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net/tcpdump: Patch to honour local timezone
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Authored by jrm on Sep 16 2023, 11:45 AM.
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R11:c7e9092572cd: net/tcpdump: Patch to honour local timezone
Summary

Discussion: https://lists.freebsd.org/archives/freebsd-stable/2023-September/001448.html

PR: 273807 (src patch)
Sponsored by: The FreeBSD Foundation

Diff Detail

Repository
R11 FreeBSD ports repository
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Unit
Tests Not Applicable

Revision Contents
Changeset List

PathSize
net/
tcpdump/
4 lines
4 lines

Diff 127502

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net/tcpdump/Makefile

Show First 20 Lines • Show All 82 Lines • ▼ Show 20 Lines
static const char *default_protos[] = {"sctp", "tcp", "udp", "divert" }; static const char *default_protos[] = {"sctp", "tcp", "udp", "divert" };
static size_t default_numprotos = nitems(default_protos); static size_t default_numprotos = nitems(default_protos);
static int *protos; /* protocols to use */ static int *protos; /* protocols to use */
static size_t numprotos; /* allocated size of protos[] */ static size_t numprotos; /* allocated size of protos[] */
static int *ports; static int *ports;
#define INT_BIT (sizeof(int)*CHAR_BIT) #define INT_BIT (sizeof(int)*CHAR_BIT)
#define SET_PORT(p) do { ports[p / INT_BIT] |= 1 << (p % INT_BIT); } while (0) #define SET_PORT(p) do { ports[p / INT_BIT] |= 1 << (p % INT_BIT); } while (0)
#define CHK_PORT(p) (ports[p / INT_BIT] & (1 << (p % INT_BIT))) #define CHK_PORT(p) (ports[p / INT_BIT] & (1 << (p % INT_BIT)))
struct addr { struct addr {
struct sockaddr_storage address; struct sockaddr_storage address;
struct addr *next; struct addr *next;
}; };
struct sock { struct sock {
void *socket; void *socket;
void *pcb; void *pcb;
int shown; int shown;
int vflag; int vflag;
int family; int family;
int proto; int proto;
int state; int state;
const char *protoname; const char *protoname;
struct addr *laddr; struct addr *laddr;
struct addr *faddr; struct addr *faddr;
struct sock *next; struct sock *next;
}; };
#define HASHSIZE 1009 #define HASHSIZE 1009
static struct sock *sockhash[HASHSIZE]; static struct sock *sockhash[HASHSIZE];
static struct xfile *xfiles; static struct xfile *xfiles;
static int nxfiles; static int nxfiles;
static int static int
xprintf(const char *fmt, ...) xprintf(const char *fmt, ...)
{ {
va_list ap; va_list ap;
int len; int len;
va_start(ap, fmt); va_start(ap, fmt);
len = vprintf(fmt, ap); len = vprintf(fmt, ap);
va_end(ap); va_end(ap);
if (len < 0) if (len < 0)
err(1, "printf()"); err(1, "printf()");
return (len); return (len);
} }
static int static int
get_proto_type(const char *proto) get_proto_type(const char *proto)
{ {
struct protoent *pent; struct protoent *pent;
if (strlen(proto) == 0) if (strlen(proto) == 0)
return (0); return (0);
pent = getprotobyname(proto); pent = getprotobyname(proto);
if (pent == NULL) { if (pent == NULL) {
warn("getprotobyname"); warn("getprotobyname");
return (-1); return (-1);
} }
return (pent->p_proto); return (pent->p_proto);
} }
static void static void
init_protos(int num) init_protos(int num)
{ {
int proto_count = 0; int proto_count = 0;
if (num > 0) { if (num > 0) {
vangyzenUnsubmitted
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style(9) was recently changed to permit the braces that were here. I personally prefer the braces, especially in cases like this, where the else has braces.

