src/helper/ioutil.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
   3  *                                                                         *
   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.                                   *
   8  *                                                                         *
   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.                          *
  13  *                                                                         *
  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  ***************************************************************************/
  19
  20 /* this file contains various functionality useful to standalone systems */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include "log.h"
  27 #include "time_support.h"
  28
  29 #ifdef HAVE_ARPA_INET_H
  30 #include <arpa/inet.h>
  31 #endif
  32 #ifdef HAVE_DIRENT_H
  33 #include <dirent.h>
  34 #endif
  35 #ifdef HAVE_NETDB_H
  36 #include <netdb.h>
  37 #endif
  38 #ifdef HAVE_NET_IF_H
  39 #include <net/if.h>
  40 #endif
  41 //#ifdef HAVE_NETINET_TCP_H
  42 //#include <netinet/tcp.h>
  43 //#endif
  44 #ifdef HAVE_SYS_IOCTL_H
  45 #include <sys/ioctl.h>
  46 #endif
  47 #ifdef HAVE_SYS_STAT_H
  48 #include <sys/stat.h>
  49 #endif
  50 #ifdef HAVE_IFADDRS_H
  51 #include <ifaddrs.h>
  52 #endif
  53 #ifdef HAVE_MALLOC_H
  54 #if !BUILD_ECOSBOARD
  55 #include <malloc.h>
  56 #endif
  57 #endif
  58 //#ifdef HAVE_STRINGS_H
  59 //#include <strings.h>
  60 //#endif
  61
  62
  63 int handle_rm_command(struct command_context_s *cmd_ctx, char *cmd,
  64                 char **args, int argc)
  65 {
  66         if (argc != 1)
  67         {
  68                 command_print(cmd_ctx, "rm <filename>");
  69                 return ERROR_INVALID_ARGUMENTS;
  70         }
  71
  72         if (unlink(args[0]) != 0)
  73         {
  74                 command_print(cmd_ctx, "failed: %d", errno);
  75         }
  76
  77         return ERROR_OK;
  78 }
  79
  80
  81 /* loads a file and returns a pointer to it in memory. The file contains
  82  * a 0 byte(sentinel) after len bytes - the length of the file. */
  83 int loadFile(const char *fileName, void **data, size_t *len)
  84 {
  85         // ensure returned length is always sane
  86         *len = 0;
  87
  88         FILE * pFile;
  89         pFile = fopen(fileName,"rb");
  90         if (pFile==NULL)
  91         {
  92                 LOG_ERROR("Can't open %s\n", fileName);
  93                 return ERROR_FAIL;
  94         }
  95         if (fseek(pFile, 0, SEEK_END)!=0)
  96         {
  97                 LOG_ERROR("Can't open %s\n", fileName);
  98                 fclose(pFile);
  99                 return ERROR_FAIL;
 100         }
 101         long fsize = ftell(pFile);
 102         if (fsize == -1)
 103         {
 104                 LOG_ERROR("Can't open %s\n", fileName);
 105                 fclose(pFile);
 106                 return ERROR_FAIL;
 107         }
 108         *len = fsize;
 109
 110         if (fseek(pFile, 0, SEEK_SET)!=0)
 111         {
 112                 LOG_ERROR("Can't open %s\n", fileName);
 113                 fclose(pFile);
 114                 return ERROR_FAIL;
 115         }
 116         *data = malloc(*len + 1);
 117         if (*data==NULL)
 118         {
 119                 LOG_ERROR("Can't open %s\n", fileName);
 120                 fclose(pFile);
 121                 return ERROR_FAIL;
 122         }
 123
 124         if (fread(*data, 1, *len, pFile)!=*len)
 125         {
 126                 fclose(pFile);
 127                 free(*data);
 128                 LOG_ERROR("Can't open %s\n", fileName);
 129                 return ERROR_FAIL;
 130         }
 131         fclose(pFile);
 132
 133         // 0-byte after buffer (not included in *len) serves as a sentinel
 134         char *buf = (char *)*data;
 135         buf[*len] = 0;
 136
 137         return ERROR_OK;
 138 }
 139
 140
 141
 142 int handle_cat_command(struct command_context_s *cmd_ctx, char *cmd,
 143                 char **args, int argc)
 144 {
 145         if (argc != 1)
 146         {
 147                 command_print(cmd_ctx, "cat <filename>");
 148                 return ERROR_INVALID_ARGUMENTS;
 149         }
 150
 151         // NOTE!!! we only have line printing capability so we print the entire file as a single line.
