source: MondoRescue/branches/stable/mindi-busybox/loginutils/addgroup.c @ 1770

Last change on this file since 1770 was 1770, checked in by Bruno Cornec, 13 years ago
  • Better output for mindi-busybox revision
  • Remove dummy file created on NFS - report from Arnaud Tiger <arnaud.tiger_at_hp.com>
  • strace useful for debug
  • fix new versions for pb (2.0.0 for mindi and 1.7.2 for mindi-busybox)
  • fix build process for mindi-busybox + options used in that version (dd for label-partitions-as-necessary)
  • fix typo in label-partitions-as-necessary which doesn't seem to work
  • Update to busybox 1.7.2
  • perl is now required at restore time to support uuid swap partitions (and will be used for many other thigs

in the future for sure)

  • next mindi version will be 2.0.0 due to all the changes made in it (udev may break working distros)
  • small optimization in mindi on keyboard handling (one single find instead of multiple)
  • better interaction for USB device when launching mindi manually
  • attempt to automatically guess block disk size for ramdisk
  • fix typos in bkphw
  • Fix the remaining problem with UUID support for swap partitions
  • Updates mondoarchive man page for USB support
  • Adds preliminary Hardware support to mindi (Proliant SSSTK)
  • Tries to add udev support also for rhel4
  • Fix UUID support which was still broken.
  • Be conservative in test for the start-nfs script
  • Update config file for mindi-busybox for 1.7.2 migration
  • Try to run around a busybox bug (1.2.2 pb on inexistant links)
  • Add build content for mindi-busybox in pb
  • Remove distributions content for mindi-busybox
  • Fix a warning on inexistant raidtab
  • Solve problem on tmpfs in restore init (Problem of inexistant symlink and busybox)
  • Create MONDO_CACHE and use it everywhere + creation at start
  • Really never try to eject a USB device
  • Fix a issue with &> usage (replaced with 1> and 2>)
  • Adds magic file to depllist in order to have file working + ldd which helps for debugging issues
  • tty modes correct to avoid sh error messages
  • Use ext3 normally and not ext2 instead
  • USB device should be corrected after reading (take 1st part)
  • Adds a mount_USB_here function derived from mount_CDROM_here
  • usb detection place before /dev detection in device name at restore time
  • Fix when restoring from USB: media is asked in interactive mode
  • Adds USB support for mondorestore
  • mount_cdrom => mount_media
  • elilo.efi is now searched throughout /boot/efi and not in a fixed place as there is no standard
  • untar-and-softlink => untar (+ interface change)
  • suppress useless softlinks creation/removal in boot process
  • avoids udevd messages on groups
  • Increase # of disks to 99 as in mindi at restore time (should be a conf file parameter)
  • skip existing big file creation
  • seems to work correctly for USB mindi boot
  • Adds group and tty link to udev conf
  • Always load usb-torage (even 2.6) to initiate USB bus discovery
  • Better printing of messages
  • Attempt to fix a bug in supporting OpenSusE 10.3 kernel for initramfs (mindi may now use multiple regex for kernel initrd detection)
