Kill off some unused code that was wasting several k, as noticed by
Denis Vlasenko when building with -ffunction-sections -fdata-sections
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parent
c05dda4b2d
commit
cbd1c85744
@ -319,134 +319,6 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
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}
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}
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int rtnl_listen(struct rtnl_handle *rtnl,
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int (*handler)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
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void *jarg)
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{
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int status;
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struct nlmsghdr *h;
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struct sockaddr_nl nladdr;
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struct iovec iov;
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char buf[8192];
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struct msghdr msg = {
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(void*)&nladdr, sizeof(nladdr),
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&iov, 1,
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NULL, 0,
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0
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};
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memset(&nladdr, 0, sizeof(nladdr));
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nladdr.nl_family = AF_NETLINK;
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nladdr.nl_pid = 0;
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nladdr.nl_groups = 0;
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iov.iov_base = buf;
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while (1) {
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iov.iov_len = sizeof(buf);
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status = recvmsg(rtnl->fd, &msg, 0);
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if (status < 0) {
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if (errno == EINTR)
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continue;
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bb_perror_msg("OVERRUN");
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continue;
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}
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if (status == 0) {
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bb_error_msg("EOF on netlink");
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return -1;
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}
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if (msg.msg_namelen != sizeof(nladdr)) {
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bb_error_msg_and_die("Sender address length == %d", msg.msg_namelen);
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}
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for (h = (struct nlmsghdr*)buf; status >= sizeof(*h); ) {
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int err;
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int len = h->nlmsg_len;
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int l = len - sizeof(*h);
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if (l<0 || len>status) {
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if (msg.msg_flags & MSG_TRUNC) {
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bb_error_msg("Truncated message");
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return -1;
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}
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bb_error_msg_and_die("!!!malformed message: len=%d", len);
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}
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err = handler(&nladdr, h, jarg);
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if (err < 0) {
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return err;
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}
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status -= NLMSG_ALIGN(len);
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h = (struct nlmsghdr*)((char*)h + NLMSG_ALIGN(len));
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}
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if (msg.msg_flags & MSG_TRUNC) {
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bb_error_msg("Message truncated");
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continue;
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}
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if (status) {
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bb_error_msg_and_die("!!!Remnant of size %d", status);
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}
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}
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}
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int rtnl_from_file(FILE *rtnl,
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int (*handler)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
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void *jarg)
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{
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int status;
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struct sockaddr_nl nladdr;
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char buf[8192];
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struct nlmsghdr *h = (void*)buf;
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memset(&nladdr, 0, sizeof(nladdr));
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nladdr.nl_family = AF_NETLINK;
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nladdr.nl_pid = 0;
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nladdr.nl_groups = 0;
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while (1) {
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int err, len, type;
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int l;
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status = fread(&buf, 1, sizeof(*h), rtnl);
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if (status < 0) {
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if (errno == EINTR)
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continue;
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bb_perror_msg("rtnl_from_file: fread");
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return -1;
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}
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if (status == 0)
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return 0;
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len = h->nlmsg_len;
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type= h->nlmsg_type;
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l = len - sizeof(*h);
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if (l<0 || len>sizeof(buf)) {
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bb_error_msg("!!!malformed message: len=%d @%lu",
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len, ftell(rtnl));
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return -1;
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}
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status = fread(NLMSG_DATA(h), 1, NLMSG_ALIGN(l), rtnl);
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if (status < 0) {
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bb_perror_msg("rtnl_from_file: fread");
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return -1;
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}
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if (status < l) {
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bb_error_msg("rtnl-from_file: truncated message");
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return -1;
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}
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err = handler(&nladdr, h, jarg);
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if (err < 0)
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return err;
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}
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}
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int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data)
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{
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int len = RTA_LENGTH(4);
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@ -37,10 +37,6 @@ extern int rta_addattr_l(struct rtattr *rta, int maxlen, int type, void *data, i
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extern int parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len);
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extern int rtnl_listen(struct rtnl_handle *, int (*handler)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
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void *jarg);
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extern int rtnl_from_file(FILE *, int (*handler)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
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void *jarg);
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#endif /* __LIBNETLINK_H__ */
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@ -207,23 +207,6 @@ static void rtnl_rtrealm_initialize(void)
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rtnl_rtrealm_tab, 256);
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}
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const char * rtnl_rtrealm_n2a(int id, char *buf, int len)
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{
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if (id<0 || id>=256) {
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snprintf(buf, len, "%d", id);
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return buf;
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}
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if (!rtnl_rtrealm_tab[id]) {
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if (!rtnl_rtrealm_init)
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rtnl_rtrealm_initialize();
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}
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if (rtnl_rtrealm_tab[id])
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return rtnl_rtrealm_tab[id];
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snprintf(buf, len, "%d", id);
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return buf;
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}
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int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
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{
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static char *cache = NULL;
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@ -258,70 +241,6 @@ int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
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static char * rtnl_rttable_tab[256] = {
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"unspec",
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};
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static int rtnl_rttable_init;
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static void rtnl_rttable_initialize(void)
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{
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rtnl_rttable_init = 1;
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rtnl_rttable_tab[255] = "local";
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rtnl_rttable_tab[254] = "main";
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rtnl_tab_initialize("/etc/iproute2/rt_tables",
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rtnl_rttable_tab, 256);
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}
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const char * rtnl_rttable_n2a(int id, char *buf, int len)
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{
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if (id<0 || id>=256) {
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snprintf(buf, len, "%d", id);
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return buf;
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}
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if (!rtnl_rttable_tab[id]) {
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if (!rtnl_rttable_init)
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rtnl_rttable_initialize();
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}
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if (rtnl_rttable_tab[id])
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return rtnl_rttable_tab[id];
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snprintf(buf, len, "%d", id);
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return buf;
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}
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int rtnl_rttable_a2n(uint32_t *id, char *arg)
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{
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static char *cache = NULL;
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static unsigned long res;
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char *end;
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int i;
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if (cache && strcmp(cache, arg) == 0) {
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*id = res;
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return 0;
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}
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if (!rtnl_rttable_init)
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rtnl_rttable_initialize();
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for (i=0; i<256; i++) {
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if (rtnl_rttable_tab[i] &&
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strcmp(rtnl_rttable_tab[i], arg) == 0) {
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cache = rtnl_rttable_tab[i];
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res = i;
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*id = res;
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return 0;
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}
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}
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i = strtoul(arg, &end, 0);
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if (!end || end == arg || *end || i > 255)
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return -1;
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*id = i;
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return 0;
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}
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static char * rtnl_rtdsfield_tab[256] = {
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"0",
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};
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@ -5,12 +5,9 @@
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extern const char* rtnl_rtprot_n2a(int id, char *buf, int len);
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extern const char* rtnl_rtscope_n2a(int id, char *buf, int len);
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extern const char* rtnl_rttable_n2a(int id, char *buf, int len);
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extern const char* rtnl_rtrealm_n2a(int id, char *buf, int len);
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extern const char* rtnl_dsfield_n2a(int id, char *buf, int len);
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extern int rtnl_rtprot_a2n(uint32_t *id, char *arg);
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extern int rtnl_rtscope_a2n(uint32_t *id, char *arg);
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extern int rtnl_rttable_a2n(uint32_t *id, char *arg);
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extern int rtnl_rtrealm_a2n(uint32_t *id, char *arg);
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extern int rtnl_dsfield_a2n(uint32_t *id, char *arg);
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