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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/* smallprint.c: small print routines for WIN32
Copyright 1996, 1998, 2000, 2001 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
int __small_sprintf (char *dst, const char *fmt,...);
int __small_vsprintf (char *dst, const char *fmt, va_list ap);
static char *
rn (char *dst, int base, int dosign, long long val, int len, int pad)
{
/* longest number is ULLONG_MAX, 18446744073709551615, 20 digits */
unsigned uval;
char res[20];
static const char str[16] = "0123456789ABCDEF";
int l = 0;
if (dosign && val < 0)
{
*dst++ = '-';
uval = -val;
}
else if (dosign > 0 && val > 0)
{
*dst++ = '+';
uval = val;
}
else
{
uval = val;
}
do
{
res[l++] = str[uval % base];
uval /= base;
}
while (uval);
while (len -- > l)
*dst++ = pad;
while (l > 0)
{
*dst++ = res[--l];
}
return dst;
}
int
__small_vsprintf (char *dst, const char *fmt, va_list ap)
{
char tmp[MAX_PATH + 1];
char *orig = dst;
const char *s;
while (*fmt)
{
int i, n = 0x7fff;
if (*fmt != '%')
*dst++ = *fmt++;
else
{
int len = 0;
char pad = ' ';
int addsign = -1;
switch (*++fmt)
{
case '+':
addsign = 1;
fmt++;
break;
case '%':
*dst++ = *fmt++;
continue;
}
for (;;)
{
char c = *fmt++;
switch (c)
{
case '0':
if (len == 0)
{
pad = '0';
continue;
}
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
len = len * 10 + (c - '0');
continue;
case 'l':
continue;
case 'c':
{
int c = va_arg (ap,int);
if (c > ' ' && c <= 127)
*dst++ = c;
else
{
*dst++ = '0';
*dst++ = 'x';
dst = rn (dst, 16, 0, c, len, pad);
}
}
break;
case 'E':
strcpy (dst, "Win32 error ");
dst = rn (dst + sizeof ("Win32 error"), 10, 0, GetLastError (), len, pad);
break;
case 'd':
dst = rn (dst, 10, addsign, va_arg (ap, int), len, pad);
break;
case 'D':
dst = rn (dst, 10, addsign, va_arg (ap, long long), len, pad);
break;
case 'u':
dst = rn (dst, 10, 0, va_arg (ap, int), len, pad);
break;
case 'U':
dst = rn (dst, 10, 0, va_arg (ap, long long), len, pad);
break;
case 'o':
dst = rn (dst, 8, 0, va_arg (ap, unsigned), len, pad);
break;
case 'p':
*dst++ = '0';
*dst++ = 'x';
/* fall through */
case 'x':
dst = rn (dst, 16, 0, va_arg (ap, int), len, pad);
break;
case 'X':
dst = rn (dst, 16, 0, va_arg (ap, long long), len, pad);
break;
case 'P':
if (!GetModuleFileName (NULL, tmp, MAX_PATH))
s = "cygwin program";
else
s = tmp;
goto fillin;
case '.':
n = strtol (fmt, (char **)&fmt, 10);
if (*fmt++ != 's')
goto endfor;
case 's':
s = va_arg (ap, char *);
if (s == NULL)
s = "(null)";
fillin:
for (i = 0; *s && i < n; i++)
*dst++ = *s++;
break;
default:
*dst++ = '?';
*dst++ = fmt[-1];
}
endfor:
break;
}
}
}
*dst = 0;
return dst - orig;
}
int
__small_sprintf (char *dst, const char *fmt,...)
{
int r;
va_list ap;
va_start (ap, fmt);
r = __small_vsprintf (dst, fmt, ap);
va_end (ap);
return r;
}
void
small_printf (const char *fmt,...)
{
char buf[16384];
va_list ap;
DWORD done;
int count;
#if 0 /* Turn on to force console errors */
extern SECURITY_ATTRIBUTES sec_none;
HANDLE h = CreateFileA ("CONOUT$", GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_WRITE | FILE_SHARE_WRITE, &sec_none,
OPEN_EXISTING, 0, 0);
if (h)
SetStdHandle (STD_ERROR_HANDLE, h);
#endif
va_start (ap, fmt);
count = __small_vsprintf (buf, fmt, ap);
va_end (ap);
WriteFile (GetStdHandle (STD_ERROR_HANDLE), buf, count, &done, NULL);
FlushFileBuffers (GetStdHandle (STD_ERROR_HANDLE));
}
#ifdef DEBUGGING
static HANDLE NO_COPY console_handle = NULL;
void
console_printf (const char *fmt,...)
{
char buf[16384];
va_list ap;
DWORD done;
int count;
if (!console_handle)
console_handle = CreateFileA ("CON", GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0);
if (console_handle == INVALID_HANDLE_VALUE)
console_handle = GetStdHandle (STD_ERROR_HANDLE);
va_start (ap, fmt);
count = __small_vsprintf (buf, fmt, ap);
va_end (ap);
WriteFile (console_handle, buf, count, &done, NULL);
FlushFileBuffers (console_handle);
}
#endif
|