LCOV - code coverage report
Current view: directory - config - nsinstall.c (source / functions) Found Hit Coverage
Test: app.info Lines: 207 111 53.6 %
Date: 2012-06-02 Functions: 7 3 42.9 %

       1                 : /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : /*
      38                 : ** Netscape portable install command.
      39                 : **
      40                 : ** Brendan Eich, 7/20/95
      41                 : */
      42                 : #include <stdio.h>  /* OSF/1 requires this before grp.h, so put it first */
      43                 : #include <assert.h>
      44                 : #include <fcntl.h>
      45                 : #include <errno.h>
      46                 : #include <dirent.h>
      47                 : #include <limits.h>
      48                 : #include <grp.h>
      49                 : #include <pwd.h>
      50                 : #include <stdio.h>
      51                 : #include <stdlib.h>
      52                 : #include <string.h>
      53                 : #include <unistd.h>
      54                 : #include <utime.h>
      55                 : #include <sys/types.h>
      56                 : #include <sys/stat.h>
      57                 : #include "pathsub.h"
      58                 : 
      59                 : #ifdef HAVE_GETOPT_H
      60                 : #include <getopt.h>
      61                 : #endif
      62                 : 
      63                 : #ifdef SUNOS4
      64                 : #include "sunos4.h"
      65                 : #endif
      66                 : 
      67                 : #ifdef NEXTSTEP
      68                 : #include <bsd/libc.h>
      69                 : #endif
      70                 : 
      71                 : #ifdef __QNX__
      72                 : #include <unix.h>
      73                 : #endif
      74                 : 
      75                 : #ifdef NEED_S_ISLNK
      76                 : #if !defined(S_ISLNK) && defined(S_IFLNK)
      77                 : #define S_ISLNK(a)      (((a) & S_IFMT) == S_IFLNK)
      78                 : #endif
      79                 : #endif
      80                 : 
      81                 : #ifndef _DIRECTORY_SEPARATOR
      82                 : #define _DIRECTORY_SEPARATOR "/"
      83                 : #endif /* _DIRECTORY_SEPARATOR */
      84                 : 
      85                 : #ifdef NEED_FCHMOD_PROTO
      86                 : extern int fchmod(int fildes, mode_t mode);
      87                 : #endif
      88                 : 
      89                 : static void
      90               0 : usage(void)
      91                 : {
      92               0 :     fprintf(stderr,
      93                 :         "usage: %s [-C cwd] [-L linkprefix] [-m mode] [-o owner] [-g group]\n"
      94                 :         "       %*s [-DdltR] file [file ...] directory\n",
      95               0 :         program, (int) strlen(program), "");
      96               0 :     exit(2);
      97                 : }
      98                 : 
      99                 : static int
     100             937 : mkdirs(char *path, mode_t mode)
     101                 : {
     102                 :     char *cp;
     103                 :     struct stat sb;
     104                 :     int res;
     105                 :     int l;
     106                 : 
     107                 :     /* strip trailing "/." */
     108             937 :     l = strlen(path);
     109             937 :     if(l > 1 && path[l - 1] == '.' && path[l - 2] == '/')
     110               0 :         path[l - 2] = 0;
     111                 : 
     112            1874 :     while (*path == '/' && path[1] == '/')
     113               0 :         path++;
     114             937 :     for (cp = strrchr(path, '/'); cp && cp != path && *(cp - 1) == '/'; cp--);
     115             937 :     if (cp && cp != path) {
     116             936 :         *cp = '\0';
     117            1405 :         if ((lstat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
     118             469 :             mkdirs(path, mode) < 0) {
     119               0 :             return -1;
     120                 :         }
     121             936 :         *cp = '/';
     122                 :     }
     123                 :     
     124             937 :     res = mkdir(path, mode);
     125             937 :     if ((res != 0) && (errno == EEXIST))
     126               9 :       return 0;
     127                 :     else
     128             928 :       return res;
     129                 : }
     130                 : 
     131                 : static uid_t
     132               0 : touid(char *owner)
     133                 : {
     134                 :     struct passwd *pw;
     135                 :     uid_t uid;
