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19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
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30 * $DragonFly: src/usr.bin/chkey/chkey.c,v 1.6 2008/11/11 18:06:12 pavalos Exp $
31 * @(#)chkey.c 1.7 91/03/11 Copyr 1986 Sun Micro
34 * Copyright (C) 1986, Sun Microsystems, Inc.
38 * Command to change one's public key in the public key database
40 #include <sys/fcntl.h>
49 #include <rpc/key_prot.h>
51 #include <rpcsvc/yp_prot.h>
52 #include <rpcsvc/ypclnt.h>
53 #include <rpcsvc/yppasswd.h>
61 static struct passwd
*ypgetpwuid(uid_t
);
66 static char PKMAP
[] = "publickey.byname";
68 static char PKFILE
[] = "/etc/publickey";
70 static char ROOTKEY
[] = "/etc/.rootkey";
72 static void usage(void);
73 static int setpublicmap(char *, char *, char *);
76 main(int argc
, char **argv
)
78 char name
[MAXNETNAMELEN
+1];
79 char public[HEXKEYBYTES
+ 1];
80 char secret
[HEXKEYBYTES
+ 1];
81 char crypt1
[HEXKEYBYTES
+ KEYCHECKSUMSIZE
+ 1];
82 char crypt2
[HEXKEYBYTES
+ KEYCHECKSUMSIZE
+ 1];
93 while ((ch
= getopt(argc
, argv
, "f")) != -1)
108 yp_get_default_domain(&domain
);
109 if (yp_master(domain
, PKMAP
, &master
) != 0)
110 errx(1, "can't find master of publickey database");
112 uid
= getuid() /*geteuid()*/;
114 if (host2netname(name
, NULL
, NULL
) == 0)
115 errx(1, "cannot convert hostname to netname");
117 if (user2netname(name
, uid
, NULL
) == 0)
118 errx(1, "cannot convert username to netname");
120 printf("Generating new key for %s.\n", name
);
125 pw
= ypgetpwuid(uid
);
132 "no NIS password entry found: can't change key");
135 "no password entry found: can't change key");
141 errx(1, "no password entry found: can't change key");
144 pass
= getpass("Password:");
147 if (strcmp(crypt(pass
, pw
->pw_passwd
), pw
->pw_passwd
) != 0)
148 errx(1, "invalid password");
151 force
= 1; /* Make this mandatory */
153 genkeys(public, secret
, pass
);
155 memcpy(crypt1
, secret
, HEXKEYBYTES
);
156 memcpy(crypt1
+ HEXKEYBYTES
, secret
, KEYCHECKSUMSIZE
);
157 crypt1
[HEXKEYBYTES
+ KEYCHECKSUMSIZE
] = 0;
158 xencrypt(crypt1
, pass
);
161 memcpy(crypt2
, crypt1
, HEXKEYBYTES
+ KEYCHECKSUMSIZE
+ 1);
162 xdecrypt(crypt2
, getpass("Retype password:"));
163 if (memcmp(crypt2
, crypt2
+ HEXKEYBYTES
, KEYCHECKSUMSIZE
) != 0 ||
164 memcmp(crypt2
, secret
, HEXKEYBYTES
) != 0)
165 errx(1, "password incorrect");
169 printf("Sending key change request to %s...\n", master
);
171 status
= setpublicmap(name
, public, crypt1
);
174 errx(1, "unable to update NIS database (%u): %s",
175 status
, yperr_string(status
));
177 errx(1, "unable to update publickey database");
183 * Root users store their key in /etc/$ROOTKEY so
184 * that they can auto reboot without having to be
185 * around to type a password. Storing this in a file
186 * is rather dubious: it should really be in the EEPROM
187 * so it does not go over the net.
191 fd
= open(ROOTKEY
, O_WRONLY
|O_TRUNC
|O_CREAT
, 0);
197 if (write(fd
, secret
, strlen(secret
)) < 0 ||
198 write(fd
, &newline
, sizeof(newline
)) < 0)
199 warn("%s: write", ROOTKEY
);
203 if (key_setsecret(secret
) < 0)
204 errx(1, "unable to login with new secret key");
213 fprintf(stderr
, "usage: chkey [-f]\n");
220 * Set the entry in the public key file
223 setpublicmap(char *name
, char *public, char *secret
)
227 sprintf(pkent
,"%s:%s", public, secret
);
229 return (yp_update(domain
, PKMAP
, YPOP_STORE
,
230 name
, strlen(name
), pkent
, strlen(pkent
)));
232 return (localupdate(name
, PKFILE
, YPOP_STORE
,
233 strlen(name
), name
, strlen(pkent
), pkent
));
238 static struct passwd
*
239 ypgetpwuid(uid_t uid
)
244 static struct passwd pw
;
247 sprintf(uidstr
, "%d", uid
);
248 if (yp_match(domain
, "passwd.byuid", uidstr
, strlen(uidstr
),
249 &val
, &vallen
) != 0) {
252 p
= strchr(val
, ':');
256 pw
.pw_passwd
= p
+ 1;
257 p
= strchr(pw
.pw_passwd
, ':');
264 #endif /* YPPASSWD */