2 * options.c - handles option processing for PPP.
4 * Copyright (c) 1989 Carnegie Mellon University.
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by Carnegie Mellon University. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 static char rcsid[] = "$Id: options.c,v 1.17 1995/04/24 05:54:44 paulus Exp $";
34 #include <sys/types.h>
36 #include <netinet/in.h>
39 #include "pathnames.h"
40 #include "patchlevel.h"
48 #include <net/ppp-comp.h>
53 #if defined(ultrix) || defined(NeXT)
54 char *strdup __P((char *));
58 #define GIDSET_TYPE gid_t
62 * Option variables and default values.
64 int debug = 0; /* Debug flag */
65 int kdebugflag = 0; /* Tell kernel to print debug messages */
66 int default_device = 1; /* Using /dev/tty or equivalent */
67 char devnam[MAXPATHLEN] = "/dev/tty"; /* Device name */
68 int crtscts = 0; /* Use hardware flow control */
69 int modem = 1; /* Use modem control lines */
70 int inspeed = 0; /* Input/Output speed requested */
71 u_int32_t netmask = 0; /* IP netmask to set on interface */
72 int lockflag = 0; /* Create lock file to lock the serial dev */
73 int nodetach = 0; /* Don't detach from controlling tty */
74 char *connector = NULL; /* Script to establish physical link */
75 char *disconnector = NULL; /* Script to disestablish physical link */
76 char user[MAXNAMELEN]; /* Username for PAP */
77 char passwd[MAXSECRETLEN]; /* Password for PAP */
78 int auth_required = 0; /* Peer is required to authenticate */
79 int defaultroute = 0; /* assign default route through interface */
80 int proxyarp = 0; /* Set up proxy ARP entry for peer */
81 int persist = 0; /* Reopen link after it goes down */
82 int uselogin = 0; /* Use /etc/passwd for checking PAP */
83 int lcp_echo_interval = 0; /* Interval between LCP echo-requests */
84 int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */
85 char our_name[MAXNAMELEN]; /* Our name for authentication purposes */
86 char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
87 int usehostname = 0; /* Use hostname for our_name */
88 int disable_defaultip = 0; /* Don't use hostname for default IP adrs */
89 char *ipparam = NULL; /* Extra parameter for ip up/down scripts */
92 int idle_time_limit = 0;
93 static int setidle __P((char **));
99 static int setdebug __P((void));
100 static int setkdebug __P((char **));
101 static int setpassive __P((void));
102 static int setsilent __P((void));
103 static int noopt __P((void));
104 static int setnovj __P((void));
105 static int setnovjccomp __P((void));
106 static int setvjslots __P((char **));
107 static int reqpap __P((void));
108 static int nopap __P((void));
109 static int setupapfile __P((char **));
110 static int nochap __P((void));
111 static int reqchap __P((void));
112 static int setspeed __P((char *));
113 static int noaccomp __P((void));
114 static int noasyncmap __P((void));
115 static int noipaddr __P((void));
116 static int nomagicnumber __P((void));
117 static int setasyncmap __P((char **));
118 static int setescape __P((char **));
119 static int setmru __P((char **));
120 static int setmtu __P((char **));
121 static int nomru __P((void));
122 static int nopcomp __P((void));
123 static int setconnector __P((char **));
124 static int setdisconnector __P((char **));
125 static int setdomain __P((char **));
126 static int setnetmask __P((char **));
127 static int setcrtscts __P((void));
128 static int setnocrtscts __P((void));
129 static int setxonxoff __P((void));
130 static int setnodetach __P((void));
131 static int setmodem __P((void));
132 static int setlocal __P((void));
133 static int setlock __P((void));
134 static int setname __P((char **));
135 static int setuser __P((char **));
136 static int setremote __P((char **));
137 static int setauth __P((void));
138 static int readfile __P((char **));
139 static int setdefaultroute __P((void));
140 static int setproxyarp __P((void));
141 static int setpersist __P((void));
