osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * utils.c |
| 3 | * |
| 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. |
| 8 | * |
| 9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| 10 | * |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 11 | */ |
| 12 | |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 15 | #include <math.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 16 | #include <unistd.h> |
| 17 | #include <syslog.h> |
| 18 | #include <fcntl.h> |
Strake | 5bd9dd4 | 2012-12-23 08:46:04 -0500 | [diff] [blame] | 19 | #include <limits.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 20 | #include <sys/socket.h> |
| 21 | #include <netinet/in.h> |
| 22 | #include <string.h> |
| 23 | #include <netdb.h> |
| 24 | #include <arpa/inet.h> |
osdl.org!shemminger | 5dfe556 | 2004-06-08 23:50:43 +0000 | [diff] [blame] | 25 | #include <asm/types.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 26 | #include <linux/pkt_sched.h> |
Strake | 5bd9dd4 | 2012-12-23 08:46:04 -0500 | [diff] [blame] | 27 | #include <linux/param.h> |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 28 | #include <time.h> |
| 29 | #include <sys/time.h> |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 30 | #include <errno.h> |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 31 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 32 | |
| 33 | #include "utils.h" |
| 34 | |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame^] | 35 | int timestamp_short = 0; |
| 36 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 37 | int get_integer(int *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 38 | { |
| 39 | long res; |
| 40 | char *ptr; |
| 41 | |
| 42 | if (!arg || !*arg) |
| 43 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 44 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 45 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 46 | |
| 47 | /* If there were no digits at all, strtol() stores |
| 48 | * the original value of nptr in *endptr (and returns 0). |
| 49 | * In particular, if *nptr is not '\0' but **endptr is '\0' on return, |
| 50 | * the entire string is valid. |
| 51 | */ |
| 52 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 53 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 54 | |
| 55 | /* If an underflow occurs, strtol() returns LONG_MIN. |
| 56 | * If an overflow occurs, strtol() returns LONG_MAX. |
| 57 | * In both cases, errno is set to ERANGE. |
| 58 | */ |
| 59 | if ((res == LONG_MAX || res == LONG_MIN) && errno == ERANGE) |
| 60 | return -1; |
| 61 | |
| 62 | /* Outside range of int */ |
| 63 | if (res < INT_MIN || res > INT_MAX) |
| 64 | return -1; |
| 65 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 66 | *val = res; |
| 67 | return 0; |
| 68 | } |
| 69 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 70 | int mask2bits(__u32 netmask) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 71 | { |
| 72 | unsigned bits = 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 73 | __u32 mask = ntohl(netmask); |
| 74 | __u32 host = ~mask; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 75 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 76 | /* a valid netmask must be 2^n - 1 */ |
| 77 | if ((host & (host + 1)) != 0) |
| 78 | return -1; |
| 79 | |
| 80 | for (; mask; mask <<= 1) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 81 | ++bits; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 82 | return bits; |
| 83 | } |
| 84 | |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 85 | static int get_netmask(unsigned *val, const char *arg, int base) |
| 86 | { |
| 87 | inet_prefix addr; |
| 88 | |
| 89 | if (!get_unsigned(val, arg, base)) |
| 90 | return 0; |
| 91 | |
| 92 | /* try coverting dotted quad to CIDR */ |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 93 | if (!get_addr_1(&addr, arg, AF_INET) && addr.family == AF_INET) { |
| 94 | int b = mask2bits(addr.data[0]); |
| 95 | |
| 96 | if (b >= 0) { |
| 97 | *val = b; |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 98 | return 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 99 | } |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | return -1; |
