AF_INET624 && got6)
	continue;
if (p->af == AF_INET2)
	got4 = 1;
else
	got6 = 1;
n = calloc(1, sizeof(struct node_host));
if (n == NULL((void *)0))
	err(1, "%s: calloc", __func__);
n->af = p->af;
if (flags & PFI_AFLAG_BROADCAST0x02)
	memcpy(&n->addr.v.a.addr, &p->bcast,
	    sizeof(struct pf_addr));
else if (flags & PFI_AFLAG_PEER0x04)
	memcpy(&n->addr.v.a.addr, &p->peer,
	    sizeof(struct pf_addr));
else
	memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr,
	    sizeof(struct pf_addr));
if (flags & PFI_AFLAG_NETWORK0x01)
	set_ipmask(n, unmask(&p->addr.v.a.mask));
else
	set_ipmask(n, -1);
n->ifindex = p->ifindex;

n->next = NULL((void *)0);
n->tail = n;
if (h == NULL((void *)0))
	h = n;
else {
	h->tail->next = n;
	h->tail = n;
}
}
return (h);
1590}

1592int
1593ifa_skip_if(const char *filter, struct node_host *p)
1594{
int	n;

if (p->af != AF_INET2 && p->af != AF_INET624)
return (1);
if (filter == NULL((void *)0) || !*filter)
return (0);
if (!strcmp(p->ifname, filter))
return (0);	/* exact match */
n = strlen(filter);
if (n < 1 || n >= IFNAMSIZ16)
return (1);	/* sanity check */
if (filter[n-1] >= '0' && filter[n-1] <= '9')
return (1);	/* only do exact match in that case */
if (strncmp(p->ifname, filter, n))
return (1);	/* prefix doesn't match */
return (p->ifname[n] < '0' || p->ifname[n] > '9');
1611}

1613struct node_host *
1614host(const char *s, int opts)
1615{
struct node_host	*h = NULL((void *)0), *n;
int			 mask = -1;
char			*p, *ps;
const char		*errstr;

if ((ps = strdup(s)) == NULL((void *)0))
7
←
Assuming the condition is false→
8
←
Taking false branch→
err(1, "%s: strdup", __func__);

if ((p = strchr(ps, '/')) != NULL((void *)0)) {
9
←
Assuming the condition is false→
10
←
Taking false branch→
mask = strtonum(p+1, 0, 128, &errstr);
if (errstr) {
	fprintf(stderr(&__sF[2]), "netmask is %s: %s\n", errstr, p);
	goto error;
}
p[0] = '\0';
}

if ((h = host_if(ps, mask)) == NULL((void *)0) &&
11
←
Calling 'host_if'→
   (h = host_ip(ps, mask)) == NULL((void *)0) &&
   (h = host_dns(ps, mask, (opts & PF_OPT_NODNS0x01000))) == NULL((void *)0)) {
fprintf(stderr(&__sF[2]), "no IP address found for %s\n", s);
goto error;
}

for (n = h; n != NULL((void *)0); n = n->next) {
n->addr.type = PF_ADDR_ADDRMASK;
n->weight = 0;
}	

1645error:
free(ps);
return (h);
1648}

1650struct node_host *
1651host_if(const char *s, int mask)
1652{
struct node_host	*n, *h = NULL((void *)0);
char			*p, *ps;
int			 flags = 0;

if ((ps = strdup(s)) == NULL((void *)0))
12
←
Assuming the condition is false→
13
←
Taking false branch→
err(1, "host_if: strdup");
while ((p = strrchr(ps, ':')) != NULL((void *)0)) {
14
←
Assuming the condition is false→
15
←
Loop condition is false. Execution continues on line 1672→
if (!strcmp(p+1, "network"))
	flags |= PFI_AFLAG_NETWORK0x01;
else if (!strcmp(p+1, "broadcast"))
	flags |= PFI_AFLAG_BROADCAST0x02;
else if (!strcmp(p+1, "peer"))
	flags |= PFI_AFLAG_PEER0x04;
else if (!strcmp(p+1, "0"))
	flags |= PFI_AFLAG_NOALIAS0x08;
else
	goto error;
*p = '\0';
}
if (flags & (flags - 1) & PFI_AFLAG_MODEMASK0x07) { /* Yep! */
16
←
Taking false branch→
fprintf(stderr(&__sF[2]), "illegal combination of interface modifiers\n");
goto error;
}
if ((flags & (PFI_AFLAG_NETWORK0x01|PFI_AFLAG_BROADCAST0x02)) && mask > -1) {
fprintf(stderr(&__sF[2]), "network or broadcast lookup, but "
    "extra netmask given\n");
goto error;
}
if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ16)) {
17
←
Calling 'ifa_exists'→
29
←
Returned allocated memory→
/* interface with this name exists */
h = ifa_lookup(ps, flags);
30
←
Potential memory leak
if (mask > -1)
	for (n = h; n != NULL((void *)0); n = n->next)
		set_ipmask(n, mask);
}

