dispatch.c revision 46117
1/* 2 * The new sysinstall program. 3 * 4 * This is probably the last program in the `sysinstall' line - the next 5 * generation being essentially a complete rewrite. 6 * 7 * $Id: dispatch.c,v 1.28 1999/04/24 01:53:54 jkh Exp $ 8 * 9 * Copyright (c) 1995 10 * Jordan Hubbard. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer, 17 * verbatim and that no modifications are made prior to this 18 * point in the file. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37#include "sysinstall.h" 38#include <ctype.h> 39#include <errno.h> 40#include <sys/signal.h> 41#include <sys/fcntl.h> 42 43#include "list.h" 44 45static int dispatch_shutdown(dialogMenuItem *unused); 46static int dispatch_systemExecute(dialogMenuItem *unused); 47static int dispatch_msgConfirm(dialogMenuItem *unused); 48 49static struct _word { 50 char *name; 51 int (*handler)(dialogMenuItem *self); 52} resWords[] = { 53 { "configAnonFTP", configAnonFTP }, 54 { "configRouter", configRouter }, 55 { "configNFSServer", configNFSServer }, 56 { "configNTP", configNTP }, 57 { "configPCNFSD", configPCNFSD }, 58 { "configPackages", configPackages }, 59 { "configUsers", configUsers }, 60 { "configXSetup", configXSetup }, 61 { "configXDesktop", configXDesktop }, 62 { "diskPartitionEditor", diskPartitionEditor }, 63 { "diskPartitionWrite", diskPartitionWrite }, 64 { "diskLabelEditor", diskLabelEditor }, 65 { "diskLabelCommit", diskLabelCommit }, 66 { "distReset", distReset }, 67 { "distSetCustom", distSetCustom }, 68 { "distSetDeveloper", distSetDeveloper }, 69 { "distSetXDeveloper", distSetXDeveloper }, 70 { "distSetKernDeveloper", distSetKernDeveloper }, 71 { "distSetUser", distSetUser }, 72 { "distSetXUser", distSetXUser }, 73 { "distSetMinimum", distSetMinimum }, 74 { "distSetEverything", distSetEverything }, 75 { "distSetDES", distSetDES }, 76 { "distSetSrc", distSetSrc }, 77 { "distSetXF86", distSetXF86 }, 78 { "distExtractAll", distExtractAll }, 79 { "docBrowser", docBrowser }, 80 { "docShowDocument", docShowDocument }, 81 { "installCommit", installCommit }, 82 { "installExpress", installExpress }, 83 { "installNovice", installNovice }, 84 { "installUpgrade", installUpgrade }, 85 { "installFixupBin", installFixupBin }, 86 { "installFixupXFree", installFixupXFree }, 87 { "installFixitHoloShell", installFixitHoloShell }, 88 { "installFixitCDROM", installFixitCDROM }, 89 { "installFixitFloppy", installFixitFloppy }, 90 { "installFilesystems", installFilesystems }, 91 { "installVarDefaults", installVarDefaults }, 92 { "loadConfig", dispatch_load_file }, 93 { "loadFloppyConfig", dispatch_load_floppy }, 94 { "mediaSetCDROM", mediaSetCDROM }, 95 { "mediaSetFloppy", mediaSetFloppy }, 96 { "mediaSetDOS", mediaSetDOS }, 97 { "mediaSetTape", mediaSetTape }, 98 { "mediaSetFTP", mediaSetFTP }, 99 { "mediaSetFTPActive", mediaSetFTPActive }, 100 { "mediaSetFTPPassive", mediaSetFTPPassive }, 101 { "mediaSetUFS", mediaSetUFS }, 102 { "mediaSetNFS", mediaSetNFS }, 103 { "mediaSetFTPUserPass", mediaSetFTPUserPass }, 104 { "mediaSetCPIOVerbosity", mediaSetCPIOVerbosity }, 105 { "mediaGetType", mediaGetType }, 106 { "msgConfirm", dispatch_msgConfirm }, 107 { "optionsEditor", optionsEditor }, 108 { "packageAdd", packageAdd }, 109 { "addGroup", userAddGroup }, 110 { "addUser", userAddUser }, 111 { "shutdown", dispatch_shutdown }, 112 { "system", dispatch_systemExecute }, 113 { "dumpVariables", dump_variables }, 114 { "tcpMenuSelect", tcpMenuSelect }, 115 { NULL, NULL }, 116}; 117 118/* 119 * Helper routines for buffering data. 120 * 121 * We read an entire configuration into memory before executing it 122 * so that we are truely standalone and can do things like nuke the 123 * file or disk we're working on. 124 */ 125 126typedef struct command_buffer_ { 127 qelement queue; 128 char * string; 129} command_buffer; 130 131static void 132dispatch_free_command(command_buffer *item) 133{ 134 REMQUE(item); 135 free(item->string); 136 free(item); 137} 138 139static void 140dispatch_free_all(qelement *head) 141{ 142 command_buffer *item; 143 144 while (!EMPTYQUE(*head)) { 145 item = (command_buffer *) head->q_forw; 146 dispatch_free_command(item); 147 } 148} 149 150static command_buffer * 151dispatch_add_command(qelement *head, char *string) 152{ 153 command_buffer *new; 154 155 new = malloc(sizeof(command_buffer)); 156 157 if (!new) 158 return NULL; 159 160 new->string = strdup(string); 161 INSQUEUE(new, head->q_back); 162 163 return new; 164} 165 166/* 167 * Command processing 168 */ 169 170/* Just convenience */ 171static int 172dispatch_shutdown(dialogMenuItem *unused) 173{ 174 systemShutdown(0); 175 return DITEM_FAILURE; 176} 177 178static int 179dispatch_systemExecute(dialogMenuItem *unused) 180{ 181 char *cmd = variable_get(VAR_COMMAND); 182 183 if (cmd) 184 return systemExecute(cmd) ? DITEM_FAILURE : DITEM_SUCCESS; 185 else 186 msgDebug("_systemExecute: No command passed in `command' variable.\n"); 187 return DITEM_FAILURE; 188} 189 190static int 191dispatch_msgConfirm(dialogMenuItem *unused) 192{ 193 char *msg = variable_get(VAR_COMMAND); 194 195 if (msg) { 196 msgConfirm(msg); 197 return DITEM_SUCCESS; 198 } 199 200 msgDebug("_msgConfirm: No message passed in `command' variable.\n"); 201 return DITEM_FAILURE; 202} 203 204static int 205call_possible_resword(char *name, dialogMenuItem *value, int *status) 206{ 207 int i, rval; 208 209 rval = 0; 210 for (i = 0; resWords[i].name; i++) { 211 if (!strcmp(name, resWords[i].name)) { 212 *status = resWords[i].handler(value); 213 rval = 1; 214 break; 215 } 216 } 217 return rval; 218} 219 220/* For a given string, call it or spit out an undefined command diagnostic */ 221int 222dispatchCommand(char *str) 223{ 224 int i; 225 char *cp; 226 227 if (!str || !*str) { 228 msgConfirm("Null or zero-length string passed to dispatchCommand"); 229 return DITEM_FAILURE; 230 } 231 /* If it's got a newline, trim it */ 232 if ((cp = index(str, '\n')) != NULL) 233 *cp = '\0'; 234 235 /* If it's got a `=' sign in there, assume it's a variable setting */ 236 if (index(str, '=')) { 237 if (isDebug()) 238 msgDebug("dispatch: setting variable `%s'\n", str); 239 variable_set(str, 0); 240 i = DITEM_SUCCESS; 241 } 242 else { 243 /* A command might be a pathname if it's encoded in argv[0], which 244 we also support */ 245 if ((cp = rindex(str, '/')) != NULL) 246 str = cp + 1; 247 if (isDebug()) 248 msgDebug("dispatch: calling resword `%s'\n", str); 249 if (!call_possible_resword(str, NULL, &i)) { 250 msgNotify("Warning: No such command ``%s''", str); 251 i = DITEM_FAILURE; 252 } 253 } 254 return i; 255} 256 257 258/* 259 * File processing 260 */ 261 262static qelement * 263dispatch_load_fp(FILE *fp) 264{ 265 qelement *head; 266 char buf[BUFSIZ], *cp; 267 268 head = malloc(sizeof(qelement)); 269 270 if (!head) 271 return NULL; 272 273 INITQUE(*head); 274 275 while (fgets(buf, sizeof buf, fp)) { 276 277 if ((cp = strchr(buf, '\n')) != NULL) 278 *cp = '\0'; 