| 103 | } |
| 104 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 105 | int get_unsigned(unsigned *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 106 | { |
| 107 | unsigned long res; |
| 108 | char *ptr; |
| 109 | |
| 110 | if (!arg || !*arg) |
| 111 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 112 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 113 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 114 | |
| 115 | /* empty string or trailing non-digits */ |
| 116 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 117 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 118 | |
| 119 | /* overflow */ |
| 120 | if (res == ULONG_MAX && errno == ERANGE) |
| 121 | return -1; |
| 122 | |
| 123 | /* out side range of unsigned */ |
| 124 | if (res > UINT_MAX) |
| 125 | return -1; |
| 126 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 127 | *val = res; |
| 128 | return 0; |
| 129 | } |
| 130 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 131 | /* |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 132 | * get_time_rtt is "translated" from a similar routine "get_time" in |
| 133 | * tc_util.c. We don't use the exact same routine because tc passes |
| 134 | * microseconds to the kernel and the callers of get_time_rtt want to |
| 135 | * pass milliseconds (standard unit for rtt values since 2.6.27), and |
| 136 | * have a different assumption for the units of a "raw" number. |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 137 | */ |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 138 | int get_time_rtt(unsigned *val, const char *arg, int *raw) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 139 | { |
| 140 | double t; |
| 141 | unsigned long res; |
| 142 | char *p; |
| 143 | |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 144 | if (strchr(arg, '.') != NULL) { |
| 145 | t = strtod(arg, &p); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 146 | if (t < 0.0) |
| 147 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 148 | |
Florian Westphal | 4d9a264 | 2014-11-11 01:38:21 +0100 | [diff] [blame] | 149 | /* no digits? */ |
| 150 | if (!p || p == arg) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 151 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 152 | |
| 153 | /* over/underflow */ |
| 154 | if ((t == HUGE_VALF || t == HUGE_VALL) && errno == ERANGE) |
| 155 | return -1; |
| 156 | } else { |
| 157 | res = strtoul(arg, &p, 0); |
| 158 | |
Florian Westphal | 4d9a264 | 2014-11-11 01:38:21 +0100 | [diff] [blame] | 159 | /* empty string? */ |
| 160 | if (!p || p == arg) |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 161 | return -1; |
| 162 | |
| 163 | /* overflow */ |
| 164 | if (res == ULONG_MAX && errno == ERANGE) |
| 165 | return -1; |
| 166 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 167 | t = (double)res; |
| 168 | } |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 169 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 170 | if (p == arg) |
| 171 | return -1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 172 | *raw = 1; |
| 173 | |
| 174 | if (*p) { |
| 175 | *raw = 0; |
| 176 | if (strcasecmp(p, "s") == 0 || strcasecmp(p, "sec")==0 || |
| 177 | strcasecmp(p, "secs")==0) |
Gerrit Renker | fca1dae | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 178 | t *= 1000; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 179 | else if (strcasecmp(p, "ms") == 0 || strcasecmp(p, "msec")==0 || |
| 180 | strcasecmp(p, "msecs") == 0) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 181 | t *= 1.0; /* allow suffix, do nothing */ |
| 182 | else |
| 183 | return -1; |
| 184 | } |
| 185 | |
| 186 | /* emulate ceil() without having to bring-in -lm and always be >= 1 */ |
| 187 | |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 188 | *val = t; |
| 189 | if (*val < t) |
| 190 | *val += 1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 191 | |
| 192 | return 0; |
| 193 | |
| 194 | } |
| 195 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 196 | int get_u64(__u64 *val, const char *arg, int base) |