1689error:
free(ps);
return (h);
1692}

1694struct node_host *
1695host_ip(const char *s, int mask)
1696{
struct addrinfo		 hints, *res;
struct node_host	*h = NULL((void *)0);

memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC0;
hints.ai_socktype = SOCK_DGRAM2; /*dummy*/
hints.ai_flags = AI_NUMERICHOST4;
if (getaddrinfo(s, NULL((void *)0), &hints, &res) == 0) {
h = calloc(1, sizeof(*h));
if (h == NULL((void *)0))
	err(1, "%s: calloc", __func__);
h->af = res->ai_family;
copy_satopfaddr(&h->addr.v.a.addr, res->ai_addr);
if (h->af == AF_INET624)
	h->ifindex =
	    ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
freeaddrinfo(res);
} else {	/* ie. for 10/8 parsing */
if (mask == -1)
	return (NULL((void *)0));
h = calloc(1, sizeof(*h));
if (h == NULL((void *)0))
	err(1, "%s: calloc", __func__);
h->af = AF_INET2;
if (inet_net_pton(AF_INET2, s, &h->addr.v.a.addr.v4pfa.v4,
    sizeof(h->addr.v.a.addr.v4pfa.v4)) == -1) {
	free(h);
	return (NULL((void *)0));
}
}
set_ipmask(h, mask);
h->ifname = NULL((void *)0);
h->next = NULL((void *)0);
h->tail = h;

return (h);
1733}

1735struct node_host *
1736host_dns(const char *s, int mask, int numeric)
1737{
struct addrinfo		 hints, *res0, *res;
struct node_host	*n, *h = NULL((void *)0);
int			 noalias = 0, got4 = 0, got6 = 0;
char			*p, *ps;

if ((ps = strdup(s)) == NULL((void *)0))
err(1, "host_dns: strdup");
if ((p = strrchr(ps, ':')) != NULL((void *)0) && !strcmp(p, ":0")) {
noalias = 1;
*p = '\0';
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = PF_UNSPEC0;
hints.ai_socktype = SOCK_STREAM1; /* DUMMY */
if (numeric)
hints.ai_flags = AI_NUMERICHOST4;
if (getaddrinfo(ps, NULL((void *)0), &hints, &res0) != 0)
goto error;

for (res = res0; res; res = res->ai_next) {
if (res->ai_family != AF_INET2 &&
    res->ai_family != AF_INET624)
	continue;
if (noalias) {
	if (res->ai_family == AF_INET2) {
		if (got4)
			continue;
		got4 = 1;
	} else {
		if (got6)
			continue;
		got6 = 1;
	}
}
n = calloc(1, sizeof(struct node_host));
if (n == NULL((void *)0))
	err(1, "host_dns: calloc");
n->ifname = NULL((void *)0);
n->af = res->ai_family;
copy_satopfaddr(&n->addr.v.a.addr, res->ai_addr);
if (res->ai_family == AF_INET624)
	n->ifindex =
	    ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
set_ipmask(n, mask);
n->next = NULL((void *)0);
n->tail = n;
if (h == NULL((void *)0))
	h = n;
else {
	h->tail->next = n;
	h->tail = n;
}
}
freeaddrinfo(res0);
1792error:
free(ps);

return (h);
1796}

1798/*
* convert a hostname to a list of addresses and put them in the given buffer.
* test:
*	if set to 1, only simple addresses are accepted (no netblock, no "!").
*/
1803int
1804append_addr(struct pfr_buffer *b, char *s, int test, int opts)
1805{
static int 		 previous = 0;
static int		 expect = 0;
struct pfr_addr		*a;
struct node_host	*h, *n;
char			*r;
const char		*errstr;
int			 rv, not = 0, i = 0;
u_int16_t		 weight;

