usr.sbin/pkg_install/info/perform.c

   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  * 23 Aug 1993
  16  *
  17  * This is the main body of the info module.
  18  *
  19  */
  20
  21 #include <sys/cdefs.h>
  22 __FBSDID("$FreeBSD: src/usr.sbin/pkg_install/info/perform.c,v 1.29.2.14 2002/10/11 14:23:43 sobomax Exp $");
  23
  24 #include "lib.h"
  25 #include "info.h"
  26 #include <err.h>
  27 #include <signal.h>
  28
  29 static int pkg_do(char *);
  30 static int find_pkg(struct which_head *);
  31 static int cmp_path(const char *, const char *, const char *);
  32 static char *abspath(const char *);
  33 static int find_pkgs_by_origin(const char *);
  34
  35 int
  36 pkg_perform(char **pkgs)
  37 {
  38     char **matched;
  39     int err_cnt = 0;
  40     int i, errcode;
  41
  42     signal(SIGINT, cleanup);
  43
  44     /* Overriding action? */
  45     if (CheckPkg) {
  46         return isinstalledpkg(CheckPkg) == TRUE ? 0 : 1;
  47         /* Not reached */
  48     } else if (!TAILQ_EMPTY(whead)) {
  49         return find_pkg(whead);
  50     } else if (LookUpOrigin != NULL) {
  51         return find_pkgs_by_origin(LookUpOrigin);
  52     }
  53
  54     if (MatchType != MATCH_EXACT) {
  55         matched = matchinstalled(MatchType, pkgs, &errcode);
  56         if (errcode != 0)
  57             return 1;
  58             /* Not reached */
  59
  60         if (matched != NULL)
  61             pkgs = matched;
  62         else switch (MatchType) {
  63             case MATCH_GLOB:
  64                 break;
  65             case MATCH_ALL:
  66                 warnx("no packages installed");
  67                 return 0;
  68                 /* Not reached */
  69             case MATCH_REGEX:
  70                 warnx("no packages match pattern(s)");
  71                 return 1;
  72                 /* Not reached */
  73             default:
  74                 break;
  75         }
  76     }
  77
  78     for (i = 0; pkgs[i]; i++)
  79         err_cnt += pkg_do(pkgs[i]);
  80
  81     return err_cnt;
  82 }
  83
  84 static char *Home;
  85
  86 static int
  87 pkg_do(char *pkg)
  88 {
  89     Boolean installed = FALSE, isTMP = FALSE;
  90     char log_dir[FILENAME_MAX];
  91     char fname[FILENAME_MAX], extrlist[FILENAME_MAX];
  92     Package plist;
  93     FILE *fp;
  94     struct stat sb;
  95     char *cp = NULL;
  96     int code = 0;
  97
  98     if (isURL(pkg)) {
  99         if ((cp = fileGetURL(NULL, pkg)) != NULL) {
 100             strcpy(fname, cp);
 101             isTMP = TRUE;
 102         }
 103     }
 104     else if (fexists(pkg) && isfile(pkg)) {
 105         int len;
 106
 107         if (*pkg != '/') {
 108             if (!getcwd(fname, FILENAME_MAX))
 109                 upchuck("getcwd");
 110             len = strlen(fname);
 111             snprintf(&fname[len], FILENAME_MAX - len, "/%s", pkg);
 112         }
 113         else
 114             strcpy(fname, pkg);
 115         cp = fname;
 116     }
 117     else {
 118         if ((cp = fileFindByPath(NULL, pkg)) != NULL)
 119             strncpy(fname, cp, FILENAME_MAX);
 120     }
 121     if (cp) {
 122         /*
 123          * Apply a crude heuristic to see how much space the package will
 124          * take up once it's unpacked.  I've noticed that most packages
 125          * compress an average of 75%, but we're only unpacking the + files so
 126          * be very optimistic.