| 197 | { |
| 198 | unsigned long long res; |
| 199 | char *ptr; |
| 200 | |
| 201 | if (!arg || !*arg) |
| 202 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 203 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 204 | res = strtoull(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 205 | |
| 206 | /* empty string or trailing non-digits */ |
| 207 | if (!ptr || ptr == arg || *ptr) |
| 208 | return -1; |
| 209 | |
| 210 | /* overflow */ |
| 211 | if (res == ULLONG_MAX && errno == ERANGE) |
| 212 | return -1; |
| 213 | |
| 214 | /* in case ULL is 128 bits */ |
| 215 | if (res > 0xFFFFFFFFFFFFFFFFULL) |
| 216 | return -1; |
| 217 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 218 | *val = res; |
| 219 | return 0; |
| 220 | } |
| 221 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 222 | int get_u32(__u32 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 223 | { |
| 224 | unsigned long res; |
| 225 | char *ptr; |
| 226 | |
| 227 | if (!arg || !*arg) |
| 228 | return -1; |
| 229 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 230 | |
| 231 | /* empty string or trailing non-digits */ |
| 232 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 233 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 234 | |
| 235 | /* overflow */ |
| 236 | if (res == ULONG_MAX && errno == ERANGE) |
| 237 | return -1; |
| 238 | |
| 239 | /* in case UL > 32 bits */ |
| 240 | if (res > 0xFFFFFFFFUL) |
| 241 | return -1; |
| 242 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 243 | *val = res; |
| 244 | return 0; |
| 245 | } |
| 246 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 247 | int get_u16(__u16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 248 | { |
| 249 | unsigned long res; |
| 250 | char *ptr; |
| 251 | |
| 252 | if (!arg || !*arg) |
| 253 | return -1; |
| 254 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 255 | |
| 256 | /* empty string or trailing non-digits */ |
| 257 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 258 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 259 | |
| 260 | /* overflow */ |
| 261 | if (res == ULONG_MAX && errno == ERANGE) |
| 262 | return -1; |
| 263 | |
| 264 | if (res > 0xFFFFUL) |
| 265 | return -1; |
| 266 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 267 | *val = res; |
| 268 | return 0; |
| 269 | } |
| 270 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 271 | int get_u8(__u8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 272 | { |
| 273 | unsigned long res; |
| 274 | char *ptr; |
| 275 | |
| 276 | if (!arg || !*arg) |
| 277 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 278 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 279 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 280 | /* empty string or trailing non-digits */ |
| 281 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 282 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 283 | |
| 284 | /* overflow */ |
| 285 | if (res == ULONG_MAX && errno == ERANGE) |
| 286 | return -1; |
| 287 | |
| 288 | if (res > 0xFFUL) |
| 289 | return -1; |
| 290 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 291 | *val = res; |
| 292 | return 0; |
| 293 | } |
| 294 | |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 295 | int get_s32(__s32 *val, const char *arg, int base) |
| 296 | { |
| 297 | long res; |
| 298 | char *ptr; |
| 299 | |
| 300 | errno = 0; |
| 301 | |
| 302 | if (!arg || !*arg) |
| 303 | return -1; |
| 304 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 305 | if (!ptr || ptr == arg || *ptr) |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 306 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 307 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 308 | return -1; |
| 309 | if (res > INT32_MAX || res < INT32_MIN) |
| 310 | return -1; |
| 311 | |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 312 | *val = res; |
| 313 | return 0; |
| 314 | } |
| 315 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 316 | int get_s16(__s16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 317 | { |
