1 /* 2 * Copyright (c) 2000, 2001, 2011, 2013 Corinna Vinschen <vinschen@redhat.com> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * Created: Sat Sep 02 12:17:00 2000 cv 25 * 26 * This file contains functions for forcing opened file descriptors to 27 * binary mode on Windows systems. 28 */ 29 30 #define NO_BINARY_OPEN /* Avoid redefining open to binary_open for this file */ 31 #include "includes.h" 32 33 #ifdef HAVE_CYGWIN 34 35 #include <sys/types.h> 36 #include <fcntl.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include <stdarg.h> 40 41 #include "xmalloc.h" 42 43 int 44 binary_open(const char *filename, int flags, ...) 45 { 46 va_list ap; 47 mode_t mode; 48 49 va_start(ap, flags); 50 mode = va_arg(ap, mode_t); 51 va_end(ap); 52 return (open(filename, flags | O_BINARY, mode)); 53 } 54 55 int 56 check_ntsec(const char *filename) 57 { 58 return (pathconf(filename, _PC_POSIX_PERMISSIONS)); 59 } 60 61 const char * 62 cygwin_ssh_privsep_user() 63 { 64 static char cyg_privsep_user[DNLEN + UNLEN + 2]; 65 66 if (!cyg_privsep_user[0]) 67 { 68 #ifdef CW_CYGNAME_FROM_WINNAME 69 if (cygwin_internal (CW_CYGNAME_FROM_WINNAME, "sshd", cyg_privsep_user, 70 sizeof cyg_privsep_user) != 0) 71 #endif 72 strlcpy(cyg_privsep_user, "sshd", sizeof(cyg_privsep_user)); 73 } 74 return cyg_privsep_user; 75 } 76 77 #define NL(x) x, (sizeof (x) - 1) 78 #define WENV_SIZ (sizeof (wenv_arr) / sizeof (wenv_arr[0])) 79 80 static struct wenv { 81 const char *name; 82 size_t namelen; 83 } wenv_arr[] = { 84 { NL("ALLUSERSPROFILE=") }, 85 { NL("COMPUTERNAME=") }, 86 { NL("COMSPEC=") }, 87 { NL("CYGWIN=") }, 88 { NL("OS=") }, 89 { NL("PATH=") }, 90 { NL("PATHEXT=") }, 91 { NL("PROGRAMFILES=") }, 92 { NL("SYSTEMDRIVE=") }, 93 { NL("SYSTEMROOT=") }, 94 { NL("WINDIR=") } 95 }; 96 97 char ** 98 fetch_windows_environment(void) 99 { 100 char **e, **p; 101 unsigned int i, idx = 0; 102 103 p = xcalloc(WENV_SIZ + 1, sizeof(char *)); 104 for (e = environ; *e != NULL; ++e) { 105 for (i = 0; i < WENV_SIZ; ++i) { 106 if (!strncmp(*e, wenv_arr[i].name, wenv_arr[i].namelen)) 107 p[idx++] = *e; 108 } 109 } 110 p[idx] = NULL; 111 return p; 112 } 113 114 void 115 free_windows_environment(char **p) 116 { 117 free(p); 118 } 119 120 #endif /* HAVE_CYGWIN */ 121