release/src/router/shared/misc.c

   1 /*
   2
   3         Tomato Firmware
   4         Copyright (C) 2006-2009 Jonathan Zarate
   5
   6 */
   7 #include <string.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <sys/stat.h>
  13 #include <stdarg.h>
  14 #include <syslog.h>
  15 #include <sys/ioctl.h>
  16 #include <net/if.h>
  17 #include <netinet/in.h>
  18 #include <sys/socket.h>
  19 #include <arpa/inet.h>
  20 #include <ifaddrs.h>
  21 #include <sys/sysinfo.h>
  22 #include <sys/types.h>
  23 #include <sys/wait.h>
  24
  25 #include <bcmnvram.h>
  26 #include <bcmdevs.h>
  27 #include <wlutils.h>
  28
  29 #include "shutils.h"
  30 #include "shared.h"
  31
  32
  33 int get_wan_proto(void)
  34 {
  35         const char *names[] = { // order must be synced with def at shared.h
  36                 "static",
  37                 "dhcp",
  38                 "l2tp",
  39                 "pppoe",
  40                 "pptp",
  41                 "ppp3g",
  42                 NULL
  43         };
  44         int i;
  45         const char *p;
  46
  47         p = nvram_safe_get("wan_proto");
  48         for (i = 0; names[i] != NULL; ++i) {
  49                 if (strcmp(p, names[i]) == 0) return i + 1;
  50         }
  51         return WP_DISABLED;
  52 }
  53
  54 #ifdef TCONFIG_IPV6
  55 int get_ipv6_service(void)
  56 {
  57         const char *names[] = { // order must be synced with def at shared.h
  58                 "native",       // IPV6_NATIVE
  59                 "native-pd",    // IPV6_NATIVE_DHCP
  60                 "6to4",         // IPV6_ANYCAST_6TO4
  61                 "sit",          // IPV6_6IN4
  62                 "other",        // IPV6_MANUAL
  63                 "6rd",          // IPV6_6RD
  64                 "6rd-pd",       // IPV6_6RD_DHCP
  65                 NULL
  66         };
  67         int i;
  68         const char *p;
  69
  70         p = nvram_safe_get("ipv6_service");
  71         for (i = 0; names[i] != NULL; ++i) {
  72                 if (strcmp(p, names[i]) == 0) return i + 1;
  73         }
  74         return IPV6_DISABLED;
  75 }
  76
  77 const char *ipv6_router_address(struct in6_addr *in6addr)
  78 {
  79         char *p;
  80         struct in6_addr addr;
  81         static char addr6[INET6_ADDRSTRLEN];
  82
  83         addr6[0] = '\0';
  84
  85         if ((p = nvram_get("ipv6_rtr_addr")) && *p) {
  86                 inet_pton(AF_INET6, p, &addr);
  87         }
  88         else if ((p = nvram_get("ipv6_prefix")) && *p) {
  89                 inet_pton(AF_INET6, p, &addr);
  90                 addr.s6_addr16[7] = htons(0x0001);
  91         }
  92         else {
  93                 return addr6;
  94         }
  95
  96         inet_ntop(AF_INET6, &addr, addr6, sizeof(addr6));
  97         if (in6addr)
  98                 memcpy(in6addr, &addr, sizeof(addr));
  99
 100         return addr6;
 101 }
 102
 103 int calc_6rd_local_prefix(const struct in6_addr *prefix,
 104         int prefix_len, int relay_prefix_len,
 105         const struct in_addr *local_ip,
 106         struct in6_addr *local_prefix, int *local_prefix_len)
 107 {
 108         // the following code is based on ipv6calc's code
 109         uint32_t local_ip_bits, j;
 110         int i;
 111
