perform.c revision 78118
1#ifndef lint 2static const char rcsid[] = 3 "$FreeBSD: head/usr.sbin/pkg_install/add/perform.c 78118 2001-06-11 23:27:42Z jkh $"; 4#endif 5 6/* 7 * FreeBSD install - a package for the installation and maintainance 8 * of non-core utilities. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * Jordan K. Hubbard 20 * 18 July 1993 21 * 22 * This is the main body of the add module. 23 * 24 */ 25 26#include <err.h> 27#include <paths.h> 28#include "lib.h" 29#include "add.h" 30 31#include <signal.h> 32#include <sys/wait.h> 33 34static int pkg_do(char *); 35static int sanity_check(char *); 36static char LogDir[FILENAME_MAX]; 37static int zapLogDir; /* Should we delete LogDir? */ 38 39int 40pkg_perform(char **pkgs) 41{ 42 int i, err_cnt = 0; 43 44 signal(SIGINT, cleanup); 45 signal(SIGHUP, cleanup); 46 47 if (AddMode == SLAVE) 48 err_cnt = pkg_do(NULL); 49 else { 50 for (i = 0; pkgs[i]; i++) 51 err_cnt += pkg_do(pkgs[i]); 52 } 53 return err_cnt; 54} 55 56static Package Plist; 57static char *Home; 58 59/* 60 * This is seriously ugly code following. Written very fast! 61 * [And subsequently made even worse.. Sigh! This code was just born 62 * to be hacked, I guess.. :) -jkh] 63 */ 64static int 65pkg_do(char *pkg) 66{ 67 char pkg_fullname[FILENAME_MAX]; 68 char playpen[FILENAME_MAX]; 69 char extract_contents[FILENAME_MAX]; 70 char *where_to, *tmp, *extract; 71 FILE *cfile; 72 int code; 73 PackingList p; 74 struct stat sb; 75 int inPlace; 76 /* support for separate pre/post install scripts */ 77 int new_m = 0; 78 char pre_script[FILENAME_MAX] = INSTALL_FNAME; 79 char post_script[FILENAME_MAX]; 80 char pre_arg[FILENAME_MAX], post_arg[FILENAME_MAX]; 81 82 code = 0; 83 zapLogDir = 0; 84 LogDir[0] = '\0'; 85 strcpy(playpen, FirstPen); 86 inPlace = 0; 87 88 /* Are we coming in for a second pass, everything already extracted? */ 89 if (!pkg) { 90 fgets(playpen, FILENAME_MAX, stdin); 91 playpen[strlen(playpen) - 1] = '\0'; /* pesky newline! */ 92 if (chdir(playpen) == FAIL) { 93 warnx("pkg_add in SLAVE mode can't chdir to %s", playpen); 94 return 1; 95 } 96 read_plist(&Plist, stdin); 97 where_to = playpen; 98 } 99 /* Nope - do it now */ 100 else { 101 /* Is it an ftp://foo.bar.baz/file.tgz specification? */ 102 if (isURL(pkg)) { 103 if (!(Home = fileGetURL(NULL, pkg))) { 104 warnx("unable to fetch `%s' by URL", pkg); 105 return 1; 106 } 107 where_to = Home; 108 strcpy(pkg_fullname, pkg); 109 cfile = fopen(CONTENTS_FNAME, "r"); 110 if (!cfile) { 111 warnx( 112 "unable to open table of contents file `%s' - not a package?", 113 CONTENTS_FNAME); 114 goto bomb; 115 } 116 read_plist(&Plist, cfile); 117 fclose(cfile); 118 } 119 else { 120 strcpy(pkg_fullname, pkg); /* 121 * Copy for sanity's sake, 122 * could remove pkg_fullname 123 */ 124 if (strcmp(pkg, "-")) { 125 if (stat(pkg_fullname, &sb) == FAIL) { 126 warnx("can't stat package file '%s'", pkg_fullname); 127 goto bomb; 128 } 129 sprintf(extract_contents, "--fast-read %s", CONTENTS_FNAME); 130 extract = extract_contents; 131 } 132 else { 133 extract = NULL; 134 sb.st_size = 100000; /* Make up a plausible average size */ 135 } 136 Home = make_playpen(playpen, sb.st_size * 4); 137 if (!Home) 138 errx(1, "unable to make playpen for %qd bytes", sb.st_size * 4); 139 where_to = Home; 140 /* Since we can call ourselves recursively, keep notes on where we came from */ 141 if (!getenv("_TOP")) 142 setenv("_TOP", Home, 1); 143 if (unpack(pkg_fullname, extract)) { 144 warnx( 145 "unable to extract table of contents file from `%s' - not a package?", 146 pkg_fullname); 147 goto bomb; 148 } 149 cfile = fopen(CONTENTS_FNAME, "r"); 150 if (!cfile) { 151 warnx( 152 "unable to open table of contents file `%s' - not a package?", 153 CONTENTS_FNAME); 154 goto bomb; 155 } 156 read_plist(&Plist, cfile); 157 fclose(cfile); 158 159 /* Extract directly rather than moving? Oh goodie! */ 160 if (find_plist_option(&Plist, "extract-in-place")) { 161 if (Verbose) 162 printf("Doing in-place extraction for %s\n", pkg_fullname); 163 p = find_plist(&Plist, PLIST_CWD); 164 if (p) { 165 if (!isdir(p->name) && !Fake) { 166 if (Verbose) 167 printf("Desired prefix of %s does not exist, creating..