vangyzen: `style(9)` was recently changed to permit the braces that were here. I personally prefer the…
proto_count = num; proto_count = num;
} else { } else {
/* Find the maximum number of possible protocols. */ /* Find the maximum number of possible protocols. */
while (getprotoent() != NULL) while (getprotoent() != NULL)
proto_count++; proto_count++;
endprotoent(); endprotoent();
} }
if ((protos = malloc(sizeof(int) * proto_count)) == NULL) if ((protos = malloc(sizeof(int) * proto_count)) == NULL)
err(1, "malloc"); err(1, "malloc");
numprotos = proto_count; numprotos = proto_count;
} }
static int static int
parse_protos(char *protospec) parse_protos(char *protospec)
{ {
char *prot; char *prot;
int proto_type, proto_index; int proto_type, proto_index;
if (protospec == NULL) if (protospec == NULL)
return (-1); return (-1);
init_protos(0); init_protos(0);
proto_index = 0; proto_index = 0;
while ((prot = strsep(&protospec, ",")) != NULL) { while ((prot = strsep(&protospec, ",")) != NULL) {
if (strlen(prot) == 0) if (strlen(prot) == 0)
continue; continue;
proto_type = get_proto_type(prot); proto_type = get_proto_type(prot);
if (proto_type != -1) if (proto_type != -1)
protos[proto_index++] = proto_type; protos[proto_index++] = proto_type;
} }
numprotos = proto_index; numprotos = proto_index;
return (proto_index); return (proto_index);
} }
static void static void
parse_ports(const char *portspec) parse_ports(const char *portspec)
{ {
const char *p, *q; const char *p, *q;
int port, end; int port, end;
if (ports == NULL) if (ports == NULL)
if ((ports = calloc(65536 / INT_BIT, sizeof(int))) == NULL) if ((ports = calloc(65536 / INT_BIT, sizeof(int))) == NULL)
▲ Show 20 Lines • Show All 152 Lines • ▼ Show 20 Lines while (offset < len) {
xladdr = (struct xsctp_laddr *)(void *)(buf + offset); xladdr = (struct xsctp_laddr *)(void *)(buf + offset);
offset += sizeof(struct xsctp_laddr); offset += sizeof(struct xsctp_laddr);
if (xladdr->last == 1) if (xladdr->last == 1)
break; break;
if ((laddr = calloc(1, sizeof(struct addr))) == NULL) if ((laddr = calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
switch (xladdr->address.sa.sa_family) { switch (xladdr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xladdr->address.sin.sin_addr))
local_all_loopback = 0; local_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET,
AF_INET,
&xladdr->address.sin.sin_addr, &xladdr->address.sin.sin_addr,
htons(xinpcb->local_port)); htons(xinpcb->local_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xladdr->address.sin6.sin6_addr))
local_all_loopback = 0; local_all_loopback = 0;
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET6,
AF_INET6,
&xladdr->address.sin6.sin6_addr, &xladdr->address.sin6.sin6_addr,
htons(xinpcb->local_port)); htons(xinpcb->local_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1, "address family %d not supported",
xladdr->address.sa.sa_family); xladdr->address.sa.sa_family);
} }
laddr->next = NULL; laddr->next = NULL;
if (prev_laddr == NULL) if (prev_laddr == NULL)
sock->laddr = laddr; sock->laddr = laddr;
else else
prev_laddr->next = laddr; prev_laddr->next = laddr;
prev_laddr = laddr; prev_laddr = laddr;
} }
if (sock->laddr == NULL) { if (sock->laddr == NULL) {
if ((sock->laddr = calloc(1, sizeof(struct addr))) == NULL) if ((sock->laddr =
calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
sock->laddr->address.ss_family = sock->family; sock->laddr->address.ss_family = sock->family;
if (sock->family == AF_INET) if (sock->family == AF_INET)
sock->laddr->address.ss_len = sizeof(struct sockaddr_in); sock->laddr->address.ss_len =
sizeof(struct sockaddr_in);
vangyzenUnsubmitted
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I'm not sure if style(9) covers this. I think the prevailing style would put sizeof at the beginning of the next line. Personally, I would prefer that. Ditto three times below.

vangyzen: I'm not sure if `style(9)` covers this. I think the prevailing style would put `sizeof` at the…
else else
sock->laddr->address.ss_len = sizeof(struct sockaddr_in6); sock->laddr->address.ss_len =
sizeof(struct sockaddr_in6);
local_all_loopback = 0; local_all_loopback = 0;
} }
if ((sock->faddr = calloc(1, sizeof(struct addr))) == NULL) if ((sock->faddr = calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
sock->faddr->address.ss_family = sock->family; sock->faddr->address.ss_family = sock->family;
if (sock->family == AF_INET) if (sock->family == AF_INET)
sock->faddr->address.ss_len = sizeof(struct sockaddr_in); sock->faddr->address.ss_len =
sizeof(struct sockaddr_in);
else else
sock->faddr->address.ss_len = sizeof(struct sockaddr_in6); sock->faddr->address.ss_len =
sizeof(struct sockaddr_in6);
no_stcb = 1; no_stcb = 1;
while (offset < len) { while (offset < len) {
xstcb = (struct xsctp_tcb *)(void *)(buf + offset); xstcb = (struct xsctp_tcb *)(void *)(buf + offset);
offset += sizeof(struct xsctp_tcb); offset += sizeof(struct xsctp_tcb);
if (no_stcb) { if (no_stcb) {
if (opt_l && if (opt_l && (sock->vflag & vflag) &&
ngieUnsubmitted
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(... vflag) != 0?

ngie: `(... vflag) != 0`?
(sock->vflag & vflag) &&
(!opt_L || !local_all_loopback) && (!opt_L || !local_all_loopback) &&
((xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) || ((xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) ||
(xstcb->last == 1))) { (xstcb->last == 1))) {
hash = (int)((uintptr_t)sock->socket % HASHSIZE); hash = (int)((uintptr_t)sock->socket %
HASHSIZE);
sock->next = sockhash[hash]; sock->next = sockhash[hash];
sockhash[hash] = sock; sockhash[hash] = sock;
} else { } else {
free_socket(sock); free_socket(sock);
} }
} }
if (xstcb->last == 1) if (xstcb->last == 1)
break; break;
Show All 16 Lines while (offset < len) {
} else { } else {
sock->family = AF_INET; sock->family = AF_INET;
sock->vflag = INP_IPV4; sock->vflag = INP_IPV4;
} }
} }
prev_laddr = NULL; prev_laddr = NULL;
local_all_loopback = 1; local_all_loopback = 1;
while (offset < len) { while (offset < len) {
xladdr = (struct xsctp_laddr *)(void *)(buf + offset); xladdr = (struct xsctp_laddr *)(void *)(buf +
offset);
offset += sizeof(struct xsctp_laddr); offset += sizeof(struct xsctp_laddr);
if (xladdr->last == 1) if (xladdr->last == 1)
break; break;
if (!opt_c) if (!opt_c)
continue; continue;
if ((laddr = calloc(1, sizeof(struct addr))) == NULL) laddr = calloc(1, sizeof(struct addr));
if (laddr == NULL)
vangyzenUnsubmitted
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I would prefer to separate the assignment and the comparison instead of wrapping the line, but this is fine.

