perform.c revision 93520
1/* 2 * FreeBSD install - a package for the installation and maintainance 3 * of non-core utilities. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * Jordan K. Hubbard 15 * 18 July 1993 16 * 17 * This is the main body of the add module. 18 * 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/usr.sbin/pkg_install/add/perform.c 93520 2002-04-01 09:39:07Z obrien $"); 23 24#include <err.h> 25#include <paths.h> 26#include "lib.h" 27#include "add.h" 28 29#include <libgen.h> 30#include <signal.h> 31#include <sys/wait.h> 32 33static int pkg_do(char *); 34static int sanity_check(char *); 35static char LogDir[FILENAME_MAX]; 36static int zapLogDir; /* Should we delete LogDir? */ 37 38int 39pkg_perform(char **pkgs) 40{ 41 int i, err_cnt = 0; 42 43 signal(SIGINT, cleanup); 44 signal(SIGHUP, cleanup); 45 46 if (AddMode == SLAVE) 47 err_cnt = pkg_do(NULL); 48 else { 49 for (i = 0; pkgs[i]; i++) 50 err_cnt += pkg_do(pkgs[i]); 51 } 52 return err_cnt; 53} 54 55static Package Plist; 56static char *Home; 57 58/* 59 * This is seriously ugly code following. Written very fast! 60 * [And subsequently made even worse.. Sigh! This code was just born 61 * to be hacked, I guess.. :) -jkh] 62 */ 63static int 64pkg_do(char *pkg) 65{ 66 char pkg_fullname[FILENAME_MAX]; 67 char playpen[FILENAME_MAX]; 68 char extract_contents[FILENAME_MAX]; 69 char *where_to, *extract; 70 FILE *cfile; 71 int code; 72 PackingList p; 73 struct stat sb; 74 int inPlace; 75 /* support for separate pre/post install scripts */ 76 int new_m = 0; 77 char pre_script[FILENAME_MAX] = INSTALL_FNAME; 78 char post_script[FILENAME_MAX]; 79 char pre_arg[FILENAME_MAX], post_arg[FILENAME_MAX]; 80 81 code = 0; 82 zapLogDir = 0; 83 LogDir[0] = '\0'; 84 strcpy(playpen, FirstPen); 85 inPlace = 0; 86 87 /* Are we coming in for a second pass, everything already extracted? */ 88 if (!pkg) { 89 fgets(playpen, FILENAME_MAX, stdin); 90 playpen[strlen(playpen) - 1] = '\0'; /* pesky newline! */ 91 if (chdir(playpen) == FAIL) { 92 warnx("pkg_add in SLAVE mode can't chdir to %s", playpen); 93 return 1; 94 } 95 read_plist(&Plist, stdin); 96 where_to = playpen; 97 } 98 /* Nope - do it now */ 99 else { 100 /* Is it an ftp://foo.bar.baz/file.tgz specification? */ 101 if (isURL(pkg)) { 102 if (!(Home = fileGetURL(NULL, pkg))) { 103 warnx("unable to fetch '%s' by URL", pkg); 104 return 1; 105 } 106 where_to = Home; 107 strcpy(pkg_fullname, pkg); 108 cfile = fopen(CONTENTS_FNAME, "r"); 109 if (!cfile) { 110 warnx( 111 "unable to open table of contents file '%s' - not a package?", 112 CONTENTS_FNAME); 113 goto bomb; 114 } 115 read_plist(&Plist, cfile); 116 fclose(cfile); 117 } 118 else { 119 strcpy(pkg_fullname, pkg); /* 120 * Copy for sanity's sake, 121 * could remove pkg_fullname 122 */ 123 if (strcmp(pkg, "-")) { 124 if (stat(pkg_fullname, &sb) == FAIL) { 125 warnx("can't stat package file '%s'", pkg_fullname); 126 goto bomb; 127 } 128 sprintf(extract_contents, "--fast-read %s", CONTENTS_FNAME); 129 extract = extract_contents; 130 } 131 else { 132 extract = NULL; 133 sb.st_size = 100000; /* Make up a plausible average size */ 134 } 135 Home = make_playpen(playpen, sb.st_size * 4); 136 if (!Home) 137 errx(1, "unable to make playpen for %qd bytes", (long long)sb.st_size * 4); 138 where_to = Home; 139 /* Since we can call ourselves recursively, keep notes on where we came from */ 140 if (!getenv("_TOP")) 141 setenv("_TOP", Home, 1); 142 if (unpack(pkg_fullname, extract)) { 143 warnx( 144 "unable to extract table of contents file from '%s' - not a package?", 145 pkg_fullname); 146 goto bomb; 147 } 148 cfile = fopen(CONTENTS_FNAME, "r"); 149 if (!cfile) { 150 warnx( 151 "unable to open table of contents file '%s' - not a package?", 152 CONTENTS_FNAME); 153 goto bomb; 154 } 155 read_plist(&Plist, cfile); 156 fclose(cfile); 157 158 /* Extract directly rather than moving? Oh goodie! */ 159 if (find_plist_option(&Plist, "extract-in-place")) { 160 if (Verbose) 161 printf("Doing in-place extraction for %s\n", pkg_fullname); 162 p = find_plist(&Plist, PLIST_CWD); 163 if (p) { 164 if (!isdir(p->name) && !Fake) { 165 if (Verbose) 166 printf("Desired prefix of %s does not exist, creating..