- Import Heimdal 1.5 distribution.

1 files changed, 169 insertions, 0 deletions

diff --git a/kuser/kswitch.c b/kuser/kswitch.c
new file mode 100644
index 0000000..974af85
--- /dev/null
+++ b/kuser/kswitch.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2008 - 2010 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "kuser_locl.h"
+#include "kcc-commands.h"
+
+#ifdef HAVE_READLINE
+char *readline(const char *prompt);
+#else
+
+static char *
+readline(const char *prompt)
+{
+    char buf[BUFSIZ];
+    printf ("%s", prompt);
+    fflush (stdout);
+    if(fgets(buf, sizeof(buf), stdin) == NULL)
+	return NULL;
+    buf[strcspn(buf, "\r\n")] = '\0';
+    return strdup(buf);
+}
+
+#endif
+
+/*
+ *
+ */
+
+int
+kswitch(struct kswitch_options *opt, int argc, char **argv)
+{
+    krb5_error_code ret;
+    krb5_ccache id = NULL;
+
+    if (opt->cache_string && opt->principal_string)
+	krb5_errx(kcc_context, 1,
+		  N_("Both --cache and --principal given, choose one", ""));
+
+    if (opt->interactive_flag) {
+	krb5_cc_cache_cursor cursor;
+	krb5_ccache *ids = NULL;
+	size_t i, len = 0;
+	char *name;
+	rtbl_t ct;
+
+	ct = rtbl_create();
+
+	rtbl_add_column(ct, "", 0);
+	rtbl_add_column(ct, "Principal", 0);
+	rtbl_set_column_prefix(ct, "Principal", "    ");
+
+	ret = krb5_cc_cache_get_first(kcc_context, NULL, &cursor);
+	if (ret)
+	    krb5_err(kcc_context, 1, ret, "krb5_cc_cache_get_first");
+
+	while (krb5_cc_cache_next(kcc_context, cursor, &id) == 0) {
+	    krb5_principal p;
+	    char num[10];
+
+	    ret = krb5_cc_get_principal(kcc_context, id, &p);
+	    if (ret)
+		continue;
+
+	    ret = krb5_unparse_name(kcc_context, p, &name);
+	    krb5_free_principal(kcc_context, p);
+
+	    snprintf(num, sizeof(num), "%d", (int)(len + 1));
+	    rtbl_add_column_entry(ct, "", num);
+	    rtbl_add_column_entry(ct, "Principal", name);
+	    free(name);
+
+	    ids = erealloc(ids, (len + 1) * sizeof(ids[0]));
+	    ids[len] = id;
+	    len++;
+	}
+	krb5_cc_cache_end_seq_get(kcc_context, cursor);
+
+	rtbl_format(ct, stdout);
+	rtbl_destroy(ct);
+
+	name = readline("Select number: ");
+	if (name) {
+	    i = atoi(name);
+	    if (i == 0)
+		krb5_errx(kcc_context, 1, "Cache number '%s' is invalid", name);
+	    if (i > len)
+		krb5_errx(kcc_context, 1, "Cache number '%s' is too large", name);
+
+	    id = ids[i - 1];
+	    ids[i - 1] = NULL;
+	} else
+	    krb5_errx(kcc_context, 1, "No cache selected");
+	for (i = 0; i < len; i++)
+	    if (ids[i])
+		krb5_cc_close(kcc_context, ids[i]);
+
+    } else if (opt->principal_string) {
+	krb5_principal p;
+
+	ret = krb5_parse_name(kcc_context, opt->principal_string, &p);
+	if (ret)
+	    krb5_err(kcc_context, 1, ret, "krb5_parse_name: %s",
+		     opt->principal_string);
+
+	ret = krb5_cc_cache_match(kcc_context, p, &id);
+	if (ret)
+	    krb5_err(kcc_context, 1, ret,
+		     N_("Did not find principal: %s", ""),
+		     opt->principal_string);
+
+	krb5_free_principal(kcc_context, p);
+
+    } else if (opt->cache_string) {
+	const krb5_cc_ops *ops;
+	char *str;
+
+	ops = krb5_cc_get_prefix_ops(kcc_context, opt->type_string);
+	if (ops == NULL)
+	    krb5_err(kcc_context, 1, 0, "krb5_cc_get_prefix_ops");
+
+	asprintf(&str, "%s:%s", ops->prefix, opt->cache_string);
+	if (str == NULL)
+	    krb5_errx(kcc_context, 1, N_("out of memory", ""));
+
+	ret = krb5_cc_resolve(kcc_context, str, &id);
+	if (ret)
+	    krb5_err(kcc_context, 1, ret, "krb5_cc_resolve: %s", str);
+
+	free(str);
+    } else {
+	krb5_errx(kcc_context, 1, "missing option for kswitch");
+    }
+
+    ret = krb5_cc_switch(kcc_context, id);
+    if (ret)
+	krb5_err(kcc_context, 1, ret, "krb5_cc_switch");
+
+    return 0;
+}