     136                 :     char *cp;
     137                 : 
     138               0 :     pw = getpwnam(owner);
     139               0 :     if (pw)
     140               0 :         return pw->pw_uid;
     141               0 :     uid = strtol(owner, &cp, 0);
     142               0 :     if (uid == 0 && cp == owner)
     143               0 :         fail("cannot find uid for %s", owner);
     144               0 :     return uid;
     145                 : }
     146                 : 
     147                 : static gid_t
     148               0 : togid(char *group)
     149                 : {
     150                 :     struct group *gr;
     151                 :     gid_t gid;
     152                 :     char *cp;
     153                 : 
     154               0 :     gr = getgrnam(group);
     155               0 :     if (gr)
     156               0 :         return gr->gr_gid;
     157               0 :     gid = strtol(group, &cp, 0);
     158               0 :     if (gid == 0 && cp == group)
     159               0 :         fail("cannot find gid for %s", group);
     160               0 :     return gid;
     161                 : }
     162                 : 
     163                 : static void
     164              42 : copyfile( char *name, char *toname, mode_t mode, char *group, char *owner,
     165                 :           int dotimes, uid_t uid, gid_t gid )
     166                 : {
     167              42 :   int fromfd, tofd = -1, cc, wc, exists;
     168                 :   char buf[BUFSIZ], *bp;
     169                 :   struct stat sb, tosb;
     170                 :   struct utimbuf utb;
     171                 : 
     172              42 :   exists = (lstat(toname, &tosb) == 0);
     173                 : 
     174              42 :   fromfd = open(name, O_RDONLY);
     175              42 :   if (fromfd < 0 || fstat(fromfd, &sb) < 0)
     176               0 :     fail("cannot access %s", name);
     177              42 :   if (exists) {
     178               0 :     if (S_ISREG(tosb.st_mode)) {
     179                 :       /* See if we can open it. This is more reliable than 'access'. */
     180               0 :       tofd = open(toname, O_CREAT | O_WRONLY, 0666);
     181                 :     }
     182               0 :     if (tofd < 0) {
     183               0 :       (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
     184                 :     }
     185                 :   }
     186              42 :   if (tofd < 0) {
     187              42 :     tofd = open(toname, O_CREAT | O_WRONLY, 0666);
     188              42 :     if (tofd < 0)
     189               0 :       fail("cannot create %s", toname);
     190                 :   }
     191                 : 
     192              42 :   bp = buf;
     193             415 :   while ((cc = read(fromfd, bp, sizeof buf)) > 0)
     194                 :   {
     195             662 :     while ((wc = write(tofd, bp, (unsigned int)cc)) > 0)
     196                 :     {
     197             331 :       if ((cc -= wc) == 0)
     198             331 :         break;
     199               0 :       bp += wc;
     200                 :     }
     201             331 :     if (wc < 0)
     202               0 :       fail("cannot write to %s", toname);
     203                 :   }
     204              42 :   if (cc < 0)
     205               0 :     fail("cannot read from %s", name);
     206                 : 
     207              42 :   if (ftruncate(tofd, sb.st_size) < 0)
     208               0 :     fail("cannot truncate %s", toname);
     209                 : #if !defined(VMS)
     210              42 :   if (dotimes)
     211                 :   {
     212              18 :     utb.actime = sb.st_atime;
     213              18 :     utb.modtime = sb.st_mtime;
     214              18 :     if (utime(toname, &utb) < 0)
     215               0 :       fail("cannot set times of %s", toname);
     216                 :   }
     217                 : #ifdef HAVE_FCHMOD
     218                 :   if (fchmod(tofd, mode) < 0)
     219                 : #else
     220              42 :   if (chmod(toname, mode) < 0)
     221                 : #endif
     222               0 :     fail("cannot change mode of %s", toname);
     223                 : #endif
     224              42 :   if ((owner || group) && fchown(tofd, uid, gid) < 0)
     225               0 :     fail("cannot change owner of %s", toname);
     226                 : 
     227                 :   /* Must check for delayed (NFS) write errors on close. */
     228              42 :   if (close(tofd) < 0)
     229               0 :     fail("cannot write to %s", toname);
     230              42 :   close(fromfd);