  • Links were not correctly done as non relative for modules in mindi
  • exclusion of modules denied now works
  • Also create modules in their ordinary place, so that classical modprobe works + copy modules.dep
  • Fix bugs for DENY_MODS handling
  • Add device /dev/console for udev
  • ide-generic should now really be excluded
  • Fix a bug in major number for tty
  • If udev then adds modprobe/insmod to rootfs
  • tty0 is also cretaed with udev
  • ide-generic put rather in DENY_MODS
  • udevd remove from deplist s handled in mindi directly
  • better default for mindi when using --usb
  • Handles dynamically linked busybox (in case we want to use it soon ;-)
  • Adds fixed devices to create for udev
  • ide-generic should not be part of the initrd when using libata v2
  • support a dynamically linked udev (case on Ubuntu 7.10 and Mandriva 2008.0 so should be quite generic) This will give incitation to move to dyn. linked binaries in the initrd which will help for other tasks (ia6 4)
  • Improvement in udev support (do not use cl options not available in busybox)
  • Udev in mindi
    • auto creation of the right links at boot time with udev-links.conf(from Mandriva 2008.0)
    • rework startup of udev as current makes kernel crash (from Mandriva 2008.0)
    • add support for 64 bits udev
  • Try to render MyInsmod? silent at boot time
  • Adds udev support (mandatory for newest distributions to avoid remapping of devices in a different way as on the original system)
  • We also need vaft format support for USB boot
  • Adds libusual support (Ubuntu 7.10 needs it for USB)
  • Improve Ubuntu/Debian? keyboard detection and support
  • pbinit adapted to new pb (0.8.10). Filtering of docs done in it
  • Suppress some mondo warnings and errors on USB again
  • Tries to fix lack of files in deb mindi package
  • Verify should now work for USB devices
  • More log/mesages improvement for USB support
  • - Supress g_erase_tmpdir_and_scratchdir
  • Improve some log messages for USB support
  • Try to improve install in mindi to avoid issues with isolinux.cfg not installed vene if in the pkg :-(
  • Improve mindi-busybox build
  • In conformity with pb 0.8.9
  • Add support for Ubuntu 7.10 in build process
  • Add USB Key button to Menu UI (CD streamer removed)
  • Attempt to fix error messages on tmp/scratch files at the end by removing those dir at the latest possible.
  • Fix a bug linked to the size of the -E param which could be used (Arnaud Tiger/René? Ribaud).
  • Integrate ~/.pbrc content into mondorescue.pb (required project-builder >= 0.8.7)
  • Put mondorescue in conformity with new pb filtering rules
  • Add USB support at restore time (no test done yet). New start-usb script PB varibale added where useful
  • Unmounting USB device before removal of temporary scratchdir
  • Stil refining USB copy back to mondo (one command was not executed)
  • No need to have the image subdor in the csratchdir when USB.
  • umount the USB partition before attempting to use it
  • Remove useless copy from mindi to mondo at end of USB handling

