SIOCGIFADDR broken on 9.0-RC1?

看板FB_current作者時間14年前 (2011/11/16 02:01), 編輯推噓0(000)
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Hello list, more insights since my last post. Here is a small code to trigger the bug (end of email). When you run it on 9.0-RC1, it gets an alias address instead of the main inet address: % ./get-ip re0 inet: 192.168.2.10 # Main address being 192.168.1.148 On 8.2-RELEASE, all goes well: % ./get-ip re0 inet: PUBLIC_IP4 Is something broken, or a behaviour has changed since 8.2-RELEASE? Best regards, --8<-- #include <sys/types.h> #include <sys/socket.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <net/if.h> #include <sys/sockio.h> #include <string.h> #include <netinet/in.h> #include <arpa/inet.h> int main(int argc, char *argv[]) { int fd; struct ifreq ifr; const struct sockaddr_in *sa; fd = socket(AF_INET, SOCK_DGRAM, 0); if (fd < 0) { perror("socket"); exit(-1); } memset(&ifr, 0, sizeof(struct ifreq)); strlcpy(ifr.ifr_name, argv[1], sizeof(ifr.ifr_name)); if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { sa = (const struct sockaddr_in *) &ifr.ifr_addr; printf("inet: %s\n", inet_ntoa(sa->sin_addr)); } else { perror("ioctl"); exit(-1); } exit(0); } --8<-- -- ^ ___ ___ http://www.GomoR.org/ <-+ | / __ |__/ Senior Security Engineer | | \__/ | \ ---[ zsh$ alias psed='perl -pe ' ]--- | +--> Net::Frame <=> http://search.cpan.org/~gomor/ <---+ _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
文章代碼(AID): #1EmgZWEB (FB_current)
文章代碼(AID): #1EmgZWEB (FB_current)