William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 1 | #include "util.hpp" |
| 2 | |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 3 | #include <arpa/inet.h> |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 4 | #include <dlfcn.h> |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 5 | #include <ifaddrs.h> |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 6 | #include <linux/netlink.h> |
| 7 | #include <linux/rtnetlink.h> |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 8 | #include <net/ethernet.h> |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 9 | #include <net/if.h> |
| 10 | #include <netinet/in.h> |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 11 | #include <sys/ioctl.h> |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 12 | #include <sys/socket.h> |
| 13 | #include <sys/types.h> |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 14 | #include <unistd.h> |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 15 | |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 16 | #include <cstdarg> |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 17 | #include <cstdio> |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 18 | #include <cstring> |
| 19 | #include <map> |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 20 | #include <queue> |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 21 | #include <stdexcept> |
William A. Kennington III | 12beaad | 2020-06-13 19:30:41 -0700 | [diff] [blame] | 22 | #include <stdplus/raw.hpp> |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 23 | #include <string> |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 24 | #include <string_view> |
| 25 | #include <vector> |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 26 | |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 27 | #define MAX_IFADDRS 5 |
| 28 | |
| 29 | int debugging = false; |
| 30 | |
| 31 | /* Data for mocking getifaddrs */ |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 32 | struct ifaddr_storage |
| 33 | { |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 34 | struct ifaddrs ifaddr; |
| 35 | struct sockaddr_storage addr; |
| 36 | struct sockaddr_storage mask; |
| 37 | struct sockaddr_storage bcast; |
| 38 | } mock_ifaddr_storage[MAX_IFADDRS]; |
| 39 | |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 40 | struct ifaddrs* mock_ifaddrs = nullptr; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 41 | |
| 42 | int ifaddr_count = 0; |
| 43 | |
| 44 | /* Stub library functions */ |
Manojkiran Eda | aa57fa5 | 2020-06-13 14:59:53 +0530 | [diff] [blame] | 45 | void freeifaddrs(ifaddrs* /*ifp*/) |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 46 | { |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 47 | return; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 48 | } |
| 49 | |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 50 | std::map<int, std::queue<std::string>> mock_rtnetlinks; |
| 51 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 52 | struct MockInfo |
| 53 | { |
| 54 | unsigned idx; |
| 55 | unsigned flags; |
| 56 | std::optional<ether_addr> mac; |
| 57 | std::optional<unsigned> mtu; |
| 58 | }; |
| 59 | |
| 60 | std::map<std::string, MockInfo> mock_if; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 61 | std::map<int, std::string> mock_if_indextoname; |
| 62 | |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 63 | void mock_clear() |
| 64 | { |
| 65 | mock_ifaddrs = nullptr; |
| 66 | ifaddr_count = 0; |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 67 | mock_rtnetlinks.clear(); |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 68 | mock_if.clear(); |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 69 | mock_if_indextoname.clear(); |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 70 | } |
| 71 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 72 | void mock_addIF(const std::string& name, unsigned idx, unsigned flags, |
