1 /***************************************************************************
2 * Copyright (C) 2007-2010 by Øyvind Harboe *
4 * This program is free software; you can redistribute it and/or modify *
5 * it 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. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
20 /* this file contains various functionality useful to standalone systems */
27 #include "time_support.h"
29 #ifdef HAVE_ARPA_INET_H
30 #include <arpa/inet.h>
41 #ifdef HAVE_SYS_IOCTL_H
42 #include <sys/ioctl.h>
44 #ifdef HAVE_SYS_STAT_H
57 /* loads a file and returns a pointer to it in memory. The file contains
58 * a 0 byte(sentinel) after len bytes - the length of the file. */
59 int loadFile(const char *fileName
, void **data
, size_t *len
)
61 // ensure returned length is always sane
65 pFile
= fopen(fileName
,"rb");
68 LOG_ERROR("Can't open %s", fileName
);
71 if (fseek(pFile
, 0, SEEK_END
) != 0)
73 LOG_ERROR("Can't open %s", fileName
);
77 long fsize
= ftell(pFile
);
80 LOG_ERROR("Can't open %s", fileName
);
86 if (fseek(pFile
, 0, SEEK_SET
) != 0)
88 LOG_ERROR("Can't open %s", fileName
);
92 *data
= malloc(*len
+ 1);
95 LOG_ERROR("Can't open %s", fileName
);
100 if (fread(*data
, 1, *len
, pFile
)!=*len
)
104 LOG_ERROR("Can't open %s", fileName
);
109 // 0-byte after buffer (not included in *len) serves as a sentinel
110 char *buf
= (char *)*data
;
116 COMMAND_HANDLER(handle_cat_command
)
120 command_print(CMD_CTX
, "cat <filename>");
121 return ERROR_INVALID_ARGUMENTS
;
124 // NOTE!!! we only have line printing capability so we print the entire file as a single line.
128 int retval
= loadFile(CMD_ARGV
[0], &data
, &len
);
129 if (retval
== ERROR_OK
)
131 command_print(CMD_CTX
, "%s", (char *)data
);
136 command_print(CMD_CTX
, "%s not found", CMD_ARGV
[0]);
142 COMMAND_HANDLER(handle_trunc_command
)
146 command_print(CMD_CTX
, "trunc <filename>");
147 return ERROR_INVALID_ARGUMENTS
;
150 FILE *config_file
= NULL
;
151 config_file
= fopen(CMD_ARGV
[0], "w");
152 if (config_file
!= NULL
)
158 COMMAND_HANDLER(handle_meminfo_command
)
161 struct mallinfo info
;
165 command_print(CMD_CTX
, "meminfo");
166 return ERROR_INVALID_ARGUMENTS
;
173 command_print(CMD_CTX
, "Diff: %d", prev
- info
.fordblks
);
175 prev
= info
.fordblks
;
177 command_print(CMD_CTX
, "Available ram: %d", info
.fordblks
);
183 COMMAND_HANDLER(handle_append_command
)
187 command_print(CMD_CTX
,
188 "append <filename> [<string1>, [<string2>, ...]]");
189 return ERROR_INVALID_ARGUMENTS
;
192 int retval
= ERROR_FAIL
;
193 FILE *config_file
= NULL
;
195 config_file
= fopen(CMD_ARGV
[0], "a");
196 if (config_file
!= NULL
)
198 fseek(config_file
, 0, SEEK_END
);
201 for (i
= 1; i
< CMD_ARGC
; i
++)
203 if (fwrite(CMD_ARGV
[i
], 1, strlen(CMD_ARGV
[i
]),
204 config_file
) != strlen(CMD_ARGV
[i
]))
206 if (i
!= CMD_ARGC
- 1)
208 if (fwrite(" ", 1, 1, config_file
) != 1)
212 if ((i
== CMD_ARGC
) && (fwrite("\n", 1, 1, config_file
) == 1))
223 COMMAND_HANDLER(handle_cp_command
)
227 return ERROR_INVALID_ARGUMENTS
;
230 // NOTE!!! we only have line printing capability so we print the entire file as a single line.