| 318 | long res; |
| 319 | char *ptr; |
| 320 | |
| 321 | if (!arg || !*arg) |
| 322 | return -1; |
| 323 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 324 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 325 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 326 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 327 | return -1; |
| 328 | if (res > 0x7FFF || res < -0x8000) |
| 329 | return -1; |
| 330 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 331 | *val = res; |
| 332 | return 0; |
| 333 | } |
| 334 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 335 | int get_s8(__s8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 336 | { |
| 337 | long res; |
| 338 | char *ptr; |
| 339 | |
| 340 | if (!arg || !*arg) |
| 341 | return -1; |
| 342 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 343 | if (!ptr || ptr == arg || *ptr) |
| 344 | return -1; |
| 345 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 346 | return -1; |
| 347 | if (res > 0x7F || res < -0x80) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 348 | return -1; |
| 349 | *val = res; |
| 350 | return 0; |
| 351 | } |
| 352 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 353 | /* This uses a non-standard parsing (ie not inet_aton, or inet_pton) |
| 354 | * because of legacy choice to parse 10.8 as 10.8.0.0 not 10.0.0.8 |
| 355 | */ |
| 356 | static int get_addr_ipv4(__u8 *ap, const char *cp) |
| 357 | { |
| 358 | int i; |
| 359 | |
| 360 | for (i = 0; i < 4; i++) { |
| 361 | unsigned long n; |
| 362 | char *endp; |
| 363 | |
| 364 | n = strtoul(cp, &endp, 0); |
| 365 | if (n > 255) |
| 366 | return -1; /* bogus network value */ |
| 367 | |
| 368 | if (endp == cp) /* no digits */ |
| 369 | return -1; |
| 370 | |
| 371 | ap[i] = n; |
| 372 | |
| 373 | if (*endp == '\0') |
| 374 | break; |
| 375 | |
| 376 | if (i == 3 || *endp != '.') |
| 377 | return -1; /* extra characters */ |
| 378 | cp = endp + 1; |
| 379 | } |
| 380 | |
| 381 | return 1; |
| 382 | } |
| 383 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 384 | int get_addr_1(inet_prefix *addr, const char *name, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 385 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 386 | memset(addr, 0, sizeof(*addr)); |
| 387 | |
| 388 | if (strcmp(name, "default") == 0 || |
| 389 | strcmp(name, "all") == 0 || |
| 390 | strcmp(name, "any") == 0) { |
| 391 | if (family == AF_DECnet) |
| 392 | return -1; |
| 393 | addr->family = family; |
| 394 | addr->bytelen = (family == AF_INET6 ? 16 : 4); |
| 395 | addr->bitlen = -1; |
| 396 | return 0; |
| 397 | } |
| 398 | |
| 399 | if (strchr(name, ':')) { |
| 400 | addr->family = AF_INET6; |
| 401 | if (family != AF_UNSPEC && family != AF_INET6) |
| 402 | return -1; |
| 403 | if (inet_pton(AF_INET6, name, addr->data) <= 0) |
| 404 | return -1; |
| 405 | addr->bytelen = 16; |
| 406 | addr->bitlen = -1; |
| 407 | return 0; |
| 408 | } |
| 409 | |
| 410 | if (family == AF_DECnet) { |
| 411 | struct dn_naddr dna; |
| 412 | addr->family = AF_DECnet; |
| 413 | if (dnet_pton(AF_DECnet, name, &dna) <= 0) |
| 414 | return -1; |
| 415 | memcpy(addr->data, dna.a_addr, 2); |
| 416 | addr->bytelen = 2; |
| 417 | addr->bitlen = -1; |
| 418 | return 0; |
| 419 | } |
| 420 | |
| 421 | addr->family = AF_INET; |
| 422 | if (family != AF_UNSPEC && family != AF_INET) |
| 423 | return -1; |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 424 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 425 | if (get_addr_ipv4((__u8 *)addr->data, name) <= 0) |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 426 | return -1; |
| 427 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 428 | addr->bytelen = 4; |
| 429 | addr->bitlen = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 430 | return 0; |
| 431 | } |
| 432 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 433 | int get_prefix_1(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 434 | { |
| 435 | int err; |
| 436 | unsigned plen; |
| 437 | char *slash; |
| 438 | |
| 439 | memset(dst, 0, sizeof(*dst)); |
| 440 | |
| 441 | if (strcmp(arg, "default") == 0 || |