 112         if (!prefix || !local_ip || !local_prefix || !local_prefix_len) {
 113                 return 0;
 114         }
 115
 116         *local_prefix_len = prefix_len + 32 - relay_prefix_len;
 117         if (*local_prefix_len > 64) {
 118                 return 0;
 119         }
 120
 121         local_ip_bits = ntohl(local_ip->s_addr) << relay_prefix_len;
 122
 123         for (i=0; i<4; i++) {
 124                 local_prefix->s6_addr32[i] = prefix->s6_addr32[i];
 125         }
 126
 127         for (j = 0x80000000, i = prefix_len; i < *local_prefix_len; i++, j>>=1)
 128         {
 129                 if (local_ip_bits & j)
 130                         local_prefix->s6_addr[i>>3] |= (0x80 >> (i & 0x7));
 131         }
 132
 133         return 1;
 134 }
 135 #endif
 136
 137 int using_dhcpc(void)
 138 {
 139         switch (get_wan_proto()) {
 140         case WP_DHCP:
 141                 return 1;
 142         case WP_L2TP:
 143         case WP_PPTP:
 144                 return nvram_get_int("pptp_dhcp");
 145         }
 146         return 0;
 147 }
 148
 149 int wl_client(int unit, int subunit)
 150 {
 151         char *mode = nvram_safe_get(wl_nvname("mode", unit, subunit));
 152
 153         return ((strcmp(mode, "sta") == 0) || (strcmp(mode, "wet") == 0));
 154 }
 155
 156 int foreach_wif(int include_vifs, void *param,
 157         int (*func)(int idx, int unit, int subunit, void *param))
 158 {
 159         char ifnames[256];
 160         char name[64], ifname[64], *next = NULL;
 161         int unit = -1, subunit = -1;
 162         int i;
 163         int ret = 0;
 164
 165         snprintf(ifnames, sizeof(ifnames), "%s %s %s %s %s %s %s %s %s %s",
 166                 nvram_safe_get("lan_ifnames"),
 167                 nvram_safe_get("lan1_ifnames"),
 168                 nvram_safe_get("lan2_ifnames"),
 169                 nvram_safe_get("lan3_ifnames"),
 170                 nvram_safe_get("wan_ifnames"),
 171                 nvram_safe_get("wl_ifname"),
 172                 nvram_safe_get("wl0_ifname"),
 173                 nvram_safe_get("wl0_vifs"),
 174                 nvram_safe_get("wl1_ifname"),
 175                 nvram_safe_get("wl1_vifs"));
 176         remove_dups(ifnames, sizeof(ifnames));
 177         sort_list(ifnames, sizeof(ifnames));
 178
 179         i = 0;
 180         foreach(name, ifnames, next) {
 181                 if (nvifname_to_osifname(name, ifname, sizeof(ifname)) != 0)
 182                         continue;
 183
 184                 if (wl_probe(ifname) || wl_ioctl(ifname, WLC_GET_INSTANCE, &unit, sizeof(unit)))
 185                         continue;
 186
 187                 // Convert eth name to wl name
 188                 if (osifname_to_nvifname(name, ifname, sizeof(ifname)) != 0)
 189                         continue;
 190
 191                 // Slave intefaces have a '.' in the name
 192                 if (strchr(ifname, '.') && !include_vifs)
 193                         continue;
 194
 195                 if (get_ifname_unit(ifname, &unit, &subunit) < 0)
 196                         continue;
 197
 198                 ret |= func(i++, unit, subunit, param);
 199         }
 200         return ret;
 201 }
 202
 203 void notice_set(const char *path, const char *format, ...)
