#include "kuser_locl.h"
#ifdef HAVE_READLINE
char *readline(char *prompt);
#endif
static int version_flag = 0;
static int help_flag = 0;
static char *cache;
static char *principal;
static char *type;
static int interactive_flag;
static struct getargs args[] = {
{ "type", 't', arg_string, &type,
NP_("type of credential cache", ""), "type" },
{ "cache", 'c', arg_string, &cache,
NP_("name of credential cache", ""), "cache" },
{ "principal", 'p', arg_string, &principal,
NP_("name of principal", ""), "principal" },
{ "interactive", 'i', arg_flag, &interactive_flag,
NP_("interactive selection", ""), NULL },
{ "version", 0, arg_flag, &version_flag,
NP_("print version", ""), NULL },
{ "help", 0, arg_flag, &help_flag, NULL, NULL}
};
static void
usage (int ret) __attribute__((noreturn));
static void
usage (int ret)
{
arg_printusage (args, sizeof(args)/sizeof(*args), NULL, "");
exit (ret);
}
int
main (int argc, char **argv)
{
krb5_context context;
krb5_error_code ret;
krb5_ccache id = NULL;
int optidx = 0;
setprogname (argv[0]);
setlocale (LC_ALL, "");
bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
textdomain("heimdal_kuser");
ret = krb5_init_context (&context);
if (ret == KRB5_CONFIG_BADFORMAT)
errx (1, "krb5_init_context failed to parse configuration file");
else if (ret)
errx(1, "krb5_init_context failed: %d", ret);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
if (argc != 0)
usage (1);
if (cache && principal)
krb5_errx(context, 1,
N_("Both --cache and --principal given, choose one", ""));
if (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 (context, NULL, &cursor);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_cache_get_first");
while (krb5_cc_cache_next (context, cursor, &id) == 0) {
krb5_principal p;
char num[10];
ret = krb5_cc_get_principal(context, id, &p);
if (ret)
continue;
ret = krb5_unparse_name(context, p, &name);
krb5_free_principal(context, p);
if (ret)
krb5_err(context, 1, ret, "krb5_unparse_name");
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(context, cursor);
if (len == 0)
krb5_errx(context, 1, "no credentials to select");
rtbl_format(ct, stdout);
rtbl_destroy(ct);
name = readline("Select number: ");
if (name) {
i = atoi(name);
if (i == 0)
krb5_errx(context, 1, "Cache number '%s' is invalid", name);
if (i > len)
krb5_errx(context, 1, "Cache number '%s' is too large", name);
id = ids[i - 1];
ids[i - 1] = NULL;
} else
krb5_errx(context, 1, "No cache selected");
for (i = 0; i < len; i++)
if (ids[i])
krb5_cc_close(context, ids[i]);
} else if (principal) {
krb5_principal p;
ret = krb5_parse_name(context, principal, &p);
if (ret)
krb5_err (context, 1, ret, "krb5_parse_name: %s", principal);
ret = krb5_cc_cache_match(context, p, &id);
if (ret)
krb5_err (context, 1, ret,
N_("Did not find principal: %s", ""), principal);
krb5_free_principal(context, p);
} else if (cache) {
const krb5_cc_ops *ops;
char *str;
ops = krb5_cc_get_prefix_ops(context, type);
if (ops == NULL)
krb5_err (context, 1, 0, "krb5_cc_get_prefix_ops");
asprintf(&str, "%s:%s", ops->prefix, cache);
if (str == NULL)
krb5_errx(context, 1, N_("out of memory", ""));
ret = krb5_cc_resolve(context, str, &id);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_resolve: %s", str);
free(str);
} else
usage(1);
ret = krb5_cc_switch(context, id);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_switch");
krb5_cc_close(context, id);
return 0;
}