source: rtems/cpukit/libmisc/shell/main_mdump.c @ e4a3d93

4.104.115
Last change on this file since e4a3d93 was caf0e53, checked in by Joel Sherrill <joel.sherrill@…>, on 10/01/08 at 20:02:34

2008-10-01 Gene Smith <gene.smith@…>

PR 1328/cpukit

  • libmisc/shell/main_mdump.c, libmisc/shell/main_mwdump.c: Fix printing of more than 256 bytes.
  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 *  MDUMP Shell Command Implmentation
3 *
4 *  Author: Fernando RUIZ CASAS
5 *  Work: fernando.ruiz@ctv.es
6 *  Home: correo@fernando-ruiz.com
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 *
12 *  $Id$
13 */
14
15#ifdef HAVE_CONFIG_H
16#include "config.h"
17#endif
18
19#include <ctype.h>
20#include <stdio.h>
21#include <inttypes.h>
22#include <string.h>
23
24#include <rtems.h>
25#include <rtems/shell.h>
26#include "internal.h"
27
28/*----------------------------------------------------------------------------*
29 * RAM MEMORY COMMANDS
30 *----------------------------------------------------------------------------*/
31
32int rtems_shell_main_mdump(
33  int   argc,
34  char *argv[]
35)
36{
37  unsigned char  n, m;
38  int            max;
39  int            res;
40  uintptr_t      addr = 0;
41  unsigned char *pb;
42
43  if (argc>1)
44    addr = rtems_shell_str2int(argv[1]);
45
46  if (argc>2) {
47    max = rtems_shell_str2int(argv[2]);
48    if (max <= 0) {
49      max = 1;      /* print 1 item if 0 or neg. */
50      res = 0;
51    }
52    else {
53      max--;
54      res = max & 0xf;/* num bytes in last row */
55      max >>= 4;      /* div by 16 */
56      max++;          /* num of rows to print */
57      if (max > 20) { /* limit to 20 */
58        max = 20;
59        res = 0xf;    /* 16 bytes print in last row */
60      }
61    }
62  }
63  else {
64    max = 20;
65    res = 0xf;
66  }
67
68  for (m=0; m<max; m++) {
69    printf("0x%08" PRIXPTR " ", addr);
70    pb = (unsigned char*) addr;
71    for (n=0;n<=(m==(max-1)?res:0xf);n++)
72      printf("%02X%c",pb[n],n==7?'-':' ');
73    for (;n<=0xf;n++)
74      printf("  %c",n==7?'-':' ');
75    for (n=0;n<=(m==(max-1)?res:0xf);n++) {
76      printf("%c", isprint(pb[n]) ? pb[n] : '.');
77    }
78    printf("\n");
79    addr += 16;
80  }
81  return 0;
82}
83
84rtems_shell_cmd_t rtems_shell_MDUMP_Command = {
85  "mdump",                                      /* name */
86  "mdump [address [length]]",                   /* usage */
87  "mem",                                        /* topic */
88  rtems_shell_main_mdump,                       /* command */
89  NULL,                                         /* alias */
90  NULL                                          /* next */
91};
92
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