diff options
Diffstat (limited to 'usr.bin/systat/netcmds.c')
| -rw-r--r-- | usr.bin/systat/netcmds.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/usr.bin/systat/netcmds.c b/usr.bin/systat/netcmds.c index 527b33f87e3..e69de29bb2d 100644 --- a/usr.bin/systat/netcmds.c +++ b/usr.bin/systat/netcmds.c @@ -1,360 +0,0 @@ -/* $OpenBSD: netcmds.c,v 1.19 2007/09/11 15:47:17 gilles Exp $ */ -/* $NetBSD: netcmds.c,v 1.4 1995/05/21 17:14:38 mycroft Exp $ */ - -/*- - * Copyright (c) 1980, 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)netcmds.c 8.1 (Berkeley) 6/6/93"; -#endif -static char rcsid[] = "$OpenBSD: netcmds.c,v 1.19 2007/09/11 15:47:17 gilles Exp $"; -#endif /* not lint */ - -/* - * Common network command support routines. - */ -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/mbuf.h> -#include <sys/protosw.h> - -#include <net/route.h> -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/in_pcb.h> - -#include <arpa/inet.h> - -#include <errno.h> -#include <netdb.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include "systat.h" -#include "extern.h" - -#define streq(a,b) (strcmp(a,b)==0) - -static struct hitem { - struct sockaddr_storage addr; - int onoff; -} *hosts; - -size_t nports, nhosts; -int protos; - -static void changeitems(char *, int); -static int selectproto(char *); -static void showprotos(void); -static int selectport(long, int); -static void showports(void); -static int addrcmp(struct sockaddr *, struct sockaddr *); -static int selecthost(struct sockaddr *, int); -static void showhosts(void); - -int -netcmd(char *cmd, char *args) -{ - - if (prefix(cmd, "tcp") || prefix(cmd, "udp")) { - selectproto(cmd); - return (1); - } - if (prefix(cmd, "ignore") || prefix(cmd, "display")) { - changeitems(args, prefix(cmd, "display")); - return (1); - } - if (prefix(cmd, "reset")) { - selectproto(0); - selecthost(0, 0); - selectport(htons(-1), 0); - return (1); - } - if (prefix(cmd, "show")) { - move(CMDLINE, 0); - clrtoeol(); - if (*args == '\0') { - showprotos(); - showhosts(); - showports(); - return (1); - } - if (prefix(args, "protos")) - showprotos(); - else if (prefix(args, "hosts")) - showhosts(); - else if (prefix(args, "ports")) - showports(); - else - addstr("show what?"); - return (1); - } - return (0); -} - - -static void -changeitems(char *args, int onoff) -{ - char *cp; - struct servent *sp; - struct addrinfo hints, *res0, *res; - - args[strcspn(args, "\n")] = '\0'; - - for (;;args = cp) { - for (cp = args; isspace(*cp); cp++) - ; - args = cp; - for (; *cp && !isspace(*cp); cp++) - ; - if (*cp) - *cp++ = '\0'; - if (cp - args == 0) - break; - sp = getservbyname(args, - protos == TCP ? "tcp" : protos == UDP ? "udp" : 0); - if (sp) { - selectport(sp->s_port, onoff); - continue; - } - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_DGRAM; - if (getaddrinfo(args, "0", &hints, &res0) != 0) { - error("%s: unknown host or port", args); - continue; - } - for (res = res0; res; res = res->ai_next) - selecthost(res->ai_addr, onoff); - freeaddrinfo(res0); - } -} - -static int -selectproto(char *proto) -{ - int new = protos; - - if (proto == 0 || streq(proto, "all")) - new = TCP|UDP; - else if (streq(proto, "tcp")) - new = TCP; - else if (streq(proto, "udp")) - new = UDP; - return (protos = new); -} - -static void -showprotos(void) -{ - - if ((protos&TCP) == 0) - addch('!'); - addstr("tcp "); - if ((protos&UDP) == 0) - addch('!'); - addstr("udp "); -} - -static struct pitem { - long port; - int onoff; -} *ports; - -static int -selectport(long