perform.c revision 8115
1#ifndef lint 2static const char *rcsid = "$Id: perform.c,v 1.23 1995/04/27 11:33:08 jkh Exp $"; 3#endif 4 5/* 6 * FreeBSD install - a package for the installation and maintainance 7 * of non-core utilities. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * Jordan K. Hubbard 19 * 18 July 1993 20 * 21 * This is the main body of the add module. 22 * 23 */ 24 25#include "lib.h" 26#include "add.h" 27 28#include <signal.h> 29#include <sys/wait.h> 30 31static int pkg_do(char *); 32static int sanity_check(char *); 33static char LogDir[FILENAME_MAX]; 34 35 36int 37pkg_perform(char **pkgs) 38{ 39 int i, err_cnt = 0; 40 41 signal(SIGINT, cleanup); 42 signal(SIGHUP, cleanup); 43 44 if (AddMode == SLAVE) 45 err_cnt = pkg_do(NULL); 46 else { 47 for (i = 0; pkgs[i]; i++) 48 err_cnt += pkg_do(pkgs[i]); 49 } 50 return err_cnt; 51} 52 53static Package Plist; 54 55/* 56 * This is seriously ugly code following. Written very fast! 57 * [And subsequently made even worse.. Sigh! This code was just born 58 * to be hacked, I guess.. :) -jkh] 59 */ 60static int 61pkg_do(char *pkg) 62{ 63 char pkg_fullname[FILENAME_MAX]; 64 char home[FILENAME_MAX]; 65 char extract_contents[FILENAME_MAX]; 66 char *where_to, *tmp; 67 FILE *cfile; 68 int code = 0; 69 PackingList p; 70 struct stat sb; 71 char *isTMP = NULL; 72 73 /* Reset some state */ 74 if (Plist.head) 75 free_plist(&Plist); 76 LogDir[0] = '\0'; 77 78 /* Are we coming in for a second pass, everything already extracted? */ 79 if (AddMode == SLAVE) { 80 char tmp_dir[FILENAME_MAX]; 81 82 fgets(tmp_dir, FILENAME_MAX, stdin); 83 tmp_dir[strlen(tmp_dir) - 1] = '\0'; /* pesky newline! */ 84 if (chdir(tmp_dir) == FAIL) { 85 whinge("pkg_add in SLAVE mode can't chdir to %s.", tmp_dir); 86 return 1; 87 } 88 read_plist(&Plist, stdin); 89 } 90 /* Nope - do it now */ 91 else { 92 if (!getcwd(home, FILENAME_MAX)) 93 upchuck("getcwd"); 94 95 if (isURL(pkg)) { 96 char *newname = fileGetURL(pkg); 97 98 if (!newname) { 99 whinge("Unable to fetch `%s' by URL.", pkg); 100 return 1; 101 } 102 strcpy(pkg_fullname, newname); 103 isTMP = pkg_fullname; 104 } 105 else { 106 if (pkg[0] == '/') /* full pathname? */ 107 strcpy(pkg_fullname, pkg); 108 else 109 sprintf(pkg_fullname, "%s/%s", home, pkg); 110 if (!fexists(pkg_fullname)) { 111 char *tmp = fileFindByPath(pkg); 112 113 if (!tmp) { 114 whinge("Can't find package `%s'.", pkg); 115 return 1; 116 } 117 strcpy(pkg_fullname, tmp); 118 } 119 } 120 Home = make_playpen(PlayPen, 0); 121 sprintf(extract_contents, "--fast-read %s", CONTENTS_FNAME); 122 if (unpack(pkg_fullname, extract_contents)) { 123 whinge("Unable to extract table of contents file from `%s' - not a package?.", pkg_fullname); 124 goto bomb; 125 } 126 cfile = fopen(CONTENTS_FNAME, "r"); 127 if (!cfile) { 128 whinge("Unable to open table of contents file `%s' - not a package?", CONTENTS_FNAME); 129 goto bomb; 130 } 131 read_plist(&Plist, cfile); 132 fclose(cfile); 133 134 /* 135 * If we have a prefix, delete the first one we see and add this 136 * one in place of it. 137 */ 138 if (Prefix) { 139 delete_plist(&Plist, FALSE, PLIST_CWD, NULL); 140 add_plist_top(&Plist, PLIST_CWD, Prefix); 141 } 142 143 /* Extract directly rather than moving? Oh goodie! */ 144 if (find_plist_option(&Plist, "extract-in-place")) { 145 if (Verbose) 146 printf("Doing in-place extraction for %s\n", pkg_fullname); 147 p = find_plist(&Plist, PLIST_CWD); 148 if (p) { 149 if (!isdir(p->name) && !Fake) { 150 if (Verbose) 151 printf("Desired prefix of %s does not exist, creating..