\n", p->name); 167 vsystem("mkdir -p %s", p->name); 168 if (chdir(p->name) == -1) { 169 warn("unable to change directory to '%s'", p->name); 170 goto bomb; 171 } 172 } 173 where_to = p->name; 174 inPlace = 1; 175 } 176 else { 177 warnx( 178 "no prefix specified in '%s' - this is a bad package!", 179 pkg_fullname); 180 goto bomb; 181 } 182 } 183 184 /* 185 * Apply a crude heuristic to see how much space the package will 186 * take up once it's unpacked. I've noticed that most packages 187 * compress an average of 75%, so multiply by 4 for good measure. 188 */ 189 190 if (!inPlace && min_free(playpen) < sb.st_size * 4) { 191 warnx("projected size of %qd exceeds available free space.\n" 192"Please set your PKG_TMPDIR variable to point to a location with more\n" 193 "free space and try again", (long long)sb.st_size * 4); 194 warnx("not extracting %s\ninto %s, sorry!", 195 pkg_fullname, where_to); 196 goto bomb; 197 } 198 199 /* If this is a direct extract and we didn't want it, stop now */ 200 if (inPlace && Fake) 201 goto success; 202 203 /* Finally unpack the whole mess */ 204 if (unpack(pkg_fullname, NULL)) { 205 warnx("unable to extract '%s'!", pkg_fullname); 206 goto bomb; 207 } 208 } 209 210 /* Check for sanity and dependencies */ 211 if (sanity_check(pkg)) 212 goto bomb; 213 214 /* If we're running in MASTER mode, just output the plist and return */ 215 if (AddMode == MASTER) { 216 printf("%s\n", where_playpen()); 217 write_plist(&Plist, stdout); 218 return 0; 219 } 220 } 221 222 /* 223 * If we have a prefix, delete the first one we see and add this 224 * one in place of it. 225 */ 226 if (Prefix) { 227 delete_plist(&Plist, FALSE, PLIST_CWD, NULL); 228 add_plist_top(&Plist, PLIST_CWD, Prefix); 229 } 230 231 setenv(PKG_PREFIX_VNAME, (p = find_plist(&Plist, PLIST_CWD)) ? p->name : ".", 1); 232 /* Protect against old packages with bogus @name fields */ 233 (const char *)PkgName = (p = find_plist(&Plist, PLIST_NAME)) ? p->name : "anonymous"; 234 235 /* See if we're already registered */ 236 sprintf(LogDir, "%s/%s", LOG_DIR, PkgName); 237 if (isdir(LogDir) && !Force) { 238 warnx("package '%s' already recorded as installed", PkgName); 239 code = 1; 240 goto success; /* close enough for government work */ 241 } 242 243 /* Now check the packing list for dependencies */ 244 for (p = Plist.head; p ; p = p->next) { 245 if (p->type != PLIST_PKGDEP) 246 continue; 247 if (Verbose) 248 printf("Package '%s' depends on '%s'.\n", PkgName, p->name); 249 if (vsystem("pkg_info -e %s", p->name)) { 250 char path[FILENAME_MAX], *cp = NULL; 251 252 if (!Fake) { 253 if (!isURL(pkg) && !getenv("PKG_ADD_BASE")) { 254 snprintf(path, FILENAME_MAX, "%s/%s.tgz", getenv("_TOP"), p->name); 255 if (fexists(path)) 256 cp = path; 257 else 258 cp = fileFindByPath(pkg, p->name); 259 if (cp) { 260 if (Verbose) 261 printf("Loading it from %s.\n", cp); 262 if (vsystem("pkg_add %s'%s'", Verbose ? "-v " : "", cp)) { 263 warnx("autoload of dependency '%s' failed%s", 264 cp, Force ? " (proceeding anyway)" : "!"); 265 if (!Force) 266 ++code; 267 } 268 } 269 else { 270 warnx("could not find package %s %s", 271 p->name, Force ? " (proceeding anyway)" : "!"); 272 if (!Force) 273 ++code; 274 } 275 } 276 else if ((cp = fileGetURL(pkg, p->name)) != NULL) { 277 if (Verbose) 278 printf("Finished loading %s over FTP.