#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->version_flag) {
print_version(NULL);
exit(0);
}
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_by_id(ct, 0, "#", 0);
rtbl_add_column_by_id(ct, 1, "Principal", 0);
rtbl_set_column_affix_by_id(ct, 1, " ", "");
rtbl_add_column_by_id(ct, 2, "Type", 0);
rtbl_set_column_affix_by_id(ct, 2, " ", "");
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);
if (ret)
continue;
snprintf(num, sizeof(num), "%d", (int)(len + 1));
rtbl_add_column_entry_by_id(ct, 0, num);
rtbl_add_column_entry_by_id(ct, 1, name);
rtbl_add_column_entry_by_id(ct, 2, krb5_cc_get_type(kcc_context, id));
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, *str2 = NULL;
ops = krb5_cc_get_prefix_ops(kcc_context, opt->cache_string);
if (ops == NULL) {
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(&str2, "%s:%s", ops->prefix, opt->cache_string);
if (str2 == NULL)
krb5_errx(kcc_context, 1, N_("out of memory", ""));
str = str2;
} else {
str = opt->cache_string;
}
ret = krb5_cc_resolve(kcc_context, str, &id);
if (ret)
krb5_err(kcc_context, 1, ret, "krb5_cc_resolve: %s", str);
if (str2)
free(str2);
} 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;
}