234 int retval
= loadFile(CMD_ARGV
[0], &data
, &len
);
235 if (retval
!= ERROR_OK
)
238 FILE *f
= fopen(CMD_ARGV
[1], "wb");
240 retval
= ERROR_INVALID_ARGUMENTS
;
245 size_t chunk
= len
- pos
;
246 static const size_t maxChunk
= 512 * 1024; // ~1/sec
247 if (chunk
> maxChunk
)
252 if ((retval
== ERROR_OK
) && (fwrite(((char *)data
) + pos
, 1, chunk
, f
) != chunk
))
253 retval
= ERROR_INVALID_ARGUMENTS
;
255 if (retval
!= ERROR_OK
)
260 command_print(CMD_CTX
, "%zu", len
- pos
);
268 if (retval
== ERROR_OK
)
270 command_print(CMD_CTX
, "Copied %s to %s", CMD_ARGV
[0], CMD_ARGV
[1]);
273 command_print(CMD_CTX
, "copy failed");
281 if (retval
!= ERROR_OK
)
290 #define SHOW_RESULT(a, b) LOG_ERROR(#a " failed %d\n", (int)b)
293 void copyfile(char *name2
, char *name1
)
301 fd1
= open(name1
, O_WRONLY
| O_CREAT
, 0664);
303 SHOW_RESULT(open
, fd1
);
305 fd2
= open(name2
, O_RDONLY
);
307 SHOW_RESULT(open
, fd2
);
311 done
= read(fd2
, buf
, IOSIZE
);
314 SHOW_RESULT(read
, done
);
318 if (done
== 0) break;
320 wrote
= write(fd1
, buf
, done
);
321 if (wrote
!= done
) SHOW_RESULT(write
, wrote
);
323 if (wrote
!= done
) break;
327 if (err
< 0) SHOW_RESULT(close
, err
);
330 if (err
< 0) SHOW_RESULT(close
, err
);
334 /* utility fn to copy a directory */
335 void copydir(char *name
, char *destdir
)
340 dirp
= opendir(destdir
);
343 mkdir(destdir
, 0777);
346 err
= closedir(dirp
);
349 dirp
= opendir(name
);
350 if (dirp
== NULL
) SHOW_RESULT(opendir
, -1);
354 struct dirent
*entry
= readdir(dirp
);
359 if (strcmp(entry
->d_name
, ".") == 0)
361 if (strcmp(entry
->d_name
, "..") == 0)
366 char fullPath
[PATH_MAX
];
367 strncpy(fullPath
, name
, PATH_MAX
);
368 strcat(fullPath
, "/");
369 strncat(fullPath
, entry
->d_name
, PATH_MAX
- strlen(fullPath
));
371 if (stat(fullPath
, &buf
) == -1)
373 LOG_ERROR("unable to read status from %s", fullPath
);
376 isDir
= S_ISDIR(buf
.st_mode
) != 0;
381 // diag_printf("<INFO>: entry %14s",entry->d_name);
382 char fullname
[PATH_MAX
];
383 char fullname2
[PATH_MAX
];
385 strcpy(fullname
, name
);
386 strcat(fullname
, "/");
387 strcat(fullname
, entry
->d_name
);
389 strcpy(fullname2
, destdir
);
390 strcat(fullname2
, "/");
391 strcat(fullname2
, entry
->d_name
);
392 // diag_printf("from %s to %s\n", fullname, fullname2);
393 copyfile(fullname
, fullname2
);
395 // diag_printf("\n");
398 err
= closedir(dirp
);
399 if (err
< 0) SHOW_RESULT(stat
, err
);
405 COMMAND_HANDLER(handle_rm_command
)
408 return ERROR_INVALID_ARGUMENTS
;
411 if (rmdir(CMD_ARGV
[0]) == 0)
413 else if (unlink(CMD_ARGV
[0]) == 0)
416 return del
? ERROR_OK
: ERROR_FAIL
;
421 ioutil_Jim_Command_ls(Jim_Interp
*interp
,
423 Jim_Obj
* const *argv
)
427 Jim_WrongNumArgs(interp
, 1, argv
, "ls ?dir?");
431 char *name
= (char*) Jim_GetString(argv
[1], NULL
);
434 dirp
= opendir(name
);
439 Jim_Obj
*objPtr
= Jim_NewListObj(interp
, NULL
, 0);
443 struct dirent
*entry
= NULL
;
444 entry
= readdir(dirp
);
448 if ((strcmp(".", entry
->d_name
) == 0)||(strcmp("..", entry
->d_name
) == 0))
451 Jim_ListAppendElement(interp
, objPtr
, Jim_NewStringObj(interp
, entry
->d_name
, strlen(entry
->d_name
)));
455 Jim_SetResult(interp
, objPtr
);
461 ioutil_Jim_Command_peek(Jim_Interp
*interp
,
463 Jim_Obj
* const *argv
)
467 Jim_WrongNumArgs(interp
, 1, argv
, "peek ?address?");
472 if (Jim_GetLong(interp
, argv
[1], &address
) != JIM_OK
)
475 int value
= *((volatile int *) address
);
477 Jim_SetResult(interp
, Jim_NewIntObj(interp
, value
));
483 ioutil_Jim_Command_poke(Jim_Interp
*interp
,
485 Jim_Obj
* const *argv
)
489 Jim_WrongNumArgs(interp
