Return to interfaces.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sudo / plugins / sudoers

Annotation of embedaddon/sudo/plugins/sudoers/interfaces.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
        !             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 <sys/param.h>
        !            22: #include <stdio.h>
        !            23: #ifdef STDC_HEADERS
        !            24: # include <stdlib.h>
        !            25: # include <stddef.h>
        !            26: #else
        !            27: # ifdef HAVE_STDLIB_H
        !            28: #  include <stdlib.h>
        !            29: # endif
        !            30: #endif /* STDC_HEADERS */
        !            31: #ifdef HAVE_STRING_H
        !            32: # if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
        !            33: #  include <memory.h>
        !            34: # endif
        !            35: # include <string.h>
        !            36: #endif /* HAVE_STRING_H */
        !            37: #ifdef HAVE_STRINGS_H
        !            38: # include <strings.h>
        !            39: #endif /* HAVE_STRINGS_H */
        !            40: #ifdef HAVE_UNISTD_H
        !            41: # include <unistd.h>
        !            42: #endif /* HAVE_UNISTD_H */
        !            43: #include <netinet/in.h>  
        !            44: #include <arpa/inet.h>
        !            45: #include <netdb.h>
        !            46: #include <errno.h>
        !            47: 
        !            48: #include "sudoers.h"
        !            49: #include "interfaces.h"
        !            50: 
        !            51: #ifndef INADDR_NONE
        !            52: # define INADDR_NONE ((unsigned int)-1)
        !            53: #endif
        !            54: 
        !            55: /*
        !            56:  * Parse a space-delimited list of IP address/netmask pairs and
        !            57:  * store in a list of interface structures.
        !            58:  */
        !            59: void
        !            60: set_interfaces(const char *ai)
        !            61: {
        !            62:     char *addrinfo, *addr, *mask;
        !            63:     struct interface *ifp;
        !            64: 
        !            65:     addrinfo = estrdup(ai);
        !            66:     for (addr = strtok(addrinfo, " \t"); addr != NULL; addr = strtok(NULL, " \t")) {
        !            67:        /* Separate addr and mask. */
        !            68:        if ((mask = strchr(addr, '/')) == NULL)
        !            69:            continue;
        !            70:        *mask++ = '\0';
        !            71: 
        !            72:        /* Parse addr and store in list. */
        !            73:        ifp = emalloc(sizeof(*ifp));
        !            74:        if (strchr(addr, ':')) {
        !            75:            /* IPv6 */
        !            76: #ifdef HAVE_IN6_ADDR
        !            77:            ifp->family = AF_INET6;
        !            78:            if (inet_pton(AF_INET6, addr, &ifp->addr.ip6) != 1 ||
        !            79:                inet_pton(AF_INET6, mask, &ifp->netmask.ip6) != 1)
        !            80: #endif
        !            81:            {
        !            82:                efree(ifp);
        !            83:                continue;
        !            84:            }
        !            85:        } else {
        !            86:            /* IPv4 */
        !            87:            ifp->family = AF_INET;
        !            88:            ifp->addr.ip4.s_addr = inet_addr(addr);
        !            89:            ifp->netmask.ip4.s_addr = inet_addr(mask);
        !            90:            if (ifp->addr.ip4.s_addr == INADDR_NONE ||
        !            91:                ifp->netmask.ip4.s_addr == INADDR_NONE) {
        !            92:                efree(ifp);
        !            93:                continue;
        !            94:            }
        !            95:        }
        !            96:        ifp->next = interfaces;
        !            97:        interfaces = ifp;
        !            98:     }
        !            99:     efree(addrinfo);
        !           100: }
        !           101: 
        !           102: void
        !           103: dump_interfaces(const char *ai)
        !           104: {
        !           105:     char *cp, *addrinfo;
        !           106: 
        !           107:     addrinfo = estrdup(ai);
        !           108: 
        !           109:     sudo_printf(SUDO_CONV_INFO_MSG, _("Local IP address and netmask pairs:\n"));
        !           110:     for (cp = strtok(addrinfo, " \t"); cp != NULL; cp = strtok(NULL, " \t"))
        !           111:        sudo_printf(SUDO_CONV_INFO_MSG, "\t%s\n", cp);
        !           112: 
        !           113:     efree(addrinfo);
        !           114: }