     231                 : #if defined(VMS)
     232                 :   if (chmod(toname, (mode & (S_IREAD | S_IWRITE))) < 0)
     233                 :     fail("cannot change mode of %s", toname);
     234                 :   if (dotimes)
     235                 :   {
     236                 :     utb.actime = sb.st_atime;
     237                 :     utb.modtime = sb.st_mtime;
     238                 :     if (utime(toname, &utb) < 0)
     239                 :       fail("cannot set times of %s", toname);
     240                 :   }
     241                 : #endif
     242              42 : }
     243                 : 
     244                 : static void
     245               0 : copydir( char *from, char *to, mode_t mode, char *group, char *owner,
     246                 :          int dotimes, uid_t uid, gid_t gid)
     247                 : {
     248                 :   int i;
     249                 :   DIR *dir;
     250                 :   struct dirent *ep;
     251                 :   struct stat sb;
     252                 :   char *base, *destdir, *direntry, *destentry;
     253                 : 
     254               0 :   base = xbasename(from);
     255                 : 
     256                 :   /* create destination directory */
     257               0 :   destdir = xmalloc((unsigned int)(strlen(to) + 1 + strlen(base) + 1));
     258               0 :   sprintf(destdir, "%s%s%s", to, _DIRECTORY_SEPARATOR, base);
     259               0 :   if (mkdirs(destdir, mode) != 0) {
     260               0 :     fail("cannot make directory %s\n", destdir);
     261               0 :     free(destdir);
     262               0 :     return;
     263                 :   }
     264                 : 
     265               0 :   if (!(dir = opendir(from))) {
     266               0 :     fail("cannot open directory %s\n", from);
     267               0 :     free(destdir);
     268               0 :     return;
     269                 :   }
     270                 : 
     271               0 :   direntry = xmalloc((unsigned int)PATH_MAX);
     272               0 :   destentry = xmalloc((unsigned int)PATH_MAX);
     273                 : 
     274               0 :   while ((ep = readdir(dir)))
     275                 :   {
     276               0 :     if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
     277               0 :       continue;
     278                 : 
     279               0 :     sprintf(direntry, "%s/%s", from, ep->d_name);
     280               0 :     sprintf(destentry, "%s%s%s", destdir, _DIRECTORY_SEPARATOR, ep->d_name);
     281                 : 
     282               0 :     if (stat(direntry, &sb) == 0 && S_ISDIR(sb.st_mode))
     283               0 :       copydir( direntry, destdir, mode, group, owner, dotimes, uid, gid );
     284                 :     else
     285               0 :       copyfile( direntry, destentry, mode, group, owner, dotimes, uid, gid );
     286                 :   }
     287                 : 
     288               0 :   free(destdir);
     289               0 :   free(direntry);
     290               0 :   free(destentry);
     291               0 :   closedir(dir);
     292                 : }
     293                 : 
     294                 : int
     295            1612 : main(int argc, char **argv)
     296                 : {
     297                 :     int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen, bnlen, exists, fromfd, tofd, cc, wc;
     298            1612 :     mode_t mode = 0755;
     299                 :     char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base, *linkname, *bp, buf[BUFSIZ];
     300                 :     uid_t uid;
     301                 :     gid_t gid;
     302                 :     struct stat sb, tosb, fromsb;
     303                 :     struct utimbuf utb;
     304                 : 
     305            1612 :     program = argv[0];
     306            1612 :     cwd = linkname = linkprefix = owner = group = 0;
     307            1612 :     onlydir = dodir = dolink = dorelsymlink = dotimes = lplen = 0;
     308                 : 
     309            5865 :     while ((opt = getopt(argc, argv, "C:DdlL:Rm:o:g:t")) != EOF) {
     310            2641 :         switch (opt) {
     311                 :           case 'C':
     312               0 :             cwd = optarg;
     313               0 :             break;
     314                 :           case 'D':
     315             109 :             onlydir = 1;
     316             109 :             break;
     317                 :           case 'd':
     318               0 :             dodir = 1;
     319               0 :             break;
     320                 :           case 'l':
     321               0 :             dolink = 1;
