示例#1
0
/*
 * Construct an Internet address representation.
 * If the nflag has been supplied, give
 * numeric value, otherwise try for symbolic name.
 */
static inline void
inetname(struct sockaddr_in *from)
{
	char *cp;
	static char domain[MAXHOSTNAMELEN + 1];
	char name[MAXHOSTNAMELEN + 1];
	static int first = 1;
	const char *ina;

	if (first && !nflag) {
		first = 0;
		if (getdomainname(domain, MAXHOSTNAMELEN) != 0)
			domain[0] = 0;
	}
	cp = 0;
	if (!nflag && from->sin_addr.s_addr != INADDR_ANY) {
		if(INET_rresolve(name, sizeof(name), from, 0x4000, 0xffffffff) >= 0) {
			if ((cp = strchr(name, '.')) &&
			    !strcmp(cp + 1, domain))
				*cp = 0;
			cp = (char *)name;
		}
	}
	ina = inet_ntoa(from->sin_addr);
	if (nflag)
		printf(" %s", ina);
	else
		printf(" %s (%s)", (cp ? cp : ina), ina);
}
示例#2
0
文件: inet.c 项目: AnthraX1/rk
/* Display an Internet socket address. */
static char *
INET_sprint(struct sockaddr *sap, int numeric)
{
  static char buff[128];

  if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
    return(NLS_CATBUFF (catfd, inetSet, inet_none, "[NONE SET]", buff, 128));
  if (INET_rresolve(buff, (struct sockaddr_in *) sap, numeric) != 0)
							return(NULL);
  return(buff);
}
示例#3
0
/* Display an Internet socket address. */
static char *INET_sprint(struct sockaddr *sap, int numeric)
{
    static char buff[128];

    if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
	return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
    if (INET_rresolve(buff, (struct sockaddr_in *) sap, numeric, 
		      0xffffff00) != 0)
	return (NULL);
    return (buff);
}
示例#4
0
char *INET_sprintmask(const struct sockaddr_storage *sasp, int numeric,
		      unsigned int netmask)
{
    static char buff[128];

    if (sasp->ss_family == 0xFFFF || sasp->ss_family == 0)
	return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
    if (INET_rresolve(buff, sizeof(buff), sasp, numeric, netmask) != 0)
	return (NULL);
    return (buff);
}
示例#5
0
static void snprint_ip_port(char *ip_port, int size, struct sockaddr *addr, int port, const char *proto, int numeric)
{
	const char *port_name;

#if ENABLE_FEATURE_IPV6
	if (addr->sa_family == AF_INET6) {
		INET6_rresolve(ip_port, size, (struct sockaddr_in6 *)addr,
			(numeric & NETSTAT_NUMERIC) ? 0x0fff : 0);
	} else
#endif
	{
		INET_rresolve(ip_port, size, (struct sockaddr_in *)addr,
			0x4000 | ((numeric & NETSTAT_NUMERIC) ? 0x0fff : 0),
			0xffffffff);
	}
	port_name = get_sname(htons(port), proto, numeric);
	if ((strlen(ip_port) + strlen(port_name)) > 22)
		ip_port[22 - strlen(port_name)] = '\0';
	ip_port += strlen(ip_port);
	strcat(ip_port, ":");
	strcat(ip_port, port_name);
}
示例#6
0
文件: route.c 项目: springware/92u10
void displayroutes(int noresolve, int netstatfmt)
{
	char devname[64], flags[16], sdest[16], sgw[16];
	unsigned long int d, g, m;
	int flgs, ref, use, metric, mtu, win, ir;
	struct sockaddr_in s_addr;
	struct in_addr mask;