\n", p->name); 152 vsystem("mkdir -p %s", p->name); 153 if (chdir(p->name)) { 154 whinge("Unable to change directory to `%s' - no permission?", p->name); 155 perror("chdir"); 156 goto bomb; 157 } 158 } 159 where_to = p->name; 160 } 161 else { 162 whinge("No prefix specified in `%s' - this is a bad package!", 163 pkg_fullname); 164 goto bomb; 165 } 166 } 167 else 168 where_to = PlayPen; 169 /* 170 * Apply a crude heuristic to see how much space the package will 171 * take up once it's unpacked. I've noticed that most packages 172 * compress an average of 75%, so multiply by 4 for good measure. 173 */ 174 if (stat(pkg_fullname, &sb) == FAIL) { 175 whinge("Can't stat package file '%s'.", pkg_fullname); 176 goto bomb; 177 } 178 179 if (min_free(where_to) < sb.st_size * 4) { 180 whinge("Projected size of %d exceeds free space in %s.", 181 sb.st_size * 4, where_to); 182 whinge("Not extracting %s, sorry!", pkg_fullname); 183 goto bomb; 184 } 185 186 setenv(PKG_PREFIX_VNAME, 187 (p = find_plist(&Plist, PLIST_CWD)) ? p->name : NULL, 1); 188 /* Protect against old packages with bogus @name fields */ 189 PkgName = (p = find_plist(&Plist, PLIST_NAME)) ? p->name : "anonymous"; 190 191 /* See if we're already registered */ 192 sprintf(LogDir, "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, 193 basename_of(PkgName)); 194 if (isdir(LogDir)) { 195 char tmp[FILENAME_MAX]; 196 197 whinge("Package `%s' already recorded as installed.\n", PkgName); 198 code = 1; 199 goto success; /* close enough for government work */ 200 } 201 202 /* Now check the packing list for dependencies */ 203 for (p = Plist.head; p ; p = p->next) { 204 char *isTMP = NULL; /* local copy for depends only */ 205 206 if (p->type != PLIST_PKGDEP) 207 continue; 208 if (Verbose) 209 printf("Package `%s' depends on `%s'", pkg, p->name); 210 if (!Fake && vsystem("pkg_info -e %s", p->name)) { 211 char path[FILENAME_MAX], *cp = NULL; 212 213 if (Verbose) 214 printf(" which is not currently loaded"); 215 if (!isURL(p->name)) { 216 snprintf(path, FILENAME_MAX, "%s/%s", Home, p->name); 217 if (fexists(path)) 218 cp = path; 219 else 220 cp = fileFindByPath(p->name); 221 } 222 else { 223 cp = fileGetURL(p->name); 224 isTMP = cp; 225 } 226 if (cp) { 227 if (Verbose) 228 printf(" but was found - loading:\n"); 229 if (!Fake && vsystem("pkg_add %s", cp)) { 230 whinge("Autoload of dependency `%s' failed%s", 231 p->name, Force ? " (proceeding anyway)" : "!"); 232 if (!Force) 233 ++code; 234 } 235 else if (Verbose) 236 printf("\t`%s' loaded successfully.\n", p->name); 237 /* Nuke the temporary URL copy */ 238 if (isTMP) { 239 unlink(isTMP); 240 isTMP = NULL; 241 } 242 } 243 else { 244 if (Verbose) 245 printf("and was not found%s.\n", 246 Force ? " (proceeding anyway)" : ""); 247 else 248 printf("Package dependency %s for %s not found%s\n", 249 p->name, pkg, 250 Force ? " (proceeding anyway)" : "!"); 251 if (!Force) 252 ++code; 253 } 254 } 255 else if (Verbose) 256 printf(" - already installed.