1 /* 2 * Copyright (c) 2000, 2001, 2011, 2013 Corinna Vinschen <vinschen (at) 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 40 #include "xmalloc.h" 41 42 int 43 binary_open(const char *filename, int flags, ...) 44 { 45 va_list ap; 46 mode_t mode; 47 48 va_start(ap, flags); 49 mode = va_arg(ap, mode_t); 50 va_end(ap); 51 return (open(filename, flags | O_BINARY, mode)); 52 } 53 54 int 55 check_ntsec(const char *filename) 56 { 57 return (pathconf(filename, _PC_POSIX_PERMISSIONS)); 58 } 59 60 const char * 61 cygwin_ssh_privsep_user() 62 { 63 static char cyg_privsep_user[DNLEN + UNLEN + 2]; 64 65 if (!cyg_privsep_user[0]) 66 { 67 #ifdef CW_CYGNAME_FROM_WINNAME 68 if (cygwin_internal (CW_CYGNAME_FROM_WINNAME, "sshd", cyg_privsep_user, 69 sizeof cyg_privsep_user) != 0) 70 #endif 71 strlcpy(cyg_privsep_user, "sshd", sizeof(cyg_privsep_user)); 72 } 73 return cyg_privsep_user; 74 } 75 76 #define NL(x) x, (sizeof (x) - 1) 77 #define WENV_SIZ (sizeof (wenv_arr) / sizeof (wenv_arr[0])) 78 79 static struct wenv { 80 const char *name; 81 size_t namelen; 82 } wenv_arr[] = { 83 { NL("ALLUSERSPROFILE=") }, 84 { NL("COMPUTERNAME=") }, 85 { NL("COMSPEC=") }, 86 { NL("CYGWIN=") }, 87 { NL("OS=") }, 88 { NL("PATH=") }, 89 { NL("PATHEXT=") }, 90 { NL("PROGRAMFILES=") }, 91 { NL("SYSTEMDRIVE=") }, 92 { NL("SYSTEMROOT=") }, 93 { NL("WINDIR=") } 94 }; 95 96 char ** 97 fetch_windows_environment(void) 98 { 99 char **e, **p; 100 unsigned int i, idx = 0; 101 102 p = xcalloc(WENV_SIZ + 1, sizeof(char *)); 103 for (e = environ; *e != NULL; ++e) { 104 for (i = 0; i < WENV_SIZ; ++i) { 105 if (!strncmp(*e, wenv_arr[i].name, wenv_arr[i].namelen)) 106 p[idx++] = *e; 107 } 108 } 109 p[idx] = NULL; 110 return p; 111 } 112 113 void 114 free_windows_environment(char **p) 115 { 116 free(p); 117 } 118 119 #endif /* HAVE_CYGWIN */ 120