port, int onoff) -{ - struct pitem *p; - - if (ntohs(port) == -1) { - if (ports == 0) - return (0); - free(ports); - ports = NULL; - nports = 0; - return (1); - } - for (p = ports; p < ports+nports; p++) - if (p->port == port) { - p->onoff = onoff; - return (0); - } - if (nports + 1 > SIZE_MAX / sizeof(*p) || - (p = realloc(ports, (nports + 1) * sizeof(*p))) == NULL) { - error("selectport: %s", strerror(ENOMEM)); - die(); - } - ports = p; - - p = &ports[nports++]; - p->port = port; - p->onoff = onoff; - return (1); -} - -int -checkport(struct inpcb *inp) -{ - struct pitem *p; - - if (ports) - for (p = ports; p < ports+nports; p++) - if (p->port == inp->inp_lport || p->port == inp->inp_fport) - return (p->onoff); - return (1); -} - -static void -showports(void) -{ - struct pitem *p; - struct servent *sp; - - for (p = ports; p < ports+nports; p++) { - sp = getservbyport(p->port, - protos == (TCP|UDP) ? 0 : protos == TCP ? "tcp" : "udp"); - if (!p->onoff) - addch('!'); - if (sp) - printw("%s ", sp->s_name); - else - printw("%d ", ntohs(p->port)); - } -} - -static int -addrcmp(struct sockaddr *sa1, struct sockaddr *sa2) -{ - if (sa1->sa_family != sa2->sa_family) - return 0; - if (sa1->sa_len != sa2->sa_len) - return 0; - switch (sa1->sa_family) { - case AF_INET: - if (((struct sockaddr_in *)sa1)->sin_addr.s_addr == - ((struct sockaddr_in *)sa2)->sin_addr.s_addr) - return 1; - break; - case AF_INET6: - if (IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)sa1)->sin6_addr, - &((struct sockaddr_in6 *)sa2)->sin6_addr)) - return 1; - break; - default: - if (memcmp(sa1, sa2, sa1->sa_len) == 0) - return 1; - break; - } - return 0; -} - -static int -selecthost(struct sockaddr *sa, int onoff) -{ - struct hitem *p; - - if (sa == 0) { - if (hosts == 0) - return (0); - free(hosts); - hosts = NULL; - nhosts = 0; - return (1); - } - for (p = hosts; p < hosts+nhosts; p++) - if (addrcmp((struct sockaddr *)&p->addr, sa)) { - p->onoff = onoff; - return (0); - } - if (sa->sa_len > sizeof(struct sockaddr_storage)) - return (-1); /*XXX*/ - if (nhosts + 1 > SIZE_MAX / sizeof(*p) || - (p = realloc(hosts, (nhosts + 1) * sizeof(*p))) == NULL) { - error("selecthost: %s", strerror(ENOMEM)); - die(); - } - hosts = p; - - p = &hosts[nhosts++]; - memcpy(&p->addr, sa, sa->sa_len); - p->onoff = onoff; - return (1); -} - -int -checkhost(struct inpcb *inp) -{ - struct hitem *p; - - if (hosts) - for (p = hosts; p < hosts+nhosts; p++) { - if (((struct sockaddr *)&p->addr)->sa_family == AF_INET && - !(inp->inp_flags & INP_IPV6)) { - struct sockaddr_in *sin; - sin = (struct sockaddr_in *)&p->addr; - if (sin->sin_addr.s_addr == inp->inp_laddr.s_addr || - sin->sin_addr.s_addr == inp->inp_faddr.s_addr) - return (p->onoff); - } - if (((struct sockaddr *)&p->addr)->sa_family == AF_INET6 && - (inp->inp_flags & INP_IPV6)) { - struct sockaddr_in6 *sin6; - sin6 = (struct sockaddr_in6 *)&p->addr; - if (IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, &inp->inp_laddr6) || - IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, &inp->inp_faddr6)) - return (p->onoff); - } - } - return (1); -} - -static void -showhosts(void) -{ - struct hitem *p; - char hbuf[NI_MAXHOST]; - struct sockaddr *sa; - int flags; - - flags = nflag ? NI_NUMERICHOST : 0; - for (p = hosts; p < hosts+nhosts; p++) { - sa = (struct sockaddr *)&p->addr; - if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0, - flags) != 0) - strlcpy(hbuf, "(invalid)", sizeof hbuf); - if (!p->onoff) - addch('!'); - printw("%s ", hbuf); - } -} |