, 1, argv
, "poke ?address? ?value?");
494 if (Jim_GetLong(interp
, argv
[1], &address
) != JIM_OK
)
497 if (Jim_GetLong(interp
, argv
[2], &value
) != JIM_OK
)
500 *((volatile int *) address
) = value
;
506 /* not so pretty code to fish out ip number*/
507 static int ioutil_Jim_Command_ip(Jim_Interp
*interp
, int argc
,
508 Jim_Obj
* const *argv
)
510 #if !defined(__CYGWIN__)
511 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
513 struct ifaddrs
*ifa
= NULL
, *ifp
= NULL
;
515 if (getifaddrs(&ifp
) < 0)
520 for (ifa
= ifp
; ifa
; ifa
= ifa
->ifa_next
)
525 if (ifa
->ifa_addr
->sa_family
== AF_INET
)
526 salen
= sizeof(struct sockaddr_in
);
527 else if (ifa
->ifa_addr
->sa_family
== AF_INET6
)
528 salen
= sizeof(struct sockaddr_in6
);
532 if (getnameinfo(ifa
->ifa_addr
, salen
, ip
, sizeof(ip
), NULL
, 0,
538 Jim_AppendString(interp
, tclOutput
, ip
, strlen(ip
));
545 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "fixme!!!", 0);
546 LOG_ERROR("NOT IMPLEMENTED!!!");
548 Jim_SetResult(interp
, tclOutput
);
553 /* not so pretty code to fish out eth0 mac address */
554 static int ioutil_Jim_Command_mac(Jim_Interp
*interp
, int argc
,
555 Jim_Obj
* const *argv
)
559 struct ifreq
*ifr
, *ifend
;
565 SockFD
= socket(AF_INET
, SOCK_DGRAM
, 0);
571 ifc
.ifc_len
= sizeof(ifs
);
573 if (ioctl(SockFD
, SIOCGIFCONF
, &ifc
) < 0)
579 ifend
= ifs
+ (ifc
.ifc_len
/ sizeof(struct ifreq
));
580 for (ifr
= ifc
.ifc_req
; ifr
< ifend
; ifr
++)
582 //if (ifr->ifr_addr.sa_family == AF_INET)
584 if (strcmp("eth0", ifr
->ifr_name
) != 0)
586 strncpy(ifreq
.ifr_name
, ifr
->ifr_name
, sizeof(ifreq
.ifr_name
));
587 if (ioctl(SockFD
, SIOCGIFHWADDR
, &ifreq
) < 0)
596 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
599 sprintf(buffer
, "%02x-%02x-%02x-%02x-%02x-%02x",
600 ifreq
.ifr_hwaddr
.sa_data
[0]&0xff,
601 ifreq
.ifr_hwaddr
.sa_data
[1]&0xff,
602 ifreq
.ifr_hwaddr
.sa_data
[2]&0xff,
603 ifreq
.ifr_hwaddr
.sa_data
[3]&0xff,
604 ifreq
.ifr_hwaddr
.sa_data
[4]&0xff,
605 ifreq
.ifr_hwaddr
.sa_data
[5]&0xff);
607 Jim_AppendString(interp
, tclOutput
, buffer
, strlen(buffer
));
609 Jim_SetResult(interp
, tclOutput
);
620 static const struct command_registration ioutil_command_handlers
[] = {
623 .handler
= handle_cat_command
,
625 .help
= "display text file content",
630 .handler
= handle_trunc_command
,
632 .help
= "truncate a file to zero length",
637 .handler
= handle_cp_command
,
639 .help
= "copy a file",
640 .usage
= "src_file_name dst_file_name",
643 .name
= "append_file",
644 .handler
= handle_append_command
,
646 .help
= "append a variable number of strings to a file",
647 .usage
= "file_name [string ...]",
651 .handler
= handle_meminfo_command
,
653 .help
= "display free heap space",
658 .handler
= handle_rm_command
,
659 .help
= "remove a directory or file",
660 .usage
= "file_name",
664 * Peek and poke are security holes -- they manipulate
665 * server-internal addresses.
672 .jim_handler
= ioutil_Jim_Command_peek
,
673 .help
= "peek at a memory address",
679 .jim_handler
= ioutil_Jim_Command_poke
,
680 .help
= "poke at a memory address",
681 .usage
= "address value",
686 .jim_handler
= ioutil_Jim_Command_ls
,
687 .help
= "show a listing of files",
693 .jim_handler
= ioutil_Jim_Command_mac
,
694 .help
= "show MAC address",
698 .jim_handler
= ioutil_Jim_Command_ip
,
700 .help
= "show IP address",
702 COMMAND_REGISTRATION_DONE
705 int ioutil_init(struct command_context
*cmd_ctx
)
707 return register_commands(cmd_ctx
, NULL
, ioutil_command_handlers
);
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