diff options
Diffstat (limited to 'usr.sbin/amd/amd/info_passwd.c')
| -rw-r--r-- | usr.sbin/amd/amd/info_passwd.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/usr.sbin/amd/amd/info_passwd.c b/usr.sbin/amd/amd/info_passwd.c new file mode 100644 index 0000000..3123e38 --- /dev/null +++ b/usr.sbin/amd/amd/info_passwd.c @@ -0,0 +1,162 @@ +/* + * Copyright (c) 1990 Jan-Simon Pendry + * Copyright (c) 1990 Imperial College of Science, Technology & Medicine + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jan-Simon Pendry at Imperial College, London. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)info_passwd.c 8.1 (Berkeley) 6/6/93 + * + * $Id: info_passwd.c,v 5.2.2.1 1992/02/09 15:08:33 jsp beta $ + * + */ + +/* + * Get info from password "file" + * + * This is experimental and probably doesn't + * do what you expect. + */ + +#include "am.h" + +#ifdef HAS_PASSWD_MAPS +#include <pwd.h> + +#define PASSWD_MAP "/etc/passwd" + +/* + * Nothing to probe - check the map name is PASSWD_MAP. + */ +int passwd_init P((char *map, time_t *tp)); +int passwd_init(map, tp) +char *map; +time_t *tp; +{ + *tp = 0; + return strcmp(map, PASSWD_MAP) == 0 ? 0 : ENOENT; +} + + +/* + * Grab the entry via the getpwname routine + * Modify time is ignored by passwd - XXX + */ +int passwd_search P((mnt_map *m, char *map, char *key, char **pval, time_t *tp)); +int passwd_search(m, map, key, pval, tp) +mnt_map *m; +char *map; +char *key; +char **pval; +time_t *tp; +{ + char *dir = 0; + struct passwd *pw; + if (strcmp(key, "/defaults") == 0) { + *pval = strdup("type:=nfs"); + return 0; + } + + pw = getpwnam(key); + if (pw) { + /* + * We chop the home directory up as follows: + * /anydir/dom1/dom2/dom3/user + * + * and return + * rfs:=/anydir/dom3;rhost:=dom3.dom2.dom1;sublink:=user + * + * This allows cross-domain entries in your passwd file. + * ... but forget about security! + */ + char *user; + char *p, *q; + char val[MAXPATHLEN]; + char rhost[MAXHOSTNAMELEN]; + dir = strdup(pw->pw_dir); + /* + * Find user name. If no / then Invalid... + */ + user = strrchr(dir, '/'); + if (!user) + goto enoent; + *user++ = '\0'; + /* + * Find start of host "path". If no / then Invalid... + */ + p = strchr(dir+1, '/'); + if (!p) + goto enoent; + *p++ = '\0'; + /* + * At this point, p is dom1/dom2/dom3 + * Copy, backwards, into rhost replacing + * / with . + */ + rhost[0] = '\0'; + do { + q = strrchr(p, '/'); + if (q) { + strcat(rhost, q + 1); + strcat(rhost, "."); + *q = '\0'; + } else { + strcat(rhost, p); + } + } while (q); + /* + * Sanity check + */ + if (*rhost == '\0' || *user == '\0' || *dir == '\0') + goto enoent; + /* + * Make up return string + */ + q = strchr(rhost, '.'); + if (q) + *q = '\0'; + sprintf(val, "rfs:=%s/%s;rhost:=%s;sublink:=%s;fs:=${autodir}%s", + dir, rhost, rhost, user, pw->pw_dir); + if (q) + *q = '.'; + *pval = strdup(val); + return 0; + } + +enoent: + if (dir) + free(dir); + + return ENOENT; +} +#endif /* HAS_PASSWD_MAPS */ |