vangyzen: I would prefer to separate the assignment and the comparison instead of wrapping the line, but…
vangyzenUnsubmitted
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I should have been more clear. I'm sorry. I meant:

laddr = calloc(...);
if (laddr == NULL) {
vangyzen: I should have been more clear. I'm sorry. I meant: ``` laddr = calloc(...); if (laddr ==…
err(1, "malloc()"); err(1, "malloc()");
gargaAuthorUnsubmitted
Not Done
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err() call should point to "calloc()" here. There are other places I see the same issue. I'll submit a separate review

garga: err() call should point to "calloc()" here. There are other places I see the same issue. I'll…
allanjudeUnsubmitted
Not Done
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calloc(num, size) is just a safe wrapper around malloc(num * size), so the error message is fine

allanjude: calloc(num, size) is just a safe wrapper around malloc(num * size), so the error message is fine
switch (xladdr->address.sa.sa_family) { switch (xladdr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xladdr->address.sin.sin_addr))
local_all_loopback = 0; local_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET,
AF_INET,
&xladdr->address.sin.sin_addr, &xladdr->address.sin.sin_addr,
htons(xstcb->local_port)); htons(xstcb->local_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xladdr->address.sin6.sin6_addr))
local_all_loopback = 0; local_all_loopback = 0;
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET6,
AF_INET6,
&xladdr->address.sin6.sin6_addr, &xladdr->address.sin6.sin6_addr,
htons(xstcb->local_port)); htons(xstcb->local_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1,
"address family %d not supported",
xladdr->address.sa.sa_family); xladdr->address.sa.sa_family);
} }
laddr->next = NULL; laddr->next = NULL;
if (prev_laddr == NULL) if (prev_laddr == NULL)
sock->laddr = laddr; sock->laddr = laddr;
else else
prev_laddr->next = laddr; prev_laddr->next = laddr;
prev_laddr = laddr; prev_laddr = laddr;
} }
prev_faddr = NULL; prev_faddr = NULL;
foreign_all_loopback = 1; foreign_all_loopback = 1;
while (offset < len) { while (offset < len) {
xraddr = (struct xsctp_raddr *)(void *)(buf + offset); xraddr = (struct xsctp_raddr *)(void *)(buf +
offset);
offset += sizeof(struct xsctp_raddr); offset += sizeof(struct xsctp_raddr);
if (xraddr->last == 1) if (xraddr->last == 1)
break; break;
if (!opt_c) if (!opt_c)
continue; continue;
if ((faddr = calloc(1, sizeof(struct addr))) == NULL) faddr = calloc(1, sizeof(struct addr));
if (faddr == NULL)
vangyzenUnsubmitted
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Ditto line 459.