\n"); 257 } 258 259 /* If this is a direct extract and we didn't want it, stop now */ 260 if (where_to != PlayPen && Fake) 261 goto success; 262 263 /* Finally unpack the whole mess */ 264 if (unpack(pkg_fullname, NULL)) { 265 whinge("Unable to extract `%s'!", pkg_fullname); 266 goto bomb; 267 } 268 269 /* Check for sanity and dependencies */ 270 if (sanity_check(pkg_fullname)) 271 goto bomb; 272 273 /* If we're running in MASTER mode, just output the plist and return */ 274 if (AddMode == MASTER) { 275 printf("%s\n", where_playpen()); 276 write_plist(&Plist, stdout); 277 return 0; 278 } 279 } 280 281 /* Look for the requirements file */ 282 if (fexists(REQUIRE_FNAME)) { 283 vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */ 284 if (Verbose) 285 printf("Running requirements file first for %s..\n", PkgName); 286 if (!Fake && vsystem("./%s %s INSTALL", REQUIRE_FNAME, PkgName)) { 287 whinge("Package %s fails requirements %s", 288 pkg_fullname, 289 Force ? "installing anyway" : "- not installed."); 290 if (!Force) { 291 code = 1; 292 goto success; /* close enough for government work */ 293 } 294 } 295 } 296 297 /* If we're really installing, and have an installation file, run it */ 298 if (!NoInstall && fexists(INSTALL_FNAME)) { 299 vsystem("chmod +x %s", INSTALL_FNAME); /* make sure */ 300 if (Verbose) 301 printf("Running install with PRE-INSTALL for %s..\n", PkgName); 302 if (!Fake && vsystem("./%s %s PRE-INSTALL", INSTALL_FNAME, PkgName)) { 303 whinge("Install script returned error status."); 304 unlink(INSTALL_FNAME); 305 code = 1; 306 goto success; /* nothing to uninstall yet */ 307 } 308 } 309 310 /* Now finally extract the entire show if we're not going direct */ 311 if (where_to == PlayPen && !Fake) 312 extract_plist(home, &Plist); 313 314 if (!Fake && fexists(MTREE_FNAME)) { 315 if (Verbose) 316 printf("Running mtree for %s..\n", PkgName); 317 p = find_plist(&Plist, PLIST_CWD); 318 if (Verbose) 319 printf("mtree -U -f %s -d -e -p %s\n", MTREE_FNAME, 320 p ? p->name : "/"); 321 if (!Fake) { 322 if (vsystem("/usr/sbin/mtree -U -f %s -d -e -p %s", 323 MTREE_FNAME, p ? p->name : "/")) 324 whinge("mtree returned a non-zero status - continuing."); 325 } 326 unlink(MTREE_FNAME); 327 } 328 329 /* Run the installation script one last time? */ 330 if (!NoInstall && fexists(INSTALL_FNAME)) { 331 if (Verbose) 332 printf("Running install with POST-INSTALL for %s..\n", PkgName); 333 if (!Fake && vsystem("./%s %s POST-INSTALL", INSTALL_FNAME, PkgName)) { 334 whinge("Install script returned error status."); 335 unlink(INSTALL_FNAME); 336 code = 1; 337 goto fail; 338 } 339 unlink(INSTALL_FNAME); 340 } 341 342 /* Time to record the deed? */ 343 if (!NoRecord && !Fake) { 344 char contents[FILENAME_MAX]; 345 FILE *cfile; 346 347 umask(022); 348 if (getuid() != 0) 349 whinge("Not running as root - trying to record install anyway."); 350 if (!PkgName) { 351 whinge("No package name! Can't record package, sorry."); 352 code = 1; 353 goto success; /* well, partial anyway */ 354 } 355 sprintf(LogDir, "%s/%s", 356 (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, 357 basename_of(PkgName)); 358 if (Verbose) 359 printf("Attempting to record package into %s..