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
19 #include <arpa/inet.h>
24 int get_integer(int *val, char *arg, int base)
31 res = strtol(arg, &ptr, base);
32 if (!ptr || ptr == arg || *ptr || res > INT_MAX || res < INT_MIN)
38 int get_unsigned(unsigned *val, char *arg, int base)
45 res = strtoul(arg, &ptr, base);
46 if (!ptr || ptr == arg || *ptr || res > UINT_MAX)
52 int get_u32(__u32 * val, char *arg, int base)
59 res = strtoul(arg, &ptr, base);
60 if (!ptr || ptr == arg || *ptr || res > 0xFFFFFFFFUL)
66 int get_u16(__u16 * val, char *arg, int base)
73 res = strtoul(arg, &ptr, base);
74 if (!ptr || ptr == arg || *ptr || res > 0xFFFF)
80 int get_u8(__u8 * val, char *arg, int base)
87 res = strtoul(arg, &ptr, base);
88 if (!ptr || ptr == arg || *ptr || res > 0xFF)
94 int get_s16(__s16 * val, char *arg, int base)
101 res = strtol(arg, &ptr, base);
102 if (!ptr || ptr == arg || *ptr || res > 0x7FFF || res < -0x8000)
108 int get_s8(__s8 * val, char *arg, int base)
115 res = strtol(arg, &ptr, base);
116 if (!ptr || ptr == arg || *ptr || res > 0x7F || res < -0x80)
122 int get_addr_1(inet_prefix * addr, char *name, int family)
125 unsigned char *ap = (unsigned char *) addr->data;
128 memset(addr, 0, sizeof(*addr));
130 if (strcmp(name, "default") == 0 ||
131 strcmp(name, "all") == 0 || strcmp(name, "any") == 0) {
132 addr->family = family;
133 addr->bytelen = (family == AF_INET6 ? 16 : 4);
138 if (strchr(name, ':')) {
139 addr->family = AF_INET6;
140 if (family != AF_UNSPEC && family != AF_INET6)
142 if (inet_pton(AF_INET6, name, addr->data) <= 0)
149 addr->family = AF_INET;
150 if (family != AF_UNSPEC && family != AF_INET)
154 for (cp = name, i = 0; *cp; cp++) {
155 if (*cp <= '9' && *cp >= '0') {
156 ap[i] = 10 * ap[i] + (*cp - '0');
159 if (*cp == '.' && ++i <= 3)
166 int get_prefix_1(inet_prefix * dst, char *arg, int family)
172 memset(dst, 0, sizeof(*dst));
174 if (strcmp(arg, "default") == 0 || strcmp(arg, "any") == 0) {
175 dst->family = family;
181 slash = strchr(arg, '/');
184 err = get_addr_1(dst, arg, family);
186 switch (dst->family) {
195 if (get_integer(&plen, slash + 1, 0) || plen > dst->bitlen) {
208 int get_addr(inet_prefix * dst, char *arg, int family)
210 if (family == AF_PACKET) {
211 error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg);
213 if (get_addr_1(dst, arg, family)) {
214 error_msg_and_die("an inet address is expected rather than \"%s\".", arg);
219 int get_prefix(inet_prefix * dst, char *arg, int family)
221 if (family == AF_PACKET) {
222 error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg);
224 if (get_prefix_1(dst, arg, family)) {
225 error_msg_and_die("an inet address is expected rather than \"%s\".", arg);
230 __u32 get_addr32(char *name)
234 if (get_addr_1(&addr, name, AF_INET)) {
235 error_msg_and_die("an IP address is expected rather than \"%s\"", name);
240 void incomplete_command()
242 error_msg("Command line is not complete. Try option \"help\"");
246 void invarg(char *msg, char *arg)
248 error_msg("argument \"%s\" is wrong: %s", arg, msg);
252 void duparg(char *key, char *arg)
254 error_msg("duplicate \"%s\": \"%s\" is the second value.", key, arg);
258 void duparg2(char *key, char *arg)
260 error_msg("either \"%s\" is duplicate, or \"%s\" is a garbage.", key, arg);
264 int matches(char *cmd, char *pattern)
266 int len = strlen(cmd);
268 if (len > strlen(pattern)) {
271 return memcmp(pattern, cmd, len);
274 int inet_addr_match(inet_prefix * a, inet_prefix * b, int bits)
278 int words = bits >> 0x05;
283 if (memcmp(a1, a2, words << 2))
293 mask = htonl((0xffffffff) << (0x20 - bits));
295 if ((w1 ^ w2) & mask)
302 int __iproute2_hz_internal;
307 FILE *fp = fopen("/proc/net/psched", "r");
312 if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2)
322 const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int buflen)
327 return inet_ntop(af, addr, buf, buflen);
334 const char *format_host(int af, int len, void *addr, char *buf, int buflen)
336 #ifdef RESOLVE_HOSTNAMES
338 struct hostent *h_ent;
351 if (len > 0 && (h_ent = gethostbyaddr(addr, len, af)) != NULL) {
352 snprintf(buf, buflen - 1, "%s", h_ent->h_name);
357 return rt_addr_n2a(af, len, addr, buf, buflen);