summaryrefslogtreecommitdiffhomepage
path: root/libs/luci-lib-nixio/axTLS/ssl/os_port.c
blob: 6a71000b47397a39241bf1dead0bd561fc08eba2 (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
148
149
150
151
152
153
154
155
156
157
158
/*
 * Copyright (c) 2007, Cameron Rich
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, 
 *   this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation 
 *   and/or other materials provided with the distribution.
 * * Neither the name of the axTLS project nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @file os_port.c
 *
 * OS specific functions.
 */
#include <time.h>
#include <stdlib.h>
#include <errno.h>
#include <stdarg.h>
#include "os_port.h"

#ifdef WIN32
/**
 * gettimeofday() not in Win32 
 */
EXP_FUNC void STDCALL gettimeofday(struct timeval* t, void* timezone)
{       
#if defined(_WIN32_WCE)
    t->tv_sec = time(NULL);
    t->tv_usec = 0;                         /* 1sec precision only */ 
#else
    struct _timeb timebuffer;
    _ftime(&timebuffer);
    t->tv_sec = (long)timebuffer.time;
    t->tv_usec = 1000 * timebuffer.millitm; /* 1ms precision */
#endif
}

/**
 * strcasecmp() not in Win32
 */
EXP_FUNC int STDCALL strcasecmp(const char *s1, const char *s2)
{
    while (tolower(*s1) == tolower(*s2++))
    {
        if (*s1++ == '\0')
        {
            return 0;
        }
    }

    return *(unsigned char *)s1 - *(unsigned char *)(s2 - 1);
}


EXP_FUNC int STDCALL getdomainname(char *buf, int buf_size)
{
    HKEY hKey;
    unsigned long datatype;
    unsigned long bufferlength = buf_size;

    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
            TEXT("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"),
                        0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS)
        return -1;

    RegQueryValueEx(hKey, "Domain", NULL, &datatype, buf, &bufferlength);
    RegCloseKey(hKey);
    return 0; 
}
#endif

#undef malloc
#undef realloc
#undef calloc

static const char * out_of_mem_str = "out of memory";
static const char * file_open_str = "Could not open file \"%s\"";

/* 
 * Some functions that call display some error trace and then call abort().
 * This just makes life much easier on embedded systems, since we're 
 * suffering major trauma...
 */
EXP_FUNC void * STDCALL ax_malloc(size_t s)
{
    void *x;

    if ((x = malloc(s)) == NULL)
        exit_now(out_of_mem_str);

    return x;
}

EXP_FUNC void * STDCALL ax_realloc(void *y, size_t s)
{
    void *x;

    if ((x = realloc(y, s)) == NULL)
        exit_now(out_of_mem_str);

    return x;
}

EXP_FUNC void * STDCALL ax_calloc(size_t n, size_t s)
{
    void *x;

    if ((x = calloc(n, s)) == NULL)
        exit_now(out_of_mem_str);

    return x;
}

EXP_FUNC int STDCALL ax_open(const char *pathname, int flags)
{
    int x;

    if ((x = open(pathname, flags)) < 0)
        exit_now(file_open_str, pathname);

    return x;
}

/**
 * This is a call which will deliberately exit an application, but will
 * display some information before dying.
 */
void exit_now(const char *format, ...)
{
    va_list argp;

    va_start(argp, format);
    vfprintf(stderr, format, argp);
    va_end(argp);
    abort();
}