summaryrefslogtreecommitdiffstats
path: root/rubbos/app/httpd-2.0.64/os/win32/util_win32.c
blob: c6c38404789abb3d20aa6d7ce8016f30bfdd3e05 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "apr_strings.h"
#include "arch/win32/apr_arch_file_io.h"
#include "arch/win32/apr_arch_misc.h"

#include "httpd.h"
#include "http_log.h"

#include <stdarg.h>
#include <time.h>
#include <stdlib.h>


AP_DECLARE(apr_status_t) ap_os_proc_filepath(char **binpath, apr_pool_t *p)
{
    apr_wchar_t wbinpath[APR_PATH_MAX];

#if APR_HAS_UNICODE_FS
    IF_WIN_OS_IS_UNICODE 
    {
        apr_size_t binlen;
        apr_size_t wbinlen;
        apr_status_t rv;
        if (!GetModuleFileNameW(NULL, wbinpath, sizeof(wbinpath) 
                                              / sizeof(apr_wchar_t))) {
            return apr_get_os_error();
        }
        wbinlen = wcslen(wbinpath) + 1;
        binlen = (wbinlen - 1) * 3 + 1;
        *binpath = apr_palloc(p, binlen);
        rv = apr_conv_ucs2_to_utf8(wbinpath, &wbinlen, *binpath, &binlen);
        if (rv != APR_SUCCESS)
            return rv;
        else if (wbinlen)
            return APR_ENAMETOOLONG;
    }
#endif /* APR_HAS_UNICODE_FS */
#if APR_HAS_ANSI_FS
    ELSE_WIN_OS_IS_ANSI
    {
        /* share the same scratch buffer */
        char *pathbuf = (char*) wbinpath;
        if (!GetModuleFileName(NULL, pathbuf, sizeof(wbinpath))) {
            return apr_get_os_error();
        }
        *binpath = apr_pstrdup(p, pathbuf);
    }
#endif
    return APR_SUCCESS;
}


AP_DECLARE(apr_status_t) ap_os_create_privileged_process(
    const request_rec *r,
    apr_proc_t *newproc, const char *progname,
    const char * const *args,
    const char * const *env,
    apr_procattr_t *attr, apr_pool_t *p)
{
    return apr_proc_create(newproc, progname, args, env, attr, p);
}


/* This code is stolen from misc/win32/misc.c and apr_private.h
 * This helper code resolves late bound entry points 
 * missing from one or more releases of the Win32 API...
 * but it sure would be nice if we didn't duplicate this code
 * from the APR ;-)
 */
static const char* const lateDllName[DLL_defined] = {
    "kernel32", "advapi32", "mswsock",  "ws2_32"  };
static HMODULE lateDllHandle[DLL_defined] = {
    NULL,       NULL,       NULL,       NULL      };


FARPROC ap_load_dll_func(ap_dlltoken_e fnLib, char* fnName, int ordinal)
{
    if (!lateDllHandle[fnLib]) { 
        lateDllHandle[fnLib] = LoadLibrary(lateDllName[fnLib]);
        if (!lateDllHandle[fnLib])
            return NULL;
    }
    if (ordinal)
        return GetProcAddress(lateDllHandle[fnLib], (char *) ordinal);
    else
        return GetProcAddress(lateDllHandle[fnLib], fnName);
}


/* To share the semaphores with other processes, we need a NULL ACL
 * Code from MS KB Q106387
 */
PSECURITY_ATTRIBUTES GetNullACL()
{
    PSECURITY_DESCRIPTOR pSD;
    PSECURITY_ATTRIBUTES sa;

    sa  = (PSECURITY_ATTRIBUTES) LocalAlloc(LPTR, sizeof(SECURITY_ATTRIBUTES));
    sa->nLength = sizeof(sizeof(SECURITY_ATTRIBUTES));

    pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR, SECURITY_DESCRIPTOR_MIN_LENGTH);
    sa->lpSecurityDescriptor = pSD;

    if (pSD == NULL || sa == NULL) {
        return NULL;
    }
    apr_set_os_error(0);
    if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)
	|| apr_get_os_error()) {
        LocalFree( pSD );
        LocalFree( sa );
        return NULL;
    }
    if (!SetSecurityDescriptorDacl(pSD, TRUE, (PACL) NULL, FALSE)
	|| apr_get_os_error()) {
        LocalFree( pSD );
        LocalFree( sa );
        return NULL;
    }

    sa->bInheritHandle = FALSE;
    return sa;
}


void CleanNullACL(void *sa) 
{
    if (sa) {
        LocalFree(((PSECURITY_ATTRIBUTES)sa)->lpSecurityDescriptor);
        LocalFree(sa);
    }
}