| 442 | strcmp(arg, "any") == 0 || |
| 443 | strcmp(arg, "all") == 0) { |
| 444 | if (family == AF_DECnet) |
| 445 | return -1; |
| 446 | dst->family = family; |
| 447 | dst->bytelen = 0; |
| 448 | dst->bitlen = 0; |
| 449 | return 0; |
| 450 | } |
| 451 | |
| 452 | slash = strchr(arg, '/'); |
| 453 | if (slash) |
| 454 | *slash = 0; |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 455 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 456 | err = get_addr_1(dst, arg, family); |
| 457 | if (err == 0) { |
| 458 | switch(dst->family) { |
Stephen Hemminger | 656111b | 2014-08-04 10:30:35 -0700 | [diff] [blame] | 459 | case AF_INET6: |
| 460 | dst->bitlen = 128; |
| 461 | break; |
| 462 | case AF_DECnet: |
| 463 | dst->bitlen = 16; |
| 464 | break; |
| 465 | default: |
| 466 | case AF_INET: |
| 467 | dst->bitlen = 32; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 468 | } |
| 469 | if (slash) { |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 470 | if (get_netmask(&plen, slash+1, 0) |
Stephen Hemminger | 656111b | 2014-08-04 10:30:35 -0700 | [diff] [blame] | 471 | || plen > dst->bitlen) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 472 | err = -1; |
| 473 | goto done; |
| 474 | } |
net[shemminger]!shemminger | f082b64 | 2005-03-30 18:16:10 +0000 | [diff] [blame] | 475 | dst->flags |= PREFIXLEN_SPECIFIED; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 476 | dst->bitlen = plen; |
| 477 | } |
| 478 | } |
| 479 | done: |
| 480 | if (slash) |
| 481 | *slash = '/'; |
| 482 | return err; |
| 483 | } |
| 484 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 485 | int get_addr(inet_prefix *dst, const char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 486 | { |
| 487 | if (family == AF_PACKET) { |
| 488 | fprintf(stderr, "Error: \"%s\" may be inet address, but it is not allowed in this context.\n", arg); |
| 489 | exit(1); |
| 490 | } |
| 491 | if (get_addr_1(dst, arg, family)) { |
| 492 | fprintf(stderr, "Error: an inet address is expected rather than \"%s\".\n", arg); |
| 493 | exit(1); |
| 494 | } |
| 495 | return 0; |
| 496 | } |
| 497 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 498 | int get_prefix(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 499 | { |
| 500 | if (family == AF_PACKET) { |
| 501 | fprintf(stderr, "Error: \"%s\" may be inet prefix, but it is not allowed in this context.\n", arg); |
| 502 | exit(1); |
| 503 | } |
| 504 | if (get_prefix_1(dst, arg, family)) { |
| 505 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", arg); |
| 506 | exit(1); |
| 507 | } |
| 508 | return 0; |
| 509 | } |
| 510 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 511 | __u32 get_addr32(const char *name) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 512 | { |
| 513 | inet_prefix addr; |
| 514 | if (get_addr_1(&addr, name, AF_INET)) { |
| 515 | fprintf(stderr, "Error: an IP address is expected rather than \"%s\"\n", name); |
| 516 | exit(1); |
| 517 | } |
| 518 | return addr.data[0]; |
| 519 | } |
| 520 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 521 | void incomplete_command(void) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 522 | { |
| 523 | fprintf(stderr, "Command line is not complete. Try option \"help\"\n"); |
| 524 | exit(-1); |
| 525 | } |
| 526 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 527 | void missarg(const char *key) |
| 528 | { |
| 529 | fprintf(stderr, "Error: argument \"%s\" is required\n", key); |
| 530 | exit(-1); |
| 531 | } |
| 532 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 533 | void invarg(const char *msg, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 534 | { |
| 535 | fprintf(stderr, "Error: argument \"%s\" is wrong: %s\n", arg, msg); |
| 536 | exit(-1); |
| 537 | } |
| 538 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 539 | void duparg(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 540 | { |
| 541 | fprintf(stderr, "Error: duplicate \"%s\": \"%s\" is the second value.\n", key, arg); |
| 542 | exit(-1); |
| 543 | } |
