144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
-
+
+
+
+
+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
-
+
|
}
return(0);
}
/* Listen on a particular address/port */
static int filed_listen(const char *address, unsigned int port) {
struct sockaddr_in6 addr;
struct sockaddr_in6 addr_v6;
struct sockaddr_in addr_v4;
struct sockaddr *addr;
socklen_t addr_len;
int pton_ret, bind_ret, listen_ret;
int family;
int fd;
addr.sin6_family = AF_INET6;
addr.sin6_flowinfo = 0;
addr.sin6_scope_id = 0;
addr.sin6_port = htons(port);
pton_ret = inet_pton(AF_INET6, address, addr.sin6_addr.s6_addr);
if (pton_ret != 1) {
return(-1);
}
family = AF_INET6;
pton_ret = inet_pton(family, address, &addr_v6.sin6_addr.s6_addr);
if (pton_ret != 1) {
family = AF_INET;
pton_ret = inet_pton(family, address, &addr_v4.sin_addr.s_addr);
if (pton_ret != 1) {
return(-1);
}
addr_v4.sin_family = family;
addr_v4.sin_port = htons(port);
addr = (struct sockaddr *) &addr_v4;
addr_len = sizeof(addr_v4);
} else {
addr_v6.sin6_family = AF_INET6;
addr_v6.sin6_flowinfo = 0;
addr_v6.sin6_scope_id = 0;
addr_v6.sin6_port = htons(port);
addr = (struct sockaddr *) &addr_v6;
addr_len = sizeof(addr_v6);
}
fd = socket(AF_INET6, SOCK_STREAM, 0);
fd = socket(family, SOCK_STREAM, 0);
if (fd < 0) {
return(fd);
}
bind_ret = bind(fd, (const struct sockaddr *) &addr, sizeof(addr));
bind_ret = bind(fd, addr, addr_len);
if (bind_ret < 0) {
close(fd);
return(-1);
}
listen_ret = listen(fd, 128);
|