| 1 |
/***************************************************************************
|
| 2 |
io.c - description
|
| 3 |
-------------------
|
| 4 |
begin : Mon Oct 18 2004
|
| 5 |
copyright : (C) 2004 by Leaflet
|
| 6 |
email : leaflet@leafok.com
|
| 7 |
***************************************************************************/
|
| 8 |
|
| 9 |
/***************************************************************************
|
| 10 |
* *
|
| 11 |
* This program is free software; you can redistribute it and/or modify *
|
| 12 |
* it under the terms of the GNU General Public License as published by *
|
| 13 |
* the Free Software Foundation; either version 2 of the License, or *
|
| 14 |
* (at your option) any later version. *
|
| 15 |
* *
|
| 16 |
***************************************************************************/
|
| 17 |
|
| 18 |
#include "io.h"
|
| 19 |
#include "log.h"
|
| 20 |
#include "common.h"
|
| 21 |
#include "tcplib.h"
|
| 22 |
#include <stdio.h>
|
| 23 |
#include <stdarg.h>
|
| 24 |
#include <time.h>
|
| 25 |
#include <fcntl.h>
|
| 26 |
#include <unistd.h>
|
| 27 |
#include <sys/ioctl.h>
|
| 28 |
|
| 29 |
int outc(char c)
|
| 30 |
{
|
| 31 |
int retval;
|
| 32 |
|
| 33 |
retval = fprintf(stdout, "%c", c);
|
| 34 |
|
| 35 |
return retval;
|
| 36 |
}
|
| 37 |
|
| 38 |
int prints(const char *format, ...)
|
| 39 |
{
|
| 40 |
va_list args;
|
| 41 |
int retval;
|
| 42 |
|
| 43 |
va_start(args, format);
|
| 44 |
retval = vfprintf(stdout, format, args);
|
| 45 |
va_end(args);
|
| 46 |
|
| 47 |
return retval;
|
| 48 |
}
|
| 49 |
|
| 50 |
int iflush()
|
| 51 |
{
|
| 52 |
int retval;
|
| 53 |
|
| 54 |
retval = fflush(stdout);
|
| 55 |
|
| 56 |
return retval;
|
| 57 |
}
|
| 58 |
|
| 59 |
int igetch(int clear_buf)
|
| 60 |
{
|
| 61 |
// static input buffer
|
| 62 |
static unsigned char buf[256];
|
| 63 |
static ssize_t len = 0;
|
| 64 |
static int pos = 0;
|
| 65 |
|
| 66 |
unsigned char tmp[256];
|
| 67 |
int out = KEY_NULL;
|
| 68 |
int in_esc = 0;
|
| 69 |
int in_ascii = 0;
|
| 70 |
int in_control = 0;
|
| 71 |
int i = 0;
|
| 72 |
|
| 73 |
if (clear_buf)
|
| 74 |
{
|
| 75 |
pos = 0;
|
| 76 |
len = 0;
|
| 77 |
|
| 78 |
return 0;
|
| 79 |
}
|
| 80 |
|
| 81 |
// Stop on system exit
|
| 82 |
if (SYS_exit)
|
| 83 |
return KEY_NULL;
|
| 84 |
|
| 85 |
if (pos >= len)
|
| 86 |
{
|
| 87 |
fd_set testfds;
|
| 88 |
struct timeval timeout;
|
| 89 |
|
| 90 |
pos = 0;
|
| 91 |
len = 0;
|
| 92 |
|
| 93 |
FD_ZERO(&testfds);
|
| 94 |
FD_SET(0, &testfds);
|
| 95 |
|
| 96 |
timeout.tv_sec = 1;
|
| 97 |
timeout.tv_usec = 0;
|
| 98 |
|
| 99 |
int result = SignalSafeSelect(FD_SETSIZE, &testfds, (fd_set *)NULL,
|
| 100 |
(fd_set *)NULL, &timeout);
|
| 101 |
|
| 102 |
if (result == 0)
|
| 103 |
{
|
| 104 |
return KEY_TIMEOUT;
|
| 105 |
}
|
| 106 |
if (result < 0)
|
| 107 |
{
|
| 108 |
log_error("select() error (%d) !\n", result);
|
| 109 |
return KEY_NULL;
|
| 110 |
}
|
| 111 |
if (result > 0)
|
| 112 |
{
|