| 73 | std::optional<ether_addr> mac, std::optional<unsigned> mtu) |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 74 | { |
| 75 | if (idx == 0) |
| 76 | { |
| 77 | throw std::invalid_argument("Bad interface index"); |
| 78 | } |
| 79 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 80 | mock_if.emplace( |
| 81 | name, MockInfo{.idx = idx, .flags = flags, .mac = mac, .mtu = mtu}); |
| 82 | mock_if_indextoname.emplace(idx, name); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 83 | } |
| 84 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 85 | void mock_addIP(const char* name, const char* addr, const char* mask) |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 86 | { |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 87 | struct ifaddrs* ifaddr = &mock_ifaddr_storage[ifaddr_count].ifaddr; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 88 | |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 89 | struct sockaddr_in* in = |
| 90 | reinterpret_cast<sockaddr_in*>(&mock_ifaddr_storage[ifaddr_count].addr); |
| 91 | struct sockaddr_in* mask_in = |
| 92 | reinterpret_cast<sockaddr_in*>(&mock_ifaddr_storage[ifaddr_count].mask); |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 93 | |
| 94 | in->sin_family = AF_INET; |
| 95 | in->sin_port = 0; |
| 96 | in->sin_addr.s_addr = inet_addr(addr); |
| 97 | |
| 98 | mask_in->sin_family = AF_INET; |
| 99 | mask_in->sin_port = 0; |
| 100 | mask_in->sin_addr.s_addr = inet_addr(mask); |
| 101 | |
| 102 | ifaddr->ifa_next = nullptr; |
| 103 | ifaddr->ifa_name = const_cast<char*>(name); |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 104 | ifaddr->ifa_flags = 0; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 105 | ifaddr->ifa_addr = reinterpret_cast<struct sockaddr*>(in); |
| 106 | ifaddr->ifa_netmask = reinterpret_cast<struct sockaddr*>(mask_in); |
| 107 | ifaddr->ifa_data = nullptr; |
| 108 | |
| 109 | if (ifaddr_count > 0) |
| 110 | mock_ifaddr_storage[ifaddr_count - 1].ifaddr.ifa_next = ifaddr; |
| 111 | ifaddr_count++; |
| 112 | mock_ifaddrs = &mock_ifaddr_storage[0].ifaddr; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 113 | } |
| 114 | |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 115 | void validateMsgHdr(const struct msghdr* msg) |
| 116 | { |
| 117 | if (msg->msg_namelen != sizeof(sockaddr_nl)) |
| 118 | { |
| 119 | fprintf(stderr, "bad namelen: %u\n", msg->msg_namelen); |
| 120 | abort(); |
| 121 | } |
| 122 | const auto& from = *reinterpret_cast<sockaddr_nl*>(msg->msg_name); |
| 123 | if (from.nl_family != AF_NETLINK) |
| 124 | { |
| 125 | fprintf(stderr, "recvmsg bad family data\n"); |
| 126 | abort(); |
| 127 | } |
| 128 | if (msg->msg_iovlen != 1) |
| 129 | { |
| 130 | fprintf(stderr, "recvmsg unsupported iov configuration\n"); |
| 131 | abort(); |
| 132 | } |
| 133 | } |
| 134 | |
William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 135 | ssize_t sendmsg_link_dump(std::queue<std::string>& msgs, std::string_view in) |
| 136 | { |
| 137 | const ssize_t ret = in.size(); |
William A. Kennington III | 12beaad | 2020-06-13 19:30:41 -0700 | [diff] [blame] | 138 | const auto& hdrin = stdplus::raw::copyFrom<nlmsghdr>(in); |
William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 139 | if (hdrin.nlmsg_type != RTM_GETLINK) |
| 140 | { |
| 141 | return 0; |
| 142 | } |
| 143 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 144 | for (const auto& [name, i] : mock_if) |
William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 145 | { |
| 146 | ifinfomsg info{}; |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 147 | info.ifi_index = i.idx; |
| 148 | info.ifi_flags = i.flags; |
William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 149 | nlmsghdr hdr{}; |
| 150 | hdr.nlmsg_len = NLMSG_LENGTH(sizeof(info)); |
| 151 | hdr.nlmsg_type = RTM_NEWLINK; |
| 152 | hdr.nlmsg_flags = NLM_F_MULTI; |
| 153 | auto& out = msgs.emplace(hdr.nlmsg_len, '\0'); |
