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

Last change on this file since 1770 was 1770, checked in by Bruno Cornec, 12 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: 5.0 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * adduser - add users to /etc/passwd and /etc/shadow
4 *
5 * Copyright (C) 1999 by Lineo, inc. and John Beppu
6 * Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
7 *
8 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
9 */
10
11#include "libbb.h"
12
13#define OPT_DONT_SET_PASS  (1 << 4)
14#define OPT_DONT_MAKE_HOME (1 << 6)
15
16
17/* remix */
18/* EDR recoded such that the uid may be passed in *p */
19static int passwd_study(const char *filename, struct passwd *p)
20{
21    enum { min = 500, max = 65000 };
22    FILE *passwd;
23    /* We are using reentrant fgetpwent_r() in order to avoid
24     * pulling in static buffers from libc (think static build here) */
25    char buffer[256];
26    struct passwd pw;
27    struct passwd *result;
28
29    passwd = xfopen(filename, "r");
30
31    /* EDR if uid is out of bounds, set to min */
32    if ((p->pw_uid > max) || (p->pw_uid < min))
33        p->pw_uid = min;
34
35    /* stuff to do:
36     * make sure login isn't taken;
37     * find free uid and gid;
38     */
39    while (!fgetpwent_r(passwd, &pw, buffer, sizeof(buffer), &result)) {
40        if (strcmp(pw.pw_name, p->pw_name) == 0) {
41            /* return 0; */
42            return 1;
43        }
44        if ((pw.pw_uid >= p->pw_uid) && (pw.pw_uid < max)
45            && (pw.pw_uid >= min)) {
46            p->pw_uid = pw.pw_uid + 1;
47        }
48    }
49
50    if (p->pw_gid == 0) {
51        /* EDR check for an already existing gid */
52        while (getgrgid(p->pw_uid) != NULL)
53            p->pw_uid++;
54
55        /* EDR also check for an existing group definition */
56        if (getgrnam(p->pw_name) != NULL)
57            return 3;
58
59        /* EDR create new gid always = uid */
60        p->pw_gid = p->pw_uid;
61    }
62
63    /* EDR bounds check */
64    if ((p->pw_uid > max) || (p->pw_uid < min))
65        return 2;
66
67    /* return 1; */
68    return 0;
69}
70
71static void addgroup_wrapper(struct passwd *p)
72{
73    char *cmd;
74
75    cmd = xasprintf("addgroup -g %d \"%s\"", p->pw_gid, p->pw_name);
76    system(cmd);
77    free(cmd);
78}
79
80static void passwd_wrapper(const char *login) ATTRIBUTE_NORETURN;
81
82static void passwd_wrapper(const char *login)
83{
84    static const char prog[] ALIGN1 = "passwd";
85
86    BB_EXECLP(prog, prog, login, NULL);
87    bb_error_msg_and_die("failed to execute '%s', you must set the password for '%s' manually", prog, login);
88}
89
90/* putpwent(3) remix */
91static int adduser(struct passwd *p)
92{
93    FILE *file;
94    int addgroup = !p->pw_gid;
95
96    /* make sure everything is kosher and setup uid && gid */
97    file = xfopen(bb_path_passwd_file, "a");
98    fseek(file, 0, SEEK_END);
99
100    switch (passwd_study(bb_path_passwd_file, p)) {
101        case 1:
102            bb_error_msg_and_die("%s: login already in use", p->pw_name);
103        case 2:
104            bb_error_msg_and_die("illegal uid or no uids left");
105        case 3:
106            bb_error_msg_and_die("%s: group name already in use", p->pw_name);
107    }
108
109    /* add to passwd */
110    if (putpwent(p, file) == -1) {
111        bb_perror_nomsg_and_die();
112    }
113    /* Do fclose even if !ENABLE_FEATURE_CLEAN_UP.
114     * We will exec passwd, files must be flushed & closed before that! */
115    fclose(file);
116
117#if ENABLE_FEATURE_SHADOWPASSWDS
118    /* add to shadow if necessary */
119    file = fopen_or_warn(bb_path_shadow_file, "a");
120    if (file) {
121        fseek(file, 0, SEEK_END);
122        fprintf(file, "%s:!:%ld:%d:%d:%d:::\n",
123                p->pw_name,             /* username */
124                time(NULL) / 86400,     /* sp->sp_lstchg */
125                0,                      /* sp->sp_min */
126                99999,                  /* sp->sp_max */
127                7);                     /* sp->sp_warn */
128        fclose(file);
129    }
130#endif
131
132    /* add to group */
133    /* addgroup should be responsible for dealing w/ gshadow */
134    /* if using a pre-existing group, don't create one */
135    if (addgroup) addgroup_wrapper(p);
136
137    /* Clear the umask for this process so it doesn't
138     * screw up the permissions on the mkdir and chown. */
139    umask(0);
140    if (!(option_mask32 & OPT_DONT_MAKE_HOME)) {
141        /* Set the owner and group so it is owned by the new user,
142           then fix up the permissions to 2755. Can't do it before
143           since chown will clear the setgid bit */
144        if (mkdir(p->pw_dir, 0755)
145        || chown(p->pw_dir, p->pw_uid, p->pw_gid)
146        || chmod(p->pw_dir, 02755)) {
147            bb_perror_msg("%s", p->pw_dir);
148        }
149    }
150
151    if (!(option_mask32 & OPT_DONT_SET_PASS)) {
152        /* interactively set passwd */
153        passwd_wrapper(p->pw_name);
154    }
155
156    return 0;
157}
158
159/*
160 * adduser will take a login_name as its first parameter.
161 *
162 * home
163 * shell
164 * gecos
165 *
166 * can be customized via command-line parameters.
167 */
168int adduser_main(int argc, char **argv);
169int adduser_main(int argc, char **argv)
170{
171    struct passwd pw;
172    const char *usegroup = NULL;
173
174    /* got root? */
175    if (geteuid()) {
176        bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
177    }
178
179    pw.pw_gecos = (char *)"Linux User,,,";
180    pw.pw_shell = (char *)DEFAULT_SHELL;
181    pw.pw_dir = NULL;
182
183    /* exactly one non-option arg */
184    opt_complementary = "=1";
185    getopt32(argv, "h:g:s:G:DSH", &pw.pw_dir, &pw.pw_gecos, &pw.pw_shell, &usegroup);
186    argv += optind;
187
188    /* create a passwd struct */
189    pw.pw_name = argv[0];
190    if (!pw.pw_dir) {
191        /* create string for $HOME if not specified already */
192        pw.pw_dir = xasprintf("/home/%s", argv[0]);
193    }
194    pw.pw_passwd = (char *)"x";
195    pw.pw_uid = 0;
196    pw.pw_gid = usegroup ? xgroup2gid(usegroup) : 0; /* exits on failure */
197
198    /* grand finale */
199    return adduser(&pw);
200}
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