krb5_ccache_intro (3) - Linux Manuals

krb5_ccache_intro: The credential cache functions

NAME

krb5_ccache_intro - The credential cache functions

Kerberos credential caches

krb5_ccache structure holds a Kerberos credential cache.

Heimdal support the follow types of credential caches:

•

SCC Store the credential in a database

•

FILE Store the credential in memory

•

MEMORY Store the credential in memory

•

API A credential cache server based solution for Mac OS X

•

KCM A credential cache server based solution for all platforms

Example

#include <krb5.h>

int
main (int argc, char **argv)
{
    krb5_context context;
    krb5_cc_cursor cursor;
    krb5_error_code ret;
    krb5_ccache id;
    krb5_creds creds;

    if (krb5_init_context (&context) != 0)
        errx(1, "krb5_context");

    ret = krb5_cc_default (context, &id);
    if (ret)
        krb5_err(context, 1, ret, "krb5_cc_default");

    ret = krb5_cc_start_seq_get(context, id, &cursor);
    if (ret)
        krb5_err(context, 1, ret, "krb5_cc_start_seq_get");

    while((ret = krb5_cc_next_cred(context, id, &cursor, &creds)) == 0){
        char *principal;

        krb5_unparse_name(context, creds.server, &principal);
        printf("principal: %s\n", principal);
        free(principal);
        krb5_free_cred_contents (context, &creds);
    }
    ret = krb5_cc_end_seq_get(context, id, &cursor);
    if (ret)
        krb5_err(context, 1, ret, "krb5_cc_end_seq_get");

    krb5_cc_close(context, id);

    krb5_free_context(context);
    return 0;
}
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