\n", LogDir); 360 if (make_hierarchy(LogDir)) { 361 whinge("Can't record package into '%s', you're on your own!", 362 LogDir); 363 bzero(LogDir, FILENAME_MAX); 364 code = 1; 365 goto success; /* close enough for government work */ 366 } 367 /* Make sure pkg_info can read the entry */ 368 vsystem("chmod a+rx %s", LogDir); 369 if (fexists(DEINSTALL_FNAME)) 370 move_file(".", DEINSTALL_FNAME, LogDir); 371 if (fexists(REQUIRE_FNAME)) 372 move_file(".", REQUIRE_FNAME, LogDir); 373 sprintf(contents, "%s/%s", LogDir, CONTENTS_FNAME); 374 cfile = fopen(contents, "w"); 375 if (!cfile) { 376 whinge("Can't open new contents file '%s'! Can't register pkg.", 377 contents); 378 goto success; /* can't log, but still keep pkg */ 379 } 380 write_plist(&Plist, cfile); 381 fclose(cfile); 382 move_file(".", DESC_FNAME, LogDir); 383 move_file(".", COMMENT_FNAME, LogDir); 384 if (fexists(DISPLAY_FNAME)) 385 move_file(".", DISPLAY_FNAME, LogDir); 386 for (p = Plist.head; p ; p = p->next) { 387 if (p->type != PLIST_PKGDEP) 388 continue; 389 if (Verbose) 390 printf("Attempting to record dependency on package `%s'\n", 391 p->name); 392 sprintf(contents, "%s/%s/%s", 393 (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, 394 basename_of(p->name), REQUIRED_BY_FNAME); 395 cfile = fopen(contents, "a"); 396 if (!cfile) { 397 whinge("Can't open dependency file '%s'!\n\tDependency registration incomplete.", 398 contents); 399 continue; 400 } 401 fprintf(cfile, "%s\n", basename_of(PkgName)); 402 if (fclose(cfile) == EOF) 403 warn("Cannot properly close file %s", contents); 404 } 405 if (Verbose) 406 printf("Package %s registered in %s\n", PkgName, LogDir); 407 } 408 409 if (p = find_plist(&Plist, PLIST_DISPLAY)) { 410 FILE *fp; 411 char buf[BUFSIZ]; 412 fp = fopen(p->name, "r"); 413 if (fp) { 414 putc('\n', stdout); 415 while (fgets(buf, sizeof(buf), fp)) 416 fputs(buf, stdout); 417 putc('\n', stdout); 418 (void) fclose(fp); 419 } else 420 warn("Cannot open display file `%s'.", p->name); 421 } 422 423 goto success; 424 425 bomb: 426 code = 1; 427 goto success; 428 429 fail: 430 /* Nuke the whole (installed) show, XXX but don't clean directories */ 431 if (!Fake) 432 delete_package(FALSE, FALSE, &Plist); 433 434 success: 435 /* delete the packing list contents */ 436 leave_playpen(); 437 if (isTMP) 438 unlink(isTMP); 439 return code; 440} 441 442static int 443sanity_check(char *pkg) 444{ 445 PackingList p; 446 int code = 0; 447 448 if (!fexists(CONTENTS_FNAME)) { 449 whinge("Package %s has no CONTENTS file!", pkg); 450 code = 1; 451 } 452 else if (!fexists(COMMENT_FNAME)) { 453 whinge("Package %s has no COMMENT file!", pkg); 454 code = 1; 455 } 456 else if (!fexists(DESC_FNAME)) { 457 whinge("Package %s has no DESC file!", pkg); 458 code = 1; 459 } 460 return code; 461} 462 463void 464cleanup(int signo) 465{ 466 if (signo) 467 printf("Signal %d received, cleaning up..\n", signo); 468 if (Plist.head) { 469 if (!Fake) 470 delete_package(FALSE, FALSE, &Plist); 471 free_plist(&Plist); 472 } 473 if (!Fake && LogDir[0]) 474 vsystem("%s -rf %s", REMOVE_CMD, LogDir); 475 leave_playpen(); 476} 477