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
165
166
167
168
169
170
171
172
173
174
175
|
/* win32-utils.c
* Win32 utility routines
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2006 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "win32-utils.h"
/* Quote the argument element if necessary, so that it will get
* reconstructed correctly in the C runtime startup code. Note that
* the unquoting algorithm in the C runtime is really weird, and
* rather different than what Unix shells do. See stdargv.c in the C
* runtime sources (in the Platform SDK, in src/crt).
*
* Stolen from GLib's protect_argv(), an internal routine that quotes
* string in an argument list so that they arguments will be handled
* correctly in the command-line string passed to CreateProcess()
* if that string is constructed by gluing those strings together.
*/
gchar *
protect_arg (const gchar *argv)
{
gchar *new_arg;
const gchar *p = argv;
gchar *q;
gint len = 0;
gboolean need_dblquotes = FALSE;
while (*p) {
if (*p == ' ' || *p == '\t')
need_dblquotes = TRUE;
else if (*p == '"')
len++;
else if (*p == '\\') {
const gchar *pp = p;
while (*pp && *pp == '\\')
pp++;
if (*pp == '"')
len++;
}
len++;
p++;
}
q = new_arg = g_malloc (len + need_dblquotes*2 + 1);
p = argv;
if (need_dblquotes)
*q++ = '"';
while (*p) {
if (*p == '"')
*q++ = '\\';
else if (*p == '\\') {
const gchar *pp = p;
while (*pp && *pp == '\\')
pp++;
if (*pp == '"')
*q++ = '\\';
}
*q++ = *p;
p++;
}
if (need_dblquotes)
*q++ = '"';
*q++ = '\0';
return new_arg;
}
/*
* Generate a string for a Win32 error.
*/
#define ERRBUF_SIZE 1024
const char *
win32strerror(DWORD error)
{
static char errbuf[ERRBUF_SIZE+1];
size_t errlen;
char *p;
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error, 0, errbuf, ERRBUF_SIZE, NULL);
/*
* "FormatMessage()" "helpfully" sticks CR/LF at the end of the
* message. Get rid of it.
*/
errlen = strlen(errbuf);
if (errlen >= 2) {
errbuf[errlen - 1] = '\0';
errbuf[errlen - 2] = '\0';
}
p = strchr(errbuf, '\0');
g_snprintf(p, (gulong)(sizeof errbuf - (p-errbuf)), " (%lu)", error);
return errbuf;
}
/*
* Generate a string for a Win32 exception code.
*/
const char *
win32strexception(DWORD exception)
{
static char errbuf[ERRBUF_SIZE+1];
static const struct exception_msg {
int code;
char *msg;
} exceptions[] = {
{ EXCEPTION_ACCESS_VIOLATION, "Access violation" },
{ EXCEPTION_ARRAY_BOUNDS_EXCEEDED, "Array bounds exceeded" },
{ EXCEPTION_BREAKPOINT, "Breakpoint" },
{ EXCEPTION_DATATYPE_MISALIGNMENT, "Data type misalignment" },
{ EXCEPTION_FLT_DENORMAL_OPERAND, "Denormal floating-point operand" },
{ EXCEPTION_FLT_DIVIDE_BY_ZERO, "Floating-point divide by zero" },
{ EXCEPTION_FLT_INEXACT_RESULT, "Floating-point inexact result" },
{ EXCEPTION_FLT_INVALID_OPERATION, "Invalid floating-point operation" },
{ EXCEPTION_FLT_OVERFLOW, "Floating-point overflow" },
{ EXCEPTION_FLT_STACK_CHECK, "Floating-point stack check" },
{ EXCEPTION_FLT_UNDERFLOW, "Floating-point underflow" },
{ EXCEPTION_GUARD_PAGE, "Guard page violation" },
{ EXCEPTION_ILLEGAL_INSTRUCTION, "Illegal instruction" },
{ EXCEPTION_IN_PAGE_ERROR, "Page-in error" },
{ EXCEPTION_INT_DIVIDE_BY_ZERO, "Integer divide by zero" },
{ EXCEPTION_INT_OVERFLOW, "Integer overflow" },
{ EXCEPTION_INVALID_DISPOSITION, "Invalid disposition" },
{ EXCEPTION_INVALID_HANDLE, "Invalid handle" },
{ EXCEPTION_NONCONTINUABLE_EXCEPTION, "Non-continuable exception" },
{ EXCEPTION_PRIV_INSTRUCTION, "Privileged instruction" },
{ EXCEPTION_SINGLE_STEP, "Single-step complete" },
{ EXCEPTION_STACK_OVERFLOW, "Stack overflow" },
{ 0, NULL }
};
#define N_EXCEPTIONS (sizeof exceptions / sizeof exceptions[0])
int i;
for (i = 0; i < N_EXCEPTIONS; i++) {
if (exceptions[i].code == exception)
return exceptions[i].msg;
}
g_snprintf(errbuf, (gulong)sizeof errbuf, "Exception 0x%08x", exception);
return errbuf;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
|