 204 {
 205         char p[256];
 206         char buf[2048];
 207         va_list args;
 208
 209         va_start(args, format);
 210         vsnprintf(buf, sizeof(buf), format, args);
 211         va_end(args);
 212
 213         mkdir("/var/notice", 0755);
 214         snprintf(p, sizeof(p), "/var/notice/%s", path);
 215         f_write_string(p, buf, 0, 0);
 216         if (buf[0]) syslog(LOG_INFO, "notice[%s]: %s", path, buf);
 217 }
 218
 219
 220 //      #define _x_dprintf(args...)     syslog(LOG_DEBUG, args);
 221 #define _x_dprintf(args...)     do { } while (0);
 222
 223 int check_wanup(void)
 224 {
 225         int up = 0;
 226         int proto;
 227         char buf1[64];
 228         char buf2[64];
 229         const char *name;
 230         int f;
 231         struct ifreq ifr;
 232
 233         proto = get_wan_proto();
 234         if (proto == WP_DISABLED)
 235         {
 236                 if (nvram_match("boardrev", "0x11")) { // Ovislink 1600GL - led "connected" off
 237                         led(LED_WHITE,LED_OFF);
 238                 }
 239                  return 0;
 240         }
 241
 242         if ((proto == WP_PPTP) || (proto == WP_L2TP) || (proto == WP_PPPOE) || (proto == WP_PPP3G)) {
 243                 if (f_read_string("/tmp/ppp/link", buf1, sizeof(buf1)) > 0) {
 244                                 // contains the base name of a file in /var/run/ containing pid of a daemon
 245                                 snprintf(buf2, sizeof(buf2), "/var/run/%s.pid", buf1);
 246                                 if (f_read_string(buf2, buf1, sizeof(buf1)) > 0) {
 247                                         name = psname(atoi(buf1), buf2, sizeof(buf2));
 248                                         if (strcmp(name, "pppd") == 0) up = 1;
 249                                 }
 250                                 else {
 251                                         _dprintf("%s: error reading %s\n", __FUNCTION__, buf2);
 252                                 }
 253                         if (!up) {
 254                                 unlink("/tmp/ppp/link");
 255                                 _x_dprintf("required daemon not found, assuming link is dead\n");
 256                         }
 257                 }
 258                 else {
 259                         _x_dprintf("%s: error reading %s\n", __FUNCTION__, "/tmp/ppp/link");
 260                 }
 261         }
 262         else if (!nvram_match("wan_ipaddr", "0.0.0.0")) {
 263                 up = 1;
 264         }
 265         else {
 266                 _x_dprintf("%s: default !up\n", __FUNCTION__);
 267         }
 268
 269         if ((up) && ((f = socket(AF_INET, SOCK_DGRAM, 0)) >= 0)) {
 270                 strlcpy(ifr.ifr_name, nvram_safe_get("wan_iface"), sizeof(ifr.ifr_name));
 271                 if (ioctl(f, SIOCGIFFLAGS, &ifr) < 0) {
 272                         up = 0;
 273                         _x_dprintf("%s: SIOCGIFFLAGS\n", __FUNCTION__);
 274                 }
 275                 close(f);
 276                 if ((ifr.ifr_flags & IFF_UP) == 0) {
 277                         up = 0;
 278                         _x_dprintf("%s: !IFF_UP\n", __FUNCTION__);
 279                 }
 280         }
 281         if (nvram_match("boardrev", "0x11")) { // Ovislink 1600GL - led "connected" on
 282                 led(LED_WHITE,up);
 283         }
 284
 285         return up;
 286 }
 287
 288
 289 const dns_list_t *get_dns(void)
 290 {
 291         static dns_list_t dns;
 292         char s[512];
 293         int n;
 294         int i, j;
 295         struct in_addr ia;
 296         char d[7][22];
 297         unsigned short port;
 298         char *c;
 299
 300         dns.count = 0;
 301
 302         strlcpy(s, nvram_safe_get("wan_dns"), sizeof(s));
 303         if ((nvram_get_int("dns_addget")) || (s[0] == 0)) {
 304                 n = strlen(s);
