/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#include    <k5-int.h>
#include    <unistd.h>

#include <kadm5/admin.h>
#include <kadm5/server_internal.h>
#include    <kdb.h>
#include    "import_err.h"
#include    "kdb5_util.h"
#include    "nstrtok.h"

#define LINESIZE        32768 /* XXX */

static int parse_pw_hist_ent(current, hist)
    char *current;
    osa_pw_hist_ent *hist;
{
    int tmp, i, j, ret;
    char *cp;

    ret = 0;
    hist->n_key_data = 1;

    hist->key_data = (krb5_key_data *) malloc(hist->n_key_data *
                                              sizeof(krb5_key_data));
    if (hist->key_data == NULL)
        return ENOMEM;
    memset(hist->key_data, 0, sizeof(krb5_key_data)*hist->n_key_data);

    for (i = 0; i < hist->n_key_data; i++) {
        krb5_key_data *key_data = &hist->key_data[i];

        key_data->key_data_ver = 1;

        if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
            com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
            ret = IMPORT_FAILED;
            goto done;
        }
        key_data->key_data_type[0] = atoi(cp);

        if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
            com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
            ret =  IMPORT_FAILED;
            goto done;
        }
        key_data->key_data_length[0] = atoi(cp);

        if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
            com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
            ret = IMPORT_FAILED;
            goto done;
        }
        if(!(key_data->key_data_contents[0] =
             (krb5_octet *) malloc(key_data->key_data_length[0]+1))) {
            ret = ENOMEM;
            goto done;
        }
        for(j = 0; j < key_data->key_data_length[0]; j++) {
            if(sscanf(cp, "%02x", &tmp) != 1) {
                com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
                ret = IMPORT_FAILED;
                goto done;
            }
            key_data->key_data_contents[0][j] = tmp;
            cp = strchr(cp, ' ') + 1;
        }
    }

done:
    return ret;
}

/*
 * Function: parse_principal
 *
 * Purpose: parse principal line in db dump file
 *
 * Arguments:
 *      <return value>  0 on success, error code on failure
 *
 * Requires:
 *      principal database to be opened.
 *      nstrtok(3) to have a valid buffer in memory.
 *
 * Effects:
 *      [effects]
 *
 * Modifies:
 *      [modifies]
 *
 */
int process_ov_principal(kcontext, fname, filep, verbose, linenop)
    krb5_context        kcontext;
    const char          *fname;
    FILE                *filep;
    krb5_boolean        verbose;
    int                 *linenop;
{
    XDR                     xdrs;
    osa_princ_ent_t         rec;
    krb5_error_code         ret;
    krb5_tl_data            tl_data;
    krb5_principal          princ;
    krb5_db_entry           *kdb = NULL;
    char                    *current = 0;
    char                    *cp;
    unsigned int            x;
    char                    line[LINESIZE];

    if (fgets(line, LINESIZE, filep) == (char *) NULL) {
        return IMPORT_BAD_FILE;
    }
    if((cp = nstrtok(line, "\t")) == NULL)
        return IMPORT_BAD_FILE;
    if((rec = (osa_princ_ent_t) malloc(sizeof(osa_princ_ent_rec))) == NULL)
        return ENOMEM;
    memset(rec, 0, sizeof(osa_princ_ent_rec));
    if((ret = krb5_parse_name(kcontext, cp, &princ)))
        goto done;
    krb5_unparse_name(kcontext, princ, &current);
    if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
        com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
        ret =  IMPORT_FAILED;
        goto done;
    } else {
        if(strcmp(cp, "")) {
            if((rec->policy = strdup(cp)) == NULL)  {
                ret = ENOMEM;
                goto done;
            }
        } else rec->policy = NULL;
    }
    if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
        com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
        ret = IMPORT_FAILED;
        goto done;
    }
    rec->aux_attributes = strtol(cp, (char  **)NULL, 16);
    if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
        com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
        ret = IMPORT_FAILED;
        goto done;
    }
    rec->old_key_len = atoi(cp);
    if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
        com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
        ret = IMPORT_FAILED;
        goto done;
    }
    rec->old_key_next = atoi(cp);
    if((cp = nstrtok((char *) NULL, "\t")) == NULL) {
        com_err(NULL, IMPORT_BAD_RECORD, "%s", current);
        ret = IMPORT_FAILED;
        goto done;
    }
    rec->admin_history_kvno = atoi(cp);
    if (! rec->old_key_len) {
        rec->old_keys = NULL;
    } else {
        if(!(rec->old_keys = (osa_pw_hist_ent *)
             malloc(sizeof(osa_pw_hist_ent) * rec->old_key_len))) {
            ret = ENOMEM;
            goto done;
        }
        memset(rec->old_keys,0,
               sizeof(osa_pw_hist_ent) * rec->old_key_len);
        for(x = 0; x < rec->old_key_len; x++)
            parse_pw_hist_ent(current, &rec->old_keys[x]);
    }

    xdralloc_create(&xdrs, XDR_ENCODE);
    if (! xdr_osa_princ_ent_rec(&xdrs, rec)) {
        xdr_destroy(&xdrs);
        ret = KADM5_XDR_FAILURE;
        goto done;
    }

    tl_data.tl_data_type = KRB5_TL_KADM_DATA;
    tl_data.tl_data_length = xdr_getpos(&xdrs);
    tl_data.tl_data_contents = (krb5_octet *) xdralloc_getdata(&xdrs);

    ret = krb5_db_get_principal(kcontext, princ, 0, &kdb);
    if (ret)
        goto done;

    ret = krb5_dbe_update_tl_data(kcontext, kdb, &tl_data);
    if (ret)
        goto done;

    ret = krb5_db_put_principal(kcontext, kdb);
    if (ret)
        goto done;

    xdr_destroy(&xdrs);

    (*linenop)++;

done:
    free(current);
    krb5_free_principal(kcontext, princ);
    osa_free_princ_ent(rec);
    krb5_db_free_principal(kcontext, kdb);
    return ret;
}