| 544 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 545 | void duparg2(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 546 | { |
| 547 | fprintf(stderr, "Error: either \"%s\" is duplicate, or \"%s\" is a garbage.\n", key, arg); |
| 548 | exit(-1); |
| 549 | } |
| 550 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 551 | int matches(const char *cmd, const char *pattern) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 552 | { |
| 553 | int len = strlen(cmd); |
| 554 | if (len > strlen(pattern)) |
| 555 | return -1; |
| 556 | return memcmp(pattern, cmd, len); |
| 557 | } |
| 558 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 559 | int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 560 | { |
Stephen Hemminger | 9626dfd | 2006-12-05 09:59:59 -0800 | [diff] [blame] | 561 | const __u32 *a1 = a->data; |
| 562 | const __u32 *a2 = b->data; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 563 | int words = bits >> 0x05; |
| 564 | |
| 565 | bits &= 0x1f; |
| 566 | |
| 567 | if (words) |
| 568 | if (memcmp(a1, a2, words << 2)) |
| 569 | return -1; |
| 570 | |
| 571 | if (bits) { |
| 572 | __u32 w1, w2; |
| 573 | __u32 mask; |
| 574 | |
| 575 | w1 = a1[words]; |
| 576 | w2 = a2[words]; |
| 577 | |
| 578 | mask = htonl((0xffffffff) << (0x20 - bits)); |
| 579 | |
| 580 | if ((w1 ^ w2) & mask) |
| 581 | return 1; |
| 582 | } |
| 583 | |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | int __iproute2_hz_internal; |
| 588 | |
| 589 | int __get_hz(void) |
| 590 | { |
| 591 | char name[1024]; |
| 592 | int hz = 0; |
| 593 | FILE *fp; |
| 594 | |
| 595 | if (getenv("HZ")) |
| 596 | return atoi(getenv("HZ")) ? : HZ; |
| 597 | |
| 598 | if (getenv("PROC_NET_PSCHED")) { |
| 599 | snprintf(name, sizeof(name)-1, "%s", getenv("PROC_NET_PSCHED")); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 600 | } else if (getenv("PROC_ROOT")) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 601 | snprintf(name, sizeof(name)-1, "%s/net/psched", getenv("PROC_ROOT")); |
| 602 | } else { |
| 603 | strcpy(name, "/proc/net/psched"); |
| 604 | } |
| 605 | fp = fopen(name, "r"); |
| 606 | |
| 607 | if (fp) { |
| 608 | unsigned nom, denom; |
| 609 | if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2) |
| 610 | if (nom == 1000000) |
| 611 | hz = denom; |
| 612 | fclose(fp); |
| 613 | } |
| 614 | if (hz) |
| 615 | return hz; |
| 616 | return HZ; |
| 617 | } |
| 618 | |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 619 | int __iproute2_user_hz_internal; |
| 620 | |
| 621 | int __get_user_hz(void) |
| 622 | { |
| 623 | return sysconf(_SC_CLK_TCK); |
| 624 | } |
| 625 | |
Stephen Hemminger | 656111b | 2014-08-04 10:30:35 -0700 | [diff] [blame] | 626 | const char *rt_addr_n2a(int af, const void *addr, char *buf, int buflen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 627 | { |
| 628 | switch (af) { |
| 629 | case AF_INET: |
| 630 | case AF_INET6: |
| 631 | return inet_ntop(af, addr, buf, buflen); |
| 632 | case AF_IPX: |
| 633 | return ipx_ntop(af, addr, buf, buflen); |
| 634 | case AF_DECnet: |
| 635 | { |
| 636 | struct dn_naddr dna = { 2, { 0, 0, }}; |
| 637 | memcpy(dna.a_addr, addr, 2); |
| 638 | return dnet_ntop(af, &dna, buf, buflen); |
| 639 | } |
| 640 | default: |
| 641 | return "???"; |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | #ifdef RESOLVE_HOSTNAMES |
| 646 | struct namerec |
| 647 | { |
| 648 | struct namerec *next; |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 649 | const char *name; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 650 | inet_prefix addr; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 651 | }; |
| 652 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 653 | #define NHASH 257 |
| 654 | static struct namerec *nht[NHASH]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 655 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 656 | static const char *resolve_address(const void *addr, int len, int af) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 657 | { |
| 658 | struct namerec *n; |
| 659 | struct hostent *h_ent; |
| 660 | unsigned hash; |
| 661 | static int notfirst; |
| 662 | |
| 663 | |
| 664 | if (af == AF_INET6 && ((__u32*)addr)[0] == 0 && |