 152         void *data;
 153         size_t len;
 154
 155         int retval = loadFile(args[0], &data, &len);
 156         if (retval == ERROR_OK)
 157         {
 158                 command_print(cmd_ctx, "%s", data);
 159                 free(data);
 160         }
 161         else
 162         {
 163                 command_print(cmd_ctx, "%s not found %d", args[0], retval);
 164         }
 165
 166         return ERROR_OK;
 167 }
 168 int handle_trunc_command(struct command_context_s *cmd_ctx, char *cmd,
 169                 char **args, int argc)
 170 {
 171         if (argc != 1)
 172         {
 173                 command_print(cmd_ctx, "trunc <filename>");
 174                 return ERROR_INVALID_ARGUMENTS;
 175         }
 176
 177         FILE *config_file = NULL;
 178         config_file = fopen(args[0], "w");
 179         if (config_file != NULL)
 180                 fclose(config_file);
 181
 182         return ERROR_OK;
 183 }
 184
 185
 186 int handle_meminfo_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 187 {
 188         static int prev = 0;
 189         struct mallinfo info;
 190
 191         if (argc != 0)
 192         {
 193                 command_print(cmd_ctx, "meminfo");
 194                 return ERROR_INVALID_ARGUMENTS;
 195         }
 196
 197         info = mallinfo();
 198
 199         if (prev > 0)
 200         {
 201                 command_print(cmd_ctx, "Diff:            %d", prev - info.fordblks);
 202         }
 203         prev = info.fordblks;
 204
 205         command_print(cmd_ctx, "Available ram:   %d", info.fordblks );
 206
 207         return ERROR_OK;
 208 }
 209
 210
 211 int handle_append_command(struct command_context_s *cmd_ctx, char *cmd,
 212                 char **args, int argc)
 213 {
 214         if (argc < 1)
 215         {
 216                 command_print(cmd_ctx,
 217                                 "append <filename> [<string1>, [<string2>, ...]]");
 218                 return ERROR_INVALID_ARGUMENTS;
 219         }
 220
 221         FILE *config_file = NULL;
 222         config_file = fopen(args[0], "a");
 223         if (config_file != NULL)
 224         {
 225                 int i;
 226                 fseek(config_file, 0, SEEK_END);
 227
 228                 for (i = 1; i < argc; i++)
 229                 {
 230                         fwrite(args[i], strlen(args[i]), 1, config_file);
 231                         if (i != argc - 1)
 232                         {
 233                                 fwrite(" ", 1, 1, config_file);
 234                         }
 235                 }
 236                 fwrite("\n", 1, 1, config_file);
 237                 fclose(config_file);
 238         }
 239
 240         return ERROR_OK;
 241 }
 242
 243
 244
 245 int handle_cp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 246 {
 247         if (argc != 2)
 248         {
 249                 return ERROR_INVALID_ARGUMENTS;
 250         }
 251
 252         // NOTE!!! we only have line printing capability so we print the entire file as a single line.
 253         void *data;
 254         size_t len;
 255
 256         int retval = loadFile(args[0], &data, &len);
 257         if (retval != ERROR_OK)
 258                 return retval;
 259
 260         FILE *f = fopen(args[1], "wb");
 261         if (f == NULL)
 262                 retval = ERROR_INVALID_ARGUMENTS;
 263
 264         size_t pos = 0;
 265         for (;;)
 266         {
 267                 size_t chunk = len - pos;
 268                 static const size_t maxChunk = 512 * 1024; // ~1/sec
 269                 if (chunk > maxChunk)
 270                 {
 271                         chunk = maxChunk;
 272                 }
 273
 274                 if ((retval==ERROR_OK)&&(fwrite(((char *)data)+pos, 1, chunk, f)!=chunk))
 275                         retval = ERROR_INVALID_ARGUMENTS;
 276
 277                 if (retval != ERROR_OK)
 278                 {
 279                         break;
 280                 }
 281
 282                 command_print(cmd_ctx, "%d", len - pos);
 283
 284                 pos += chunk;
 285
 286                 if (pos == len)
 287                         break;
 288         }
 289
 290         if (retval == ERROR_OK)
 291         {
 292                 command_print(cmd_ctx, "Copied %s to %s", args[0], args[1]);
 293         } else
 294         {
 295                 command_print(cmd_ctx, "Failed: %d", retval);
 296         }
 297
 298         if (data != NULL)
