Annotation of embedaddon/sudo/plugins/sudoers/interfaces.c, revision 1.1.1.4
1.1 misho 1: /*
1.1.1.4 ! misho 2: * Copyright (c) 2010-2013 Todd C. Miller <Todd.Miller@courtesan.com>
1.1 misho 3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: */
16:
17: #include <config.h>
18:
19: #include <sys/types.h>
20: #include <sys/socket.h>
21: #include <stdio.h>
22: #ifdef STDC_HEADERS
23: # include <stdlib.h>
24: # include <stddef.h>
25: #else
26: # ifdef HAVE_STDLIB_H
27: # include <stdlib.h>
28: # endif
29: #endif /* STDC_HEADERS */
30: #ifdef HAVE_STRING_H
31: # if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
32: # include <memory.h>
33: # endif
34: # include <string.h>
35: #endif /* HAVE_STRING_H */
36: #ifdef HAVE_STRINGS_H
37: # include <strings.h>
38: #endif /* HAVE_STRINGS_H */
39: #ifdef HAVE_UNISTD_H
40: # include <unistd.h>
41: #endif /* HAVE_UNISTD_H */
42: #include <netinet/in.h>
43: #include <arpa/inet.h>
44: #include <netdb.h>
45: #include <errno.h>
46:
47: #include "sudoers.h"
48: #include "interfaces.h"
49:
50: #ifndef INADDR_NONE
51: # define INADDR_NONE ((unsigned int)-1)
52: #endif
53:
1.1.1.4 ! misho 54: static struct interface_list interfaces;
1.1.1.3 misho 55:
1.1 misho 56: /*
57: * Parse a space-delimited list of IP address/netmask pairs and
58: * store in a list of interface structures.
59: */
60: void
61: set_interfaces(const char *ai)
62: {
63: char *addrinfo, *addr, *mask;
64: struct interface *ifp;
1.1.1.2 misho 65: debug_decl(set_interfaces, SUDO_DEBUG_NETIF)
1.1 misho 66:
67: addrinfo = estrdup(ai);
68: for (addr = strtok(addrinfo, " \t"); addr != NULL; addr = strtok(NULL, " \t")) {
69: /* Separate addr and mask. */
70: if ((mask = strchr(addr, '/')) == NULL)
71: continue;
72: *mask++ = '\0';
73:
74: /* Parse addr and store in list. */
1.1.1.2 misho 75: ifp = ecalloc(1, sizeof(*ifp));
1.1 misho 76: if (strchr(addr, ':')) {
77: /* IPv6 */
1.1.1.2 misho 78: #ifdef HAVE_STRUCT_IN6_ADDR
1.1 misho 79: ifp->family = AF_INET6;
80: if (inet_pton(AF_INET6, addr, &ifp->addr.ip6) != 1 ||
81: inet_pton(AF_INET6, mask, &ifp->netmask.ip6) != 1)
82: #endif
83: {
84: efree(ifp);
85: continue;
86: }
87: } else {
88: /* IPv4 */
89: ifp->family = AF_INET;
1.1.1.4 ! misho 90: if (inet_pton(AF_INET, addr, &ifp->addr.ip4) != 1 ||
! 91: inet_pton(AF_INET, mask, &ifp->netmask.ip4) != 1) {
1.1 misho 92: efree(ifp);
93: continue;
94: }
95: }
1.1.1.4 ! misho 96: SLIST_INSERT_HEAD(&interfaces, ifp, entries);
1.1 misho 97: }
98: efree(addrinfo);
1.1.1.2 misho 99: debug_return;
1.1 misho 100: }
101:
1.1.1.4 ! misho 102: struct interface_list *
1.1.1.3 misho 103: get_interfaces(void)
104: {
1.1.1.4 ! misho 105: return &interfaces;
1.1.1.3 misho 106: }
107:
1.1 misho 108: void
109: dump_interfaces(const char *ai)
110: {
111: char *cp, *addrinfo;
1.1.1.2 misho 112: debug_decl(set_interfaces, SUDO_DEBUG_NETIF)
1.1 misho 113:
114: addrinfo = estrdup(ai);
115:
116: sudo_printf(SUDO_CONV_INFO_MSG, _("Local IP address and netmask pairs:\n"));
117: for (cp = strtok(addrinfo, " \t"); cp != NULL; cp = strtok(NULL, " \t"))
118: sudo_printf(SUDO_CONV_INFO_MSG, "\t%s\n", cp);
119:
120: efree(addrinfo);
1.1.1.2 misho 121: debug_return;
1.1 misho 122: }
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