| 113 |
if (FD_ISSET(0, &testfds))
|
| 114 |
{
|
| 115 |
len = read(0, buf, 255);
|
| 116 |
}
|
| 117 |
}
|
| 118 |
|
| 119 |
// For debug
|
| 120 |
// for (j = 0; j < len; j++)
|
| 121 |
// log_std ("<--[%u]\n", (buf[j] + 256) % 256);
|
| 122 |
}
|
| 123 |
|
| 124 |
while (pos < len)
|
| 125 |
{
|
| 126 |
unsigned char c = buf[pos++];
|
| 127 |
|
| 128 |
if (c == '\0')
|
| 129 |
{
|
| 130 |
out = c;
|
| 131 |
break;
|
| 132 |
}
|
| 133 |
|
| 134 |
if (c == KEY_CONTROL)
|
| 135 |
{
|
| 136 |
if (in_control == 0)
|
| 137 |
{
|
| 138 |
in_control = 1;
|
| 139 |
i = 0;
|
| 140 |
continue;
|
| 141 |
}
|
| 142 |
}
|
| 143 |
|
| 144 |
if (in_control)
|
| 145 |
{
|
| 146 |
tmp[i++] = c;
|
| 147 |
if (i >= 2)
|
| 148 |
{
|
| 149 |
out = (int)tmp[0] * 256 + tmp[1];
|
| 150 |
in_control = 0;
|
| 151 |
break;
|
| 152 |
}
|
| 153 |
continue;
|
| 154 |
}
|
| 155 |
|
| 156 |
if (c == ESC_KEY)
|
| 157 |
{
|
| 158 |
if (in_esc == 0)
|
| 159 |
{
|
| 160 |
in_esc = 1;
|
| 161 |
in_ascii = 1;
|
| 162 |
i = 0;
|
| 163 |
continue;
|
| 164 |
}
|
| 165 |
else
|
| 166 |
{
|
| 167 |
out = ESC_KEY;
|
| 168 |
in_esc = 0;
|
| 169 |
break;
|
| 170 |
}
|
| 171 |
}
|
| 172 |
|
| 173 |
in_esc = 0;
|
| 174 |
|
| 175 |
if (in_ascii)
|
| 176 |
{
|
| 177 |
tmp[i++] = c;
|
| 178 |
if (c == 'm')
|
| 179 |
{
|
| 180 |
in_ascii = 0;
|
| 181 |
continue;
|
| 182 |
}
|
| 183 |
if (i == 2 && c >= 'A' && c <= 'D')
|
| 184 |
{
|
| 185 |
in_ascii = 0;
|
| 186 |
switch (c)
|
| 187 |
{
|
| 188 |
case 'A':
|
| 189 |
out = KEY_UP;
|
| 190 |
break;
|
| 191 |
case 'B':
|
| 192 |
out = KEY_DOWN;
|
| 193 |
break;
|
| 194 |
case 'C':
|
| 195 |
out = KEY_RIGHT;
|
| 196 |
break;
|
| 197 |
case 'D':
|
| 198 |
out = KEY_LEFT;
|
| 199 |
break;
|
| 200 |
}
|
| 201 |
break;
|
| 202 |
}
|
| 203 |
if (i == 3 && tmp[0] == 91 && tmp[2] == 126)
|
| 204 |
{
|
| 205 |
in_ascii = 0;
|
| 206 |
switch (tmp[1])
|
| 207 |
{
|
| 208 |
case 49:
|
| 209 |
out = KEY_HOME;
|
| 210 |
break;
|
| 211 |
case 51:
|
| 212 |
out = KEY_DEL;
|
| 213 |
break;
|
| 214 |
case 52:
|
| 215 |
out = KEY_END;
|
| 216 |
break;
|
| 217 |
case 53:
|
| 218 |
out = KEY_PGUP;
|
| 219 |
break;
|
| 220 |
case 54:
|
| 221 |
out = KEY_PGDN;
|
| 222 |
break;
|
| 223 |
}
|
| 224 |
break;
|
| 225 |
}
|
| 226 |
continue;
|
| 227 |
}
|
| 228 |
|
| 229 |
out = ((int)c + 256) % 256;
|
| 230 |
break;
|
| 231 |
}
|
| 232 |
|
| 233 |
// for debug
|
| 234 |
// log_std ("-->[%u]\n", out);
|
| 235 |
|
| 236 |
return out;
|
| 237 |
}
|
| 238 |
|
| 239 |
int igetch_t(long int sec)
|
| 240 |
{
|
| 241 |
int ch;
|
| 242 |
time_t t_begin = time(0);
|
| 243 |
|
| 244 |
do
|
| 245 |
{
|
| 246 |
ch = igetch(0);
|
| 247 |
} while ((ch == KEY_TIMEOUT || ch == 0xa) && (time(0) - t_begin < sec));
|
| 248 |
|
| 249 |
return ch;
|
| 250 |
}
|
| 251 |
|
| 252 |
int ikbhit()
|
| 253 |
{
|
| 254 |
int len;
|
| 255 |
|
| 256 |
ioctl(0, FIONREAD, &len);
|
| 257 |
|
| 258 |
return len;
|
| 259 |
}
|
Parent Directory
| 
Revision Log