/*  OSSP rc - Run-command processor
**  Copyright (c) 2002 Ralf S. Engelschall
**  Copyright (c) 2002 Cable & Wireless Deutschland GmbH
**  Copyright (c) 2002 The OSSP Project <http://www.ossp.org/>
**
**  This file is part of OSSP rc, a portable Run-command processor
**  which can be found at http://www.ossp.org/pkg/lib/rc/
**
**  Permission to use, copy, modify, and distribute this software for
**  any purpose with or without fee is hereby granted, provided that
**  the above copyright notice and this permission notice appear in all
**  copies.
**
**  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
**  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.
**
**  rc_lab.c: Run-command processor ISO C source file
*/

#include <string.h> /* For string copy and such data ops */
#include <stdlib.h> /* For memory ops */

#include "rc.h"     /* Public Rc interface */


/************************************************
* labelNew(void)                                *
* Construct a new label                         *
************************************************/
rc_label_t *labelNew(const char *szName)
{
    rc_label_t *pLab = NULL;

    pLab = (rc_label_t *)calloc(1, sizeof(rc_label_t));

    if (pLab) {
        pLab->m_szName = malloc((strlen(szName) + 1) * sizeof(char));
        strcpy(pLab->m_szName, szName);
    }
    else
        RC_THROW(RC_ERR_MEM);

    return(pLab);
}

/****************************************************
* labelAppendsec(rc_label_t *, rc_section_t *)      *
* Append a section to this label                    *
****************************************************/
rc_return_t labelAppendsec(rc_label_t *pLabel, rc_section_t *pInsec)
{
    assert(pLabel); /* Label parameter must be valid */
    if (!pInsec)    /* Check sanity */
        return(RC_THROW(RC_ERR_USE));

    /* First make our vector larger to hold one more section */
    pLabel->m_ppSecvec = realloc(pLabel->m_ppSecvec, sizeof(rc_section_t *)\
        * (pLabel->m_nSecs + 1));
    pLabel->m_ppSecvec[pLabel->m_nSecs] = sectionNew(pInsec->m_szName);

    /* Simple value copy */
    pLabel->m_ppSecvec[pLabel->m_nSecs]->m_nPri  = pInsec->m_nPri;
    pLabel->m_ppSecvec[pLabel->m_nSecs]->m_nUid  = pInsec->m_nUid;
    pLabel->m_ppSecvec[pLabel->m_nSecs]->m_Bytes = pInsec->m_Bytes;

    /* Deep copy of user name */
    if (pInsec->m_szLogin) {
        pLabel->m_ppSecvec[pLabel->m_nSecs]->m_szLogin =\
            malloc((strlen(pInsec->m_szLogin) + sizeof(char)) * sizeof(char));
        strcpy(pLabel->m_ppSecvec[pLabel->m_nSecs]->m_szLogin, pInsec->m_szLogin);
    }

    /* Deep copy of section text */
    if (pInsec->m_szData) {
        pLabel->m_ppSecvec[pLabel->m_nSecs]->m_szData =\
            malloc((strlen(pInsec->m_szData) + sizeof(char)) * sizeof(char));
        strcpy(pLabel->m_ppSecvec[pLabel->m_nSecs]->m_szData, pInsec->m_szData);
    }

    /* Finally increment section count */
    pLabel->m_nSecs++;

    return(RC_THROW(RC_OK));
}

/************************************************
* labelDelete(rc_label_t *)                     *
* Destruct a label                              *
************************************************/
rc_return_t labelDelete(rc_label_t *pLab)
{
    int nSecs = pLab->m_nSecs;

    /* Cleanup our junk */
    if (pLab) {
        pLab->m_nSecs = 0;    /* Blank the section count */
        if (pLab->m_szName)   /* Destroy the rc name */
            free(pLab->m_szName);
        while (nSecs-- > 0) { /* Destroy the section vector */
            if (pLab->m_ppSecvec[nSecs]) {
                sectionDelete(pLab->m_ppSecvec[nSecs]);
                pLab->m_ppSecvec[nSecs] = NULL;
            }
        }
        free(pLab->m_ppSecvec);
        pLab->m_ppSecvec = NULL;
        free(pLab);
    }
    else    /* Dumbass passed an empty label object */
        assert(FALSE);

    return(RC_THROW(RC_OK));
}