142 static int setdologin __P((void));
143 static int setusehostname __P((void));
144 static int setnoipdflt __P((void));
145 static int setlcptimeout __P((char **));
146 static int setlcpterm __P((char **));
147 static int setlcpconf __P((char **));
148 static int setlcpfails __P((char **));
149 static int setipcptimeout __P((char **));
150 static int setipcpterm __P((char **));
151 static int setipcpconf __P((char **));
152 static int setipcpfails __P((char **));
153 static int setpaptimeout __P((char **));
154 static int setpapreqs __P((char **));
155 static int setchaptimeout __P((char **));
156 static int setchapchal __P((char **));
157 static int setchapintv __P((char **));
158 static int setipcpaccl __P((void));
159 static int setipcpaccr __P((void));
160 static int setlcpechointv __P((char **));
161 static int setlcpechofails __P((char **));
162 static int setbsdcomp __P((char **));
163 static int setnobsdcomp __P((void));
164 static int setipparam __P((char **));
166 static int number_option __P((char *, long *, int));
167 static int readable __P((int fd));
179 {"-all", 0, noopt}, /* Don't request/allow any options */
180 {"-ac", 0, noaccomp}, /* Disable Address/Control compress */
181 {"-am", 0, noasyncmap}, /* Disable asyncmap negotiation */
182 {"-as", 1, setasyncmap}, /* set the desired async map */
183 {"-d", 0, setdebug}, /* Increase debugging level */
184 {"-detach", 0, setnodetach}, /* don't fork */
185 {"-ip", 0, noipaddr}, /* Disable IP address negotiation */
186 {"-mn", 0, nomagicnumber}, /* Disable magic number negotiation */
187 {"-mru", 0, nomru}, /* Disable mru negotiation */
188 {"-p", 0, setpassive}, /* Set passive mode */
189 {"-pc", 0, nopcomp}, /* Disable protocol field compress */
190 {"+ua", 1, setupapfile}, /* Get PAP user and password from file */
191 {"+pap", 0, reqpap}, /* Require PAP auth from peer */
192 {"-pap", 0, nopap}, /* Don't allow UPAP authentication with peer */
193 {"+chap", 0, reqchap}, /* Require CHAP authentication from peer */
194 {"-chap", 0, nochap}, /* Don't allow CHAP authentication with peer */
195 {"-vj", 0, setnovj}, /* disable VJ compression */
196 {"-vjccomp", 0, setnovjccomp}, /* disable VJ connection-ID compression */
197 {"vj-max-slots", 1, setvjslots}, /* Set maximum VJ header slots */
198 {"asyncmap", 1, setasyncmap}, /* set the desired async map */
199 {"escape", 1, setescape}, /* set chars to escape on transmission */
200 {"connect", 1, setconnector}, /* A program to set up a connection */
201 {"disconnect", 1, setdisconnector}, /* program to disconnect serial dev. */
202 {"crtscts", 0, setcrtscts}, /* set h/w flow control */
203 {"-crtscts", 0, setnocrtscts}, /* clear h/w flow control */
204 {"xonxoff", 0, setxonxoff}, /* set s/w flow control */
205 {"debug", 0, setdebug}, /* Increase debugging level */
206 {"kdebug", 1, setkdebug}, /* Enable kernel-level debugging */
207 {"domain", 1, setdomain}, /* Add given domain name to hostname*/
208 {"mru", 1, setmru}, /* Set MRU value for negotiation */
209 {"mtu", 1, setmtu}, /* Set our MTU */
210 {"netmask", 1, setnetmask}, /* set netmask */
211 {"passive", 0, setpassive}, /* Set passive mode */
212 {"silent", 0, setsilent}, /* Set silent mode */
213 {"modem", 0, setmodem}, /* Use modem control lines */
214 {"local", 0, setlocal}, /* Don't use modem control lines */
215 {"lock", 0, setlock}, /* Lock serial device (with lock file) */
216 {"name", 1, setname}, /* Set local name for authentication */
217 {"user", 1, setuser}, /* Set username for PAP auth with peer */
218 {"usehostname", 0, setusehostname}, /* Must use hostname for auth. */
219 {"remotename", 1, setremote}, /* Set remote name for authentication */
220 {"auth", 0, setauth}, /* Require authentication from peer */
221 {"file", 1, readfile}, /* Take options from a file */
222 {"defaultroute", 0, setdefaultroute}, /* Add default route */
223 {"proxyarp", 0, setproxyarp}, /* Add proxy ARP entry */