279 if (*buf == '\0' || *buf == '#') 280 continue; 281 282 if (!dispatch_add_command(head, buf)) 283 return NULL; 284 } 285 286 return head; 287} 288 289static int 290dispatch_execute(qelement *head) 291{ 292 int result = DITEM_SUCCESS; 293 command_buffer *item; 294 char *old_interactive; 295 296 if (!head) 297 return result | DITEM_FAILURE; 298 299 old_interactive = variable_get(VAR_NONINTERACTIVE); 300 if (old_interactive) 301 old_interactive = strdup(old_interactive); /* save copy */ 302 303 /* Hint to others that we're running from a script, should they care */ 304 variable_set2(VAR_NONINTERACTIVE, "yes", 0); 305 306 while (!EMPTYQUE(*head)) { 307 item = (command_buffer *) head->q_forw; 308 309 if (DITEM_STATUS(dispatchCommand(item->string)) != DITEM_SUCCESS) { 310 /* 311 * Allow a user to prefix a command with "noError" to cause 312 * us to ignore any errors for that one command. 313 */ 314 if (variable_get(VAR_NO_ERROR)) 315 variable_unset(VAR_NO_ERROR); 316 else { 317 msgConfirm("Command `%s' failed - rest of script aborted.\n", 318 item->string); 319 result |= DITEM_FAILURE; 320 break; 321 } 322 } 323 dispatch_free_command(item); 324 } 325 326 dispatch_free_all(head); 327 328 if (!old_interactive) 329 variable_unset(VAR_NONINTERACTIVE); 330 else { 331 variable_set2(VAR_NONINTERACTIVE, old_interactive, 0); 332 free(old_interactive); 333 } 334 335 return result; 336} 337 338int 339dispatch_load_file_int(int quiet) 340{ 341 FILE *fp; 342 char *cp; 343 int i; 344 qelement *list; 345 346 static const char *names[] = { 347 "install.cfg", 348 "/stand/install.cfg", 349 "/tmp/install.cfg", 350 NULL 351 }; 352 353 fp = NULL; 354 cp = variable_get(VAR_CONFIG_FILE); 355 if (!cp) { 356 for (i = 0; names[i]; i++) 357 if ((fp = fopen(names[i], "r")) != NULL) 358 break; 359 } else 360 fp = fopen(cp, "r"); 361 362 if (!fp) { 363 if (!quiet) 364 msgConfirm("Unable to open %s: %s", cp, strerror(errno)); 365 return DITEM_FAILURE; 366 } 367 368 list = dispatch_load_fp(fp); 369 fclose(fp); 370 371 return dispatch_execute(list); 372} 373 374int 375dispatch_load_file(dialogMenuItem *self) 376{ 377 return dispatch_load_file_int(FALSE); 378} 379 380int 381dispatch_load_floppy(dialogMenuItem *self) 382{ 383 int what = DITEM_RESTORE | DITEM_SUCCESS; 384 extern char *distWanted; 385 char *cp; 386 FILE *fp; 387 qelement *list; 388 389 mediaClose(); 390 dialog_clear_norefresh(); 391 392 cp = variable_get_value(VAR_INSTALL_CFG, 393 "Specify the name of a configuration file\n" 394 "residing on a MSDOS or UFS floppy.", 0); 395 if (!cp || !*cp) { 396 variable_unset(VAR_INSTALL_CFG); 397 what |= DITEM_FAILURE; 398 return what; 399 } 400 401 distWanted = cp; 402 /* Try to open the floppy drive */ 403 if (DITEM_STATUS(mediaSetFloppy(NULL)) == DITEM_FAILURE) { 404 msgConfirm("Unable to set media device to floppy."); 405 what |= DITEM_FAILURE; 406 mediaClose(); 407 return what; 408 } 409 410 if (!mediaDevice->init(mediaDevice)) { 411 msgConfirm("Unable to mount floppy filesystem."); 412 what |= DITEM_FAILURE; 413 mediaClose(); 414 return what; 415 } 416 417 fp = mediaDevice->get(mediaDevice, cp, TRUE); 418 if (fp) { 419 list = dispatch_load_fp(fp); 420 fclose(fp); 421 mediaClose(); 422 423 what |= dispatch_execute(list); 424 } 425 else { 426 if (!variable_get(VAR_NO_ERROR)) 427 msgConfirm("Configuration file '%s' not found.", cp); 428 variable_unset(VAR_INSTALL_CFG); 429 what |= DITEM_FAILURE; 430 mediaClose(); 431 } 432 433 return what; 434} 435 436