| 665 | ((__u32*)addr)[1] == 0 && ((__u32*)addr)[2] == htonl(0xffff)) { |
| 666 | af = AF_INET; |
| 667 | addr += 12; |
| 668 | len = 4; |
| 669 | } |
| 670 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 671 | hash = *(__u32 *)(addr + len - 4) % NHASH; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 672 | |
| 673 | for (n = nht[hash]; n; n = n->next) { |
| 674 | if (n->addr.family == af && |
| 675 | n->addr.bytelen == len && |
| 676 | memcmp(n->addr.data, addr, len) == 0) |
| 677 | return n->name; |
| 678 | } |
| 679 | if ((n = malloc(sizeof(*n))) == NULL) |
| 680 | return NULL; |
| 681 | n->addr.family = af; |
| 682 | n->addr.bytelen = len; |
| 683 | n->name = NULL; |
| 684 | memcpy(n->addr.data, addr, len); |
| 685 | n->next = nht[hash]; |
| 686 | nht[hash] = n; |
| 687 | if (++notfirst == 1) |
| 688 | sethostent(1); |
| 689 | fflush(stdout); |
| 690 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 691 | if ((h_ent = gethostbyaddr(addr, len, af)) != NULL) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 692 | n->name = strdup(h_ent->h_name); |
| 693 | |
| 694 | /* Even if we fail, "negative" entry is remembered. */ |
| 695 | return n->name; |
| 696 | } |
| 697 | #endif |
| 698 | |
| 699 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 700 | const char *format_host(int af, int len, const void *addr, |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 701 | char *buf, int buflen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 702 | { |
| 703 | #ifdef RESOLVE_HOSTNAMES |
| 704 | if (resolve_hosts) { |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 705 | const char *n; |
| 706 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 707 | if (len <= 0) { |
| 708 | switch (af) { |
| 709 | case AF_INET: |
| 710 | len = 4; |
| 711 | break; |
| 712 | case AF_INET6: |
| 713 | len = 16; |
| 714 | break; |
| 715 | case AF_IPX: |
| 716 | len = 10; |
| 717 | break; |
| 718 | #ifdef AF_DECnet |
| 719 | /* I see no reasons why gethostbyname |
| 720 | may not work for DECnet */ |
| 721 | case AF_DECnet: |
| 722 | len = 2; |
| 723 | break; |
| 724 | #endif |
| 725 | default: ; |
| 726 | } |
| 727 | } |
| 728 | if (len > 0 && |
| 729 | (n = resolve_address(addr, len, af)) != NULL) |
| 730 | return n; |
| 731 | } |
| 732 | #endif |
Stephen Hemminger | 656111b | 2014-08-04 10:30:35 -0700 | [diff] [blame] | 733 | return rt_addr_n2a(af, addr, buf, buflen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 737 | char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 738 | { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 739 | char *ptr = buf; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 740 | int i; |
| 741 | |
| 742 | for (i=0; i<len; i++) { |
| 743 | if (blen < 3) |
| 744 | break; |
| 745 | sprintf(ptr, "%02x", str[i]); |
| 746 | ptr += 2; |
| 747 | blen -= 2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 748 | } |
| 749 | return buf; |
| 750 | } |
| 751 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 752 | __u8* hexstring_a2n(const char *str, __u8 *buf, int blen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 753 | { |
| 754 | int cnt = 0; |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 755 | char *endptr; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 756 | |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 757 | if (strlen(str) % 2) |
| 758 | return NULL; |
| 759 | while (cnt < blen && strlen(str) > 1) { |
| 760 | unsigned int tmp; |
| 761 | char tmpstr[3]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 762 | |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 763 | strncpy(tmpstr, str, 2); |
| 764 | tmpstr[2] = '\0'; |
| 765 | tmp = strtoul(tmpstr, &endptr, 16); |
| 766 | if (errno != 0 || tmp > 0xFF || *endptr != '\0') |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 767 | return NULL; |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 768 | buf[cnt++] = tmp; |
| 769 | str += 2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 770 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 771 | return buf; |