     322               0 :             break;
     323                 :           case 'L':
     324               0 :             linkprefix = optarg;
     325               0 :             lplen = strlen(linkprefix);
     326               0 :             dolink = 1;
     327               0 :             break;
     328                 :      case 'R':
     329            1477 :             dolink = dorelsymlink = 1;
     330            1477 :             break;
     331                 :           case 'm':
     332            1038 :             mode = strtoul(optarg, &cp, 8);
     333            1038 :             if (mode == 0 && cp == optarg)
     334               0 :                 usage();
     335            1038 :             break;
     336                 :           case 'o':
     337               0 :             owner = optarg;
     338               0 :             break;
     339                 :           case 'g':
     340               0 :             group = optarg;
     341               0 :             break;
     342                 :           case 't':
     343              17 :             dotimes = 1;
     344              17 :             break;
     345                 :           default:
     346               0 :             usage();
     347                 :         }
     348                 :     }
     349                 : 
     350            1612 :     argc -= optind;
     351            1612 :     argv += optind;
     352            1612 :     if (argc < 2 - onlydir)
     353               0 :         usage();
     354                 : 
     355            1612 :     todir = argv[argc-1];
     356            2080 :     if ((stat(todir, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
     357             468 :         mkdirs(todir, 0777) < 0) {
     358               0 :         fail("cannot make directory %s", todir);
     359                 :     }
     360            1612 :     if (onlydir)
     361             109 :         return 0;
     362                 : 
     363            1503 :     if (!cwd) {
     364                 : #ifndef NEEDS_GETCWD
     365                 : #ifndef GETCWD_CANT_MALLOC
     366            1503 :         cwd = getcwd(0, PATH_MAX);
     367                 : #else
     368                 :         cwd = malloc(PATH_MAX + 1);
     369                 :         cwd = getcwd(cwd, PATH_MAX);
     370                 : #endif
     371                 : #else
     372                 :         cwd = malloc(PATH_MAX + 1);
     373                 :         cwd = getwd(cwd);
     374                 : #endif
     375                 :     }
     376                 : 
     377            1503 :     xchdir(todir);
     378                 : #ifndef NEEDS_GETCWD
     379                 : #ifndef GETCWD_CANT_MALLOC
     380            1503 :     todir = getcwd(0, PATH_MAX);
     381                 : #else
     382                 :     todir = malloc(PATH_MAX + 1);
     383                 :     todir = getcwd(todir, PATH_MAX);
     384                 : #endif
     385                 : #else
     386                 :     todir = malloc(PATH_MAX + 1);
     387                 :     todir = getwd(todir);
     388                 : #endif
     389            1503 :     tdlen = strlen(todir);
     390            1503 :     xchdir(cwd);
     391            1503 :     tdlen = strlen(todir);
     392                 : 
     393            1503 :     uid = owner ? touid(owner) : (uid_t)(-1);
     394            1503 :     gid = group ? togid(group) : (gid_t)(-1);
     395                 : 
     396           17511 :     while (--argc > 0) {
     397           14505 :         name = *argv++;
     398           14505 :         len = strlen(name);
     399           14505 :         base = xbasename(name);
     400           14505 :         bnlen = strlen(base);
     401           14505 :         toname = xmalloc((unsigned int)(tdlen + 1 + bnlen + 1));
     402           14505 :         sprintf(toname, "%s%s%s", todir, _DIRECTORY_SEPARATOR, base);
     403           14505 :         exists = (lstat(toname, &tosb) == 0);
     404                 : 
     405           14505 :         if (dodir) {
     406                 :             /* -d means create a directory, always */
     407               0 :             if (exists && !S_ISDIR(tosb.st_mode)) {
     408               0 :                 (void) unlink(toname);
     409               0 :                 exists = 0;
     410                 :             }
     411               0 :             if (!exists && mkdir(toname, mode) < 0)
     412               0 :                 fail("cannot make directory %s", toname);
     413               0 :             if ((owner || group) && chown(toname, uid, gid) < 0)
     414               0 :                 fail("cannot change owner of %s", toname);