224 {"persist", 0, setpersist}, /* Keep on reopening connection after close */
225 {"login", 0, setdologin}, /* Use system password database for UPAP */
226 {"noipdefault", 0, setnoipdflt}, /* Don't use name for default IP adrs */
227 {"lcp-echo-failure", 1, setlcpechofails}, /* consecutive echo failures */
228 {"lcp-echo-interval", 1, setlcpechointv}, /* time for lcp echo events */
229 {"lcp-restart", 1, setlcptimeout}, /* Set timeout for LCP */
230 {"lcp-max-terminate", 1, setlcpterm}, /* Set max #xmits for term-reqs */
231 {"lcp-max-configure", 1, setlcpconf}, /* Set max #xmits for conf-reqs */
232 {"lcp-max-failure", 1, setlcpfails}, /* Set max #conf-naks for LCP */
233 {"ipcp-restart", 1, setipcptimeout}, /* Set timeout for IPCP */
234 {"ipcp-max-terminate", 1, setipcpterm}, /* Set max #xmits for term-reqs */
235 {"ipcp-max-configure", 1, setipcpconf}, /* Set max #xmits for conf-reqs */
236 {"ipcp-max-failure", 1, setipcpfails}, /* Set max #conf-naks for IPCP */
237 {"pap-restart", 1, setpaptimeout}, /* Set timeout for UPAP */
238 {"pap-max-authreq", 1, setpapreqs}, /* Set max #xmits for auth-reqs */
239 {"chap-restart", 1, setchaptimeout}, /* Set timeout for CHAP */
240 {"chap-max-challenge", 1, setchapchal}, /* Set max #xmits for challenge */
241 {"chap-interval", 1, setchapintv}, /* Set interval for rechallenge */
242 {"ipcp-accept-local", 0, setipcpaccl}, /* Accept peer's address for us */
243 {"ipcp-accept-remote", 0, setipcpaccr}, /* Accept peer's address for it */
244 {"bsdcomp", 1, setbsdcomp}, /* request BSD-Compress */
245 {"-bsdcomp", 0, setnobsdcomp}, /* don't allow BSD-Compress */
246 {"ipparam", 1, setipparam}, /* set ip script parameter */
248 {"idle-disconnect", 1, setidle}, /* seconds for disconnect of idle IP */
254 #ifndef IMPLEMENTATION
255 #define IMPLEMENTATION ""
258 static char *usage_string = "\
259 pppd version %s patch level %d%s\n\
260 Usage: %s [ arguments ], where arguments are:\n\
261 <device> Communicate over the named device\n\
262 <speed> Set the baud rate to <speed>\n\
263 <loc>:<rem> Set the local and/or remote interface IP\n\
264 addresses. Either one may be omitted.\n\
265 asyncmap <n> Set the desired async map to hex <n>\n\
266 auth Require authentication from peer\n\
267 connect <p> Invoke shell command <p> to set up the serial line\n\
268 crtscts Use hardware RTS/CTS flow control\n\
269 defaultroute Add default route through interface\n\
270 file <f> Take options from file <f>\n\
271 modem Use modem control lines\n\
272 mru <n> Set MRU value to <n> for negotiation\n\
273 netmask <n> Set interface netmask to <n>\n\
274 See pppd(8) for more options.\n\
279 * parse_args - parse a string of arguments, from the command
280 * line or from a file.
283 parse_args(argc, argv)
296 * First see if it's a command.
298 for (cmdp = cmds; cmdp->cmd_name; cmdp++)
299 if (!strcmp(arg, cmdp->cmd_name))
302 if (cmdp->cmd_name != NULL) {
303 if (argc < cmdp->num_args) {
304 fprintf(stderr, "Too few parameters for command %s\n", arg);
307 if (!(*cmdp->cmd_func)(argv))
309 argc -= cmdp->num_args;
310 argv += cmdp->num_args;
314 * Maybe a tty name, speed or IP address?
316 if ((ret = setdevname(arg)) == 0
317 && (ret = setspeed(arg)) == 0
318 && (ret = setipaddr(arg)) == 0) {
319 fprintf(stderr, "%s: unrecognized command\n", arg);
323 if (ret < 0) /* error */
331 * usage - print out a message telling how to use the program.
336 fprintf(stderr, usage_string, VERSION, PATCHLEVEL, IMPLEMENTATION,
341 * options_from_file - Read a string of options from a file,
342 * and interpret them.
345 options_from_file(filename, must_exist, check_prot)
354 char args[MAXARGS][MAXWORDLEN];
355 char cmd[MAXWORDLEN];
357 if ((f = fopen(filename, "r")) == NULL) {
358 if (!must_exist && errno == ENOENT)
363 if (check_prot && !readable(fileno(f))) {
364 fprintf(stderr, "%s: access denied\n", filename);
369 while (getword(f, cmd, &newline, filename)) {
371 * First see if it's a command.