| 154 | memcpy(out.data(), &hdr, sizeof(hdr)); |
| 155 | memcpy(NLMSG_DATA(out.data()), &info, sizeof(info)); |
| 156 | } |
| 157 | |
| 158 | nlmsghdr hdr{}; |
| 159 | hdr.nlmsg_len = NLMSG_LENGTH(0); |
| 160 | hdr.nlmsg_type = NLMSG_DONE; |
| 161 | hdr.nlmsg_flags = NLM_F_MULTI; |
| 162 | auto& out = msgs.emplace(hdr.nlmsg_len, '\0'); |
| 163 | memcpy(out.data(), &hdr, sizeof(hdr)); |
| 164 | return ret; |
| 165 | } |
| 166 | |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 167 | ssize_t sendmsg_ack(std::queue<std::string>& msgs, std::string_view in) |
| 168 | { |
| 169 | nlmsgerr ack{}; |
| 170 | nlmsghdr hdr{}; |
| 171 | hdr.nlmsg_len = NLMSG_LENGTH(sizeof(ack)); |
| 172 | hdr.nlmsg_type = NLMSG_ERROR; |
| 173 | auto& out = msgs.emplace(hdr.nlmsg_len, '\0'); |
| 174 | memcpy(out.data(), &hdr, sizeof(hdr)); |
| 175 | memcpy(NLMSG_DATA(out.data()), &ack, sizeof(ack)); |
| 176 | return in.size(); |
| 177 | } |
| 178 | |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 179 | extern "C" { |
| 180 | |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 181 | int getifaddrs(ifaddrs** ifap) |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 182 | { |
| 183 | *ifap = mock_ifaddrs; |
William A. Kennington III | 2e09d27 | 2022-10-14 17:15:00 -0700 | [diff] [blame] | 184 | return 0; |
Ratan Gupta | 8ab1792 | 2017-05-25 13:07:05 +0530 | [diff] [blame] | 185 | } |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 186 | |
| 187 | unsigned if_nametoindex(const char* ifname) |
| 188 | { |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 189 | auto it = mock_if.find(ifname); |
| 190 | if (it == mock_if.end()) |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 191 | { |
| 192 | errno = ENXIO; |
| 193 | return 0; |
| 194 | } |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 195 | return it->second.idx; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | char* if_indextoname(unsigned ifindex, char* ifname) |
| 199 | { |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 200 | auto it = mock_if_indextoname.find(ifindex); |
| 201 | if (it == mock_if_indextoname.end()) |
| 202 | { |
William A. Kennington III | d7946a7 | 2019-04-19 14:24:09 -0700 | [diff] [blame] | 203 | errno = ENXIO; |
| 204 | return NULL; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 205 | } |
| 206 | return std::strcpy(ifname, it->second.c_str()); |
| 207 | } |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 208 | |
| 209 | int ioctl(int fd, unsigned long int request, ...) |
| 210 | { |
| 211 | va_list vl; |
| 212 | va_start(vl, request); |
| 213 | void* data = va_arg(vl, void*); |
| 214 | va_end(vl); |
| 215 | |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 216 | auto req = reinterpret_cast<ifreq*>(data); |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 217 | if (request == SIOCGIFHWADDR) |
| 218 | { |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 219 | auto it = mock_if.find(req->ifr_name); |
| 220 | if (it == mock_if.end()) |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 221 | { |
| 222 | errno = ENXIO; |
| 223 | return -1; |
| 224 | } |
William A. Kennington III | 9ecb90e | 2022-10-14 03:12:43 -0700 | [diff] [blame] | 225 | if (!it->second.mac) |
| 226 | { |
| 227 | errno = EOPNOTSUPP; |
| 228 | return -1; |
| 229 | } |
| 230 | std::memcpy(req->ifr_hwaddr.sa_data, &*it->second.mac, |
| 231 | sizeof(*it->second.mac)); |
| 232 | return 0; |
| 233 | } |
| 234 | else if (request == SIOCGIFFLAGS) |
| 235 | { |
| 236 | auto it = mock_if.find(req->ifr_name); |
| 237 | if (it == mock_if.end()) |
| 238 | { |
| 239 | errno = ENXIO; |
| 240 | return -1; |
| 241 | } |
| 242 | req->ifr_flags = it->second.flags; |
| 243 | return 0; |
| 244 | } |
| 245 | else if (request == SIOCGIFMTU) |
| 246 | { |
| 247 | auto it = mock_if.find(req->ifr_name); |
| 248 | if (it == mock_if.end()) |
| 249 | { |
| 250 | errno = ENXIO; |
| 251 | return -1; |
| 252 | } |
| 253 | if (!it->second.mtu) |
| 254 | { |
| 255 | errno = EOPNOTSUPP; |