 299                 free(data);
 300         if (f != NULL)
 301                 fclose(f);
 302
 303         if (retval != ERROR_OK)
 304                 unlink(args[1]);
 305
 306         return retval;
 307 }
 308
 309
 310
 311
 312 #define SHOW_RESULT(a, b) LOG_ERROR(#a " failed %d\n", (int)b)
 313
 314 #define IOSIZE 512
 315 void copyfile(char *name2, char *name1)
 316 {
 317
 318         int err;
 319         char buf[IOSIZE];
 320         int fd1, fd2;
 321         ssize_t done, wrote;
 322
 323         fd1 = open(name1, O_WRONLY | O_CREAT);
 324         if (fd1 < 0)
 325                 SHOW_RESULT( open, fd1 );
 326
 327         fd2 = open(name2, O_RDONLY);
 328         if (fd2 < 0)
 329                 SHOW_RESULT( open, fd2 );
 330
 331         for (;;)
 332         {
 333                 done = read(fd2, buf, IOSIZE );
 334                 if (done < 0)
 335                 {
 336                         SHOW_RESULT( read, done );
 337                         break;
 338                 }
 339
 340         if( done == 0 ) break;
 341
 342                 wrote = write(fd1, buf, done);
 343         if( wrote != done ) SHOW_RESULT( write, wrote );
 344
 345         if( wrote != done ) break;
 346         }
 347
 348         err = close(fd1);
 349     if( err < 0 ) SHOW_RESULT( close, err );
 350
 351         err = close(fd2);
 352     if( err < 0 ) SHOW_RESULT( close, err );
 353
 354 }
 355
 356 /* utility fn to copy a directory */
 357 void copydir(char *name, char *destdir)
 358 {
 359         int err;
 360         DIR *dirp;
 361
 362         dirp = opendir(destdir);
 363         if (dirp==NULL)
 364         {
 365                 mkdir(destdir, 0777);
 366         } else
 367         {
 368                 err = closedir(dirp);
 369         }
 370
 371         dirp = opendir(name);
 372     if( dirp == NULL ) SHOW_RESULT( opendir, -1 );
 373
 374         for (;;)
 375         {
 376                 struct dirent *entry = readdir(dirp);
 377
 378                 if (entry == NULL)
 379                         break;
 380
 381                 if (strcmp(entry->d_name, ".") == 0)
 382                         continue;
 383                 if (strcmp(entry->d_name, "..") == 0)
 384                         continue;
 385
 386                 int isDir = 0;
 387                 struct stat buf;
 388                 char fullPath[PATH_MAX];
 389                 strncpy(fullPath, name, PATH_MAX);
 390                 strcat(fullPath, "/");
 391                 strncat(fullPath, entry->d_name, PATH_MAX - strlen(fullPath));
 392
 393                 if (stat(fullPath, &buf) == -1)
 394                 {
 395                         LOG_ERROR("unable to read status from %s", fullPath);
 396                         break;
 397                 }
 398                 isDir = S_ISDIR(buf.st_mode) != 0;
 399
 400                 if (isDir)
 401                         continue;
 402
 403                 //        diag_printf("<INFO>: entry %14s",entry->d_name);
 404                 char fullname[PATH_MAX];
 405                 char fullname2[PATH_MAX];
 406
 407                 strcpy(fullname, name);
 408                 strcat(fullname, "/");
 409                 strcat(fullname, entry->d_name);
 410
 411                 strcpy(fullname2, destdir);
 412                 strcat(fullname2, "/");
 413                 strcat(fullname2, entry->d_name);
 414                 //        diag_printf("from %s to %s\n", fullname, fullname2);
 415                 copyfile(fullname, fullname2);
 416
 417                 //       diag_printf("\n");
 418         }
 419
 420         err = closedir(dirp);
 421     if( err < 0 ) SHOW_RESULT( stat, err );
 422 }
 423
 424
 425
 426
 427 static int
 428 zylinjtag_Jim_Command_rm(Jim_Interp *interp,
 429                                    int argc,
 430                 Jim_Obj * const *argv)
 431 {
 432         int del;
 433         if (argc != 2)
 434         {
 435                 Jim_WrongNumArgs(interp, 1, argv, "rm ?dirorfile?");
 436                 return JIM_ERR;
 437         }
 438
 439         del = 0;
 440         if (unlink(Jim_GetString(argv[1], NULL)) == 0)
 441                 del = 1;
 442         if (rmdir(Jim_GetString(argv[1], NULL)) == 0)
 443                 del = 1;
 444
 445         return del ? JIM_OK : JIM_ERR;
 446 }
 447
 448
 449 static int
 450 zylinjtag_Jim_Command_ls(Jim_Interp *interp,
 451                                    int argc,
 452                 Jim_Obj * const *argv)