373 for (cmdp = cmds; cmdp->cmd_name; cmdp++)
374 if (!strcmp(cmd, cmdp->cmd_name))
377 if (cmdp->cmd_name != NULL) {
378 for (i = 0; i < cmdp->num_args; ++i) {
379 if (!getword(f, args[i], &newline, filename)) {
381 "In file %s: too few parameters for command %s\n",
388 if (!(*cmdp->cmd_func)(argv)) {
395 * Maybe a tty name, speed or IP address?
397 if ((ret = setdevname(cmd)) == 0
398 && (ret = setspeed(cmd)) == 0
399 && (ret = setipaddr(cmd)) == 0) {
400 fprintf(stderr, "In file %s: unrecognized command %s\n",
405 if (ret < 0) /* error */
413 * options_from_user - See if the use has a ~/.ppprc file,
414 * and if so, interpret options from it.
419 char *user, *path, *file;
423 pw = getpwuid(getuid());
424 if (pw == NULL || (user = pw->pw_dir) == NULL || user[0] == 0)
426 file = _PATH_USEROPT;
427 path = malloc(strlen(user) + strlen(file) + 2);
429 novm("init file name");
433 ret = options_from_file(path, 0, 1);
439 * options_for_tty - See if an options file exists for the serial
440 * device, and if so, interpret options from it.
448 dev = strrchr(devnam, '/');
453 if (strcmp(dev, "tty") == 0)
454 return 1; /* don't look for /etc/ppp/options.tty */
455 path = malloc(strlen(_PATH_TTYOPT) + strlen(dev) + 1);
457 novm("tty init file name");
458 strcpy(path, _PATH_TTYOPT);
460 ret = options_from_file(path, 0, 0);
466 * readable - check if a file is readable by the real user.
475 GIDSET_TYPE groups[NGROUPS_MAX];
480 if (fstat(fd, &sbuf) != 0)
482 if (sbuf.st_uid == uid)
483 return sbuf.st_mode & S_IRUSR;
484 if (sbuf.st_gid == getgid())
485 return sbuf.st_mode & S_IRGRP;
486 ngroups = getgroups(NGROUPS_MAX, groups);
487 for (i = 0; i < ngroups; ++i)
488 if (sbuf.st_gid == groups[i])
489 return sbuf.st_mode & S_IRGRP;
490 return sbuf.st_mode & S_IROTH;
494 * Read a word from a file.
495 * Words are delimited by white-space or by quotes (").
496 * Quotes, white-space and \ may be escaped with \.
497 * \<newline> is ignored.
500 getword(f, word, newlinep, filename)
515 * First skip white-space and comments
517 while ((c = getc(f)) != EOF) {
520 * \<newline> is ignored; \ followed by anything else
523 if ((c = getc(f)) == '\n')
530 *newlinep = 1; /* next word starts a line */
532 /* comment - ignore until EOF or \n */
533 while ((c = getc(f)) != EOF && c != '\n')
538 } else if (!isspace(c))
543 * End of file or error - fail
555 * Is this character escaped by \ ?
559 --len; /* ignore \<newline> */
560 else if (c == '"' || isspace(c) || c == '\\')
561 word[len-1] = c; /* put special char in word */
563 if (len < MAXWORDLEN-1)
568 } else if (c == '"') {
570 } else if (!quoted && (isspace(c) || c == '#')) {
574 if (len < MAXWORDLEN-1)
580 if ((c = getc(f)) == EOF)
589 if (len >= MAXWORDLEN) {
590 word[MAXWORDLEN-1] = 0;
591 fprintf(stderr, "%s: warning: word in file %s too long (%.20s...)\n",
592 progname, filename, word);
600 * number_option - parse a numeric parameter for an option
603 number_option(str, valp, base)
610 *valp = strtol(str, &ptr, base);
612 fprintf(stderr, "%s: invalid number: %s\n", progname, str);
620 * int_option - like number_option, but valp is int *,
621 * the base is assumed to be 0, and *valp is not changed
622 * if there is an error.
625 int_option(str, valp)
631 if (!number_option(str, &v, 0))
639 * The following procedures execute commands.
