diff options
Diffstat (limited to 'winsup/cygwin/lib/iruserok.c')
| -rw-r--r-- | winsup/cygwin/lib/iruserok.c | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/winsup/cygwin/lib/iruserok.c b/winsup/cygwin/lib/iruserok.c deleted file mode 100644 index 5e957184e..000000000 --- a/winsup/cygwin/lib/iruserok.c +++ /dev/null @@ -1,319 +0,0 @@ -/* Based on the rcmd.c.new file distributed with linux libc 5.4.19 - Adapted to inetutils by Bernhard Rosenkraenzer <bero@startrek.in-trier.de> - - Note that a lot in this file is superfluous; hopefully it won't be a - problem for systems that need it for iruserok &c.... */ -/* - * Copyright (c) 1983, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * 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. - */ - -#ifdef __CYGWIN__ -#define HAVE_MALLOC_H -#define HAVE_STDLIB_H -#define HAVE_STRING_H -#define TIME_WITH_SYS_TIME -#define PATH_HEQUIV "/etc/hosts.equiv" - -static int __ivaliduser(); -static int __icheckhost(); - -struct hostent *cygwin_gethostbyname (const char *name); -unsigned long cygwin_inet_addr (const char *cp); - -#define gethostbyname cygwin_gethostbyname -#define inet_addr cygwin_inet_addr -#endif - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif -#include <pwd.h> -#include <sys/file.h> -#include <sys/signal.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/uio.h> -#include <sys/param.h> -#include <sys/socket.h> -#ifdef HAVE_MALLOC_H -#include <malloc.h> -#endif -#if defined(STDC_HEADERS) || defined(HAVE_STDLIB_H) -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -# include <string.h> -#endif -#include <netinet/in.h> -#ifdef HAVE_ARPA_NAMESER_H -# include <arpa/nameser.h> -#endif -#include <netdb.h> -#include <unistd.h> -#include <ctype.h> -#include <stdio.h> -#include <errno.h> -#ifdef TIME_WITH_SYS_TIME -# include <sys/time.h> -# include <time.h> -#else -# ifdef HAVE_SYS_TIME_H -# include <sys/time.h> -# else -# include <time.h> -# endif -#endif -#ifndef __CYGWIN__ -#include <resolv.h> -#endif - -int __check_rhosts_file = 1; -const char *__rcmd_errstr; - -int -ruserok(rhost, superuser, ruser, luser) - const char *rhost; - int superuser; - const char *ruser; - const char *luser; -{ - struct hostent *hp; - u_long addr; - char **ap; - - if ((hp = gethostbyname(rhost)) == NULL) - return (-1); - for (ap = hp->h_addr_list; *ap; ++ap) { - bcopy(*ap, &addr, sizeof(addr)); - if (iruserok(addr, superuser, ruser, luser) == 0) - return (0); - } - return (-1); -} - -/* - * New .rhosts strategy: We are passed an ip address. We spin through - * hosts.equiv and .rhosts looking for a match. When the .rhosts only - * has ip addresses, we don't have to trust a nameserver. When it - * contains hostnames, we spin through the list of addresses the nameserver - * gives us and look for a match. - * - * Returns 0 if ok, -1 if not ok. - */ -int -iruserok(raddr, superuser, ruser, luser) - u_long raddr; - int superuser; - const char *ruser; - const char *luser; -{ - register const char *cp; - struct stat sbuf; - struct passwd *pwd; - FILE *hostf; - uid_t uid; - int first = 1; - char *pbuf; - - first = 1; - hostf = superuser ? NULL : fopen(PATH_HEQUIV, "r"); -again: - if (hostf) { - if (__ivaliduser(hostf, raddr, luser, ruser) == 0) { - (void) fclose(hostf); - return(0); - } - (void) fclose(hostf); - } - if (first == 1 && (__check_rhosts_file || superuser)) { - first = 0; - if ((pwd = getpwnam(luser)) == NULL) - return(-1); - - pbuf = malloc (strlen (pwd->pw_dir) + sizeof "/.rhosts"); - if (! pbuf) - { - errno = ENOMEM; - return -1; - } - strcpy (pbuf, pwd->pw_dir); - strcat (pbuf, "/.rhosts"); - - /* - * Change effective uid while opening .rhosts. If root and - * reading an NFS mounted file system, can't read files that - * are protected read/write owner only. - */ - uid = geteuid(); - (void)seteuid(pwd->pw_uid); - hostf = fopen(pbuf, "r"); - (void)seteuid(uid); - - if (hostf == NULL) - return(-1); - /* - * If not a regular file, or is owned by someone other than - * user or root or if writeable by anyone but the owner, quit. - */ - cp = NULL; - if (lstat(pbuf, &sbuf) < 0) - cp = ".rhosts not regular file"; - else if (!S_ISREG(sbuf.st_mode)) - cp = ".rhosts not regular file"; - else if (fstat(fileno(hostf), &sbuf) < 0) - cp = ".rhosts fstat failed"; - else if (sbuf.st_uid && sbuf.st_uid != pwd->pw_uid) - cp = "bad .rhosts owner"; - else if (sbuf.st_mode & (S_IWGRP|S_IWOTH)) - cp = ".rhosts writeable by other than owner"; - /* If there were any problems, quit. */ - if (cp) { - __rcmd_errstr = (char *) cp; - fclose(hostf); - return(-1); - } - goto again; - } - return (-1); -} - -/* - * XXX - * Don't make static, used by lpd(8). - * - * Returns 0 if ok, -1 if not ok. - */ -#ifdef __CYGWIN__ -static -#endif -int -__ivaliduser(hostf, raddr, luser, ruser) - FILE *hostf; - u_long raddr; - const char *luser; - const char *ruser; -{ - size_t buf_offs = 0; - size_t buf_len = 256; - char *buf = malloc (buf_len); - - if (! buf) - return -1; - - while (fgets(buf + buf_offs, buf_len - buf_offs, hostf)) { - /*int ch;*/ - register char *user, *p; - - if (strchr(buf + buf_offs, '\n') == NULL) { - /* No newline yet, read some more. */ - buf_offs += strlen (buf + buf_offs); - - if (buf_offs >= buf_len - 1) { - /* Make more room in BUF. */ - char *new_buf; - - buf_len += buf_len; - new_buf = realloc (buf, buf_len); - - if (! new_buf) { - free (buf); - return -1; - } - - buf = new_buf; - } - - continue; - } - - buf_offs = 0; /* Start at beginning next time around. */ - - p = buf; - while (*p != '\n' && *p != ' ' && *p != '\t' && *p != '\0') { - /* *p = isupper(*p) ? tolower(*p) : *p; -- Uli */ - *p = tolower(*p); /* works for linux libc */ - p++; - } - if (*p == ' ' || *p == '\t') { - *p++ = '\0'; - while (*p == ' ' || *p == '\t') - p++; - user = p; - while (*p != '\n' && *p != ' ' && - *p != '\t' && *p != '\0') - p++; - } else - user = p; - *p = '\0'; - - if (__icheckhost(raddr, buf) && !strcmp(ruser, *user ? user : luser)) { - free (buf); - return (0); - } - } - - free (buf); - - return (-1); -} - -/* - * Returns "true" if match, 0 if no match. - */ -#ifdef __CYGWIN__ -static -#endif -int -__icheckhost(raddr, lhost) - u_long raddr; - register char *lhost; -{ - register struct hostent *hp; - register u_long laddr; - register char **pp; - - /* Try for raw ip address first. */ - if (isdigit(*lhost) && (long)(laddr = inet_addr(lhost)) != -1) - return (raddr == laddr); - - /* Better be a hostname. */ - if ((hp = gethostbyname(lhost)) == NULL) - return (0); - - /* Spin through ip addresses. */ - for (pp = hp->h_addr_list; *pp; ++pp) - if (!bcmp(&raddr, *pp, sizeof(u_long))) - return (1); - - /* No match. */ - return (0); -} |