vangyzen: Ditto line 459.
err(1, "malloc()"); err(1, "malloc()");
switch (xraddr->address.sa.sa_family) { switch (xraddr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xraddr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xraddr->address.sin.sin_addr))
foreign_all_loopback = 0; foreign_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&faddr->address, sockaddr(&faddr->address, AF_INET,
AF_INET,
&xraddr->address.sin.sin_addr, &xraddr->address.sin.sin_addr,
htons(xstcb->remote_port)); htons(xstcb->remote_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xraddr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xraddr->address.sin6.sin6_addr))
foreign_all_loopback = 0; foreign_all_loopback = 0;
sockaddr(&faddr->address, sockaddr(&faddr->address, AF_INET6,
AF_INET6,
&xraddr->address.sin6.sin6_addr, &xraddr->address.sin6.sin6_addr,
htons(xstcb->remote_port)); htons(xstcb->remote_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1,
"address family %d not supported",
xraddr->address.sa.sa_family); xraddr->address.sa.sa_family);
} }
faddr->next = NULL; faddr->next = NULL;
if (prev_faddr == NULL) if (prev_faddr == NULL)
sock->faddr = faddr; sock->faddr = faddr;
else else
prev_faddr->next = faddr; prev_faddr->next = faddr;
prev_faddr = faddr; prev_faddr = faddr;
} }
if (opt_c) { if (opt_c) {
if ((sock->vflag & vflag) && if ((sock->vflag & vflag) &&
(!opt_L || (!opt_L ||
!(local_all_loopback || foreign_all_loopback))) { !(local_all_loopback ||
hash = (int)((uintptr_t)sock->socket % HASHSIZE); foreign_all_loopback))) {
hash = (int)((uintptr_t)sock->socket %
HASHSIZE);
sock->next = sockhash[hash]; sock->next = sockhash[hash];
sockhash[hash] = sock; sockhash[hash] = sock;
} else { } else {
free_socket(sock); free_socket(sock);
} }
} }
} }
xinpcb = (struct xsctp_inpcb *)(void *)(buf + offset); xinpcb = (struct xsctp_inpcb *)(void *)(buf + offset);
▲ Show 20 Lines • Show All 96 Lines • ▼ Show 20 Lines default:
errx(1, "protocol %d not supported", proto); errx(1, "protocol %d not supported", proto);
} }
if ((inp->inp_vflag & vflag) == 0) if ((inp->inp_vflag & vflag) == 0)
continue; continue;
if (inp->inp_vflag & INP_IPV4) { if (inp->inp_vflag & INP_IPV4) {
if ((inp->inp_fport == 0 && !opt_l) || if ((inp->inp_fport == 0 && !opt_l) ||
(inp->inp_fport != 0 && !opt_c)) (inp->inp_fport != 0 && !opt_c))
continue; continue;
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (opt_L && if (opt_L &&
(__IN_IS_ADDR_LOOPBACK(&inp->inp_faddr) || (__IN_IS_ADDR_LOOPBACK(&inp->inp_faddr) ||
__IN_IS_ADDR_LOOPBACK(&inp->inp_laddr))) __IN_IS_ADDR_LOOPBACK(&inp->inp_laddr)))
continue; continue;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
} else if (inp->inp_vflag & INP_IPV6) { } else if (inp->inp_vflag & INP_IPV6) {
if ((inp->inp_fport == 0 && !opt_l) || if ((inp->inp_fport == 0 && !opt_l) ||
(inp->inp_fport != 0 && !opt_c)) (inp->inp_fport != 0 && !opt_c))
continue; continue;
if (opt_L && if (opt_L &&
(IN6_IS_ADDR_LOOPBACK(&inp->in6p_faddr) || (IN6_IS_ADDR_LOOPBACK(&inp->in6p_faddr) ||
IN6_IS_ADDR_LOOPBACK(&inp->in6p_laddr))) IN6_IS_ADDR_LOOPBACK(&inp->in6p_laddr)))
continue; continue;
▲ Show 20 Lines • Show All 334 Lines • ▼ Show 20 Lines case AF_INET6:
while (pos < 58) while (pos < 58)
pos += xprintf(" "); pos += xprintf(" ");
if (faddr != NULL) if (faddr != NULL)
pos += printaddr(&faddr->address); pos += printaddr(&faddr->address);
break; break;
case AF_UNIX: case AF_UNIX:
if ((laddr == NULL) || (faddr == NULL)) if ((laddr == NULL) || (faddr == NULL))
errx(1, "laddr = %p or faddr = %p is NULL", errx(1, "laddr = %p or faddr = %p is NULL",
(void *)laddr, (void *)faddr); (void *)laddr, (void *)faddr);
/* server */ /* server */
if (laddr->address.ss_len > 0) { if (laddr->address.ss_len > 0) {
pos += printaddr(&laddr->address); pos += printaddr(&laddr->address);
break; break;
} }
/* client */ /* client */
p = *(void **)&(faddr->address); p = *(void **)&(faddr->address);
if (p == NULL) { if (p == NULL) {
pos += xprintf("(not connected)"); pos += xprintf("(not connected)");
break; break;
} }
pos += xprintf("-> "); pos += xprintf("-> ");
for (hash = 0; hash < HASHSIZE; ++hash) { for (hash = 0; hash < HASHSIZE; ++hash) {
for (s_tmp = sockhash[hash]; for (s_tmp = sockhash[hash];
s_tmp != NULL; s_tmp != NULL;
s_tmp = s_tmp->next) s_tmp = s_tmp->next)
vangyzenUnsubmitted
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I'm not sure that style(9) requires this. I personally prefer the old way.

vangyzen: I'm not sure that `style(9)` requires this. I personally prefer the old way.
ngieUnsubmitted
Not Done
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It does.

ngie: It does.
if (s_tmp->pcb == p) if (s_tmp->pcb == p)
break; break;
if (s_tmp != NULL) if (s_tmp != NULL)
break; break;
} }
if (s_tmp == NULL || if (s_tmp == NULL || s_tmp->laddr == NULL ||
s_tmp->laddr == NULL ||
s_tmp->laddr->address.ss_len == 0) s_tmp->laddr->address.ss_len == 0)
pos += xprintf("??"); pos += xprintf("??");
else else
pos += printaddr(&s_tmp->laddr->address); pos += printaddr(&s_tmp->laddr->address);
break; break;
default: default:
abort(); abort();
} }
▲ Show 20 Lines • Show All 100 Lines • ▼ Show 20 Lines for (pindex = 0; pindex < default_numprotos; pindex++) {
prot = getprotobyname(pname); prot = getprotobyname(pname);
if (prot == NULL) if (prot == NULL)
err(1, "getprotobyname: %s", pname); err(1, "getprotobyname: %s", pname);
protos[pindex] = prot->p_proto; protos[pindex] = prot->p_proto;
} }
numprotos = pindex; numprotos = pindex;
return (pindex); return (pindex);
} }
static void static void
usage(void) usage(void)
{ {
fprintf(stderr, fprintf(stderr,
"usage: sockstat [-46cLlsu] [-j jid] [-p ports] [-P protocols]\n"); "usage: sockstat [-46cLlsu] [-j jid] [-p ports] [-P protocols]\n");
exit(1); exit(1);
} }
▲ Show 20 Lines • Show All 79 Lines • Show Last 20 Lines
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net/tcpdump/distinfo

