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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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
54 /* loads a file and returns a pointer to it in memory. The file contains
55 * a 0 byte(sentinel) after len bytes - the length of the file. */
56 static int loadFile(const char *fileName
, char **data
, size_t *len
)
58 /* ensure returned length is always sane */
62 pFile
= fopen(fileName
, "rb");
64 LOG_ERROR("Can't open %s", fileName
);
67 if (fseek(pFile
, 0, SEEK_END
) != 0) {
68 LOG_ERROR("Can't open %s", fileName
);
72 long fsize
= ftell(pFile
);
74 LOG_ERROR("Can't open %s", fileName
);
80 if (fseek(pFile
, 0, SEEK_SET
) != 0) {
81 LOG_ERROR("Can't open %s", fileName
);
85 *data
= malloc(*len
+ 1);
87 LOG_ERROR("Can't open %s", fileName
);
92 if (fread(*data
, 1, *len
, pFile
) != *len
) {
95 LOG_ERROR("Can't open %s", fileName
);
100 /* 0-byte after buffer (not included in *len) serves as a sentinel */
106 COMMAND_HANDLER(handle_cat_command
)
109 return ERROR_COMMAND_SYNTAX_ERROR
;
111 /* NOTE!!! we only have line printing capability so we print the entire file as a single
116 int retval
= loadFile(CMD_ARGV
[0], &data
, &len
);
117 if (retval
== ERROR_OK
) {
118 command_print(CMD_CTX
, "%s", data
);
121 command_print(CMD_CTX
, "%s not found", CMD_ARGV
[0]);
126 COMMAND_HANDLER(handle_trunc_command
)
129 return ERROR_COMMAND_SYNTAX_ERROR
;
131 FILE *config_file
= NULL
;
132 config_file
= fopen(CMD_ARGV
[0], "w");
133 if (config_file
!= NULL
)
140 COMMAND_HANDLER(handle_meminfo_command
)
143 struct mallinfo info
;
146 return ERROR_COMMAND_SYNTAX_ERROR
;
151 command_print(CMD_CTX
, "Diff: %d", prev
- info
.fordblks
);
152 prev
= info
.fordblks
;
154 command_print(CMD_CTX
, "Available ram: %d", info
.fordblks
);
160 COMMAND_HANDLER(handle_append_command
)
163 return ERROR_COMMAND_SYNTAX_ERROR
;
165 int retval
= ERROR_FAIL
;
166 FILE *config_file
= NULL
;
168 config_file
= fopen(CMD_ARGV
[0], "a");
169 if (config_file
!= NULL
) {
170 fseek(config_file
, 0, SEEK_END
);
173 for (i
= 1; i
< CMD_ARGC
; i
++) {
174 if (fwrite(CMD_ARGV
[i
], 1, strlen(CMD_ARGV
[i
]),
175 config_file
) != strlen(CMD_ARGV
[i
]))
177 if (i
!= CMD_ARGC
- 1) {
178 if (fwrite(" ", 1, 1, config_file
) != 1)
182 if ((i
== CMD_ARGC
) && (fwrite("\n", 1, 1, config_file
) == 1))
191 COMMAND_HANDLER(handle_cp_command
)
194 return ERROR_COMMAND_SYNTAX_ERROR
;
196 /* NOTE!!! we only have line printing capability so we print the entire file as a single
201 int retval
= loadFile(CMD_ARGV
[0], &data
, &len
);
202 if (retval
!= ERROR_OK
)
205 FILE *f
= fopen(CMD_ARGV
[1], "wb");
207 retval
= ERROR_COMMAND_SYNTAX_ERROR
;
211 size_t chunk
= len
- pos
;
212 static const size_t maxChunk
= 512 * 1024; /* ~1/sec */
213 if (chunk
> maxChunk
)
216 if ((retval
== ERROR_OK
) && (fwrite(data
+ pos
, 1, chunk
, f
) != chunk
))
217 retval
= ERROR_COMMAND_SYNTAX_ERROR
;
219 if (retval
!= ERROR_OK
)
222 command_print(CMD_CTX
, "%zu", len
- pos
);
230 if (retval
== ERROR_OK
)
231 command_print(CMD_CTX
, "Copied %s to %s", CMD_ARGV
[0], CMD_ARGV
[1]);
233 command_print(CMD_CTX
, "copy failed");
240 if (retval
!= ERROR_OK
)
246 #define SHOW_RESULT(a, b) LOG_ERROR(# a " failed %d\n", (int)b)
