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1 /*
2  * Copyright (c) 2000, 2001, 2011 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 #include "includes.h"
31 
32 #ifdef HAVE_CYGWIN
33 
34 #if defined(open) && open == binary_open
35 # undef open
36 #endif
37 
38 #include <sys/types.h>
39 
40 #include <fcntl.h>
41 #include <stdlib.h>
42 #include <unistd.h>
43 #include <windows.h>
44 
45 #include "xmalloc.h"
46 
47 int
binary_open(const char * filename,int flags,...)48 binary_open(const char *filename, int flags, ...)
49 {
50 	va_list ap;
51 	mode_t mode;
52 
53 	va_start(ap, flags);
54 	mode = va_arg(ap, mode_t);
55 	va_end(ap);
56 	return (open(filename, flags | O_BINARY, mode));
57 }
58 
59 int
check_ntsec(const char * filename)60 check_ntsec(const char *filename)
61 {
62 	return (pathconf(filename, _PC_POSIX_PERMISSIONS));
63 }
64 
65 #define NL(x) x, (sizeof (x) - 1)
66 #define WENV_SIZ (sizeof (wenv_arr) / sizeof (wenv_arr[0]))
67 
68 static struct wenv {
69 	const char *name;
70 	size_t namelen;
71 } wenv_arr[] = {
72 	{ NL("ALLUSERSPROFILE=") },
73 	{ NL("COMPUTERNAME=") },
74 	{ NL("COMSPEC=") },
75 	{ NL("CYGWIN=") },
76 	{ NL("OS=") },
77 	{ NL("PATH=") },
78 	{ NL("PATHEXT=") },
79 	{ NL("SYSTEMDRIVE=") },
80 	{ NL("SYSTEMROOT=") },
81 	{ NL("WINDIR=") }
82 };
83 
84 char **
fetch_windows_environment(void)85 fetch_windows_environment(void)
86 {
87 	char **e, **p;
88 	unsigned int i, idx = 0;
89 
90 	p = xcalloc(WENV_SIZ + 1, sizeof(char *));
91 	for (e = environ; *e != NULL; ++e) {
92 		for (i = 0; i < WENV_SIZ; ++i) {
93 			if (!strncmp(*e, wenv_arr[i].name, wenv_arr[i].namelen))
94 				p[idx++] = *e;
95 		}
96 	}
97 	p[idx] = NULL;
98 	return p;
99 }
100 
101 void
free_windows_environment(char ** p)102 free_windows_environment(char **p)
103 {
104 	xfree(p);
105 }
106 
107 #endif /* HAVE_CYGWIN */
108