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\n", fileName);
71 if (fseek(pFile, 0, SEEK_END) != 0)
73 LOG_ERROR("Can't open %s\n", fileName);
77 long fsize = ftell(pFile);
80 LOG_ERROR("Can't open %s\n", fileName);
86 if (fseek(pFile, 0, SEEK_SET) != 0)
88 LOG_ERROR("Can't open %s\n", fileName);
92 *data = malloc(*len + 1);
95 LOG_ERROR("Can't open %s\n", fileName);
100 if (fread(*data, 1, *len, pFile)!=*len)
104 LOG_ERROR("Can't open %s\n", 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 %d", CMD_ARGV[0], retval);
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, "Failed: %d", retval);
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);