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    Contents of /trunk/mkinitrd-magellan/busybox/loginutils/deluser.c

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    Revision 532 - (show annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
    File MIME type: text/plain
    File size: 1878 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 /* vi: set sw=4 ts=4: */
    2 /*
    3 * deluser (remove lusers from the system ;) for TinyLogin
    4 *
    5 * Copyright (C) 1999 by Lineo, inc. and John Beppu
    6 * Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
    7 * Unified with delgroup by Tito Ragusa <farmatito@tiscali.it>
    8 *
    9 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
    10 *
    11 */
    12
    13 #include "busybox.h"
    14
    15 static void del_line_matching(const char *login, const char *filename)
    16 {
    17 char *line;
    18 FILE *passwd;
    19 int len = strlen(login);
    20 int found = 0;
    21 llist_t *plist = NULL;
    22
    23 passwd = fopen_or_warn(filename, "r");
    24 if (!passwd) return;
    25
    26 while ((line = xmalloc_fgets(passwd))) {
    27 if (!strncmp(line, login, len)
    28 && line[len] == ':'
    29 ) {
    30 found++;
    31 free(line);
    32 } else {
    33 llist_add_to_end(&plist, line);
    34 }
    35 }
    36
    37 if (!ENABLE_FEATURE_CLEAN_UP) {
    38 if (!found) {
    39 bb_error_msg("can't find '%s' in '%s'", login, filename);
    40 return;
    41 }
    42 passwd = fopen_or_warn(filename, "w");
    43 if (passwd)
    44 while ((line = llist_pop(&plist)))
    45 fputs(line, passwd);
    46 } else {
    47 if (!found) {
    48 bb_error_msg("can't find '%s' in '%s'", login, filename);
    49 goto clean_up;
    50 }
    51 fclose(passwd);
    52 passwd = fopen_or_warn(filename, "w");
    53 if (passwd) {
    54 clean_up:
    55 while ((line = llist_pop(&plist))) {
    56 if (found) fputs(line, passwd);
    57 free(line);
    58 }
    59 fclose(passwd);
    60 }
    61 }
    62 }
    63
    64 int deluser_main(int argc, char **argv)
    65 {
    66 if (argc != 2)
    67 bb_show_usage();
    68
    69 if (ENABLE_DELUSER
    70 && (!ENABLE_DELGROUP || applet_name[3] == 'u')
    71 ) {
    72 del_line_matching(argv[1], bb_path_passwd_file);
    73 if (ENABLE_FEATURE_SHADOWPASSWDS)
    74 del_line_matching(argv[1], bb_path_shadow_file);
    75 }
    76 del_line_matching(argv[1], bb_path_group_file);
    77 if (ENABLE_FEATURE_SHADOWPASSWDS)
    78 del_line_matching(argv[1], bb_path_gshadow_file);
    79
    80 return EXIT_SUCCESS;
    81 }
    82
    83 /* $Id: deluser.c,v 1.1 2007-09-01 22:43:52 niro Exp $ */