643 * readfile - take commands from a file.
649 return options_from_file(*argv, 1, 1);
653 * setdebug - Set debug (command line argument).
663 * setkdebug - Set kernel debugging level.
669 return int_option(*argv, &kdebugflag);
673 * noopt - Disable all options.
678 BZERO((char *) &lcp_wantoptions[0], sizeof (struct lcp_options));
679 BZERO((char *) &lcp_allowoptions[0], sizeof (struct lcp_options));
680 BZERO((char *) &ipcp_wantoptions[0], sizeof (struct ipcp_options));
681 BZERO((char *) &ipcp_allowoptions[0], sizeof (struct ipcp_options));
686 * noaccomp - Disable Address/Control field compression negotiation.
691 lcp_wantoptions[0].neg_accompression = 0;
692 lcp_allowoptions[0].neg_accompression = 0;
698 * noasyncmap - Disable async map negotiation.
703 lcp_wantoptions[0].neg_asyncmap = 0;
704 lcp_allowoptions[0].neg_asyncmap = 0;
710 * noipaddr - Disable IP address negotiation.
715 ipcp_wantoptions[0].neg_addr = 0;
716 ipcp_allowoptions[0].neg_addr = 0;
722 * nomagicnumber - Disable magic number negotiation.
727 lcp_wantoptions[0].neg_magicnumber = 0;
728 lcp_allowoptions[0].neg_magicnumber = 0;
734 * nomru - Disable mru negotiation.
739 lcp_wantoptions[0].neg_mru = 0;
740 lcp_allowoptions[0].neg_mru = 0;
746 * setmru - Set MRU for negotiation.
754 if (!number_option(*argv, &mru, 0))
756 lcp_wantoptions[0].mru = mru;
757 lcp_wantoptions[0].neg_mru = 1;
763 * setmru - Set the largest MTU we'll use.
771 if (!number_option(*argv, &mtu, 0))
773 if (mtu < MINMRU || mtu > MAXMRU) {
774 fprintf(stderr, "mtu option value of %ld is too %s\n", mtu,
775 (mtu < MINMRU? "small": "large"));
778 lcp_allowoptions[0].mru = mtu;
784 * nopcomp - Disable Protocol field compression negotiation.
789 lcp_wantoptions[0].neg_pcompression = 0;
790 lcp_allowoptions[0].neg_pcompression = 0;
796 * setpassive - Set passive mode (don't give up if we time out sending
797 * LCP configure-requests).
802 lcp_wantoptions[0].passive = 1;
808 * setsilent - Set silent mode (don't start sending LCP configure-requests
809 * until we get one from the peer).
814 lcp_wantoptions[0].silent = 1;
820 * nopap - Disable PAP authentication with peer.
825 lcp_allowoptions[0].neg_upap = 0;
831 * reqpap - Require PAP authentication from peer.
836 lcp_wantoptions[0].neg_upap = 1;
843 * setupapfile - specifies UPAP info for authenticating with peer.
852 lcp_allowoptions[0].neg_upap = 1;
854 /* open user info file */
855 if ((ufile = fopen(*argv, "r")) == NULL) {
856 fprintf(stderr, "unable to open user login data file %s\n", *argv);
859 if (!readable(fileno(ufile))) {
860 fprintf(stderr, "%s: access denied\n", *argv);
863 check_access(ufile, *argv);
866 if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
867 || fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
868 fprintf(stderr, "Unable to read user login data file %s.\n", *argv);
873 /* get rid of newlines */
875 if (l > 0 && user[l-1] == '\n')
878 if (l > 0 && passwd[l-1] == '\n')
886 * nochap - Disable CHAP authentication with peer.
891 lcp_allowoptions[0].neg_chap = 0;
897 * reqchap - Require CHAP authentication from peer.