\n", p->name); 279 if (!fexists("+CONTENTS")) { 280 warnx("autoloaded package %s has no +CONTENTS file?", 281 p->name); 282 if (!Force) 283 ++code; 284 } 285 else if (vsystem("(pwd; cat +CONTENTS) | pkg_add %s-S", Verbose ? "-v " : "")) { 286 warnx("pkg_add of dependency '%s' failed%s", 287 p->name, Force ? " (proceeding anyway)" : "!"); 288 if (!Force) 289 ++code; 290 } 291 else if (Verbose) 292 printf("\t'%s' loaded successfully.\n", p->name); 293 /* Nuke the temporary playpen */ 294 leave_playpen(); 295 } 296 } 297 else { 298 if (Verbose) 299 printf("and was not found%s.\n", Force ? " (proceeding anyway)" : ""); 300 else 301 printf("Package dependency %s for %s not found%s\n", p->name, pkg, 302 Force ? " (proceeding anyway)" : "!"); 303 if (!Force) 304 ++code; 305 } 306 } 307 else if (Verbose) 308 printf(" - already installed.\n"); 309 } 310 311 if (code != 0) 312 goto bomb; 313 314 /* Look for the requirements file */ 315 if (fexists(REQUIRE_FNAME)) { 316 vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */ 317 if (Verbose) 318 printf("Running requirements file first for %s..\n", PkgName); 319 if (!Fake && vsystem("./%s %s INSTALL", REQUIRE_FNAME, PkgName)) { 320 warnx("package %s fails requirements %s", pkg_fullname, 321 Force ? "installing anyway" : "- not installed"); 322 if (!Force) { 323 code = 1; 324 goto success; /* close enough for government work */ 325 } 326 } 327 } 328 329 /* 330 * Test whether to use the old method of passing tokens to installation 331 * scripts, and set appropriate variables.. 332 */ 333 334 if (fexists(POST_INSTALL_FNAME)) { 335 new_m = 1; 336 sprintf(post_script, "%s", POST_INSTALL_FNAME); 337 pre_arg[0] = '\0'; 338 post_arg[0] = '\0'; 339 } else { 340 if (fexists(INSTALL_FNAME)) { 341 sprintf(post_script, "%s", INSTALL_FNAME); 342 sprintf(pre_arg, "PRE-INSTALL"); 343 sprintf(post_arg, "POST-INSTALL"); 344 } 345 } 346 347 /* If we're really installing, and have an installation file, run it */ 348 if (!NoInstall && fexists(pre_script)) { 349 vsystem("chmod +x %s", pre_script); /* make sure */ 350 if (Verbose) 351 printf("Running pre-install for %s..\n", PkgName); 352 if (!Fake && vsystem("./%s %s %s", pre_script, PkgName, pre_arg)) { 353 warnx("install script returned error status"); 354 unlink(pre_script); 355 code = 1; 356 goto success; /* nothing to uninstall yet */ 357 } 358 } 359 360 /* Now finally extract the entire show if we're not going direct */ 361 if (!inPlace && !Fake) 362 extract_plist(".", &Plist); 363 364 if (!Fake && fexists(MTREE_FNAME)) { 365 if (Verbose) 366 printf("Running mtree for %s..\n", PkgName); 367 p = find_plist(&Plist, PLIST_CWD); 368 if (Verbose) 369 printf("mtree -U -f %s -d -e -p %s >%s\n", MTREE_FNAME, p ? p->name : "/", _PATH_DEVNULL); 370 if (!Fake) { 371 if (vsystem("/usr/sbin/mtree -U -f %s -d -e -p %s >%s", MTREE_FNAME, p ? p->name : "/", _PATH_DEVNULL)) 372 warnx("mtree returned a non-zero status - continuing"); 373 } 374 } 375 376 /* Run the installation script one last time? */ 377 if (!NoInstall && fexists(post_script)) { 378 vsystem("chmod +x %s", post_script); /* make sure */ 379 if (Verbose) 380 printf("Running post-install for %s..\n", PkgName); 381 if (!Fake && vsystem("./%s %s %s", post_script, PkgName, post_arg)) { 382 warnx("install script returned error status"); 383 unlink(post_script); 384 code = 1; 385 goto fail; 386 } 387 } 388 389 /* Time to record the deed? */ 390 if (!NoRecord && !Fake) { 391 char contents[FILENAME_MAX]; 392 FILE *contfile; 393 394 if (getuid() != 0) 395 warnx("not running as root - trying to record install anyway"); 396 if (!PkgName) { 397 warnx("no package name! can't record package, sorry"); 398 code = 1; 399 goto success; /* well, partial anyway */ 400 } 401 sprintf(LogDir, "%s/%s", LOG_DIR, PkgName); 402 zapLogDir = 1; 403 if (Verbose) 404 printf("Attempting to record package into %s..