Show First 20 Lines • Show All 82 Lines • ▼ Show 20 Lines
static const char *default_protos[] = {"sctp", "tcp", "udp", "divert" }; static const char *default_protos[] = {"sctp", "tcp", "udp", "divert" };
static size_t default_numprotos = nitems(default_protos); static size_t default_numprotos = nitems(default_protos);
static int *protos; /* protocols to use */ static int *protos; /* protocols to use */
static size_t numprotos; /* allocated size of protos[] */ static size_t numprotos; /* allocated size of protos[] */
static int *ports; static int *ports;
#define INT_BIT (sizeof(int)*CHAR_BIT) #define INT_BIT (sizeof(int)*CHAR_BIT)
#define SET_PORT(p) do { ports[p / INT_BIT] |= 1 << (p % INT_BIT); } while (0) #define SET_PORT(p) do { ports[p / INT_BIT] |= 1 << (p % INT_BIT); } while (0)
#define CHK_PORT(p) (ports[p / INT_BIT] & (1 << (p % INT_BIT))) #define CHK_PORT(p) (ports[p / INT_BIT] & (1 << (p % INT_BIT)))
struct addr { struct addr {
struct sockaddr_storage address; struct sockaddr_storage address;
struct addr *next; struct addr *next;
}; };
struct sock { struct sock {
void *socket; void *socket;
void *pcb; void *pcb;
int shown; int shown;
int vflag; int vflag;
int family; int family;
int proto; int proto;
int state; int state;
const char *protoname; const char *protoname;
struct addr *laddr; struct addr *laddr;
struct addr *faddr; struct addr *faddr;
struct sock *next; struct sock *next;
}; };
#define HASHSIZE 1009 #define HASHSIZE 1009
static struct sock *sockhash[HASHSIZE]; static struct sock *sockhash[HASHSIZE];
static struct xfile *xfiles; static struct xfile *xfiles;
static int nxfiles; static int nxfiles;
static int static int
xprintf(const char *fmt, ...) xprintf(const char *fmt, ...)
{ {
va_list ap; va_list ap;
int len; int len;
va_start(ap, fmt); va_start(ap, fmt);
len = vprintf(fmt, ap); len = vprintf(fmt, ap);
va_end(ap); va_end(ap);
if (len < 0) if (len < 0)
err(1, "printf()"); err(1, "printf()");
return (len); return (len);
} }
static int static int
get_proto_type(const char *proto) get_proto_type(const char *proto)
{ {
struct protoent *pent; struct protoent *pent;
if (strlen(proto) == 0) if (strlen(proto) == 0)
return (0); return (0);
pent = getprotobyname(proto); pent = getprotobyname(proto);
if (pent == NULL) { if (pent == NULL) {
warn("getprotobyname"); warn("getprotobyname");
return (-1); return (-1);
} }
return (pent->p_proto); return (pent->p_proto);
} }
static void static void
init_protos(int num) init_protos(int num)
{ {
int proto_count = 0; int proto_count = 0;
if (num > 0) { if (num > 0) {
vangyzenUnsubmitted
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style(9) was recently changed to permit the braces that were here. I personally prefer the braces, especially in cases like this, where the else has braces.

vangyzen: `style(9)` was recently changed to permit the braces that were here. I personally prefer the…
proto_count = num; proto_count = num;
} else { } else {
/* Find the maximum number of possible protocols. */ /* Find the maximum number of possible protocols. */
while (getprotoent() != NULL) while (getprotoent() != NULL)
proto_count++; proto_count++;
endprotoent(); endprotoent();
} }
if ((protos = malloc(sizeof(int) * proto_count)) == NULL) if ((protos = malloc(sizeof(int) * proto_count)) == NULL)
err(1, "malloc"); err(1, "malloc");
numprotos = proto_count; numprotos = proto_count;
} }
static int static int
parse_protos(char *protospec) parse_protos(char *protospec)
{ {
char *prot; char *prot;
int proto_type, proto_index; int proto_type, proto_index;
if (protospec == NULL) if (protospec == NULL)
return (-1); return (-1);
init_protos(0); init_protos(0);
proto_index = 0; proto_index = 0;
while ((prot = strsep(&protospec, ",")) != NULL) { while ((prot = strsep(&protospec, ",")) != NULL) {
if (strlen(prot) == 0) if (strlen(prot) == 0)
continue; continue;
proto_type = get_proto_type(prot); proto_type = get_proto_type(prot);
if (proto_type != -1) if (proto_type != -1)
protos[proto_index++] = proto_type; protos[proto_index++] = proto_type;
} }
numprotos = proto_index; numprotos = proto_index;
return (proto_index); return (proto_index);
} }
static void static void
parse_ports(const char *portspec) parse_ports(const char *portspec)
{ {
const char *p, *q; const char *p, *q;
int port, end; int port, end;
if (ports == NULL) if (ports == NULL)
if ((ports = calloc(65536 / INT_BIT, sizeof(int))) == NULL) if ((ports = calloc(65536 / INT_BIT, sizeof(int))) == NULL)
▲ Show 20 Lines • Show All 152 Lines • ▼ Show 20 Lines while (offset < len) {
xladdr = (struct xsctp_laddr *)(void *)(buf + offset); xladdr = (struct xsctp_laddr *)(void *)(buf + offset);
offset += sizeof(struct xsctp_laddr); offset += sizeof(struct xsctp_laddr);
if (xladdr->last == 1) if (xladdr->last == 1)
break; break;
if ((laddr = calloc(1, sizeof(struct addr))) == NULL) if ((laddr = calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
switch (xladdr->address.sa.sa_family) { switch (xladdr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xladdr->address.sin.sin_addr))
local_all_loopback = 0; local_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET,
AF_INET,
&xladdr->address.sin.sin_addr, &xladdr->address.sin.sin_addr,
htons(xinpcb->local_port)); htons(xinpcb->local_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xladdr->address.sin6.sin6_addr))
local_all_loopback = 0; local_all_loopback = 0;
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET6,
AF_INET6,
&xladdr->address.sin6.sin6_addr, &xladdr->address.sin6.sin6_addr,
htons(xinpcb->local_port)); htons(xinpcb->local_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1, "address family %d not supported",
xladdr->address.sa.sa_family); xladdr->address.sa.sa_family);
} }
laddr->next = NULL; laddr->next = NULL;
if (prev_laddr == NULL) if (prev_laddr == NULL)
sock->laddr = laddr; sock->laddr = laddr;
else else
prev_laddr->next = laddr; prev_laddr->next = laddr;
prev_laddr = laddr; prev_laddr = laddr;
} }
if (sock->laddr == NULL) { if (sock->laddr == NULL) {
if ((sock->laddr = calloc(1, sizeof(struct addr))) == NULL) if ((sock->laddr =
calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
sock->laddr->address.ss_family = sock->family; sock->laddr->address.ss_family = sock->family;
if (sock->family == AF_INET) if (sock->family == AF_INET)
sock->laddr->address.ss_len = sizeof(struct sockaddr_in); sock->laddr->address.ss_len =
sizeof(struct sockaddr_in);
vangyzenUnsubmitted
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I'm not sure if style(9) covers this. I think the prevailing style would put sizeof at the beginning of the next line. Personally, I would prefer that. Ditto three times below.