| 256 | return -1; |
| 257 | } |
| 258 | req->ifr_mtu = *it->second.mtu; |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 259 | return 0; |
| 260 | } |
| 261 | |
| 262 | static auto real_ioctl = |
| 263 | reinterpret_cast<decltype(&ioctl)>(dlsym(RTLD_NEXT, "ioctl")); |
| 264 | return real_ioctl(fd, request, data); |
| 265 | } |
| 266 | |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 267 | int socket(int domain, int type, int protocol) |
| 268 | { |
| 269 | static auto real_socket = |
| 270 | reinterpret_cast<decltype(&socket)>(dlsym(RTLD_NEXT, "socket")); |
| 271 | int fd = real_socket(domain, type, protocol); |
| 272 | if (domain == AF_NETLINK && !(type & SOCK_RAW)) |
| 273 | { |
| 274 | fprintf(stderr, "Netlink sockets must be RAW\n"); |
| 275 | abort(); |
| 276 | } |
| 277 | if (domain == AF_NETLINK && protocol == NETLINK_ROUTE) |
| 278 | { |
| 279 | mock_rtnetlinks[fd] = {}; |
| 280 | } |
| 281 | return fd; |
| 282 | } |
| 283 | |
| 284 | int close(int fd) |
| 285 | { |
| 286 | auto it = mock_rtnetlinks.find(fd); |
| 287 | if (it != mock_rtnetlinks.end()) |
| 288 | { |
| 289 | mock_rtnetlinks.erase(it); |
| 290 | } |
| 291 | |
| 292 | static auto real_close = |
| 293 | reinterpret_cast<decltype(&close)>(dlsym(RTLD_NEXT, "close")); |
| 294 | return real_close(fd); |
| 295 | } |
| 296 | |
| 297 | ssize_t sendmsg(int sockfd, const struct msghdr* msg, int flags) |
| 298 | { |
| 299 | auto it = mock_rtnetlinks.find(sockfd); |
| 300 | if (it == mock_rtnetlinks.end()) |
| 301 | { |
| 302 | static auto real_sendmsg = |
| 303 | reinterpret_cast<decltype(&sendmsg)>(dlsym(RTLD_NEXT, "sendmsg")); |
| 304 | return real_sendmsg(sockfd, msg, flags); |
| 305 | } |
| 306 | auto& msgs = it->second; |
| 307 | |
| 308 | validateMsgHdr(msg); |
| 309 | if (!msgs.empty()) |
| 310 | { |
| 311 | fprintf(stderr, "Unread netlink responses\n"); |
| 312 | abort(); |
| 313 | } |
| 314 | |
| 315 | ssize_t ret; |
| 316 | std::string_view iov(reinterpret_cast<char*>(msg->msg_iov[0].iov_base), |
| 317 | msg->msg_iov[0].iov_len); |
| 318 | |
William A. Kennington III | 5bb7da9 | 2019-04-22 21:30:23 -0700 | [diff] [blame] | 319 | ret = sendmsg_link_dump(msgs, iov); |
| 320 | if (ret != 0) |
| 321 | { |
| 322 | return ret; |
| 323 | } |
| 324 | |
William A. Kennington III | bc2059f | 2019-04-22 13:31:54 -0700 | [diff] [blame] | 325 | ret = sendmsg_ack(msgs, iov); |
| 326 | if (ret != 0) |
| 327 | { |
| 328 | return ret; |
| 329 | } |
| 330 | |
| 331 | errno = ENOSYS; |
| 332 | return -1; |
| 333 | } |
| 334 | |
| 335 | ssize_t recvmsg(int sockfd, struct msghdr* msg, int flags) |
| 336 | { |
| 337 | auto it = mock_rtnetlinks.find(sockfd); |
| 338 | if (it == mock_rtnetlinks.end()) |
| 339 | { |
| 340 | static auto real_recvmsg = |
| 341 | reinterpret_cast<decltype(&recvmsg)>(dlsym(RTLD_NEXT, "recvmsg")); |
| 342 | return real_recvmsg(sockfd, msg, flags); |
| 343 | } |
| 344 | auto& msgs = it->second; |
| 345 | |
| 346 | validateMsgHdr(msg); |
| 347 | constexpr size_t required_buf_size = 8192; |
| 348 | if (msg->msg_iov[0].iov_len < required_buf_size) |
| 349 | { |
| 350 | fprintf(stderr, "recvmsg iov too short: %zu\n", |
| 351 | msg->msg_iov[0].iov_len); |
| 352 | abort(); |
| 353 | } |
| 354 | if (msgs.empty()) |
| 355 | { |
| 356 | fprintf(stderr, "No pending netlink responses\n"); |
| 357 | abort(); |
| 358 | } |
| 359 | |
| 360 | ssize_t ret = 0; |
| 361 | auto data = reinterpret_cast<char*>(msg->msg_iov[0].iov_base); |
| 362 | while (!msgs.empty()) |
| 363 | { |
| 364 | const auto& msg = msgs.front(); |
| 365 | if (NLMSG_ALIGN(ret) + msg.size() > required_buf_size) |
| 366 | { |
| 367 | break; |
| 368 | } |
| 369 | ret = NLMSG_ALIGN(ret); |
| 370 | memcpy(data + ret, msg.data(), msg.size()); |
| 371 | ret += msg.size(); |
| 372 | msgs.pop(); |
| 373 | } |
| 374 | return ret; |
| 375 | } |
| 376 | |
William A. Kennington III | cb64b99 | 2019-04-21 18:45:07 -0700 | [diff] [blame] | 377 | } // extern "C" |