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
40 #include "xmalloc.h"
41
42 int
binary_open(const char * filename,int flags,...)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
check_ntsec(const char * filename)55 check_ntsec(const char *filename)
56 {
57 return (pathconf(filename, _PC_POSIX_PERMISSIONS));
58 }
59
60 const char *
cygwin_ssh_privsep_user()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 **
fetch_windows_environment(void)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
free_windows_environment(char ** p)114 free_windows_environment(char **p)
115 {
116 free(p);
117 }
118
119 #endif /* HAVE_CYGWIN */
120