vangyzen: I'm not sure if `style(9)` covers this. I think the prevailing style would put `sizeof` at the…
else else
sock->laddr->address.ss_len = sizeof(struct sockaddr_in6); sock->laddr->address.ss_len =
sizeof(struct sockaddr_in6);
local_all_loopback = 0; local_all_loopback = 0;
} }
if ((sock->faddr = calloc(1, sizeof(struct addr))) == NULL) if ((sock->faddr = calloc(1, sizeof(struct addr))) == NULL)
err(1, "malloc()"); err(1, "malloc()");
sock->faddr->address.ss_family = sock->family; sock->faddr->address.ss_family = sock->family;
if (sock->family == AF_INET) if (sock->family == AF_INET)
sock->faddr->address.ss_len = sizeof(struct sockaddr_in); sock->faddr->address.ss_len =
sizeof(struct sockaddr_in);
else else
sock->faddr->address.ss_len = sizeof(struct sockaddr_in6); sock->faddr->address.ss_len =
sizeof(struct sockaddr_in6);
no_stcb = 1; no_stcb = 1;
while (offset < len) { while (offset < len) {
xstcb = (struct xsctp_tcb *)(void *)(buf + offset); xstcb = (struct xsctp_tcb *)(void *)(buf + offset);
offset += sizeof(struct xsctp_tcb); offset += sizeof(struct xsctp_tcb);
if (no_stcb) { if (no_stcb) {
if (opt_l && if (opt_l && (sock->vflag & vflag) &&
ngieUnsubmitted
Not Done
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(... vflag) != 0?

ngie: `(... vflag) != 0`?
(sock->vflag & vflag) &&
(!opt_L || !local_all_loopback) && (!opt_L || !local_all_loopback) &&
((xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) || ((xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) ||
(xstcb->last == 1))) { (xstcb->last == 1))) {
hash = (int)((uintptr_t)sock->socket % HASHSIZE); hash = (int)((uintptr_t)sock->socket %
HASHSIZE);
sock->next = sockhash[hash]; sock->next = sockhash[hash];
sockhash[hash] = sock; sockhash[hash] = sock;
} else { } else {
free_socket(sock); free_socket(sock);
} }
} }
if (xstcb->last == 1) if (xstcb->last == 1)
break; break;
Show All 16 Lines while (offset < len) {
} else { } else {
sock->family = AF_INET; sock->family = AF_INET;
sock->vflag = INP_IPV4; sock->vflag = INP_IPV4;
} }
} }
prev_laddr = NULL; prev_laddr = NULL;
local_all_loopback = 1; local_all_loopback = 1;
while (offset < len) { while (offset < len) {
xladdr = (struct xsctp_laddr *)(void *)(buf + offset); xladdr = (struct xsctp_laddr *)(void *)(buf +
offset);
offset += sizeof(struct xsctp_laddr); offset += sizeof(struct xsctp_laddr);
if (xladdr->last == 1) if (xladdr->last == 1)
break; break;
if (!opt_c) if (!opt_c)
continue; continue;
if ((laddr = calloc(1, sizeof(struct addr))) == NULL) laddr = calloc(1, sizeof(struct addr));
if (laddr == NULL)
vangyzenUnsubmitted
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I would prefer to separate the assignment and the comparison instead of wrapping the line, but this is fine.

