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 load_file(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 = load_file(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 = load_file(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 COMMAND_HANDLER(handle_rm_command)
249 return ERROR_COMMAND_SYNTAX_ERROR;
252 if (rmdir(CMD_ARGV[0]) == 0)
254 else if (unlink(CMD_ARGV[0]) == 0)
257 return del ? ERROR_OK : ERROR_FAIL;
260 static int ioutil_Jim_Command_ls(Jim_Interp *interp,
262 Jim_Obj * const *argv)
265 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
269 const char *name = Jim_GetString(argv[1], NULL);
272 dirp = opendir(name);
275 Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
278 struct dirent *entry = NULL;
279 entry = readdir(dirp);
283 if ((strcmp(".", entry->d_name) == 0) || (strcmp("..", entry->d_name) == 0))
286 Jim_ListAppendElement(interp, objPtr,
287 Jim_NewStringObj(interp, entry->d_name, strlen(entry->d_name)));
291 Jim_SetResult(interp, objPtr);
296 static int ioutil_Jim_Command_peek(Jim_Interp *interp,
298 Jim_Obj *const *argv)
301 Jim_WrongNumArgs(interp, 1, argv, "peek ?address?");
306 if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
309 int value = *((volatile int *) address);
311 Jim_SetResult(interp, Jim_NewIntObj(interp, value));
316 static int ioutil_Jim_Command_poke(Jim_Interp *interp,
318 Jim_Obj *const *argv)
321 Jim_WrongNumArgs(interp, 1, argv, "poke ?address? ?value?");
326 if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
329 if (Jim_GetLong(interp, argv[2], &value) != JIM_OK)
332 *((volatile int *) address) = value;
337 /* not so pretty code to fish out ip number*/
338 static int ioutil_Jim_Command_ip(Jim_Interp *interp, int argc,
339 Jim_Obj *const *argv)
341 #if !defined(__CYGWIN__)
342 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
344 struct ifaddrs *ifa = NULL, *ifp = NULL;
346 if (getifaddrs(&ifp) < 0)
349 for (ifa = ifp; ifa; ifa = ifa->ifa_next) {
353 if (ifa->ifa_addr->sa_family == AF_INET)
354 salen = sizeof(struct sockaddr_in);
355 else if (ifa->ifa_addr->sa_family == AF_INET6)
356 salen = sizeof(struct sockaddr_in6);
360 if (getnameinfo(ifa->ifa_addr, salen, ip, sizeof(ip), NULL, 0,
364 Jim_AppendString(interp, tclOutput, ip, strlen(ip));
371 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "fixme!!!", 0);
372 LOG_ERROR("NOT IMPLEMENTED!!!");
374 Jim_SetResult(interp, tclOutput);
379 #ifdef HAVE_SYS_IOCTL_H
381 /* not so pretty code to fish out eth0 mac address */
382 static int ioutil_Jim_Command_mac(Jim_Interp *interp, int argc,
383 Jim_Obj *const *argv)
385 struct ifreq *ifr, *ifend;
391 SockFD = socket(AF_INET, SOCK_DGRAM, 0);
395 ifc.ifc_len = sizeof(ifs);
397 if (ioctl(SockFD, SIOCGIFCONF, &ifc) < 0) {
402 ifend = ifs + (ifc.ifc_len / sizeof(struct ifreq));
403 for (ifr = ifc.ifc_req; ifr < ifend; ifr++) {
404 /* if (ifr->ifr_addr.sa_family == AF_INET) */
406 if (strcmp("eth0", ifr->ifr_name) != 0)
408 strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
409 if (ioctl(SockFD, SIOCGIFHWADDR, &ifreq) < 0) {
416 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
419 sprintf(buffer, "%02x-%02x-%02x-%02x-%02x-%02x",
420 ifreq.ifr_hwaddr.sa_data[0]&0xff,
421 ifreq.ifr_hwaddr.sa_data[1]&0xff,
422 ifreq.ifr_hwaddr.sa_data[2]&0xff,
423 ifreq.ifr_hwaddr.sa_data[3]&0xff,
424 ifreq.ifr_hwaddr.sa_data[4]&0xff,
425 ifreq.ifr_hwaddr.sa_data[5]&0xff);
427 Jim_AppendString(interp, tclOutput, buffer, strlen(buffer));
429 Jim_SetResult(interp, tclOutput);
442 static const struct command_registration ioutil_command_handlers[] = {
445 .handler = handle_cat_command,
447 .help = "display text file content",
448 .usage = "file_name",
452 .handler = handle_trunc_command,
454 .help = "truncate a file to zero length",
455 .usage = "file_name",
459 .handler = handle_cp_command,
461 .help = "copy a file",
462 .usage = "src_file_name dst_file_name",
465 .name = "append_file",
466 .handler = handle_append_command,
468 .help = "append a variable number of strings to a file",
469 .usage = "file_name [<string1>, [<string2>, ...]]",
474 .handler = handle_meminfo_command,
476 .help = "display free heap space",
482 .handler = handle_rm_command,
483 .help = "remove a directory or file",
484 .usage = "file_name",
488 * Peek and poke are security holes -- they manipulate
489 * server-internal addresses.
496 .jim_handler = ioutil_Jim_Command_peek,
497 .help = "peek at a memory address",
503 .jim_handler = ioutil_Jim_Command_poke,
504 .help = "poke at a memory address",
505 .usage = "address value",
510 .jim_handler = ioutil_Jim_Command_ls,
511 .help = "show a listing of files",
514 #ifdef HAVE_SYS_IOCTL_H
519 .jim_handler = ioutil_Jim_Command_mac,
520 .help = "show MAC address",
526 .jim_handler = ioutil_Jim_Command_ip,
528 .help = "show IP address",
530 COMMAND_REGISTRATION_DONE
533 int ioutil_init(struct command_context *cmd_ctx)
535 return register_commands(cmd_ctx, NULL, ioutil_command_handlers);