| 772 | } |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 773 | |
| 774 | int print_timestamp(FILE *fp) |
| 775 | { |
| 776 | struct timeval tv; |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame^] | 777 | struct tm *tm; |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 778 | |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 779 | gettimeofday(&tv, NULL); |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame^] | 780 | tm = localtime(&tv.tv_sec); |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 781 | |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame^] | 782 | if (timestamp_short) { |
| 783 | char tshort[40]; |
| 784 | |
| 785 | strftime(tshort, sizeof(tshort), "%Y-%m-%dT%H:%M:%S", tm); |
| 786 | fprintf(fp, "[%s.%06ld] ", tshort, tv.tv_usec); |
| 787 | } else { |
| 788 | char *tstr = asctime(tm); |
| 789 | |
| 790 | tstr[strlen(tstr)-1] = 0; |
| 791 | fprintf(fp, "Timestamp: %s %ld usec\n", |
| 792 | tstr, tv.tv_usec); |
| 793 | } |
| 794 | |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 795 | return 0; |
| 796 | } |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 797 | |
| 798 | int cmdlineno; |
| 799 | |
| 800 | /* Like glibc getline but handle continuation lines and comments */ |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 801 | ssize_t getcmdline(char **linep, size_t *lenp, FILE *in) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 802 | { |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 803 | ssize_t cc; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 804 | char *cp; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 805 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 806 | if ((cc = getline(linep, lenp, in)) < 0) |
| 807 | return cc; /* eof or error */ |
| 808 | ++cmdlineno; |
| 809 | |
| 810 | cp = strchr(*linep, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 811 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 812 | *cp = '\0'; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 813 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 814 | while ((cp = strstr(*linep, "\\\n")) != NULL) { |
| 815 | char *line1 = NULL; |
| 816 | size_t len1 = 0; |
Stephen Hemminger | 21a85d3 | 2011-07-11 10:38:10 -0700 | [diff] [blame] | 817 | ssize_t cc1; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 818 | |
| 819 | if ((cc1 = getline(&line1, &len1, in)) < 0) { |
| 820 | fprintf(stderr, "Missing continuation line\n"); |
| 821 | return cc1; |
| 822 | } |
| 823 | |
| 824 | ++cmdlineno; |
| 825 | *cp = 0; |
| 826 | |
| 827 | cp = strchr(line1, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 828 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 829 | *cp = '\0'; |
| 830 | |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 831 | *lenp = strlen(*linep) + strlen(line1) + 1; |
| 832 | *linep = realloc(*linep, *lenp); |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 833 | if (!*linep) { |
| 834 | fprintf(stderr, "Out of memory\n"); |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 835 | *lenp = 0; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 836 | return -1; |
| 837 | } |
| 838 | cc += cc1 - 2; |
| 839 | strcat(*linep, line1); |
| 840 | free(line1); |
| 841 | } |
| 842 | return cc; |
| 843 | } |
| 844 | |
| 845 | /* split command line into argument vector */ |
| 846 | int makeargs(char *line, char *argv[], int maxargs) |
| 847 | { |
| 848 | static const char ws[] = " \t\r\n"; |
| 849 | char *cp; |
| 850 | int argc = 0; |
| 851 | |
| 852 | for (cp = strtok(line, ws); cp; cp = strtok(NULL, ws)) { |
| 853 | if (argc >= (maxargs - 1)) { |
| 854 | fprintf(stderr, "Too many arguments to command\n"); |
| 855 | exit(1); |
| 856 | } |
| 857 | argv[argc++] = cp; |
| 858 | } |
| 859 | argv[argc] = NULL; |
| 860 | |
| 861 | return argc; |
| 862 | } |
WANG Cong | aa574cd | 2013-10-16 22:03:48 -0700 | [diff] [blame] | 863 | |
| 864 | int inet_get_addr(const char *src, __u32 *dst, struct in6_addr *dst6) |
| 865 | { |
| 866 | if (strchr(src, ':')) |
| 867 | return inet_pton(AF_INET6, src, dst6); |
| 868 | else |
| 869 | return inet_pton(AF_INET, src, dst); |
| 870 | } |