2 * Copyright (c) 1983, 1993
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31 static const char rcsid[] =
35 #include <sys/types.h>
36 #include <sys/ioctl.h>
37 #include <sys/socket.h>
51 struct if_clonereq ifcr;
56 s = socket(AF_INET, SOCK_DGRAM, 0);
58 err(1, "socket(AF_INET,SOCK_DGRAM)");
60 memset(&ifcr, 0, sizeof(ifcr));
62 if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
63 err(1, "SIOCIFGCLONERS for count");
65 buf = malloc(ifcr.ifcr_total * IFNAMSIZ);
67 err(1, "unable to allocate cloner name buffer");
69 ifcr.ifcr_count = ifcr.ifcr_total;
70 ifcr.ifcr_buffer = buf;
72 if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
73 err(1, "SIOCIFGCLONERS for names");
76 * In case some disappeared in the mean time, clamp it down.
78 if (ifcr.ifcr_count > ifcr.ifcr_total)
79 ifcr.ifcr_count = ifcr.ifcr_total;
81 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) {
96 s = socket(AF_INET, SOCK_DGRAM, 0);
98 err(1, "socket(AF_INET,SOCK_DGRAM)");
100 memset(&ifr, 0, sizeof(ifr));
101 (void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
102 if (ioctl(s, SIOCIFCREATE, &ifr) < 0)
103 err(1, "SIOCIFCREATE");
106 * If we get a different name back then we put in, we probably
107 * want to print it out, but we might change our mind later so
108 * we just signal our intrest and leave the printout for later.
110 if (strcmp(name, ifr.ifr_name) != 0) {
112 strlcpy(name, ifr.ifr_name, sizeof(name));
119 clone_destroy(const char *val, int d, int s, const struct afswtch *rafp)
122 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
123 if (ioctl(s, SIOCIFDESTROY, &ifr) < 0)
124 err(1, "SIOCIFDESTROY");
126 * If we create and destroy an interface in the same command,
127 * there isn't any reason to print it's name.
132 static struct cmd clone_cmds[] = {
133 DEF_CMD("destroy", 0, clone_destroy),
134 DEF_CMD("unplumb", 0, clone_destroy),
138 clone_Copt_cb(const char *optarg __unused)
143 static struct option clone_Copt = { "C", "[-C]", clone_Copt_cb };
145 static __constructor void
148 #define N(a) (sizeof(a) / sizeof(a[0]))
151 for (i = 0; i < N(clone_cmds); i++)
152 cmd_register(&clone_cmds[i]);
153 opt_register(&clone_Copt);