4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
14 * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
22 #include <sys/socket.h>
23 #include <netinet/in.h>
26 #include <arpa/inet.h>
29 #include "./linux/pkt_sched.h"
33 int get_integer(int *val, char *arg, int base)
40 res = strtol(arg, &ptr, base);
41 if (!ptr || ptr == arg || *ptr || res > INT_MAX || res < INT_MIN)
47 int get_unsigned(unsigned *val, char *arg, int base)
54 res = strtoul(arg, &ptr, base);
55 if (!ptr || ptr == arg || *ptr || res > UINT_MAX)
61 int get_u32(__u32 * val, char *arg, int base)
68 res = strtoul(arg, &ptr, base);
69 if (!ptr || ptr == arg || *ptr || res > 0xFFFFFFFFUL)
75 int get_u16(__u16 * val, char *arg, int base)
82 res = strtoul(arg, &ptr, base);
83 if (!ptr || ptr == arg || *ptr || res > 0xFFFF)
89 int get_u8(__u8 * val, char *arg, int base)
96 res = strtoul(arg, &ptr, base);
97 if (!ptr || ptr == arg || *ptr || res > 0xFF)
103 int get_s16(__s16 * val, char *arg, int base)
110 res = strtol(arg, &ptr, base);
111 if (!ptr || ptr == arg || *ptr || res > 0x7FFF || res < -0x8000)
117 int get_s8(__s8 * val, char *arg, int base)
124 res = strtol(arg, &ptr, base);
125 if (!ptr || ptr == arg || *ptr || res > 0x7F || res < -0x80)
131 int get_addr_1(inet_prefix * addr, char *name, int family)
134 unsigned char *ap = (unsigned char *) addr->data;
137 memset(addr, 0, sizeof(*addr));
139 if (strcmp(name, "default") == 0 ||
140 strcmp(name, "all") == 0 || strcmp(name, "any") == 0) {
141 addr->family = family;
142 addr->bytelen = (family == AF_INET6 ? 16 : 4);
147 if (strchr(name, ':')) {
148 addr->family = AF_INET6;
149 if (family != AF_UNSPEC && family != AF_INET6)
151 if (inet_pton(AF_INET6, name, addr->data) <= 0)
158 addr->family = AF_INET;
159 if (family != AF_UNSPEC && family != AF_INET)
163 for (cp = name, i = 0; *cp; cp++) {
164 if (*cp <= '9' && *cp >= '0') {
165 ap[i] = 10 * ap[i] + (*cp - '0');
168 if (*cp == '.' && ++i <= 3)
175 int get_prefix_1(inet_prefix * dst, char *arg, int family)
181 memset(dst, 0, sizeof(*dst));
183 if (strcmp(arg, "default") == 0 || strcmp(arg, "any") == 0) {
184 dst->family = family;
190 slash = strchr(arg, '/');
193 err = get_addr_1(dst, arg, family);
195 switch (dst->family) {
204 if (get_integer(&plen, slash + 1, 0) || plen > dst->bitlen) {
217 int get_addr(inet_prefix * dst, char *arg, int family)
219 if (family == AF_PACKET) {
220 error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg);
222 if (get_addr_1(dst, arg, family)) {
223 error_msg_and_die("an inet address is expected rather than \"%s\".", arg);
228 int get_prefix(inet_prefix * dst, char *arg, int family)
230 if (family == AF_PACKET) {
231 error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg);
233 if (get_prefix_1(dst, arg, family)) {
234 error_msg_and_die("an inet address is expected rather than \"%s\".", arg);
239 __u32 get_addr32(char *name)
243 if (get_addr_1(&addr, name, AF_INET)) {
244 error_msg_and_die("an IP address is expected rather than \"%s\"", name);
249 void incomplete_command()
251 error_msg("Command line is not complete. Try option \"help\"");
255 void invarg(char *msg, char *arg)
257 error_msg("argument \"%s\" is wrong: %s", arg, msg);
261 void duparg(char *key, char *arg)
263 error_msg("duplicate \"%s\": \"%s\" is the second value.", key, arg);
267 void duparg2(char *key, char *arg)
269 error_msg("either \"%s\" is duplicate, or \"%s\" is a garbage.", key, arg);
273 int matches(char *cmd, char *pattern)
275 int len = strlen(cmd);
277 if (len > strlen(pattern)) {
280 return memcmp(pattern, cmd, len);
283 int inet_addr_match(inet_prefix * a, inet_prefix * b, int bits)
287 int words = bits >> 0x05;
292 if (memcmp(a1, a2, words << 2))
302 mask = htonl((0xffffffff) << (0x20 - bits));
304 if ((w1 ^ w2) & mask)
311 int __iproute2_hz_internal;
316 FILE *fp = fopen("/proc/net/psched", "r");
321 if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2)
331 const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int buflen)
336 return inet_ntop(af, addr, buf, buflen);
343 const char *format_host(int af, int len, void *addr, char *buf, int buflen)
345 #ifdef RESOLVE_HOSTNAMES
347 struct hostent *h_ent;
360 if (len > 0 && (h_ent = gethostbyaddr(addr, len, af)) != NULL) {
361 snprintf(buf, buflen - 1, "%s", h_ent->h_name);
366 return rt_addr_n2a(af, len, addr, buf, buflen);