 305                 snprintf(s + n, sizeof(s) - n, " %s", nvram_safe_get("wan_get_dns"));
 306         }
 307
 308         n = sscanf(s, "%21s %21s %21s %21s %21s %21s %21s", d[0], d[1], d[2], d[3], d[4], d[5], d[6]);
 309         for (i = 0; i < n; ++i) {
 310                 port = 53;
 311
 312                 if ((c = strchr(d[i], ':')) != NULL) {
 313                         *c++ = 0;
 314                         if (((j = atoi(c)) < 1) || (j > 0xFFFF)) continue;
 315                         port = j;
 316                 }
 317
 318                 if (inet_pton(AF_INET, d[i], &ia) > 0) {
 319                         for (j = dns.count - 1; j >= 0; --j) {
 320                                 if ((dns.dns[j].addr.s_addr == ia.s_addr) && (dns.dns[j].port == port)) break;
 321                         }
 322                         if (j < 0) {
 323                                 dns.dns[dns.count].port = port;
 324                                 dns.dns[dns.count++].addr.s_addr = ia.s_addr;
 325                                 if (dns.count == 6) break;
 326                         }
 327                 }
 328         }
 329
 330         return &dns;
 331 }
 332
 333 // -----------------------------------------------------------------------------
 334
 335 void set_action(int a)
 336 {
 337         int r = 3;
 338         while (f_write("/var/lock/action", &a, sizeof(a), 0, 0) != sizeof(a)) {
 339                 sleep(1);
 340                 if (--r == 0) return;
 341         }
 342         if (a != ACT_IDLE) sleep(2);
 343 }
 344
 345 int check_action(void)
 346 {
 347         int a;
 348         int r = 3;
 349
 350         while (f_read("/var/lock/action", &a, sizeof(a)) != sizeof(a)) {
 351                 sleep(1);
 352                 if (--r == 0) return ACT_UNKNOWN;
 353         }
 354         return a;
 355 }
 356
 357 int wait_action_idle(int n)
 358 {
 359         while (n-- > 0) {
 360                 if (check_action() == ACT_IDLE) return 1;
 361                 sleep(1);
 362         }
 363         return 0;
 364 }
 365
 366 // -----------------------------------------------------------------------------
 367
 368 const wanface_list_t *get_wanfaces(void)
 369 {
 370         static wanface_list_t wanfaces;
 371         char *ip, *iface;
 372         int proto;
 373
 374         wanfaces.count = 0;
 375
 376         switch ((proto = get_wan_proto())) {
 377                 case WP_PPTP:
 378                 case WP_L2TP:
 379                         while (wanfaces.count < 2) {
 380                                 if (wanfaces.count == 0) {
 381                                         ip = nvram_safe_get("ppp_get_ip");
 382                                         iface = nvram_safe_get("wan_iface");
 383                                         if (!(*iface)) iface = "ppp+";
 384                                 }
 385                                 else /* if (wanfaces.count == 1) */ {
 386                                         ip = nvram_safe_get("wan_ipaddr");
 387                                         if ((!(*ip) || strcmp(ip, "0.0.0.0") == 0) && (wanfaces.count > 0))
 388                                                 iface = "";
 389                                         else
 390                                                 iface = nvram_safe_get("wan_ifname");
 391                                 }
 392                                 strlcpy(wanfaces.iface[wanfaces.count].ip, ip, sizeof(wanfaces.iface[0].ip));
 393                                 strlcpy(wanfaces.iface[wanfaces.count].name, iface, IFNAMSIZ);
 394                                 ++wanfaces.count;
 395                         }
 396                         break;
 397                 default:
 398                         ip = (proto == WP_DISABLED) ? "0.0.0.0" : nvram_safe_get("wan_ipaddr");
 399                         if ((proto == WP_PPPOE) || (proto == WP_PPP3G)) {
