/*  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_anal.c: Run-command processor ISO C source file
*/

#include <stdlib.h>
#include <string.h>

#include "rc.h"         /* Public interfaces        */
#include "rc_config.h"  /* Configuration interface  */


/************************************************
* analNew(void)                                 *
* Construct a new analyser                      *
************************************************/
rc_anal_t *analNew(void)
{
    rc_anal_t *pNew = NULL;

    pNew = malloc(sizeof(rc_anal_t));
    return(pNew);
}

/************************************************
* private analRcs(rc_anal_t **, const char *)   *
* Read a rc file identifier to analyse          *
************************************************/
rc_return_t analRcs(rc_anal_t **ppInst, const char *kszName)
{
    if (!kszName)
        TRACE("Error codition, NULL passed as argument");
/* FIXME Das ist very broken!  */
/*        RC_THROW(RC_WRN_NUL);*/
    else { /* Only enter block with valid string, strdup can't handle NULL */
        (*ppInst)->m_szRcs = strdup(kszName);
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* private analTmp(rc_anal_t **, const char *)   *
* Read a temp file to use for analysis          *
************************************************/
rc_return_t analTmp(rc_anal_t **ppInst, const char *kszName)
{
    if (!kszName) {
        TRACE("Error codition, NULL passed as argument");
/* FIXME Das ist very broken!  */
/*        RC_THROW(RC_WRN_NUL);*/
    }
    else { /* Only enter block with valid string, strdup can't handle NULL */
        (*ppInst)->m_szTmp = strdup(kszName);
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* private analFuncs(rc_anal_t **, const char *) *
* Read a functions file to analyse              *
************************************************/
rc_return_t analFuncs(rc_anal_t **ppInst, const char *kszName)
{
    if (!kszName)
        TRACE("Error codition, NULL passed as argument");
/* FIXME Das ist very broken!  */
/*        RC_THROW(RC_WRN_NUL);*/
    else { /* Only enter block with valid string, strdup can't handle NULL */
        (*ppInst)->m_szFuncs = strdup(kszName);
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* private analLocs(rc_anal_t **, const char *)  *
* Read a location path expression to analyse    *
************************************************/
rc_return_t analLocs(rc_anal_t **ppInst, const char *kszPathexpr)
{
    if (!kszPathexpr)
        TRACE("Error codition, NULL passed as argument");
/* FIXME Das ist very broken!  */
/*        RC_THROW(RC_WRN_NUL);*/
    else { /* Only enter block with valid string, strdup can't handle NULL */
        (*ppInst)->m_szLocs = strdup(kszPathexpr);
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* private analSecs(rc_anal_t **, const char **) *
* Read a sections vector to analyse             *
************************************************/
rc_return_t analSecs(rc_anal_t **ppInst, const char **pkszVector)
{
    ex_t Except;

    if (!pkszVector)
        TRACE("Error codition, NULL passed as argument");
/* FIXME Das ist very broken!  */
/*        RC_THROW(RC_WRN_NUL);*/

    ex_try {    /* Sections are a vector, so we must copy accordingly */
        (*ppInst)->m_pszSecs = vectorCopy(pkszVector);
    }
    ex_catch(Except) {
        rethrow;
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* analParse(rc_anal_t *)                        *
* Parse the analyzed configuration data         *
************************************************/
rc_return_t analParse(rc_anal_t *pInst)
{
    ex_t Except;

    assert(pInst); /* Verify sanity */
    ex_try { /* Read in data from the main configuration */
        analRcs  (&pInst, configGetrcfile());
        analTmp  (&pInst, configGetval(RC_TMP_VAL));
        analFuncs(&pInst, configGetval(RC_FNC_VAL));
        analLocs (&pInst, configGetval(RC_LOC_VAL));
        analSecs (&pInst, configGetsecs());
    }
    ex_catch(Except) {
        rethrow;
    }

    return(RC_THROW(RC_OK));
}

/************************************************
* analDelete(rc_anal_t *)                       *
* Destruct an analyser                          *
************************************************/
rc_return_t analDelete(rc_anal_t *pInst)
{
    if (pInst->m_szRcs)         /* Rc file names       */
        free(pInst->m_szRcs);
    if (pInst->m_szTmp)         /* Temp file name      */
        free(pInst->m_szTmp);
    if (pInst->m_szFuncs)       /* Function file names */
        free(pInst->m_szFuncs);
    if (pInst->m_szLocs)        /* Location path names */
        free(pInst->m_szLocs);
    if (pInst->m_pszSecs)       /* Section names       */
        vectorDel(pInst->m_pszSecs);

    free(pInst);

    return(RC_THROW(RC_OK));
}