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    Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/install.c

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    Revision 532 - (hide annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
    File MIME type: text/plain
    File size: 3738 byte(s) 
    -import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
    1 niro 532 /* 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     #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
    17     static const struct option install_long_options[] = {
    18     { "directory", 0, NULL, 'd' },
    19     { "preserve-timestamps", 0, NULL, 'p' },
    20     { "strip", 0, NULL, 's' },
    21     { "group", 0, NULL, 'g' },
    22     { "mode", 0, NULL, 'm' },
    23     { "owner", 0, NULL, 'o' },
    24     { 0, 0, 0, 0 }
    25     };
    26     #endif
    27    
    28     int install_main(int argc, char **argv)
    29     {
    30     struct stat statbuf;
    31     mode_t mode;
    32     uid_t uid;
    33     gid_t gid;
    34     const char *gid_str;
    35     const char *uid_str;
    36     const char *mode_str;
    37     int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
    38     int ret = EXIT_SUCCESS, flags, i, isdir;
    39    
    40     enum {
    41     OPT_CMD = 0x1,
    42     OPT_DIRECTORY = 0x2,
    43     OPT_PRESERVE_TIME = 0x4,
    44     OPT_STRIP = 0x8,
    45     OPT_GROUP = 0x10,
    46     OPT_MODE = 0x20,
    47     OPT_OWNER = 0x40,
    48     };
    49    
    50     #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
    51     applet_long_options = install_long_options;
    52     #endif
    53     opt_complementary = "?:s--d:d--s";
    54     /* -c exists for backwards compatibility, its needed */
    55     flags = getopt32(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str);
    56    
    57     /* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
    58     if (flags & OPT_PRESERVE_TIME) {
    59     copy_flags |= FILEUTILS_PRESERVE_STATUS;
    60     }
    61     mode = 0666;
    62     if (flags & OPT_MODE) bb_parse_mode(mode_str, &mode);
    63     uid = (flags & OPT_OWNER) ? get_ug_id(uid_str, xuname2uid) : getuid();
    64     gid = (flags & OPT_GROUP) ? get_ug_id(gid_str, xgroup2gid) : getgid();
    65     if (flags & (OPT_OWNER|OPT_GROUP)) umask(0);
    66    
    67     /* Create directories
    68     * don't use bb_make_directory() as it can't change uid or gid
    69     * perhaps bb_make_directory() should be improved.
    70     */
    71     if (flags & OPT_DIRECTORY) {
    72     for (argv += optind; *argv; argv++) {
    73     char *old_argv_ptr = *argv + 1;
    74     char *argv_ptr;
    75     do {
    76     argv_ptr = strchr(old_argv_ptr, '/');
    77     old_argv_ptr = argv_ptr;
    78     if (argv_ptr) {
    79     *argv_ptr = '\0';
    80     old_argv_ptr++;
    81     }
    82     if (mkdir(*argv, mode | 0111) == -1) {
    83     if (errno != EEXIST) {
    84     bb_perror_msg("cannot create %s", *argv);
    85     ret = EXIT_FAILURE;
    86     break;
    87     }
    88     }
    89     if ((flags & (OPT_OWNER|OPT_GROUP))
    90     && lchown(*argv, uid, gid) == -1
    91     ) {
    92     bb_perror_msg("cannot change ownership of %s", *argv);
    93     ret = EXIT_FAILURE;
    94     break;
    95     }
    96     if (argv_ptr) {
    97     *argv_ptr = '/';
    98     }
    99     } while (old_argv_ptr);
    100     }
    101     return ret;
    102     }
    103    
    104     isdir = lstat(argv[argc - 1], &statbuf) < 0 ? 0 : S_ISDIR(statbuf.st_mode);
    105    
    106     for (i = optind; i < argc - 1; i++) {
    107     char *dest;
    108    
    109     dest = argv[argc - 1];
    110     if (isdir)
    111     dest = concat_path_file(argv[argc - 1], basename(argv[i]));
    112     ret |= copy_file(argv[i], dest, copy_flags);
    113    
    114     /* Set the file mode */
    115     if ((flags & OPT_MODE) && chmod(dest, mode) == -1) {
    116     bb_perror_msg("cannot change permissions of %s", dest);
    117     ret = EXIT_FAILURE;
    118     }
    119    
    120     /* Set the user and group id */
    121     if ((flags & (OPT_OWNER|OPT_GROUP))
    122     && lchown(dest, uid, gid) == -1
    123     ) {
    124     bb_perror_msg("cannot change ownership of %s", dest);
    125     ret = EXIT_FAILURE;
    126     }
    127     if (flags & OPT_STRIP) {
    128     if (execlp("strip", "strip", dest, NULL) == -1) {
    129     bb_perror_msg("strip");
    130     ret = EXIT_FAILURE;
    131     }
    132     }
    133     if (ENABLE_FEATURE_CLEAN_UP && isdir) free(dest);
    134     }
    135    
    136     return ret;
    137     }