\n", p->name); 168 vsystem("mkdir -p %s", p->name); 169 if (chdir(p->name) == -1) { 170 warn("unable to change directory to `%s'", p->name); 171 goto bomb; 172 } 173 } 174 where_to = p->name; 175 inPlace = 1; 176 } 177 else { 178 warnx( 179 "no prefix specified in `%s' - this is a bad package!", 180 pkg_fullname); 181 goto bomb; 182 } 183 } 184 185 /* 186 * Apply a crude heuristic to see how much space the package will 187 * take up once it's unpacked. I've noticed that most packages 188 * compress an average of 75%, so multiply by 4 for good measure. 189 */ 190 191 if (!inPlace && min_free(playpen) < sb.st_size * 4) { 192 warnx("projected size of %qd exceeds available free space.\n" 193"Please set your PKG_TMPDIR variable to point to a location with more\n" 194 "free space and try again", sb.st_size * 4); 195 warnx("not extracting %s\ninto %s, sorry!", 196 pkg_fullname, where_to); 197 goto bomb; 198 } 199 200 /* If this is a direct extract and we didn't want it, stop now */ 201 if (inPlace && Fake) 202 goto success; 203 204 /* Finally unpack the whole mess */ 205 if (unpack(pkg_fullname, NULL)) { 206 warnx("unable to extract `%s'!", pkg_fullname); 207 goto bomb; 208 } 209 } 210 211 /* Check for sanity and dependencies */ 212 if (sanity_check(pkg)) 213 goto bomb; 214 215 /* If we're running in MASTER mode, just output the plist and return */ 216 if (AddMode == MASTER) { 217 printf("%s\n", where_playpen()); 218 write_plist(&Plist, stdout); 219 return 0; 220 } 221 } 222 223 /* 224 * If we have a prefix, delete the first one we see and add this 225 * one in place of it. 226 */ 227 if (Prefix) { 228 delete_plist(&Plist, FALSE, PLIST_CWD, NULL); 229 add_plist_top(&Plist, PLIST_CWD, Prefix); 230 } 231 232 setenv(PKG_PREFIX_VNAME, (p = find_plist(&Plist, PLIST_CWD)) ? p->name : ".", 1); 233 /* Protect against old packages with bogus @name fields */ 234 PkgName = (p = find_plist(&Plist, PLIST_NAME)) ? p->name : "anonymous"; 235 236 /* See if we're already registered */ 237 sprintf(LogDir, "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, PkgName); 238 if (isdir(LogDir) && !Force) { 239 warnx("package `%s' already recorded as installed", PkgName); 240 code = 1; 241 goto success; /* close enough for government work */ 242 } 243 244 /* Now check the packing list for dependencies */ 245 for (p = Plist.head; p ; p = p->next) { 246 if (p->type != PLIST_PKGDEP) 247 continue; 248 if (Verbose) 249 printf("Package `%s' depends on `%s'.\n", PkgName, p->name); 250 if (vsystem("pkg_info -e %s", p->name)) { 251 char path[FILENAME_MAX], *cp = NULL; 252 253 if (!Fake) { 254 if (!isURL(pkg) && !getenv("PKG_ADD_BASE")) { 255 snprintf(path, FILENAME_MAX, "%s/%s.tgz", getenv("_TOP"), p->name); 256 if (fexists(path)) 257 cp = path; 258 else 259 cp = fileFindByPath(pkg, p->name); 260 if (cp) { 261 if (Verbose) 262 printf("Loading it from %s.\n", cp); 263 if (vsystem("pkg_add %s'%s'", Verbose ? "-v " : "", cp)) { 264 warnx("autoload of dependency `%s' failed%s", 265 cp, Force ? " (proceeding anyway)" : "!"); 266 if (!Force) 267 ++code; 268 } 269 } 270 else { 271 warnx("could not find package %s %s", 272 p->name, Force ? " (proceeding anyway)" : "!"); 273 if (!Force) 274 ++code; 275 } 276 } 277 else if ((cp = fileGetURL(pkg, p->name)) != NULL) { 278 if (Verbose) 279 printf("Finished loading %s over FTP.