summaryrefslogtreecommitdiff
path: root/legacy/evil/src/lib/evil_util.c
blob: 59c386ac11909ac9d0e112d2d087d50ee2a016b2 (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
159
160
161
162
163
164
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */

#include "Evil.h"
#include "evil_private.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <wchar.h>

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN


wchar_t *
evil_char_to_wchar(const char *text)
{
   wchar_t *wtext;
   int      wsize;

   wsize = MultiByteToWideChar(CP_ACP, 0, text, (int)strlen(text) + 1, NULL, 0);
   if ((wsize == 0) ||
       (wsize > (int)(ULONG_MAX / sizeof(wchar_t))))
     return NULL;

   wtext = malloc(wsize * sizeof(wchar_t));
   if (wtext)
     if (!MultiByteToWideChar(CP_ACP, 0, text, (int)strlen(text) + 1, wtext, wsize))
       return NULL;

   return wtext;
}

char *
evil_wchar_to_char(const wchar_t *text)
{
   char  *atext;
   int    asize;

   asize = WideCharToMultiByte(CP_ACP, 0, text, -1, NULL, 0, NULL, NULL);
   if (asize == 0)
     return NULL;

   atext = (char*)malloc(asize * sizeof(char));
   if (!atext)
     return NULL;

   asize = WideCharToMultiByte(CP_ACP, 0, text, -1, atext, asize, NULL, NULL);
   if (asize == 0)
     return NULL;

   return atext;
}

char *
evil_format_message(long err)
{
   LPTSTR msg;
   char  *str;
   char  *disp;

   if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
                      NULL,
                      err,
                      0, /* Default language */
                      (LPTSTR)&msg,
                      0,
                      NULL))
     {
        char buf[4096];

        snprintf(buf, 4096, "FormatMessage failed with error %ld\n", GetLastError());
        return strdup(buf);
     }

#ifdef UNICODE
   str = evil_wchar_to_char(msg);
#else
   str = msg;
#endif /* UNICODE */

   LocalFree(msg);

   disp = (char *)malloc((strlen(str) + strlen("(00000) ") + 1) * sizeof(char));
   if (!disp)
     return NULL;

   snprintf(disp, strlen(str) + strlen("(00000) ") + 1,
            "(%5ld) %s", err, str);

#ifdef UNICODE
   free(str);
#endif /* UNICODE */

   return disp;
}

void
_evil_error_display(const char *fct, LONG res)
{
   char *error;

   error = evil_format_message(res);
   fprintf(stderr, "[Evil] [%s] ERROR (%ld): %s\n", fct, res, error);
   free(error);
}

char *
evil_last_error_get(void)
{
   DWORD  err;

   err = GetLastError();
   return evil_format_message(err);
}

void
_evil_last_error_display(const char *fct)
{
   char *error;

   error = evil_last_error_get();
   fprintf(stderr, "[Evil] [%s] ERROR: %s\n", fct, error);
   free(error);
}


const char *
evil_tmpdir_get(void)
{
#ifdef _WIN32_WCE
   return "\\temp";
#else
   char *tmpdir;

   tmpdir = getenv("TMP");
   if (!tmpdir) tmpdir = getenv("TEMP");
   if (!tmpdir) tmpdir = getenv("USERPROFILE");
   if (!tmpdir) tmpdir = getenv("WINDIR");
   if (!tmpdir) tmpdir="C:\\";

   return tmpdir;
#endif /* ! _WIN32_WCE */
}

const char *
evil_homedir_get(void)
{
#ifdef _WIN32_WCE
   return "\\my documents";
#else
   char *homedir;

   homedir = getenv("HOME");
   if (!homedir) homedir = getenv("USERPROFILE");
   if (!homedir) homedir = getenv("WINDIR");
   if (!homedir) homedir="C:\\";

   return homedir;
#endif /* ! _WIN32_WCE */
}