 453 {
 454         if (argc != 2)
 455         {
 456                 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
 457                 return JIM_ERR;
 458         }
 459
 460         char *name = (char*) Jim_GetString(argv[1], NULL);
 461
 462         DIR *dirp = NULL;
 463         dirp = opendir(name);
 464         if (dirp == NULL)
 465         {
 466                 return JIM_ERR;
 467         }
 468         Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
 469
 470         for (;;)
 471         {
 472                 struct dirent *entry = NULL;
 473                 entry = readdir(dirp);
 474                 if (entry == NULL)
 475                         break;
 476
 477                 if ((strcmp(".", entry->d_name)==0)||(strcmp("..", entry->d_name)==0))
 478                         continue;
 479
 480         Jim_ListAppendElement(interp, objPtr, Jim_NewStringObj(interp, entry->d_name, strlen(entry->d_name)));
 481         }
 482         closedir(dirp);
 483
 484         Jim_SetResult(interp, objPtr);
 485
 486         return JIM_OK;
 487 }
 488
 489 int handle_peek_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 490 {
 491         if (argc != 1)
 492         {
 493                 return ERROR_COMMAND_SYNTAX_ERROR;
 494         }
 495         unsigned long addr = strtoul(args[0], NULL, 0);
 496         volatile unsigned *address = (volatile unsigned *)addr;
 497         unsigned value = *address;
 498         command_print(cmd_ctx, "0x%x : 0x%x", address, value);
 499         return ERROR_OK;
 500 }
 501
 502 int handle_poke_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 503 {
 504         if (argc != 2)
 505         {
 506                 return ERROR_INVALID_ARGUMENTS;
 507         }
 508         unsigned long addr = strtoul(args[0], NULL, 0);
 509         volatile int *address = (volatile int *)addr;
 510         int value=strtoul(args[1], NULL, 0);
 511         *address=value;
 512         return ERROR_OK;
 513 }
 514
 515 static int
 516 zylinjtag_Jim_Command_peek(Jim_Interp *interp,
 517                                    int argc,
 518                 Jim_Obj * const *argv)
 519 {
 520         if (argc != 2)
 521         {
 522                 Jim_WrongNumArgs(interp, 1, argv, "peek ?address?");
 523                 return JIM_ERR;
 524         }
 525
 526         long address;
 527         if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
 528                 return JIM_ERR;
 529
 530         int value = *((volatile int *) address);
 531
 532         Jim_SetResult(interp, Jim_NewIntObj(interp, value));
 533
 534         return JIM_OK;
 535 }
 536
 537 static int
 538 zylinjtag_Jim_Command_poke(Jim_Interp *interp,
 539                                    int argc,
 540                 Jim_Obj * const *argv)
 541 {
 542         if (argc != 3)
 543         {
 544                 Jim_WrongNumArgs(interp, 1, argv, "poke ?address? ?value?");
 545                 return JIM_ERR;
 546         }
 547
 548         long address;
 549         if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
 550                 return JIM_ERR;
 551         long value;
 552         if (Jim_GetLong(interp, argv[2], &value) != JIM_OK)
 553                 return JIM_ERR;
 554
 555         *((volatile int *) address) = value;
 556
 557         return JIM_OK;
 558 }
 559
 560
 561 /* not so pretty code to fish out ip number*/
 562 static int zylinjtag_Jim_Command_ip(Jim_Interp *interp, int argc,
 563                 Jim_Obj * const *argv)
 564 {
 565 #if !defined(__CYGWIN__)
 566         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 567
 568         struct ifaddrs *ifa = NULL, *ifp = NULL;
 569
 570         if (getifaddrs(&ifp) < 0)
 571         {
 572                 return JIM_ERR;
 573         }
 574
 575         for (ifa = ifp; ifa; ifa = ifa->ifa_next)
 576         {
 577                 char ip[200];
 578                 socklen_t salen;
 579
 580                 if (ifa->ifa_addr->sa_family == AF_INET)
 581                         salen = sizeof(struct sockaddr_in);
 582                 else if (ifa->ifa_addr->sa_family == AF_INET6)
 583                         salen = sizeof(struct sockaddr_in6);
 584                 else
 585                         continue;
 586
 587                 if (getnameinfo(ifa->ifa_addr, salen, ip, sizeof(ip), NULL, 0,
 588                                 NI_NUMERICHOST) < 0)
 589                 {
 590                         continue;
 591                 }
 592