	FILE *fp = bb_xfopen("/proc/net/route", "r");

	bb_printf("Kernel IP routing table\n"
			  "Destination     Gateway         Genmask"
			  "         Flags %s Iface\n",
			  netstatfmt ? "  MSS Window  irtt" : "Metric Ref    Use");

	if (fscanf(fp, "%*[^\n]\n") < 0) { /* Skip the first line. */
		goto ERROR;		   /* Empty or missing line, or read error. */
	}
	while (1) {
		int r;
		r = fscanf(fp, "%63s%lx%lx%X%d%d%d%lx%d%d%d\n",
				   devname, &d, &g, &flgs, &ref, &use, &metric, &m,
				   &mtu, &win, &ir);
		if (r != 11) {
			if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
				break;
			}
		ERROR:
			bb_error_msg_and_die("fscanf");
		}

		if (!(flgs & RTF_UP)) { /* Skip interfaces that are down. */
			continue;
		}

		set_flags(flags, (flgs & IPV4_MASK));
#ifdef RTF_REJECT
		if (flgs & RTF_REJECT) {
			flags[0] = '!';
		}
#endif

		memset(&s_addr, 0, sizeof(struct sockaddr_in));
		s_addr.sin_family = AF_INET;
		s_addr.sin_addr.s_addr = d;
		INET_rresolve(sdest, sizeof(sdest), &s_addr,
					  (noresolve | 0x8000), m);	/* Default instead of *. */

		s_addr.sin_addr.s_addr = g;
		INET_rresolve(sgw, sizeof(sgw), &s_addr,
					  (noresolve | 0x4000), m);	/* Host instead of net. */

		mask.s_addr = m;
		bb_printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), flags);
		if (netstatfmt) {
			bb_printf("%5d %-5d %6d %s\n", mtu, win, ir, devname);
		} else {
			bb_printf("%-6d %-2d %7d %s\n", metric, ref, use, devname);
		}
	}
}
示例#7
0
void displayroutes(int noresolve, int netstatfmt)
{
	char buff[256];
	int nl = 0;
	struct in_addr dest;
	struct in_addr gw;
	struct in_addr mask;
	int flgs, ref, use, metric, mtu, win, ir;
	char flags[64];
	unsigned long int d, g, m;

	char sdest[16], sgw[16];

	FILE *fp = bb_xfopen("/proc/net/route", "r");

	if (noresolve)
		noresolve = 0x0fff;

	printf("Kernel IP routing table\n");
	printf
		("Destination     Gateway         Genmask         Flags %s Iface\n",
		 netstatfmt ? "  MSS Window  irtt" : "Metric Ref    Use");

	while (fgets(buff, sizeof(buff), fp) != NULL) {
		if (nl) {
			int ifl = 0;
			int numeric;
			struct sockaddr_in s_addr;

			while (buff[ifl] != ' ' && buff[ifl] != '\t' && buff[ifl] != '\0')
				ifl++;
			buff[ifl] = 0;	/* interface */
			if (sscanf(buff + ifl + 1, "%lx%lx%X%d%d%d%lx%d%d%d",
					   &d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win,
					   &ir) != 10) {
				bb_error_msg_and_die("Unsuported kernel route format\n");
			}
			ifl = 0;	/* parse flags */
			if (flgs & RTF_UP) {
				if (flgs & RTF_REJECT)
					flags[ifl++] = '!';
				else
					flags[ifl++] = 'U';
				if (flgs & RTF_GATEWAY)
					flags[ifl++] = 'G';
				if (flgs & RTF_HOST)
					flags[ifl++] = 'H';
				if (flgs & RTF_REINSTATE)
					flags[ifl++] = 'R';
				if (flgs & RTF_DYNAMIC)
					flags[ifl++] = 'D';
				if (flgs & RTF_MODIFIED)
					flags[ifl++] = 'M';
				flags[ifl] = 0;
				dest.s_addr = d;
				gw.s_addr = g;
				mask.s_addr = m;
				memset(&s_addr, 0, sizeof(struct sockaddr_in));
				s_addr.sin_family = AF_INET;
				s_addr.sin_addr = dest;
				numeric = noresolve | 0x8000;	/* default instead of * */
				INET_rresolve(sdest, sizeof(sdest), &s_addr, numeric, m);
				numeric = noresolve | 0x4000;	/* host instead of net */
				s_addr.sin_addr = gw;
				INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m);

				printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask),
					   flags);
				if (netstatfmt)
					printf("%5d %-5d %6d %s\n", mtu, win, ir, buff);
				else
					printf("%-6d %-2d %7d %s\n", metric, ref, use, buff);
			}
		}
		nl++;
	}
}