902 lcp_wantoptions[0].neg_chap = 1;
909 * setnovj - disable vj compression
914 ipcp_wantoptions[0].neg_vj = 0;
915 ipcp_allowoptions[0].neg_vj = 0;
921 * setnovjccomp - disable VJ connection-ID compression
926 ipcp_wantoptions[0].cflag = 0;
927 ipcp_allowoptions[0].cflag = 0;
933 * setvjslots - set maximum number of connection slots for VJ compression
941 if (!int_option(*argv, &value))
943 if (value < 2 || value > 16) {
944 fprintf(stderr, "pppd: vj-max-slots value must be between 2 and 16\n");
947 ipcp_wantoptions [0].maxslotindex =
948 ipcp_allowoptions[0].maxslotindex = value - 1;
954 * setconnector - Set a program to connect to a serial line
960 connector = strdup(*argv);
961 if (connector == NULL)
962 novm("connector string");
968 * setdisconnector - Set a program to disconnect from the serial line
971 setdisconnector(argv)
974 disconnector = strdup(*argv);
975 if (disconnector == NULL)
976 novm("disconnector string");
983 * setdomain - Set domain name to append to hostname
989 strncat(hostname, *argv, MAXNAMELEN - strlen(hostname));
990 hostname[MAXNAMELEN-1] = 0;
996 * setasyncmap - add bits to asyncmap (what we request peer to escape).
1004 if (!number_option(*argv, &asyncmap, 16))
1006 lcp_wantoptions[0].asyncmap |= asyncmap;
1007 lcp_wantoptions[0].neg_asyncmap = 1;
1013 * setescape - add chars to the set we escape on transmission.
1025 n = strtol(p, &endp, 16);
1027 fprintf(stderr, "%s: invalid hex number: %s\n", progname, p);
1031 if (n < 0 || 0x20 <= n && n <= 0x3F || n == 0x5E || n > 0xFF) {
1032 fprintf(stderr, "%s: can't escape character 0x%x\n", progname, n);
1035 xmit_accm[0][n >> 5] |= 1 << (n & 0x1F);
1036 while (*p == ',' || *p == ' ')
1044 * setspeed - Set the speed.
1053 spd = strtol(arg, &ptr, 0);
1054 if (ptr == arg || *ptr != 0 || spd == 0)
1062 * setdevname - Set the device name.
1068 struct stat statbuf;
1069 char *tty, *ttyname();
1070 char dev[MAXPATHLEN];
1072 if (strncmp("/dev/", cp, 5) != 0) {
1073 strcpy(dev, "/dev/");
1074 strncat(dev, cp, MAXPATHLEN - 5);
1075 dev[MAXPATHLEN-1] = 0;
1080 * Check if there is a device by this name.
1082 if (stat(cp, &statbuf) < 0) {
1083 if (errno == ENOENT)
1085 syslog(LOG_ERR, cp);
1089 (void) strncpy(devnam, cp, MAXPATHLEN);
1090 devnam[MAXPATHLEN-1] = 0;
1091 default_device = FALSE;
1098 * setipaddr - Set the IP address
1106 u_int32_t local, remote;
1107 ipcp_options *wo = &ipcp_wantoptions[0];
1110 * IP address pair separated by ":".
1112 if ((colon = strchr(arg, ':')) == NULL)
1116 * If colon first character, then no local addr.
1120 if ((local = inet_addr(arg)) == -1) {
1121 if ((hp = gethostbyname(arg)) == NULL) {
1122 fprintf(stderr, "unknown host: %s\n", arg);
1125 local = *(u_int32_t *)hp->h_addr;
1126 if (our_name[0] == 0) {
1127 strncpy(our_name, arg, MAXNAMELEN);
1128 our_name[MAXNAMELEN-1] = 0;
1132 if (bad_ip_adrs(local)) {
1133 fprintf(stderr, "bad local IP address %s\n", ip_ntoa(local));
1137 wo->ouraddr = local;
1142 * If colon last character, then no remote addr.
1144 if (*++colon != '\0') {
1145 if ((remote = inet_addr(colon)) == -1) {
1146 if ((hp = gethostbyname(colon)) == NULL) {
1147 fprintf(stderr, "unknown host: %s\n", colon);
1150 remote = *(u_int32_t *)hp->h_addr;
1151 if (remote_name[0] == 0) {
1152 strncpy(remote_name, colon, MAXNAMELEN);
1153 remote_name[MAXNAMELEN-1] = 0;
1157 if (bad_ip_adrs(remote)) {
1158 fprintf(stderr, "bad remote IP address %s\n", ip_ntoa(remote));
1162 wo->hisaddr = remote;
1170 * setnoipdflt - disable setipdefault()
1175 disable_defaultip = 1;
1181 * setipcpaccl - accept peer's idea of our address
1186 ipcp_wantoptions[0].accept_local = 1;
1192 * setipcpaccr - accept peer's idea of its address
1197 ipcp_wantoptions[0].accept_remote = 1;
1203 * setipdefault - default our local IP address based on our hostname.