\n", LogDir); 405 if (make_hierarchy(LogDir)) { 406 warnx("can't record package into '%s', you're on your own!", 407 LogDir); 408 bzero(LogDir, FILENAME_MAX); 409 code = 1; 410 goto success; /* close enough for government work */ 411 } 412 /* Make sure pkg_info can read the entry */ 413 vsystem("chmod a+rx %s", LogDir); 414 move_file(".", DESC_FNAME, LogDir); 415 move_file(".", COMMENT_FNAME, LogDir); 416 if (fexists(INSTALL_FNAME)) 417 move_file(".", INSTALL_FNAME, LogDir); 418 if (fexists(POST_INSTALL_FNAME)) 419 move_file(".", POST_INSTALL_FNAME, LogDir); 420 if (fexists(DEINSTALL_FNAME)) 421 move_file(".", DEINSTALL_FNAME, LogDir); 422 if (fexists(POST_DEINSTALL_FNAME)) 423 move_file(".", POST_DEINSTALL_FNAME, LogDir); 424 if (fexists(REQUIRE_FNAME)) 425 move_file(".", REQUIRE_FNAME, LogDir); 426 if (fexists(DISPLAY_FNAME)) 427 move_file(".", DISPLAY_FNAME, LogDir); 428 if (fexists(MTREE_FNAME)) 429 move_file(".", MTREE_FNAME, LogDir); 430 sprintf(contents, "%s/%s", LogDir, CONTENTS_FNAME); 431 contfile = fopen(contents, "w"); 432 if (!contfile) { 433 warnx("can't open new contents file '%s'! can't register pkg", 434 contents); 435 goto success; /* can't log, but still keep pkg */ 436 } 437 write_plist(&Plist, contfile); 438 fclose(contfile); 439 for (p = Plist.head; p ; p = p->next) { 440 if (p->type != PLIST_PKGDEP) 441 continue; 442 if (Verbose) 443 printf("Attempting to record dependency on package '%s'\n", p->name); 444 sprintf(contents, "%s/%s/%s", LOG_DIR, basename(p->name), 445 REQUIRED_BY_FNAME); 446 contfile = fopen(contents, "a"); 447 if (!contfile) 448 warnx("can't open dependency file '%s'!\n" 449 "dependency registration is incomplete", contents); 450 else { 451 fprintf(contfile, "%s\n", PkgName); 452 if (fclose(contfile) == EOF) 453 warnx("cannot properly close file %s", contents); 454 } 455 } 456 if (Verbose) 457 printf("Package %s registered in %s\n", PkgName, LogDir); 458 } 459 460 if ((p = find_plist(&Plist, PLIST_DISPLAY)) != NULL) { 461 FILE *fp; 462 char buf[BUFSIZ]; 463 464 snprintf(buf, sizeof buf, "%s/%s", LogDir, p->name); 465 fp = fopen(buf, "r"); 466 if (fp) { 467 putc('\n', stdout); 468 while (fgets(buf, sizeof(buf), fp)) 469 fputs(buf, stdout); 470 putc('\n', stdout); 471 (void) fclose(fp); 472 } else 473 warnx("cannot open %s as display file", buf); 474 } 475 476 goto success; 477 478 bomb: 479 code = 1; 480 goto success; 481 482 fail: 483 /* Nuke the whole (installed) show, XXX but don't clean directories */ 484 if (!Fake) 485 delete_package(FALSE, FALSE, &Plist); 486 487 success: 488 /* delete the packing list contents */ 489 free_plist(&Plist); 490 leave_playpen(); 491 return code; 492} 493 494static int 495sanity_check(char *pkg) 496{ 497 int code = 0; 498 499 if (!fexists(CONTENTS_FNAME)) { 500 warnx("package %s has no CONTENTS file!", pkg); 501 code = 1; 502 } 503 else if (!fexists(COMMENT_FNAME)) { 504 warnx("package %s has no COMMENT file!", pkg); 505 code = 1; 506 } 507 else if (!fexists(DESC_FNAME)) { 508 warnx("package %s has no DESC file!", pkg); 509 code = 1; 510 } 511 return code; 512} 513 514void 515cleanup(int sig) 516{ 517 static int in_cleanup = 0; 518 519 if (!in_cleanup) { 520 in_cleanup = 1; 521 if (sig) 522 printf("Signal %d received, cleaning up..\n", sig); 523 if (!Fake && zapLogDir && LogDir[0]) 524 vsystem("%s -rf %s", REMOVE_CMD, LogDir); 525 leave_playpen(); 526 } 527 if (sig) 528 exit(1); 529} 530