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@@ -55,6 +55,12 @@
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#ifdef HAVE_IFADDRS_H
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#include <ifaddrs.h>
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#endif
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+#ifdef HAVE_SYS_IOCTL_H
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+#include <sys/ioctl.h>
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+#endif
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+#ifdef HAVE_NET_IF_H
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+#include <net/if.h>
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+#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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@@ -1198,6 +1204,43 @@ get_interface_addresses_raw(int severity)
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FreeLibrary(lib);
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tor_free(addresses);
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return result;
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+#elif defined(SIOCGIFCONF) && defined(HAVE_IOCTL)
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+ /* Some older unixy systems make us use ioctl(SIOCGIFCONF) */
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+ struct ifconf ifc;
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+ int fd, i, sz, n;
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+ smartlist_t *result = NULL;
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+ /* This interface, AFAICT, only supports AF_INET addresses */
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+ fd = socket(AF_INET, SOCK_DGRAM, 0);
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+ if (fd < 0) {
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+ log(severity, LD_NET, "socket failed: %s", strerror(errno));
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+ goto done;
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+ }
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+ /* Guess how much space we need. */
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+ ifc.ifc_len = sz = 15*1024;
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+ ifc.ifc_ifcu.ifcu_req = tor_malloc(sz);
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+ if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
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+ log(severity, LD_NET, "ioctl failed: %s", strerror(errno));
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+ close(fd);
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+ goto done;
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+ }
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+ close(fd);
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+ result = smartlist_create();
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+ if (ifc.ifc_len < sz)
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+ sz = ifc.ifc_len;
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+ n = sz / sizeof(struct ifreq);
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+ for (i = 0; i < n ; ++i) {
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+ struct ifreq *r = &ifc.ifc_ifcu.ifcu_req[i];
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+ struct sockaddr *sa = &r->ifr_addr;
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+ tor_addr_t tmp;
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+ if (sa->sa_family != AF_INET && sa->sa_family != AF_INET6)
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+ continue; /* should be impossible */
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+ if (tor_addr_from_sockaddr(&tmp, sa, NULL) < 0)
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+ continue;
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+ smartlist_add(result, tor_memdup(&tmp, sizeof(tmp)));
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+ }
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+ done:
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+ tor_free(ifc.ifc_ifcu.ifcu_req);
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+ return result;
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#else
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(void) severity;
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return NULL;
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