coreutils/install.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  *  Copyright (C) 2003 by Glenn McGrath <bug1@iinet.net.au>
   4  *
   5  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
   6  *
   7  * TODO: -d option, need a way of recursively making directories and changing
   8  *           owner/group, will probably modify bb_make_directory(...)
   9  */
  10
  11 #include "busybox.h"
  12 #include "libcoreutils/coreutils.h"
  13 #include <libgen.h>
  14 #include <getopt.h> /* struct option */
  15
  16 #define INSTALL_OPT_CMD 1
  17 #define INSTALL_OPT_DIRECTORY   2
  18 #define INSTALL_OPT_PRESERVE_TIME       4
  19 #define INSTALL_OPT_STRIP       8
  20 #define INSTALL_OPT_GROUP  16
  21 #define INSTALL_OPT_MODE  32
  22 #define INSTALL_OPT_OWNER  64
  23
  24 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
  25 static const struct option install_long_options[] = {
  26         { "directory",  0,      NULL,   'd' },
  27         { "preserve-timestamps",        0,      NULL,   'p' },
  28         { "strip",      0,      NULL,   's' },
  29         { "group",      0,      NULL,   'g' },
  30         { "mode",       0,      NULL,   'm' },
  31         { "owner",      0,      NULL,   'o' },
  32         { 0,    0,      0,      0 }
  33 };
  34 #endif
  35
  36 int install_main(int argc, char **argv)
  37 {
  38         mode_t mode;
  39         uid_t uid;
  40         gid_t gid;
  41         char *gid_str = "-1";
  42         char *uid_str = "-1";
  43         char *mode_str = "0755";
  44         int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
  45         int ret = EXIT_SUCCESS, flags, i, isdir;
  46
  47 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
  48         applet_long_options = install_long_options;
  49 #endif
  50         opt_complementary = "?:s--d:d--s";
  51         /* -c exists for backwards compatibility, its needed */
  52         flags = getopt32(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str);      /* 'a' must be 2nd */
  53
  54         /* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
  55         if (flags & INSTALL_OPT_PRESERVE_TIME) {
  56                 copy_flags |= FILEUTILS_PRESERVE_STATUS;
  57         }
  58         bb_parse_mode(mode_str, &mode);
  59         gid = get_ug_id(gid_str, bb_xgetgrnam);
  60         uid = get_ug_id(uid_str, bb_xgetpwnam);
  61         umask(0);
  62
  63         /* Create directories
  64          * don't use bb_make_directory() as it can't change uid or gid
  65          * perhaps bb_make_directory() should be improved.
  66          */
  67         if (flags & INSTALL_OPT_DIRECTORY) {
  68                 for (argv += optind; *argv; argv++) {
  69                         char *old_argv_ptr = *argv + 1;
  70                         char *argv_ptr;
  71                         do {
  72                                 argv_ptr = strchr(old_argv_ptr, '/');
  73                                 old_argv_ptr = argv_ptr;
  74                                 if (argv_ptr) {
  75                                         *argv_ptr = '\0';
  76                                         old_argv_ptr++;
  77                                 }
  78                                 if (mkdir(*argv, mode) == -1) {
  79                                         if (errno != EEXIST) {
  80                                                 bb_perror_msg("cannot create %s", *argv);
  81                                                 ret = EXIT_FAILURE;
  82                                                 break;
  83                                         }
  84                                 }
  85                                 else if (lchown(*argv, uid, gid) == -1) {
  86                                         bb_perror_msg("cannot change ownership of %s", *argv);
  87                                         ret = EXIT_FAILURE;
  88                                         break;
  89                                 }
  90                                 if (argv_ptr) {
  91                                         *argv_ptr = '/';
  92                                 }
  93                         } while (old_argv_ptr);
  94                 }
  95                 return(ret);
  96         }
  97
  98         {
  99                 struct stat statbuf;
 100                 isdir = lstat(argv[argc - 1], &statbuf)<0
 101                                         ? 0 : S_ISDIR(statbuf.st_mode);
 102         }
 103         for (i = optind; i < argc - 1; i++) {
 104                 char *dest;
 105
 106                 dest = argv[argc - 1];
 107                 if (isdir) dest = concat_path_file(argv[argc - 1], basename(argv[i]));
 108                 ret |= copy_file(argv[i], dest, copy_flags);
 109
 110                 /* Set the file mode */
 111                 if (chmod(dest, mode) == -1) {
 112                         bb_perror_msg("cannot change permissions of %s", dest);
 113                         ret = EXIT_FAILURE;
 114                 }
 115
 116                 /* Set the user and group id */
 117                 if (lchown(dest, uid, gid) == -1) {
 118                         bb_perror_msg("cannot change ownership of %s", dest);
 119                         ret = EXIT_FAILURE;
 120                 }
 121                 if (flags & INSTALL_OPT_STRIP) {
 122                         if (execlp("strip", "strip", dest, NULL) == -1) {
 123                                 bb_error_msg("strip failed");
 124                                 ret = EXIT_FAILURE;
 125                         }
 126                 }
 127                 if(ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
 128         }
 129
 130         return(ret);
 131 }