 127          */
 128         if (stat(fname, &sb) == FAIL) {
 129             warnx("can't stat package file '%s'", fname);
 130             code = 1;
 131             goto bail;
 132         }
 133         Home = make_playpen(PlayPen, sb.st_size / 2);
 134         snprintf(extrlist, sizeof(extrlist), "--fast-read %s %s %s",
 135                  CONTENTS_FNAME, COMMENT_FNAME, DESC_FNAME);
 136         if (Flags & SHOW_DISPLAY)
 137             snprintf(extrlist, sizeof(extrlist), "%s %s", extrlist,
 138                      DISPLAY_FNAME);
 139         if (Flags & SHOW_INSTALL)
 140             snprintf(extrlist, sizeof(extrlist), "%s %s %s", extrlist,
 141                      INSTALL_FNAME, POST_INSTALL_FNAME);
 142         if (Flags & SHOW_DEINSTALL)
 143             snprintf(extrlist, sizeof(extrlist), "%s %s %s", extrlist,
 144                      DEINSTALL_FNAME, POST_DEINSTALL_FNAME);
 145         if (Flags & SHOW_MTREE)
 146             snprintf(extrlist, sizeof(extrlist), "%s %s", extrlist,
 147                      MTREE_FNAME);
 148         if (unpack(fname, extrlist)) {
 149             warnx("error during unpacking, no info for '%s' available", pkg);
 150             code = 1;
 151             goto bail;
 152         }
 153     }
 154     /* It's not an ininstalled package, try and find it among the installed */
 155     else {
 156         if (!isinstalledpkg(pkg)) {
 157             warnx("can't find package '%s' installed or in a file!", pkg);
 158             return 1;
 159         }
 160         sprintf(log_dir, "%s/%s", LOG_DIR, pkg);
 161         if (chdir(log_dir) == FAIL) {
 162             warnx("can't change directory to '%s'!", log_dir);
 163             return 1;
 164         }
 165         installed = TRUE;
 166     }
 167
 168     /* Suck in the contents list */
 169     plist.head = plist.tail = NULL;
 170     fp = fopen(CONTENTS_FNAME, "r");
 171     if (!fp) {
 172         warnx("unable to open %s file", CONTENTS_FNAME);
 173         code = 1;
 174         goto bail;
 175     }
 176     /* If we have a prefix, add it now */
 177     read_plist(&plist, fp);
 178     fclose(fp);
 179
 180     /*
 181      * Index is special info type that has to override all others to make
 182      * any sense.
 183      */
 184     if (Flags & SHOW_INDEX) {
 185         char tmp[FILENAME_MAX];
 186
 187         snprintf(tmp, FILENAME_MAX, "%-19s ", pkg);
 188         show_index(tmp, COMMENT_FNAME);
 189     }
 190     else {
 191         /* Start showing the package contents */
 192         if (!Quiet)
 193             printf("%sInformation for %s:\n\n", InfoPrefix, pkg);
 194         if (Flags & SHOW_COMMENT)
 195             show_file("Comment:\n", COMMENT_FNAME);
 196         if (Flags & SHOW_REQUIRE)
 197             show_plist("Depends on:\n", &plist, PLIST_PKGDEP, FALSE);
 198         if ((Flags & SHOW_REQBY) && !isemptyfile(REQUIRED_BY_FNAME))
 199             show_file("Required by:\n", REQUIRED_BY_FNAME);
 200         if (Flags & SHOW_DESC)
 201             show_file("Description:\n", DESC_FNAME);
 202         if ((Flags & SHOW_DISPLAY) && fexists(DISPLAY_FNAME))
 203             show_file("Install notice:\n", DISPLAY_FNAME);
 204         if (Flags & SHOW_PLIST)
 205             show_plist("Packing list:\n", &plist, (plist_t)0, TRUE);
 206         if ((Flags & SHOW_INSTALL) && fexists(INSTALL_FNAME))
 207             show_file("Install script:\n", INSTALL_FNAME);
 208         if ((Flags & SHOW_INSTALL) && fexists(POST_INSTALL_FNAME))
 209             show_file("Post-Install script:\n", POST_INSTALL_FNAME);
 210         if ((Flags & SHOW_DEINSTALL) && fexists(DEINSTALL_FNAME))
