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https://github.com/sheumann/hush.git
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84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* deluser (remove lusers from the system ;) for TinyLogin
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*
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* Copyright (C) 1999 by Lineo, inc. and John Beppu
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* Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
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* Unified with delgroup by Tito Ragusa <farmatito@tiscali.it>
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*
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* Licensed under GPL version 2, see file LICENSE in this tarball for details.
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*
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*/
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#include "busybox.h"
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static void del_line_matching(const char *login, const char *filename)
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{
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char *line;
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FILE *passwd;
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int len = strlen(login);
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int found = 0;
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llist_t *plist = NULL;
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passwd = fopen_or_warn(filename, "r");
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if (!passwd) return;
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while ((line = xmalloc_fgets(passwd))) {
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if (!strncmp(line, login, len)
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&& line[len] == ':'
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) {
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found++;
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free(line);
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} else {
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llist_add_to_end(&plist, line);
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}
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}
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if (!ENABLE_FEATURE_CLEAN_UP) {
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if (!found) {
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bb_error_msg("can't find '%s' in '%s'", login, filename);
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return;
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}
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passwd = fopen_or_warn(filename, "w");
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if (passwd)
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while ((line = llist_pop(&plist)))
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fputs(line, passwd);
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} else {
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if (!found) {
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bb_error_msg("can't find '%s' in '%s'", login, filename);
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goto clean_up;
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}
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fclose(passwd);
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passwd = fopen_or_warn(filename, "w");
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if (passwd) {
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clean_up:
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while ((line = llist_pop(&plist))) {
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if (found) fputs(line, passwd);
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free(line);
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}
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fclose(passwd);
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}
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}
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}
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int deluser_main(int argc, char **argv);
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int deluser_main(int argc, char **argv)
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{
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if (argc != 2)
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bb_show_usage();
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if (ENABLE_DELUSER
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&& (!ENABLE_DELGROUP || applet_name[3] == 'u')
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) {
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del_line_matching(argv[1], bb_path_passwd_file);
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if (ENABLE_FEATURE_SHADOWPASSWDS)
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del_line_matching(argv[1], bb_path_shadow_file);
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}
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del_line_matching(argv[1], bb_path_group_file);
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if (ENABLE_FEATURE_SHADOWPASSWDS)
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del_line_matching(argv[1], bb_path_gshadow_file);
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return EXIT_SUCCESS;
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}
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