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Diffstat (limited to 'src/clients/kdestroy/kdestroy.c')
-rw-r--r--src/clients/kdestroy/kdestroy.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/src/clients/kdestroy/kdestroy.c b/src/clients/kdestroy/kdestroy.c
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+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* clients/kdestroy/kdestroy.c - Destroy contents of credential cache */
+/*
+ * Copyright 1990 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ * require a specific license from the United States Government.
+ * It is the responsibility of any person or organization contemplating
+ * export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission. Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ */
+
+#include "k5-platform.h"
+#include <krb5.h>
+#include <com_err.h>
+#include <locale.h>
+#include <string.h>
+#include <stdio.h>
+
+#ifdef __STDC__
+#define BELL_CHAR '\a'
+#else
+#define BELL_CHAR '\007'
+#endif
+
+extern int optind;
+extern char *optarg;
+
+#ifndef _WIN32
+#define GET_PROGNAME(x) (strrchr((x), '/') ? strrchr((x), '/')+1 : (x))
+#else
+#define GET_PROGNAME(x) max(max(strrchr((x), '/'), strrchr((x), '\\')) + 1,(x))
+#endif
+
+char *progname;
+
+
+static void usage()
+{
+#define KRB_AVAIL_STRING(x) ((x)?"available":"not available")
+
+ fprintf(stderr, _("Usage: %s [-A] [-q] [-c cache_name]\n"), progname);
+ fprintf(stderr, _("\t-A destroy all credential caches in collection\n"));
+ fprintf(stderr, _("\t-q quiet mode\n"));
+ fprintf(stderr, _("\t-c specify name of credentials cache\n"));
+ exit(2);
+}
+
+/* Print a warning if there are still un-destroyed caches in the collection. */
+static void
+print_remaining_cc_warning(krb5_context context)
+{
+ krb5_error_code retval;
+ krb5_ccache cache;
+ krb5_cccol_cursor cursor;
+
+ retval = krb5_cccol_cursor_new(context, &cursor);
+ if (retval) {
+ com_err(progname, retval, _("while listing credential caches"));
+ exit(1);
+ }
+
+ retval = krb5_cccol_cursor_next(context, cursor, &cache);
+ if (retval == 0 && cache != NULL) {
+ fprintf(stderr,
+ _("Other credential caches present, use -A to destroy all\n"));
+ krb5_cc_close(context, cache);
+ }
+
+ krb5_cccol_cursor_free(context, &cursor);
+}
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ krb5_context kcontext;
+ krb5_error_code retval;
+ int c;
+ krb5_ccache cache = NULL;
+ krb5_cccol_cursor cursor;
+ char *cache_name = NULL;
+ int code = 0;
+ int errflg = 0;
+ int quiet = 0;
+ int all = 0;
+
+ setlocale(LC_ALL, "");
+ progname = GET_PROGNAME(argv[0]);
+
+ while ((c = getopt(argc, argv, "54Aqc:")) != -1) {
+ switch (c) {
+ case 'A':
+ all = 1;
+ break;
+ case 'q':
+ quiet = 1;
+ break;
+ case 'c':
+ if (cache_name) {
+ fprintf(stderr, _("Only one -c option allowed\n"));
+ errflg++;
+ } else {
+ cache_name = optarg;
+ }
+ break;
+ case '4':
+ fprintf(stderr, _("Kerberos 4 is no longer supported\n"));
+ exit(3);
+ break;
+ case '5':
+ break;
+ case '?':
+ default:
+ errflg++;
+ break;
+ }
+ }
+
+ if (optind != argc)
+ errflg++;
+
+ if (errflg) {
+ usage();
+ }
+
+ retval = krb5_init_context(&kcontext);
+ if (retval) {
+ com_err(progname, retval, _("while initializing krb5"));
+ exit(1);
+ }
+
+ if (all) {
+ code = krb5_cccol_cursor_new(kcontext, &cursor);
+ if (code) {
+ com_err(progname, code, _("while listing credential caches"));
+ exit(1);
+ }
+ while ((code = krb5_cccol_cursor_next(kcontext, cursor,
+ &cache)) == 0 && cache != NULL) {
+ code = krb5_cc_get_full_name(kcontext, cache, &cache_name);
+ if (code) {
+ com_err(progname, code, _("composing ccache name"));
+ exit(1);
+ }
+ code = krb5_cc_destroy(kcontext, cache);
+ if (code && code != KRB5_FCC_NOFILE) {
+ com_err(progname, code, _("while destroying cache %s"),
+ cache_name);
+ }
+ krb5_free_string(kcontext, cache_name);
+ }
+ krb5_cccol_cursor_free(kcontext, &cursor);
+ krb5_free_context(kcontext);
+ return 0;
+ }
+
+ if (cache_name) {
+ code = krb5_cc_resolve (kcontext, cache_name, &cache);
+ if (code != 0) {
+ com_err(progname, code, _("while resolving %s"), cache_name);
+ exit(1);
+ }
+ } else {
+ code = krb5_cc_default(kcontext, &cache);
+ if (code) {
+ com_err(progname, code, _("while getting default ccache"));
+ exit(1);
+ }
+ }
+
+ code = krb5_cc_destroy (kcontext, cache);
+ if (code != 0) {
+ com_err (progname, code, _("while destroying cache"));
+ if (code != KRB5_FCC_NOFILE) {
+ if (quiet)
+ fprintf(stderr, _("Ticket cache NOT destroyed!\n"));
+ else {
+ fprintf(stderr, _("Ticket cache %cNOT%c destroyed!\n"),
+ BELL_CHAR, BELL_CHAR);
+ }
+ errflg = 1;
+ }
+ }
+
+ if (!quiet && !errflg)
+ print_remaining_cc_warning(kcontext);
+
+ krb5_free_context(kcontext);
+ return errflg;
+}