source: trunk/kernel/ksh/miniShellIo.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

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1/*
2   This file is part of MutekP.
3 
4   MutekP is free software; you can redistribute it and/or modify it
5   under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2 of the License, or
7   (at your option) any later version.
8 
9   MutekP is distributed in the hope that it will be useful, but
10   WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   General Public License for more details.
13 
14   You should have received a copy of the GNU General Public License
15   along with MutekP; if not, write to the Free Software Foundation,
16   Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 
18   UPMC / LIP6 / SOC (c) 2008
19   Copyright Ghassan Almaless <ghassan.almaless@gmail.com>
20*/
21
22#include <ctype.h>
23#include <libk.h>
24#include <string.h>
25#include <thread.h>
26#include <cluster.h>
27#include <sys-vfs.h>
28#include <driver.h>
29#include <device.h>
30#include <kminiShell.h>
31#include <stdarg.h>
32
33kdmsg_channel_t ksh_tty = {{.id = 0}};
34 
35char getChar()
36{
37  struct device_s *tty;
38  dev_request_t rq;
39  char ch;
40  size_t size;
41 
42  ch = 0;
43  size = 0;
44  tty = ttys_tbl[ksh_tty.id];
45
46  while(size != 1 && size != -1)
47  {
48    rq.dst = (uint32_t*) &ch;
49    rq.count = 1;
50    rq.flags = 0;
51    size = tty->op.dev.read(tty, &rq);
52  }
53  return ch;
54}
55
56
57ssize_t ksh_getLine(char *buff, int count)
58{
59  struct device_s *tty;
60  dev_request_t rq;
61  ssize_t size;
62 
63  tty = ttys_tbl[ksh_tty.id];
64
65  rq.dst = (uint32_t*) buff;
66  rq.count = count;
67  rq.flags = 0;
68  size = tty->op.dev.read(tty, &rq);
69  return size;
70}
71
72void ksh_write(void *buff, size_t size)
73{
74  struct device_s *tty;
75  dev_request_t rq;
76 
77  tty = ttys_tbl[ksh_tty.id];
78  rq.src = buff;
79  rq.count = size;
80  rq.flags = 0;
81  (void)tty->op.dev.write(tty, &rq);
82}
83
84static char ksh_msg_buff[MSG_STR_LEN];
85
86void ksh_print(const char *fmt, ...)
87{
88  va_list ap;
89  int count;
90
91  va_start (ap, fmt);
92  count = iprintk(&ksh_msg_buff[0], current_cid, 1, (char *) fmt, ap);
93  assert(count < (MSG_STR_LEN-1));
94  va_end (ap);
95  count = (count < (MSG_STR_LEN -1)) ? count : MSG_STR_LEN - 1;
96  ksh_msg_buff[count + 1] = 0;
97  ksh_write(ksh_msg_buff, count);
98}
99
100void getString(char *buff,size_t size)
101{
102  char ch = 0;
103  char *str = buff;
104  char *val = NULL;
105  char line[128];
106  char *line_ptr = &line[0];
107  ssize_t count,i;
108 
109
110  while(size > 0)
111  {
112    count = ksh_getLine(line_ptr,128);
113    i=0;
114
115    while((count > 0) && (size > 0))
116    {
117      ch=line[i++];
118     
119      if(ch == '\r')
120        continue;
121
122      if(ch == '\n')
123        goto GETSTRING_END;
124
125      if(!isprint(ch))
126      {
127        if((ch == 0x7F) || (ch == 0x08))
128          str--;
129        count ++;
130        size ++;
131        continue;
132      }
133
134      *str ++ = ch;
135      ch = 0;
136      count --;
137      size --;
138    }
139  }
140 
141 GETSTRING_END:
142  val = buff;
143  *str = 0;
144}
145
146void cmdLineAnalyser(ms_args_t *args)
147{
148  char buff[128];
149  char *str = &buff[0];
150  char *arg = NULL;
151  uint_t i;
152
153  getString(buff,128);
154  i=0;
155
156  while((*str != '\0') && (i < MS_MAX_ARG_LEN))
157  {
158    while((*str) && (isspace(*str))) str++;
159   
160    if(!(*str)) break;
161   
162    arg = args->argv[i];
163 
164    while((*str) && (!isspace(*str))) 
165      *arg++ = *str ++;
166
167    i++; *arg = 0;
168  }
169  args->argv[i][0] = 0;
170  args->argc = i;
171}
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