vangyzen: I would prefer to separate the assignment and the comparison instead of wrapping the line, but…
vangyzenUnsubmitted
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I should have been more clear. I'm sorry. I meant:

laddr = calloc(...);
if (laddr == NULL) {
vangyzen: I should have been more clear. I'm sorry. I meant: ``` laddr = calloc(...); if (laddr ==…
err(1, "malloc()"); err(1, "malloc()");
gargaAuthorUnsubmitted
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err() call should point to "calloc()" here. There are other places I see the same issue. I'll submit a separate review

garga: err() call should point to "calloc()" here. There are other places I see the same issue. I'll…
allanjudeUnsubmitted
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calloc(num, size) is just a safe wrapper around malloc(num * size), so the error message is fine

allanjude: calloc(num, size) is just a safe wrapper around malloc(num * size), so the error message is fine
switch (xladdr->address.sa.sa_family) { switch (xladdr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xladdr->address.sin.sin_addr))
local_all_loopback = 0; local_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET,
AF_INET,
&xladdr->address.sin.sin_addr, &xladdr->address.sin.sin_addr,
htons(xstcb->local_port)); htons(xstcb->local_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xladdr->address.sin6.sin6_addr))
local_all_loopback = 0; local_all_loopback = 0;
sockaddr(&laddr->address, sockaddr(&laddr->address, AF_INET6,
AF_INET6,
&xladdr->address.sin6.sin6_addr, &xladdr->address.sin6.sin6_addr,
htons(xstcb->local_port)); htons(xstcb->local_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1,
"address family %d not supported",
xladdr->address.sa.sa_family); xladdr->address.sa.sa_family);
} }
laddr->next = NULL; laddr->next = NULL;
if (prev_laddr == NULL) if (prev_laddr == NULL)
sock->laddr = laddr; sock->laddr = laddr;
else else
prev_laddr->next = laddr; prev_laddr->next = laddr;
prev_laddr = laddr; prev_laddr = laddr;
} }
prev_faddr = NULL; prev_faddr = NULL;
foreign_all_loopback = 1; foreign_all_loopback = 1;
while (offset < len) { while (offset < len) {
xraddr = (struct xsctp_raddr *)(void *)(buf + offset); xraddr = (struct xsctp_raddr *)(void *)(buf +
offset);
offset += sizeof(struct xsctp_raddr); offset += sizeof(struct xsctp_raddr);
if (xraddr->last == 1) if (xraddr->last == 1)
break; break;
if (!opt_c) if (!opt_c)
continue; continue;
if ((faddr = calloc(1, sizeof(struct addr))) == NULL) faddr = calloc(1, sizeof(struct addr));
if (faddr == NULL)
vangyzenUnsubmitted
Not Done
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Ditto line 459.

