From 3c06f6a0b234822c7b2d6c63ef1aaf554af7167b Mon Sep 17 00:00:00 2001 From: Ben Lindstrom Date: Wed, 31 Jan 2001 21:52:01 +0000 Subject: - (bal) Reorder. Move all bsd-*, fake-*, next-*, and cygwin* stuff to openbsd-compat/. And resolve all ./configure and Makefile.in issues assocated. Logic: * All OpenBSD functions should have the same filename as in the OpenBSD tree * All 'home brew' functions have bsd-* infront of them. * All 'not really implemented' functions have fake-* infront of them. --- openbsd-compat/bsd-cygwin_util.c | 105 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 openbsd-compat/bsd-cygwin_util.c (limited to 'openbsd-compat/bsd-cygwin_util.c') diff --git a/openbsd-compat/bsd-cygwin_util.c b/openbsd-compat/bsd-cygwin_util.c new file mode 100644 index 000000000..b540ebe1a --- /dev/null +++ b/openbsd-compat/bsd-cygwin_util.c @@ -0,0 +1,105 @@ +/* + * + * cygwin_util.c + * + * Author: Corinna Vinschen + * + * Copyright (c) 2000 Corinna Vinschen , Duisburg, Germany + * All rights reserved + * + * Created: Sat Sep 02 12:17:00 2000 cv + * + * This file contains functions for forcing opened file descriptors to + * binary mode on Windows systems. + */ + +#include "config.h" + +#ifdef HAVE_CYGWIN + +#include +#include +#include +#include +#include +#define is_winnt (GetVersion() < 0x80000000) + +int binary_open(const char *filename, int flags, mode_t mode) +{ + return open(filename, flags | O_BINARY, mode); +} + +int binary_pipe(int fd[2]) +{ + int ret = pipe(fd); + + if (!ret) { + setmode (fd[0], O_BINARY); + setmode (fd[1], O_BINARY); + } + return ret; +} + +int check_nt_auth(int pwd_authenticated, uid_t uid) +{ + /* + * The only authentication which is able to change the user + * context on NT systems is the password authentication. So + * we deny all requsts for changing the user context if another + * authentication method is used. + * This may change in future when a special openssh + * subauthentication package is available. + */ + if (is_winnt && !pwd_authenticated && geteuid() != uid) + return 0; + + return 1; +} + +int check_ntsec(const char *filename) +{ + char *cygwin; + int allow_ntea = 0; + int allow_ntsec = 0; + struct statfs fsstat; + + /* Windows 95/98/ME don't support file system security at all. */ + if (!is_winnt) + return 0; + + /* Evaluate current CYGWIN settings. */ + if ((cygwin = getenv("CYGWIN")) != NULL) { + if (strstr(cygwin, "ntea") && !strstr(cygwin, "nontea")) + allow_ntea = 1; + if (strstr(cygwin, "ntsec") && !strstr(cygwin, "nontsec")) + allow_ntsec = 1; + } + + /* + * `ntea' is an emulation of POSIX attributes. It doesn't support + * real file level security as ntsec on NTFS file systems does + * but it supports FAT filesystems. `ntea' is minimum requirement + * for security checks. + */ + if (allow_ntea) + return 1; + + /* + * Retrieve file system flags. In Cygwin, file system flags are + * copied to f_type which has no meaning in Win32 itself. + */ + if (statfs(filename, &fsstat)) + return 1; + + /* + * Only file systems supporting ACLs are able to set permissions. + * `ntsec' is the setting in Cygwin which switches using of NTFS + * ACLs to support POSIX permissions on files. + */ + if (fsstat.f_type & FS_PERSISTENT_ACLS) + return allow_ntsec; + + return 0; +} + +#endif /* HAVE_CYGWIN */ -- cgit v1.2.3