/* skip weight if given */
if (strcmp(s, "weight") == 0) {
1
Assuming the condition is false→
2
←
Taking false branch→
expect = 1;
return (1); /* expecting further call */
}

/* check if previous host is set */
if (expect2.1
'expect' is 0
) {
3
←
Taking false branch→
/* parse and append load balancing weight */
weight = strtonum(s, 1, USHRT_MAX(32767 *2 +1), &errstr);
if (errstr) {
	fprintf(stderr(&__sF[2]), "failed to convert weight %s\n", s);
	return (-1);
}
if (previous != -1) {
	PFRB_FOREACH(a, b)for ((a) = pfr_buf_next((b), ((void *)0)); (a) != ((void *)0)
; (a) = pfr_buf_next((b), (a))) {
		if (++i >= previous) {
			a->pfra_weight = weight;
			a->pfra_type = PFRKE_COST;
		}
	}
}

expect = 0;
return (0);
}

for (r = s; *r == '!'; r++)
4
←
Assuming the condition is false→
5
←
Loop condition is false. Execution continues on line 1844→
not = !not;
if ((n = host(r, opts)) == NULL((void *)0)) {
6
←
Calling 'host'→
errno(*__errno()) = 0;
return (-1);
}
rv = append_addr_host(b, n, test, not);
previous = b->pfrb_size;
do {
h = n;
n = n->next;
free(h);
} while (n != NULL((void *)0));
return (rv);
1856}

1858/*
* same as previous function, but with a pre-parsed input and the ability
* to "negate" the result. Does not free the node_host list.
* not:
*      setting it to 1 is equivalent to adding "!" in front of parameter s.
*/
1864int
1865append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not)
1866{
int			 bits;
struct pfr_addr		 addr;

do {
bzero(&addr, sizeof(addr));
addr.pfra_not = n->not ^ not;
addr.pfra_af = n->af;
addr.pfra_net = unmask(&n->addr.v.a.mask);
if (n->ifname) {
	if (strlcpy(addr.pfra_ifname, n->ifname,
 	   sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname))
		errx(1, "append_addr_host: strlcpy");
	addr.pfra_type = PFRKE_ROUTE;
}
if (n->weight > 0) {
	addr.pfra_weight = n->weight;
	addr.pfra_type = PFRKE_COST;
}
switch (n->af) {
case AF_INET2:
	addr.pfra_ip4addrpfra_u._pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32pfa.addr32[0];
	bits = 32;
	break;
case AF_INET624:
	memcpy(&addr.pfra_ip6addrpfra_u._pfra_ip6addr, &n->addr.v.a.addr.v6pfa.v6,
	    sizeof(struct in6_addr));
	bits = 128;
	break;
default:
	errno(*__errno()) = EINVAL22;
	return (-1);
}
if ((test && (not || addr.pfra_net != bits)) ||
    addr.pfra_net > bits) {
	errno(*__errno()) = EINVAL22;
	return (-1);
}
if (pfr_buf_add(b, &addr))
	return (-1);
} while ((n = n->next) != NULL((void *)0));

return (0);
1909}

1911int
1912pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor)
1913{
struct pfioc_trans_e trans;

bzero(&trans, sizeof(trans));
trans.type = type;
if (strlcpy(trans.anchor, anchor,
   sizeof(trans.anchor)) >= sizeof(trans.anchor))
errx(1, "pfctl_add_trans: strlcpy");

return pfr_buf_add(buf, &trans);
1923}

1925u_int32_t
1926pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor)
1927{
struct pfioc_trans_e *p;

PFRB_FOREACH(p, buf)for ((p) = pfr_buf_next((buf), ((void *)0)); (p) != ((void *)
0); (p) = pfr_buf_next((buf), (p)))
if (type == p->type && !strcmp(anchor, p->anchor))
	return (p->ticket);
errx(1, "pfctl_get_ticket: assertion failed");
1934}

1936int
1937pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from)
1938{
struct pfioc_trans trans;

bzero(&trans, sizeof(trans));
trans.size = buf->pfrb_size - from;
trans.esize = sizeof(struct pfioc_trans_e);
trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from;
return ioctl(dev, cmd, &trans);
1946}