(risky merge, we are raising the limits of 2 diverging branches. The status of stable is not completely sure as such. Will need lots of tests, but it's not yet done :-()
(merge -r1692:1769 $SVN_M/branches/2.2.5)

File size: 4.2 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * addgroup - add groups to /etc/group and /etc/gshadow
4 *
5 * Copyright (C) 1999 by Lineo, inc. and John Beppu
6 * Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
7 * Copyright (C) 2007 by Tito Ragusa <farmatito@tiscali.it>
8 *
9 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
10 *
11 */
12
13#include "libbb.h"
14
15static void xgroup_study(struct group *g)
16{
17    /* Make sure gr_name is unused */
18    if (getgrnam(g->gr_name)) {
19        goto error;
20    }
21
22    /* Check if the desired gid is free
23     * or find the first free one */
24    while (1) {
25        if (!getgrgid(g->gr_gid)) {
26            return; /* found free group: return */
27        }
28        if (option_mask32) {
29            /* -g N, cannot pick gid other than N: error */
30            g->gr_name = itoa(g->gr_gid);
31            goto error;
32        }
33        g->gr_gid++;
34        if (g->gr_gid <= 0) {
35            /* overflowed: error */
36            bb_error_msg_and_die("no gids left");
37        }
38    }
39
40 error:
41    /* exit */
42    bb_error_msg_and_die("group %s already exists", g->gr_name);
43}
44
45/* append a new user to the passwd file */
46static void new_group(char *group, gid_t gid)
47{
48    FILE *file;
49    struct group gr;
50
51    /* make sure gid and group haven't already been allocated */
52    gr.gr_gid = gid;
53    gr.gr_name = group;
54    xgroup_study(&gr);
55
56    /* add entry to group */
57    file = xfopen(bb_path_group_file, "a");
58    /* group:passwd:gid:userlist */
59    fprintf(file, "%s:x:%d:\n", group, gr.gr_gid);
60    if (ENABLE_FEATURE_CLEAN_UP)
61        fclose(file);
62#if ENABLE_FEATURE_SHADOWPASSWDS
63    file = fopen_or_warn(bb_path_gshadow_file, "a");
64    if (file) {
65        fprintf(file, "%s:!::\n", group);
66        if (ENABLE_FEATURE_CLEAN_UP)
67            fclose(file);
68    }
69#endif
70}
71
72#if ENABLE_FEATURE_ADDUSER_TO_GROUP
73static void add_user_to_group(char **args,
74        const char *path,
75        FILE *(*fopen_func)(const char *fileName, const char *mode))
76{
77    char *line;
78    int len = strlen(args[1]);
79    llist_t *plist = NULL;
80    FILE *group_file;
81
82    group_file = fopen_func(path, "r");
83
84    if (!group_file) return;
85
86    while ((line = xmalloc_getline(group_file))) {
87        /* Find the group */
88        if (!strncmp(line, args[1], len)
89         && line[len] == ':'
90        ) {
91            /* Add the new user */
92            line = xasprintf("%s%s%s", line,
93                        last_char_is(line, ':') ? "" : ",",
94                        args[0]);
95        }
96        llist_add_to_end(&plist, line);
97    }
98
99    if (ENABLE_FEATURE_CLEAN_UP) {
100        fclose(group_file);
101        group_file = fopen_func(path, "w");
102        while ((line = llist_pop(&plist))) {
103            if (group_file)
104                fprintf(group_file, "%s\n", line);
105            free(line);
106        }
107        if (group_file)
108            fclose(group_file);
109    } else {
110        group_file = fopen_func(path, "w");
111        if (group_file)
112            while ((line = llist_pop(&plist)))
113                fprintf(group_file, "%s\n", line);
114    }
115}
116#endif
117
118/*
119 * addgroup will take a login_name as its first parameter.
120 *
121 * gid can be customized via command-line parameters.
122 * If called with two non-option arguments, addgroup
123 * will add an existing user to an existing group.
124 */
125int addgroup_main(int argc, char **argv);
126int addgroup_main(int argc, char **argv)
127{
128    char *group;
129    gid_t gid = 0;
130
131    /* need to be root */
132    if (geteuid()) {
133        bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
134    }
135
136    /* Syntax:
137     *  addgroup group
138     *  addgroup -g num group
139     *  addgroup user group
140     * Check for min, max and missing args */
141    opt_complementary = "-1:?2";
142    if (getopt32(argv, "g:", &group)) {
143        gid = xatoul_range(group, 0, ((unsigned long)(gid_t)ULONG_MAX) >> 1);
144    }
145    /* move past the commandline options */
146    argv += optind;
147    argc -= optind;
148
149#if ENABLE_FEATURE_ADDUSER_TO_GROUP
150    if (argc == 2) {
151        struct group *gr;
152
153        if (option_mask32) {
154            /* -g was there, but "addgroup -g num user group"
155             * is a no-no */
156            bb_show_usage();
157        }
158
159        /* check if group and user exist */
160        xuname2uid(argv[0]); /* unknown user: exit */
161        xgroup2gid(argv[1]); /* unknown group: exit */
162        /* check if user is already in this group */
163        gr = getgrnam(argv[1]);
164        for (; *(gr->gr_mem) != NULL; (gr->gr_mem)++) {
165            if (!strcmp(argv[0], *(gr->gr_mem))) {
166                /* user is already in group: do nothing */
167                return EXIT_SUCCESS;
168            }
169        }
170        add_user_to_group(argv, bb_path_group_file, xfopen);
171#if ENABLE_FEATURE_SHADOWPASSWDS
172        add_user_to_group(argv, bb_path_gshadow_file, fopen_or_warn);
173#endif /* ENABLE_FEATURE_SHADOWPASSWDS */
174    } else
175#endif /* ENABLE_FEATURE_ADDUSER_TO_GROUP */
176        new_group(argv[0], gid);
177
178    /* Reached only on success */
179    return EXIT_SUCCESS;
180}
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