     415           14505 :         } else if (dolink) {
     416           14463 :             if (access(name, R_OK) != 0) {
     417               0 :                 fail("cannot access %s", name);
     418                 :             }
     419           14463 :             if (*name == '/') {
     420                 :                 /* source is absolute pathname, link to it directly */
     421           12416 :                 linkname = 0;
     422                 :             } else {
     423            2047 :                 if (linkprefix) {
     424                 :                     /* -L implies -l and prefixes names with a $cwd arg. */
     425               0 :                     len += lplen + 1;
     426               0 :                     linkname = xmalloc((unsigned int)(len + 1));
     427               0 :                     sprintf(linkname, "%s/%s", linkprefix, name);
     428            2047 :                 } else if (dorelsymlink) {
     429                 :                     /* Symlink the relative path from todir to source name. */
     430            2047 :                     linkname = xmalloc(PATH_MAX);
     431                 : 
     432            2047 :                     if (*todir == '/') {
     433                 :                         /* todir is absolute: skip over common prefix. */
     434            2047 :                         lplen = relatepaths(todir, cwd, linkname);
     435            2047 :                         strcpy(linkname + lplen, name);
     436                 :                     } else {
     437                 :                         /* todir is named by a relative path: reverse it. */
     438               0 :                         reversepath(todir, name, len, linkname);
     439               0 :                         xchdir(cwd);
     440                 :                     }
     441                 : 
     442            2047 :                     len = strlen(linkname);
     443                 :                 }
     444            2047 :                 name = linkname;
     445                 :             }
     446                 : 
     447                 :             /* Check for a pre-existing symlink with identical content. */
     448           14672 :             if ((exists && (!S_ISLNK(tosb.st_mode) ||
     449             418 :                                                 readlink(toname, buf, sizeof buf) != len ||
     450           14672 :                                                 strncmp(buf, name, (unsigned int)len) != 0)) || 
     451           27536 :                         ((stat(name, &fromsb) == 0) && 
     452           13073 :                          (fromsb.st_mtime > tosb.st_mtime))) {
     453           13019 :                 (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
     454           13019 :                 exists = 0;
     455                 :             }
     456           14463 :             if (!exists && symlink(name, toname) < 0)
     457               0 :                 fail("cannot make symbolic link %s", toname);
     458                 : #ifdef HAVE_LCHOWN
     459                 :             if ((owner || group) && lchown(toname, uid, gid) < 0)
     460                 :                 fail("cannot change owner of %s", toname);
     461                 : #endif
     462                 : 
     463           14463 :             if (linkname) {
     464            2047 :                 free(linkname);
     465            2047 :                 linkname = 0;
     466                 :             }
     467                 :         } else {
     468                 :             /* Copy from name to toname, which might be the same file. */
     469              42 :       if( stat(name, &sb) == 0 && S_IFDIR & sb.st_mode )
     470                 :       {
     471                 :         /* then is directory: must explicitly create destination dir  */
     472                 :         /*  and manually copy files over                              */
     473               0 :         copydir( name, todir, mode, group, owner, dotimes, uid, gid );
     474                 :       } 
     475                 :       else
     476                 :       {
     477              42 :         copyfile(name, toname, mode, group, owner, dotimes, uid, gid);
     478                 :       }
     479                 :     }
     480                 : 
     481           14505 :         free(toname);
     482                 :     }
     483                 : 
     484            1503 :     free(cwd);
     485            1503 :     free(todir);
     486            1503 :     return 0;
     487                 : }

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