 400                                 iface = nvram_safe_get("wan_iface");
 401                                 if (!(*iface)) iface = "ppp+";
 402                         }
 403                         else {
 404                                 iface = nvram_safe_get("wan_ifname");
 405                         }
 406                         strlcpy(wanfaces.iface[wanfaces.count].ip, ip, sizeof(wanfaces.iface[0].ip));
 407                         strlcpy(wanfaces.iface[wanfaces.count++].name, iface, IFNAMSIZ);
 408                         break;
 409         }
 410
 411         return &wanfaces;
 412 }
 413
 414 const char *get_wanface(void)
 415 {
 416         return (*get_wanfaces()).iface[0].name;
 417 }
 418
 419 #ifdef TCONFIG_IPV6
 420 const char *get_wan6face(void)
 421 {
 422         switch (get_ipv6_service()) {
 423         case IPV6_NATIVE:
 424         case IPV6_NATIVE_DHCP:
 425                 return get_wanface();
 426         case IPV6_ANYCAST_6TO4:
 427                 return "v6to4";
 428         case IPV6_6IN4:
 429                 return "v6in4";
 430         }
 431         return nvram_safe_get("ipv6_ifname");
 432 }
 433 #endif
 434
 435 const char *get_wanip(void)
 436 {
 437         if (!check_wanup()) return "0.0.0.0";
 438
 439         return (*get_wanfaces()).iface[0].ip;
 440 }
 441
 442 const char *getifaddr(char *ifname, int family, int linklocal)
 443 {
 444         static char buf[INET6_ADDRSTRLEN];
 445         void *addr = NULL;
 446         struct ifaddrs *ifap, *ifa;
 447
 448         if (getifaddrs(&ifap) != 0) {
 449                 _dprintf("getifaddrs failed: %s\n", strerror(errno));
 450                 return NULL;
 451         }
 452
 453         for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
 454                 if ((ifa->ifa_addr == NULL) ||
 455                     (strncmp(ifa->ifa_name, ifname, IFNAMSIZ) != 0) ||
 456                     (ifa->ifa_addr->sa_family != family))
 457                         continue;
 458
 459 #ifdef TCONFIG_IPV6
 460                 if (ifa->ifa_addr->sa_family == AF_INET6) {
 461                         struct sockaddr_in6 *s6 = (struct sockaddr_in6 *)(ifa->ifa_addr);
 462                         if (IN6_IS_ADDR_LINKLOCAL(&s6->sin6_addr) ^ linklocal)
 463                                 continue;
 464                         addr = (void *)&(s6->sin6_addr);
 465                 }
 466                 else
 467 #endif
 468                 {
 469                         struct sockaddr_in *s = (struct sockaddr_in *)(ifa->ifa_addr);
 470                         addr = (void *)&(s->sin_addr);
 471                 }
 472
 473                 if ((addr) && inet_ntop(ifa->ifa_addr->sa_family, addr, buf, sizeof(buf)) != NULL) {
 474                         freeifaddrs(ifap);
 475                         return buf;
 476                 }
 477         }
 478
 479         freeifaddrs(ifap);
 480         return NULL;
 481 }
 482
 483 // -----------------------------------------------------------------------------
 484
 485 long get_uptime(void)
 486 {
 487         struct sysinfo si;
 488         sysinfo(&si);
 489         return si.uptime;
 490 }
 491
 492 char *wl_nvname(const char *nv, int unit, int subunit)
 493 {
 494         static char tmp[128];
 495         char prefix[] = "wlXXXXXXXXXX_";
 496
 497         if (unit < 0)
 498                 strcpy(prefix, "wl_");
 499         else if (subunit > 0)
 500                 snprintf(prefix, sizeof(prefix), "wl%d.%d_", unit, subunit);
 501         else
 502                 snprintf(prefix, sizeof(prefix), "wl%d_", unit);
 503         return strcat_r(prefix, nv, tmp);
 504 }
 505
 506 int get_radio(int unit)
 507 {
 508         uint32 n;
 509
 510         return (wl_ioctl(nvram_safe_get(wl_nvname("ifname", unit, 0)), WLC_GET_RADIO, &n, sizeof(n)) == 0) &&
 511                 ((n & WL_RADIO_SW_DISABLE)  == 0);
 512 }