 211             show_file("De-Install script:\n", DEINSTALL_FNAME);
 212         if ((Flags & SHOW_DEINSTALL) && fexists(POST_DEINSTALL_FNAME))
 213             show_file("Post-DeInstall script:\n", POST_DEINSTALL_FNAME);
 214         if ((Flags & SHOW_MTREE) && fexists(MTREE_FNAME))
 215             show_file("mtree file:\n", MTREE_FNAME);
 216         if (Flags & SHOW_PREFIX)
 217             show_plist("Prefix(s):\n", &plist, PLIST_CWD, FALSE);
 218         if (Flags & SHOW_FILES)
 219             show_files("Files:\n", &plist);
 220         if ((Flags & SHOW_SIZE) && installed)
 221             show_size("Package Size:\n", &plist);
 222         if ((Flags & SHOW_CKSUM) && installed)
 223             show_cksum("Mismatched Checksums:\n", &plist);
 224         if (Flags & SHOW_ORIGIN)
 225             show_origin("Origin:\n", &plist);
 226         if (Flags & SHOW_FMTREV)
 227             show_fmtrev("Packing list format revision:\n", &plist);
 228         if (!Quiet)
 229             puts(InfoPrefix);
 230     }
 231     free_plist(&plist);
 232  bail:
 233     leave_playpen();
 234     if (isTMP)
 235         unlink(fname);
 236     return code;
 237 }
 238
 239 void
 240 cleanup(int sig)
 241 {
 242     static int in_cleanup = 0;
 243
 244     if (!in_cleanup) {
 245         in_cleanup = 1;
 246         leave_playpen();
 247     }
 248     if (sig)
 249         exit(1);
 250 }
 251
 252 /*
 253  * Return an absolute path, additionally removing all .'s, ..'s, and extraneous
 254  * /'s, as realpath() would, but without resolving symlinks, because that can
 255  * potentially screw up our comparisons later.
 256  */
 257 static char *
 258 abspath(const char *pathname)
 259 {
 260     char *tmp, *tmp1, *resolved_path;
 261     char *cwd = NULL;
 262     int len;
 263
 264     if (pathname[0] != '/') {
 265         cwd = getcwd(NULL, MAXPATHLEN);
 266         asprintf(&resolved_path, "%s/%s/", cwd, pathname);
 267     } else
 268         asprintf(&resolved_path, "%s/", pathname);
 269
 270     if (resolved_path == NULL)
 271         errx(2, NULL);
 272
 273     if (cwd != NULL)
 274         free(cwd);
 275
 276     while ((tmp = strstr(resolved_path, "//")) != NULL)
 277         strcpy(tmp, tmp + 1);
 278
 279     while ((tmp = strstr(resolved_path, "/./")) != NULL)
 280         strcpy(tmp, tmp + 2);
 281
 282     while ((tmp = strstr(resolved_path, "/../")) != NULL) {
 283         *tmp = '\0';
 284         if ((tmp1 = strrchr(resolved_path, '/')) == NULL)
 285            tmp1 = resolved_path;
 286         strcpy(tmp1, tmp + 3);
 287     }
 288
 289     len = strlen(resolved_path);
 290     if (len > 1 && resolved_path[len - 1] == '/')
 291         resolved_path[len - 1] = '\0';
 292
 293     return resolved_path;
 294 }
 295
 296 /*
 297  * Comparison to see if the path we're on matches the
 298  * one we are looking for.
 299  */
 300 static int
 301 cmp_path(const char *target, const char *current, const char *cwd)
 302 {
 303     char *resolved, *temp;
 304     int rval;
 305
 306     asprintf(&temp, "%s/%s", cwd, current);
 307     if (temp == NULL)
 308         errx(2, NULL);
 309
 310     /*
 311      * Make sure there's no multiple /'s or other weird things in the PLIST,
 312      * since some plists seem to have them and it could screw up our strncmp.
 313      */
 314     resolved = abspath(temp);
 315
 316     if (strcmp(target, resolved) == 0)
 317         rval = 1;
 318     else
 319         rval = 0;
 320
 321     free(temp);
 322     free(resolved);
 323     return rval;
 324 }
 325
 326 /*
 327  * Look through package dbs in LOG_DIR and find which
 328  * packages installed the files in which_list.
