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Diffstat (limited to 'contrib/opie/libopie/insecure.c')
| -rw-r--r-- | contrib/opie/libopie/insecure.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/contrib/opie/libopie/insecure.c b/contrib/opie/libopie/insecure.c deleted file mode 100644 index ba2a9dfaeb5a..000000000000 --- a/contrib/opie/libopie/insecure.c +++ /dev/null @@ -1,172 +0,0 @@ -/* insecure.c: The opieinsecure() library function. - -%%% portions-copyright-cmetz-96 -Portions of this software are Copyright 1996-1999 by Craig Metz, All Rights -Reserved. The Inner Net License Version 2 applies to these portions of -the software. -You should have received a copy of the license with this software. If -you didn't get a copy, you may request one from <license@inner.net>. - -Portions of this software are Copyright 1995 by Randall Atkinson and Dan -McDonald, All Rights Reserved. All Rights under this copyright are assigned -to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and -License Agreement applies to this software. - - History: - - Modified by cmetz for OPIE 2.4. Do utmp checks on utmpx systems. - Handle unterminated ut_host. - Modified by cmetz for OPIE 2.31. Fixed a logic bug. Call endut[x]ent(). - Modified by cmetz for OPIE 2.3. Added result caching. Use - __opiegetutmpentry(). Ifdef around ut_host check. Eliminate - unused variable. - Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al. - Allow IP loopback. DISPLAY and ut_host must match exactly, - not just the part before the colon. Added work-around for - Sun CDE dtterm bug. Leave the environment as it was - found. Use uname(). - Created at NRL for OPIE 2.2 from opiesubr.c. Fixed pointer - assignment that should have been a comparison. - -$FreeBSD$ - -*/ -#include "opie_cfg.h" - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> /* ANSI C standard library */ -#include <sys/param.h> -#include <unistd.h> - -#if DOUTMPX -#include <utmpx.h> -#define utmp utmpx -#define endutent endutxent -#else -#include <utmp.h> -#endif /* DOUTMPX */ - -#if HAVE_SYS_UTSNAME_H -#include <sys/utsname.h> -#endif /* HAVE_SYS_UTSNAME_H */ - -#include "opie.h" - -char *remote_terms[] = { "xterm", "xterms", "kterm", NULL }; - -int opieinsecure FUNCTION_NOARGS -{ -#ifndef NO_INSECURE_CHECK - char *display_name; - char *s; - char *term_name; - int insecure = 0; -#if HAVE_UT_HOST || DOUTMPX - struct utmp utmp; -#endif /* HAVE_UT_HOST || DOUTMPX */ - static int result = -1; - - if (result != -1) - return result; - - if (getenv("SSH_CLIENT") != NULL) - return (result = 0); - display_name = (char *) getenv("DISPLAY"); - term_name = (char *) getenv("TERM"); - - if (display_name) { - insecure = 1; - if (s = strchr(display_name, ':')) { - int n = s - display_name; - if (!n) - insecure = 0; - else { - if (!strncmp("unix", display_name, n)) - insecure = 0; - else if (!strncmp("localhost", display_name, n)) - insecure = 0; - else if (!strncmp("loopback", display_name, n)) - insecure = 0; - else if (!strncmp("127.0.0.1", display_name, n)) - insecure = 0; - else { - struct utsname utsname; - - if (!uname(&utsname)) { - if (!strncmp(utsname.nodename, display_name, n)) - insecure = 0; - else { - if (s = strchr(display_name, '.')) { - int n2 = s - display_name; - if (n < n2) - n2 = n; - if (!strncmp(utsname.nodename, display_name, n2)) - insecure = 0; - } /* endif display_name is '.' */ - } /* endif hostname != display_name */ - } /* endif was able to get hostname */ - } /* endif display_name == UNIX */ - } - } - } /* endif display_name == ":" */ - if (insecure) - return (result = 1); - - /* If no DISPLAY variable exists and TERM=xterm, - then we probably have an xterm executing on a remote system - with an rlogin or telnet to our system. If it were a local - xterm, then the DISPLAY environment variable would - have to exist. rja */ - if (!display_name && term_name) { - int i; - for (i = 0; remote_terms[i]; i++) - if (!strcmp(term_name, remote_terms[i])) - return (result = 1); - }; - -#if HAVE_UT_HOST || DOUTMPX - if (isatty(0)) { - memset(&utmp, 0, sizeof(struct utmp)); - { - int i = __opiegetutmpentry(ttyname(0), &utmp); - endutent(); - if (!i && utmp.ut_host[0]) { - char host[sizeof(utmp.ut_host) + 1]; - insecure = 1; - - strncpy(host, utmp.ut_host, sizeof(utmp.ut_host)); - host[sizeof(utmp.ut_host)] = 0; - - if (s = strchr(host, ':')) { - int n = s - host; - if (!n) - insecure = 0; - else - if (display_name) { - if (!strncmp(host, display_name, n)) - insecure = 0; -#if 1 /* def SOLARIS */ - else - if (s = strchr(host, ' ')) { - *s = ':'; - if (s = strchr(s + 1, ' ')) - *s = '.'; - if (!strncmp(host, display_name, n)) - insecure = 0; - } -#endif /* SOLARIS */ - } - } - } - }; - }; -#endif /* HAVE_UT_HOST || DOUTMPX */ - if (insecure) - return (result = 1); - - return (result = 0); -#else /* NO_INSECURE_CHECK */ - return 0; -#endif /* NO_INSECURE_CHECK */ -} |