\n", p->name); 280 if (!fexists("+CONTENTS")) { 281 warnx("autoloaded package %s has no +CONTENTS file?", 282 p->name); 283 if (!Force) 284 ++code; 285 } 286 else if (vsystem("(pwd; cat +CONTENTS) | pkg_add %s-S", Verbose ? "-v " : "")) { 287 warnx("pkg_add of dependency `%s' failed%s", 288 p->name, Force ? " (proceeding anyway)" : "!"); 289 if (!Force) 290 ++code; 291 } 292 else if (Verbose) 293 printf("\t`%s' loaded successfully.\n", p->name); 294 /* Nuke the temporary playpen */ 295 leave_playpen(); 296 } 297 } 298 else { 299 if (Verbose) 300 printf("and was not found%s.\n", Force ? " (proceeding anyway)" : ""); 301 else 302 printf("Package dependency %s for %s not found%s\n", p->name, pkg, 303 Force ? " (proceeding anyway)" : "!"); 304 if (!Force) 305 ++code; 306 } 307 } 308 else if (Verbose) 309 printf(" - already installed.\n"); 310 } 311 312 if (code != 0) 313 goto bomb; 314 315 /* Look for the requirements file */ 316 if (fexists(REQUIRE_FNAME)) { 317 vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */ 318 if (Verbose) 319 printf("Running requirements file first for %s..\n", PkgName); 320 if (!Fake && vsystem("./%s %s INSTALL", REQUIRE_FNAME, PkgName)) { 321 warnx("package %s fails requirements %s", pkg_fullname, 322 Force ? "installing anyway" : "- not installed"); 323 if (!Force) { 324 code = 1; 325 goto success; /* close enough for government work */ 326 } 327 } 328 } 329 330 /* 331 * Test whether to use the old method of passing tokens to installation 332 * scripts, and set appropriate variables.. 333 */ 334 335 if (fexists(POST_INSTALL_FNAME)) { 336 new_m = 1; 337 sprintf(post_script, "%s", POST_INSTALL_FNAME); 338 pre_arg[0] = '\0'; 339 post_arg[0] = '\0'; 340 } else { 341 if (fexists(INSTALL_FNAME)) { 342 sprintf(post_script, "%s", INSTALL_FNAME); 343 sprintf(pre_arg, "PRE-INSTALL"); 344 sprintf(post_arg, "POST-INSTALL"); 345 } 346 } 347 348 /* If we're really installing, and have an installation file, run it */ 349 if (!NoInstall && fexists(pre_script)) { 350 vsystem("chmod +x %s", pre_script); /* make sure */ 351 if (Verbose) 352 printf("Running pre-install for %s..\n", PkgName); 353 if (!Fake && vsystem("./%s %s %s", pre_script, PkgName, pre_arg)) { 354 warnx("install script returned error status"); 355 unlink(pre_script); 356 code = 1; 357 goto success; /* nothing to uninstall yet */ 358 } 359 if (new_m) unlink(pre_script); 360 } 361 362 /* Now finally extract the entire show if we're not going direct */ 363 if (!inPlace && !Fake) 364 extract_plist(".", &Plist); 365 366 if (!Fake && fexists(MTREE_FNAME)) { 367 if (Verbose) 368 printf("Running mtree for %s..\n", PkgName); 369 p = find_plist(&Plist, PLIST_CWD); 370 if (Verbose) 371 printf("mtree -U -f %s -d -e -p %s >%s\n", MTREE_FNAME, p ? p->name : "/", _PATH_DEVNULL); 372 if (!Fake) { 373 if (vsystem("/usr/sbin/mtree -U -f %s -d -e -p %s >%s", MTREE_FNAME, p ? p->name : "/", _PATH_DEVNULL)) 374 warnx("mtree returned a non-zero status - continuing"); 375 } 376 unlink(MTREE_FNAME); 377 } 378 379 /* Run the installation script one last time? */ 380 if (!NoInstall && fexists(post_script)) { 381 vsystem("chmod +x %s", post_script); /* make sure */ 382 if (Verbose) 383 printf("Running post-install for %s..