249 void copyfile(char *name2
, char *name1
)
257 fd1
= open(name1
, O_WRONLY
| O_CREAT
, 0664);
259 SHOW_RESULT(open
, fd1
);
261 fd2
= open(name2
, O_RDONLY
);
263 SHOW_RESULT(open
, fd2
);
266 done
= read(fd2
, buf
, IOSIZE
);
268 SHOW_RESULT(read
, done
);
275 wrote
= write(fd1
, buf
, done
);
277 SHOW_RESULT(write
, wrote
);
285 SHOW_RESULT(close
, err
);
289 SHOW_RESULT(close
, err
);
292 /* utility fn to copy a directory */
293 void copydir(char *name
, char *destdir
)
298 dirp
= opendir(destdir
);
300 mkdir(destdir
, 0777);
302 err
= closedir(dirp
);
304 dirp
= opendir(name
);
306 SHOW_RESULT(opendir
, -1);
309 struct dirent
*entry
= readdir(dirp
);
314 if (strcmp(entry
->d_name
, ".") == 0)
316 if (strcmp(entry
->d_name
, "..") == 0)
321 char fullPath
[PATH_MAX
];
322 strncpy(fullPath
, name
, PATH_MAX
);
323 strcat(fullPath
, "/");
324 strncat(fullPath
, entry
->d_name
, PATH_MAX
- strlen(fullPath
));
326 if (stat(fullPath
, &buf
) == -1) {
327 LOG_ERROR("unable to read status from %s", fullPath
);
330 isDir
= S_ISDIR(buf
.st_mode
) != 0;
335 /* diag_printf("<INFO>: entry %14s",entry->d_name); */
336 char fullname
[PATH_MAX
];
337 char fullname2
[PATH_MAX
];
339 strcpy(fullname
, name
);
340 strcat(fullname
, "/");
341 strcat(fullname
, entry
->d_name
);
343 strcpy(fullname2
, destdir
);
344 strcat(fullname2
, "/");
345 strcat(fullname2
, entry
->d_name
);
346 /* diag_printf("from %s to %s\n", fullname, fullname2); */
347 copyfile(fullname
, fullname2
);
349 /* diag_printf("\n"); */
352 err
= closedir(dirp
);
354 SHOW_RESULT(stat
, err
);
357 COMMAND_HANDLER(handle_rm_command
)
360 return ERROR_COMMAND_SYNTAX_ERROR
;
363 if (rmdir(CMD_ARGV
[0]) == 0)
365 else if (unlink(CMD_ARGV
[0]) == 0)
368 return del
? ERROR_OK
: ERROR_FAIL
;
371 static int ioutil_Jim_Command_ls(Jim_Interp
*interp
,
373 Jim_Obj
* const *argv
)
376 Jim_WrongNumArgs(interp
, 1, argv
, "ls ?dir?");
380 const char *name
= Jim_GetString(argv
[1], NULL
);
383 dirp
= opendir(name
);
386 Jim_Obj
*objPtr
= Jim_NewListObj(interp
, NULL
, 0);
389 struct dirent
*entry
= NULL
;
390 entry
= readdir(dirp
);
394 if ((strcmp(".", entry
->d_name
) == 0) || (strcmp("..", entry
->d_name
) == 0))
397 Jim_ListAppendElement(interp
, objPtr
,
398 Jim_NewStringObj(interp
, entry
->d_name
, strlen(entry
->d_name
)));
402 Jim_SetResult(interp
, objPtr
);
407 static int ioutil_Jim_Command_peek(Jim_Interp
*interp
,
409 Jim_Obj
*const *argv
)
412 Jim_WrongNumArgs(interp
, 1, argv
, "peek ?address?");
417 if (Jim_GetLong(interp
, argv
[1], &address
) != JIM_OK
)
420 int value
= *((volatile int *) address
);
422 Jim_SetResult(interp
, Jim_NewIntObj(interp
, value
));
427 static int ioutil_Jim_Command_poke(Jim_Interp
*interp
,
429 Jim_Obj
*const *argv
)
432 Jim_WrongNumArgs(interp
, 1, argv
, "poke ?address? ?value?");
437 if (Jim_GetLong(interp
, argv
[1], &address
) != JIM_OK
)
440 if (Jim_GetLong(interp
, argv
[2], &value
) != JIM_OK
)
443 *((volatile int *) address
) = value
;
448 /* not so pretty code to fish out ip number*/
449 static int ioutil_Jim_Command_ip(Jim_Interp
*interp
, int argc
,
450 Jim_Obj
*const *argv
)
452 #if !defined(__CYGWIN__)
453 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
455 struct ifaddrs
*ifa