1210 ipcp_options *wo = &ipcp_wantoptions[0];
1213 * If local IP address already given, don't bother.
1215 if (wo->ouraddr != 0 || disable_defaultip)
1219 * Look up our hostname (possibly with domain name appended)
1220 * and take the first IP address as our local IP address.
1221 * If there isn't an IP address for our hostname, too bad.
1223 wo->accept_local = 1; /* don't insist on this default value */
1224 if ((hp = gethostbyname(hostname)) == NULL)
1226 local = *(u_int32_t *)hp->h_addr;
1227 if (local != 0 && !bad_ip_adrs(local))
1228 wo->ouraddr = local;
1233 * setnetmask - set the netmask to be used on the interface.
1241 if ((mask = inet_addr(*argv)) == -1 || (netmask & ~mask) != 0) {
1242 fprintf(stderr, "Invalid netmask %s\n", *argv);
1251 * Return user specified netmask. A value of zero means no netmask has
1323 if (our_name[0] == 0) {
1324 strncpy(our_name, argv[0], MAXNAMELEN);
1325 our_name[MAXNAMELEN-1] = 0;
1334 strncpy(user, argv[0], MAXNAMELEN);
1335 user[MAXNAMELEN-1] = 0;
1343 strncpy(remote_name, argv[0], MAXNAMELEN);
1344 remote_name[MAXNAMELEN-1] = 0;
1358 ipcp_wantoptions[0].default_route = 1;
1365 ipcp_wantoptions[0].proxy_arp = 1;
1384 * Functions to set the echo interval for modem-less monitors
1388 setlcpechointv(argv)
1391 return int_option(*argv, &lcp_echo_interval);
1395 setlcpechofails(argv)
1398 return int_option(*argv, &lcp_echo_fails);
1402 * Functions to set timeouts, max transmits, etc.
1408 return int_option(*argv, &lcp_fsm[0].timeouttime);
1415 return int_option(*argv, &lcp_fsm[0].maxtermtransmits);
1422 return int_option(*argv, &lcp_fsm[0].maxconfreqtransmits);
1429 return int_option(*argv, &lcp_fsm[0].maxnakloops);
1433 setipcptimeout(argv)
1436 return int_option(*argv, &ipcp_fsm[0].timeouttime);
1443 return int_option(*argv, &ipcp_fsm[0].maxtermtransmits);
1450 return int_option(*argv, &ipcp_fsm[0].maxconfreqtransmits);
1457 return int_option(*argv, &lcp_fsm[0].maxnakloops);
1464 return int_option(*argv, &upap[0].us_timeouttime);
1471 return int_option(*argv, &upap[0].us_maxtransmits);
1475 setchaptimeout(argv)
1478 return int_option(*argv, &chap[0].timeouttime);
1485 return int_option(*argv, &chap[0].max_transmits);
1492 return int_option(*argv, &chap[0].chal_interval);
1503 abits = rbits = strtol(str, &endp, 0);
1504 if (endp != str && *endp == ',') {
1506 abits = strtol(str, &endp, 0);
1508 if (*endp != 0 || endp == str) {
1509 fprintf(stderr, "%s: invalid argument format for bsdcomp option\n",
1513 if (rbits != 0 && (rbits < MIN_BSD_BITS || rbits > MAX_BSD_BITS)
1514 || abits != 0 && (abits < MIN_BSD_BITS || abits > MAX_BSD_BITS)) {
1515 fprintf(stderr, "%s: bsdcomp option values must be 0 or %d .. %d\n",
1516 progname, MIN_BSD_BITS, MAX_BSD_BITS);
1520 ccp_wantoptions[0].bsd_compress = 1;
1521 ccp_wantoptions[0].bsd_bits = rbits;
1523 ccp_wantoptions[0].bsd_compress = 0;
1525 ccp_allowoptions[0].bsd_compress = 1;
1526 ccp_allowoptions[0].bsd_bits = abits;
1528 ccp_allowoptions[0].bsd_compress = 0;
1535 ccp_wantoptions[0].bsd_compress = 0;
1536 ccp_allowoptions[0].bsd_compress = 0;
1544 ipparam = strdup(*argv);
1545 if (ipparam == NULL)
1546 novm("ipparam string");
1552 static int setidle (argv)
1555 return int_option(*argv, &idle_time_limit);