 513
 514 void set_radio(int on, int unit)
 515 {
 516         uint32 n;
 517
 518 #ifndef WL_BSS_INFO_VERSION
 519 #error WL_BSS_INFO_VERSION
 520 #endif
 521
 522 #if WL_BSS_INFO_VERSION >= 108
 523         n = on ? (WL_RADIO_SW_DISABLE << 16) : ((WL_RADIO_SW_DISABLE << 16) | 1);
 524         wl_ioctl(nvram_safe_get(wl_nvname("ifname", unit, 0)), WLC_SET_RADIO, &n, sizeof(n));
 525         if (!on) {
 526                 led(LED_WLAN, 0);
 527                 led(LED_DIAG, 0);
 528         }
 529 #else
 530         n = on ? 0 : WL_RADIO_SW_DISABLE;
 531         wl_ioctl(nvram_safe_get(wl_nvname("ifname", unit, 0)), WLC_SET_RADIO, &n, sizeof(n));
 532         if (!on) {
 533                 led(LED_DIAG, 0);
 534         }
 535 #endif
 536 }
 537
 538 // -----------------------------------------------------------------------------
 539
 540 int mtd_getinfo(const char *mtdname, int *part, int *size)
 541 {
 542         FILE *f;
 543         char s[256];
 544         char t[256];
 545         int r;
 546
 547         r = 0;
 548         if ((strlen(mtdname) < 128) && (strcmp(mtdname, "pmon") != 0)) {
 549                 sprintf(t, "\"%s\"", mtdname);
 550                 if ((f = fopen("/proc/mtd", "r")) != NULL) {
 551                         while (fgets(s, sizeof(s), f) != NULL) {
 552                                 if ((sscanf(s, "mtd%d: %x", part, size) == 2) && (strstr(s, t) != NULL)) {
 553                                         // don't accidentally mess with bl (0)
 554                                         if (*part > 0) r = 1;
 555                                         break;
 556                                 }
 557                         }
 558                         fclose(f);
 559                 }
 560         }
 561         if (!r) {
 562                 *size = 0;
 563                 *part = -1;
 564         }
 565         return r;
 566 }
 567
 568 // -----------------------------------------------------------------------------
 569
 570 int nvram_get_int(const char *key)
 571 {
 572         return atoi(nvram_safe_get(key));
 573 }
 574
 575 /*
 576 long nvram_xget_long(const char *name, long min, long max, long def)
 577 {
 578         const char *p;
 579         char *e;
 580         long n;
 581
 582         p = nvram_get(name);
 583         if ((p != NULL) && (*p != 0)) {
 584                 n = strtol(p, &e, 0);
 585                 if ((e != p) && ((*e == 0) || (*e == ' ')) && (n > min) && (n < max)) {
 586                         return n;
 587                 }
 588         }
 589         return def;
 590 }
 591 */
 592
 593 int nvram_get_file(const char *key, const char *fname, int max)
 594 {
 595         int n;
 596         char *p;
 597         char *b;
 598         int r;
 599
 600         r = 0;
 601         p = nvram_safe_get(key);
 602         n = strlen(p);
 603         if (n <= max) {
 604                 if ((b = malloc(base64_decoded_len(n) + 128)) != NULL) {
 605                         n = base64_decode(p, b, n);
 606                         if (n > 0) r = (f_write(fname, b, n, 0, 0644) == n);
 607                         free(b);
 608                 }
 609         }
 610         return r;
 611 /*
 612         char b[2048];
 613         int n;
 614         char *p;
 615
 616         p = nvram_safe_get(key);
 617         n = strlen(p);
 618         if (n <= max) {
 619                 n = base64_decode(p, b, n);
 620                 if (n > 0) return (f_write(fname, b, n, 0, 0700) == n);
 621         }
 622         return 0;
 623 */
 624 }
 625
 626 int nvram_set_file(const char *key, const char *fname, int max)
 627 {
 628         char *in;
 629         char *out;
 630         long len;
 631         int n;
 632         int r;
 633
 634         if ((len = f_size(fname)) > max) return 0;
 635         max = (int)len;
 636         r = 0;
 637         if (f_read_alloc(fname, &in, max) == max) {