 593                 Jim_AppendString(interp, tclOutput, ip, strlen(ip));
 594                 break;
 595
 596         }
 597
 598         freeifaddrs(ifp);
 599 #else
 600         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "fixme!!!", 0);
 601         LOG_ERROR("NOT IMPLEMENTED!!!");
 602 #endif
 603         Jim_SetResult(interp, tclOutput);
 604
 605         return JIM_OK;
 606 }
 607
 608 /* not so pretty code to fish out eth0 mac address */
 609 static int zylinjtag_Jim_Command_mac(Jim_Interp *interp, int argc,
 610                 Jim_Obj * const *argv)
 611 {
 612
 613
 614         struct ifreq *ifr, *ifend;
 615         struct ifreq ifreq;
 616         struct ifconf ifc;
 617         struct ifreq ifs[5];
 618         int SockFD;
 619
 620         SockFD = socket(AF_INET, SOCK_DGRAM, 0);
 621         if (SockFD < 0)
 622         {
 623                 return JIM_ERR;
 624         }
 625
 626         ifc.ifc_len = sizeof(ifs);
 627         ifc.ifc_req = ifs;
 628         if (ioctl(SockFD, SIOCGIFCONF, &ifc) < 0)
 629         {
 630                 close(SockFD);
 631                 return JIM_ERR;
 632         }
 633
 634         ifend = ifs + (ifc.ifc_len / sizeof(struct ifreq));
 635         for (ifr = ifc.ifc_req; ifr < ifend; ifr++)
 636         {
 637                 //if (ifr->ifr_addr.sa_family == AF_INET)
 638                 {
 639                         if (strcmp("eth0", ifr->ifr_name)!=0)
 640                                 continue;
 641                         strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
 642                         if (ioctl(SockFD, SIOCGIFHWADDR, &ifreq) < 0)
 643                         {
 644                                 close(SockFD);
 645                                 return JIM_ERR;
 646                         }
 647
 648                         close(SockFD);
 649
 650
 651                         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 652
 653                         char buffer[256];
 654                         sprintf(buffer, "%02x-%02x-%02x-%02x-%02x-%02x",
 655                                         ifreq.ifr_hwaddr.sa_data[0]&0xff,
 656                                         ifreq.ifr_hwaddr.sa_data[1]&0xff,
 657                                         ifreq.ifr_hwaddr.sa_data[2]&0xff,
 658                                         ifreq.ifr_hwaddr.sa_data[3]&0xff,
 659                                         ifreq.ifr_hwaddr.sa_data[4]&0xff,
 660                                         ifreq.ifr_hwaddr.sa_data[5]&0xff);
 661
 662                         Jim_AppendString(interp, tclOutput, buffer, strlen(buffer));
 663
 664                         Jim_SetResult(interp, tclOutput);
 665
 666                         return JIM_OK;
 667                 }
 668         }
 669         close(SockFD);
 670
 671         return JIM_ERR;
 672
 673 }
 674
 675
 676
 677 int ioutil_init(struct command_context_s *cmd_ctx)
 678 {
 679         register_command(cmd_ctx, NULL, "rm", handle_rm_command, COMMAND_ANY,
 680                         "remove file");
 681
 682         register_command(cmd_ctx, NULL, "cat", handle_cat_command, COMMAND_ANY,
 683                         "display file content");
 684
 685         register_command(cmd_ctx, NULL, "trunc", handle_trunc_command, COMMAND_ANY,
 686                         "truncate a file to 0 size");
 687
 688         register_command(cmd_ctx, NULL, "cp", handle_cp_command,
 689                                          COMMAND_ANY, "copy a file <from> <to>");
 690
 691         register_command(cmd_ctx, NULL, "append_file", handle_append_command,
 692                         COMMAND_ANY, "append a variable number of strings to a file");
 693
 694         register_command(cmd_ctx, NULL, "meminfo", handle_meminfo_command,
 695                         COMMAND_ANY, "display available ram memory");
 696
 697     Jim_CreateCommand(interp, "rm", zylinjtag_Jim_Command_rm, NULL, NULL);
 698
 699     Jim_CreateCommand(interp, "peek", zylinjtag_Jim_Command_peek, NULL, NULL);
 700     Jim_CreateCommand(interp, "poke", zylinjtag_Jim_Command_poke, NULL, NULL);
 701     Jim_CreateCommand(interp, "ls", zylinjtag_Jim_Command_ls, NULL, NULL);
 702
 703         Jim_CreateCommand(interp, "mac", zylinjtag_Jim_Command_mac,
 704                         NULL, NULL);
 705
 706         Jim_CreateCommand(interp, "ip", zylinjtag_Jim_Command_ip,
 707                         NULL, NULL);
 708
 709     return ERROR_OK;
 710 }
 711
 712