 329  */
 330 static int
 331 find_pkg(struct which_head *which_list)
 332 {
 333     char **installed;
 334     int errcode, i;
 335     struct which_entry *wp;
 336
 337     TAILQ_FOREACH(wp, which_list, next) {
 338         const char *msg = "file cannot be found";
 339         char *tmp;
 340
 341         wp->skip = TRUE;
 342         /* If it's not a file, we'll see if it's an executable. */
 343         if (isfile(wp->file) == FALSE) {
 344             if (strchr(wp->file, '/') == NULL) {
 345                 tmp = vpipe("/usr/bin/which %s", wp->file);
 346                 if (tmp != NULL) {
 347                     strlcpy(wp->file, tmp, PATH_MAX);
 348                     wp->skip = FALSE;
 349                     free(tmp);
 350                 } else
 351                     msg = "file is not in PATH";
 352             }
 353         } else {
 354             tmp = abspath(wp->file);
 355             if (isfile(tmp)) {
 356                 strlcpy(wp->file, tmp, PATH_MAX);
 357                 wp->skip = FALSE;
 358             }
 359             free(tmp);
 360         }
 361         if (wp->skip == TRUE)
 362             warnx("%s: %s", wp->file, msg);
 363     }
 364
 365     installed = matchinstalled(MATCH_ALL, NULL, &errcode);
 366     if (installed == NULL)
 367         return errcode;
 368
 369     for (i = 0; installed[i] != NULL; i++) {
 370         FILE *fp;
 371         Package pkg;
 372         PackingList itr;
 373         char *cwd = NULL;
 374         char tmp[PATH_MAX];
 375
 376         snprintf(tmp, PATH_MAX, "%s/%s/%s", LOG_DIR, installed[i],
 377                  CONTENTS_FNAME);
 378         fp = fopen(tmp, "r");
 379         if (fp == NULL) {
 380             warn("%s", tmp);
 381             return 1;
 382         }
 383
 384         pkg.head = pkg.tail = NULL;
 385         read_plist(&pkg, fp);
 386         fclose(fp);
 387         for (itr = pkg.head; itr != pkg.tail; itr = itr->next) {
 388             if (itr->type == PLIST_CWD) {
 389                 cwd = itr->name;
 390             } else if (itr->type == PLIST_FILE) {
 391                 TAILQ_FOREACH(wp, which_list, next) {
 392                     if (wp->skip == TRUE)
 393                         continue;
 394                     if (!cmp_path(wp->file, itr->name, cwd))
 395                         continue;
 396                     if (wp->package[0] != '\0') {
 397                         warnx("both %s and %s claim to have installed %s\n",
 398                               wp->package, installed[i], wp->file);
 399                     } else {
 400                         strlcpy(wp->package, installed[i], PATH_MAX);
 401                     }
 402                 }
 403             }
 404         }
 405         free_plist(&pkg);
 406     }
 407
 408     TAILQ_FOREACH(wp, which_list, next) {
 409         if (wp->package[0] != '\0') {
 410             if (Quiet)
 411                 puts(wp->package);
 412             else
 413                 printf("%s was installed by package %s\n", \
 414                        wp->file, wp->package);
 415         }
 416     }
 417     while (!TAILQ_EMPTY(which_list)) {
 418         wp = TAILQ_FIRST(which_list);
 419         TAILQ_REMOVE(which_list, wp, next);
 420         free(wp);
 421     }
 422
 423     free(which_list);
 424     return 0;
 425 }
 426
 427 /*
 428  * Look through package dbs in LOG_DIR and find which
 429  * packages have the given origin. Don't use read_plist()
 430  * because this increases time necessary for lookup by 40
 431  * times, as we don't really have to parse all plist to
 432  * get origin.
 433  */
 434 static int
 435 find_pkgs_by_origin(const char *origin)
 436 {
 437     char **matched;
 438     int errcode, i;
 439
 440     if (!Quiet)
 441         printf("The following installed package(s) has %s origin:\n", origin);
 442
 443     matched = matchbyorigin(origin, &errcode);
 444     if (matched == NULL)
 445         return errcode;
 446
 447     for (i = 0; matched[i] != NULL; i++)
 448         puts(matched[i]);
 449
 450     return 0;
 451 }