\n", PkgName); 384 if (!Fake && vsystem("./%s %s %s", post_script, PkgName, post_arg)) { 385 warnx("install script returned error status"); 386 unlink(post_script); 387 code = 1; 388 goto fail; 389 } 390 unlink(post_script); 391 } 392 393 /* Time to record the deed? */ 394 if (!NoRecord && !Fake) { 395 char contents[FILENAME_MAX]; 396 FILE *cfile; 397 398 umask(022); 399 if (getuid() != 0) 400 warnx("not running as root - trying to record install anyway"); 401 if (!PkgName) { 402 warnx("no package name! can't record package, sorry"); 403 code = 1; 404 goto success; /* well, partial anyway */ 405 } 406 sprintf(LogDir, "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, PkgName); 407 zapLogDir = 1; 408 if (Verbose) 409 printf("Attempting to record package into %s..\n", LogDir); 410 if (make_hierarchy(LogDir)) { 411 warnx("can't record package into '%s', you're on your own!", 412 LogDir); 413 bzero(LogDir, FILENAME_MAX); 414 code = 1; 415 goto success; /* close enough for government work */ 416 } 417 /* Make sure pkg_info can read the entry */ 418 vsystem("chmod a+rx %s", LogDir); 419 if (fexists(DEINSTALL_FNAME)) 420 move_file(".", DEINSTALL_FNAME, LogDir); 421 if (fexists(POST_DEINSTALL_FNAME)) 422 move_file(".", POST_DEINSTALL_FNAME, LogDir); 423 if (fexists(REQUIRE_FNAME)) 424 move_file(".", REQUIRE_FNAME, LogDir); 425 sprintf(contents, "%s/%s", LogDir, CONTENTS_FNAME); 426 cfile = fopen(contents, "w"); 427 if (!cfile) { 428 warnx("can't open new contents file '%s'! can't register pkg", 429 contents); 430 goto success; /* can't log, but still keep pkg */ 431 } 432 write_plist(&Plist, cfile); 433 fclose(cfile); 434 move_file(".", DESC_FNAME, LogDir); 435 move_file(".", COMMENT_FNAME, LogDir); 436 if (fexists(DISPLAY_FNAME)) 437 move_file(".", DISPLAY_FNAME, LogDir); 438 for (p = Plist.head; p ; p = p->next) { 439 if (p->type != PLIST_PKGDEP) 440 continue; 441 if (Verbose) 442 printf("Attempting to record dependency on package `%s'\n", p->name); 443 sprintf(contents, "%s/%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, 444 basename_of(p->name), REQUIRED_BY_FNAME); 445 cfile = fopen(contents, "a"); 446 if (!cfile) 447 warnx("can't open dependency file '%s'!\n" 448 "dependency registration is incomplete", contents); 449 else { 450 fprintf(cfile, "%s\n", PkgName); 451 if (fclose(cfile) == EOF) 452 warnx("cannot properly close file %s", contents); 453 } 454 } 455 if (Verbose) 456 printf("Package %s registered in %s\n", PkgName, LogDir); 457 } 458 459 if ((p = find_plist(&Plist, PLIST_DISPLAY)) != NULL) { 460 FILE *fp; 461 char buf[BUFSIZ]; 462 463 snprintf(buf, sizeof buf, "%s/%s", LogDir, p->name); 464 fp = fopen(buf, "r"); 465 if (fp) { 466 putc('\n', stdout); 467 while (fgets(buf, sizeof(buf), fp)) 468 fputs(buf, stdout); 469 putc('\n', stdout); 470 (void) fclose(fp); 471 } else 472 warnx("cannot open %s as display file", buf); 473 } 474 475 goto success; 476 477 bomb: 478 code = 1; 479 goto success; 480 481 fail: 482 /* Nuke the whole (installed) show, XXX but don't clean directories */ 483 if (!Fake) 484 delete_package(FALSE, FALSE, &Plist); 485 486 success: 487 /* delete the packing list contents */ 488 free_plist(&Plist); 489 leave_playpen(); 490 return code; 491} 492 493static int 494sanity_check(char *pkg) 495{ 496 int code = 0; 497 498 if (!fexists(CONTENTS_FNAME)) { 499 warnx("package %s has no CONTENTS file!", pkg); 500 code = 1; 501 } 502 else if (!fexists(COMMENT_FNAME)) { 503 warnx("package %s has no COMMENT file!", pkg); 504 code = 1; 505 } 506 else if (!fexists(DESC_FNAME)) { 507 warnx("package %s has no DESC file!", pkg); 508 code = 1; 509 } 510 return code; 511} 512 513void 514cleanup(int sig) 515{ 516 static int in_cleanup = 0; 517 518 if (!in_cleanup) { 519 in_cleanup = 1; 520 if (sig) 521 printf("Signal %d received, cleaning up..\n", sig); 522 if (!Fake && zapLogDir && LogDir[0]) 523 vsystem("%s -rf %s", REMOVE_CMD, LogDir); 524 leave_playpen(); 525 } 526 if (sig) 527 exit(1); 528} 529