 638                 if ((out = malloc(base64_encoded_len(max) + 128)) != NULL) {
 639                         n = base64_encode(in, out, max);
 640                         out[n] = 0;
 641                         nvram_set(key, out);
 642                         free(out);
 643                         r = 1;
 644                 }
 645                 free(in);
 646         }
 647         return r;
 648 /*
 649         char a[2048];
 650         char b[4096];
 651         int n;
 652
 653         if (((n = f_read(fname, &a, sizeof(a))) > 0) && (n <= max)) {
 654                 n = base64_encode(a, b, n);
 655                 b[n] = 0;
 656                 nvram_set(key, b);
 657                 return 1;
 658         }
 659         return 0;
 660 */
 661 }
 662
 663 int nvram_contains_word(const char *key, const char *word)
 664 {
 665         return (find_word(nvram_safe_get(key), word) != NULL);
 666 }
 667
 668 int nvram_is_empty(const char *key)
 669 {
 670         char *p;
 671         return (((p = nvram_get(key)) == NULL) || (*p == 0));
 672 }
 673
 674 void nvram_commit_x(void)
 675 {
 676         if (!nvram_get_int("debug_nocommit")) nvram_commit();
 677 }
 678
 679 int connect_timeout(int fd, const struct sockaddr *addr, socklen_t len, int timeout)
 680 {
 681         fd_set fds;
 682         struct timeval tv;
 683         int flags;
 684         int n;
 685         int r;
 686
 687         if (((flags = fcntl(fd, F_GETFL, 0)) < 0) ||
 688                 (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0)) {
 689                 _dprintf("%s: error in F_*ETFL %d\n", __FUNCTION__, fd);
 690                 return -1;
 691         }
 692
 693         if (connect(fd, addr, len) < 0) {
 694 //              _dprintf("%s: connect %d = <0\n", __FUNCTION__, fd);
 695
 696                 if (errno != EINPROGRESS) {
 697                         _dprintf("%s: error in connect %d errno=%d\n", __FUNCTION__, fd, errno);
 698                         return -1;
 699                 }
 700
 701                 while (1) {
 702                         tv.tv_sec = timeout;
 703                         tv.tv_usec = 0;
 704                         FD_ZERO(&fds);
 705                         FD_SET(fd, &fds);
 706                         r = select(fd + 1, NULL, &fds, NULL, &tv);
 707                         if (r == 0) {
 708                                 _dprintf("%s: timeout in select %d\n", __FUNCTION__, fd);
 709                                 return -1;
 710                         }
 711                         else if (r < 0) {
 712                                 if (errno != EINTR) {
 713                                         _dprintf("%s: error in select %d\n", __FUNCTION__, fd);
 714                                         return -1;
 715                                 }
 716                                 // loop
 717                         }
 718                         else {
 719                                 r = 0;
 720                                 n = sizeof(r);
 721                                 if ((getsockopt(fd, SOL_SOCKET, SO_ERROR, &r, &n) < 0) || (r != 0)) {
 722                                         _dprintf("%s: error in SO_ERROR %d\n", __FUNCTION__, fd);
 723                                         return -1;
 724                                 }
 725                                 break;
 726                         }
 727                 }
 728         }
 729
 730         if (fcntl(fd, F_SETFL, flags) < 0) {
 731                 _dprintf("%s: error in F_*ETFL %d\n", __FUNCTION__, fd);
 732                 return -1;
 733         }
 734
 735 //      _dprintf("%s: OK %d\n", __FUNCTION__, fd);
 736         return 0;
 737 }
 738
 739 void chld_reap(int sig)
 740 {
 741         while (waitpid(-1, NULL, WNOHANG) > 0) {}
 742 }
 743
 744 /*
 745 int time_ok(void)
 746 {
 747         return time(0) > Y2K;
 748 }
 749 */