vangyzen: Ditto line 459.
err(1, "malloc()"); err(1, "malloc()");
switch (xraddr->address.sa.sa_family) { switch (xraddr->address.sa.sa_family) {
case AF_INET: case AF_INET:
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (!__IN_IS_ADDR_LOOPBACK(&xraddr->address.sin.sin_addr)) if (!__IN_IS_ADDR_LOOPBACK(
&xraddr->address.sin.sin_addr))
foreign_all_loopback = 0; foreign_all_loopback = 0;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
sockaddr(&faddr->address, sockaddr(&faddr->address, AF_INET,
AF_INET,
&xraddr->address.sin.sin_addr, &xraddr->address.sin.sin_addr,
htons(xstcb->remote_port)); htons(xstcb->remote_port));
break; break;
case AF_INET6: case AF_INET6:
if (!IN6_IS_ADDR_LOOPBACK(&xraddr->address.sin6.sin6_addr)) if (!IN6_IS_ADDR_LOOPBACK(
&xraddr->address.sin6.sin6_addr))
foreign_all_loopback = 0; foreign_all_loopback = 0;
sockaddr(&faddr->address, sockaddr(&faddr->address, AF_INET6,
AF_INET6,
&xraddr->address.sin6.sin6_addr, &xraddr->address.sin6.sin6_addr,
htons(xstcb->remote_port)); htons(xstcb->remote_port));
break; break;
default: default:
errx(1, "address family %d not supported", errx(1,
"address family %d not supported",
xraddr->address.sa.sa_family); xraddr->address.sa.sa_family);
} }
faddr->next = NULL; faddr->next = NULL;
if (prev_faddr == NULL) if (prev_faddr == NULL)
sock->faddr = faddr; sock->faddr = faddr;
else else
prev_faddr->next = faddr; prev_faddr->next = faddr;
prev_faddr = faddr; prev_faddr = faddr;
} }
if (opt_c) { if (opt_c) {
if ((sock->vflag & vflag) && if ((sock->vflag & vflag) &&
(!opt_L || (!opt_L ||
!(local_all_loopback || foreign_all_loopback))) { !(local_all_loopback ||
hash = (int)((uintptr_t)sock->socket % HASHSIZE); foreign_all_loopback))) {
hash = (int)((uintptr_t)sock->socket %
HASHSIZE);
sock->next = sockhash[hash]; sock->next = sockhash[hash];
sockhash[hash] = sock; sockhash[hash] = sock;
} else { } else {
free_socket(sock); free_socket(sock);
} }
} }
} }
xinpcb = (struct xsctp_inpcb *)(void *)(buf + offset); xinpcb = (struct xsctp_inpcb *)(void *)(buf + offset);
▲ Show 20 Lines • Show All 96 Lines • ▼ Show 20 Lines default:
errx(1, "protocol %d not supported", proto); errx(1, "protocol %d not supported", proto);
} }
if ((inp->inp_vflag & vflag) == 0) if ((inp->inp_vflag & vflag) == 0)
continue; continue;
if (inp->inp_vflag & INP_IPV4) { if (inp->inp_vflag & INP_IPV4) {
if ((inp->inp_fport == 0 && !opt_l) || if ((inp->inp_fport == 0 && !opt_l) ||
(inp->inp_fport != 0 && !opt_c)) (inp->inp_fport != 0 && !opt_c))
continue; continue;
#define __IN_IS_ADDR_LOOPBACK(pina) \ #define __IN_IS_ADDR_LOOPBACK(pina) \
((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
if (opt_L && if (opt_L &&
(__IN_IS_ADDR_LOOPBACK(&inp->inp_faddr) || (__IN_IS_ADDR_LOOPBACK(&inp->inp_faddr) ||
__IN_IS_ADDR_LOOPBACK(&inp->inp_laddr))) __IN_IS_ADDR_LOOPBACK(&inp->inp_laddr)))
continue; continue;
#undef __IN_IS_ADDR_LOOPBACK #undef __IN_IS_ADDR_LOOPBACK
} else if (inp->inp_vflag & INP_IPV6) { } else if (inp->inp_vflag & INP_IPV6) {
if ((inp->inp_fport == 0 && !opt_l) || if ((inp->inp_fport == 0 && !opt_l) ||
(inp->inp_fport != 0 && !opt_c)) (inp->inp_fport != 0 && !opt_c))
continue; continue;
if (opt_L && if (opt_L &&
(IN6_IS_ADDR_LOOPBACK(&inp->in6p_faddr) || (IN6_IS_ADDR_LOOPBACK(&inp->in6p_faddr) ||
IN6_IS_ADDR_LOOPBACK(&inp->in6p_laddr))) IN6_IS_ADDR_LOOPBACK(&inp->in6p_laddr)))
continue; continue;
▲ Show 20 Lines • Show All 334 Lines • ▼ Show 20 Lines case AF_INET6:
while (pos < 58) while (pos < 58)
pos += xprintf(" "); pos += xprintf(" ");
if (faddr != NULL) if (faddr != NULL)
pos += printaddr(&faddr->address); pos += printaddr(&faddr->address);
break; break;
case AF_UNIX: case AF_UNIX:
if ((laddr == NULL) || (faddr == NULL)) if ((laddr == NULL) || (faddr == NULL))
errx(1, "laddr = %p or faddr = %p is NULL", errx(1, "laddr = %p or faddr = %p is NULL",
(void *)laddr, (void *)faddr); (void *)laddr, (void *)faddr);
/* server */ /* server */
if (laddr->address.ss_len > 0) { if (laddr->address.ss_len > 0) {
pos += printaddr(&laddr->address); pos += printaddr(&laddr->address);
break; break;
} }
/* client */ /* client */
p = *(void **)&(faddr->address); p = *(void **)&(faddr->address);
if (p == NULL) { if (p == NULL) {
pos += xprintf("(not connected)"); pos += xprintf("(not connected)");
break; break;
} }
pos += xprintf("-> "); pos += xprintf("-> ");
for (hash = 0; hash < HASHSIZE; ++hash) { for (hash = 0; hash < HASHSIZE; ++hash) {
for (s_tmp = sockhash[hash]; for (s_tmp = sockhash[hash];
s_tmp != NULL; s_tmp != NULL;
s_tmp = s_tmp->next) s_tmp = s_tmp->next)
vangyzenUnsubmitted
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I'm not sure that style(9) requires this. I personally prefer the old way.

vangyzen: I'm not sure that `style(9)` requires this. I personally prefer the old way.
ngieUnsubmitted
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It does.

ngie: It does.
if (s_tmp->pcb == p) if (s_tmp->pcb == p)
break; break;
if (s_tmp != NULL) if (s_tmp != NULL)
break; break;
} }
if (s_tmp == NULL || if (s_tmp == NULL || s_tmp->laddr == NULL ||
s_tmp->laddr == NULL ||
s_tmp->laddr->address.ss_len == 0) s_tmp->laddr->address.ss_len == 0)
pos += xprintf("??"); pos += xprintf("??");
else else
pos += printaddr(&s_tmp->laddr->address); pos += printaddr(&s_tmp->laddr->address);
break; break;
default: default:
abort(); abort();
} }
▲ Show 20 Lines • Show All 100 Lines • ▼ Show 20 Lines for (pindex = 0; pindex < default_numprotos; pindex++) {
prot = getprotobyname(pname); prot = getprotobyname(pname);
if (prot == NULL) if (prot == NULL)
err(1, "getprotobyname: %s", pname); err(1, "getprotobyname: %s", pname);
protos[pindex] = prot->p_proto; protos[pindex] = prot->p_proto;
} }
numprotos = pindex; numprotos = pindex;
return (pindex); return (pindex);
} }
static void static void
usage(void) usage(void)
{ {
fprintf(stderr, fprintf(stderr,
"usage: sockstat [-46cLlsu] [-j jid] [-p ports] [-P protocols]\n"); "usage: sockstat [-46cLlsu] [-j jid] [-p ports] [-P protocols]\n");
exit(1); exit(1);
} }
▲ Show 20 Lines • Show All 79 Lines • Show Last 20 Lines