= NULL
, *ifp
= NULL
;
457 if (getifaddrs(&ifp
) < 0)
460 for (ifa
= ifp
; ifa
; ifa
= ifa
->ifa_next
) {
464 if (ifa
->ifa_addr
->sa_family
== AF_INET
)
465 salen
= sizeof(struct sockaddr_in
);
466 else if (ifa
->ifa_addr
->sa_family
== AF_INET6
)
467 salen
= sizeof(struct sockaddr_in6
);
471 if (getnameinfo(ifa
->ifa_addr
, salen
, ip
, sizeof(ip
), NULL
, 0,
475 Jim_AppendString(interp
, tclOutput
, ip
, strlen(ip
));
482 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "fixme!!!", 0);
483 LOG_ERROR("NOT IMPLEMENTED!!!");
485 Jim_SetResult(interp
, tclOutput
);
490 #ifdef HAVE_SYS_IOCTL_H
492 /* not so pretty code to fish out eth0 mac address */
493 static int ioutil_Jim_Command_mac(Jim_Interp
*interp
, int argc
,
494 Jim_Obj
*const *argv
)
496 struct ifreq
*ifr
, *ifend
;
502 SockFD
= socket(AF_INET
, SOCK_DGRAM
, 0);
506 ifc
.ifc_len
= sizeof(ifs
);
508 if (ioctl(SockFD
, SIOCGIFCONF
, &ifc
) < 0) {
513 ifend
= ifs
+ (ifc
.ifc_len
/ sizeof(struct ifreq
));
514 for (ifr
= ifc
.ifc_req
; ifr
< ifend
; ifr
++) {
515 /* if (ifr->ifr_addr.sa_family == AF_INET) */
517 if (strcmp("eth0", ifr
->ifr_name
) != 0)
519 strncpy(ifreq
.ifr_name
, ifr
->ifr_name
, sizeof(ifreq
.ifr_name
));
520 if (ioctl(SockFD
, SIOCGIFHWADDR
, &ifreq
) < 0) {
527 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
530 sprintf(buffer
, "%02x-%02x-%02x-%02x-%02x-%02x",
531 ifreq
.ifr_hwaddr
.sa_data
[0]&0xff,
532 ifreq
.ifr_hwaddr
.sa_data
[1]&0xff,
533 ifreq
.ifr_hwaddr
.sa_data
[2]&0xff,
534 ifreq
.ifr_hwaddr
.sa_data
[3]&0xff,
535 ifreq
.ifr_hwaddr
.sa_data
[4]&0xff,
536 ifreq
.ifr_hwaddr
.sa_data
[5]&0xff);
538 Jim_AppendString(interp
, tclOutput
, buffer
, strlen(buffer
));
540 Jim_SetResult(interp
, tclOutput
);
553 static const struct command_registration ioutil_command_handlers
[] = {
556 .handler
= handle_cat_command
,
558 .help
= "display text file content",
559 .usage
= "file_name",
563 .handler
= handle_trunc_command
,
565 .help
= "truncate a file to zero length",
566 .usage
= "file_name",
570 .handler
= handle_cp_command
,
572 .help
= "copy a file",
573 .usage
= "src_file_name dst_file_name",
576 .name
= "append_file",
577 .handler
= handle_append_command
,
579 .help
= "append a variable number of strings to a file",
580 .usage
= "file_name [<string1>, [<string2>, ...]]",
585 .handler
= handle_meminfo_command
,
587 .help
= "display free heap space",
593 .handler
= handle_rm_command
,
594 .help
= "remove a directory or file",
595 .usage
= "file_name",
599 * Peek and poke are security holes -- they manipulate
600 * server-internal addresses.
607 .jim_handler
= ioutil_Jim_Command_peek
,
608 .help
= "peek at a memory address",
614 .jim_handler
= ioutil_Jim_Command_poke
,
615 .help
= "poke at a memory address",
616 .usage
= "address value",
621 .jim_handler
= ioutil_Jim_Command_ls
,
622 .help
= "show a listing of files",
625 #ifdef HAVE_SYS_IOCTL_H
630 .jim_handler
= ioutil_Jim_Command_mac
,
631 .help
= "show MAC address",
637 .jim_handler
= ioutil_Jim_Command_ip
,
639 .help
= "show IP address",
641 COMMAND_REGISTRATION_DONE
644 int ioutil_init(struct command_context
*cmd_ctx
)
646 return register_commands(cmd_ctx
, NULL
, ioutil_command_handlers
);
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