ossp-pkg/rc/rc_opt.c
/* OSSP rc - Run-Command Processor
** Copyright (c) 2002-2003 Ralf S. Engelschall
** Copyright (c) 2002-2003 Cable & Wireless Deutschland GmbH
** Copyright (c) 2002-2003 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_opt.c: Run-Command Processor ISO C source file
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "rc.h"
/* FIXME mlelstv -- why Construct/Destruct vs. New/Delete ? */
/***************************************
* optConstruct(rc_opt_t **) *
* Construct an option *
***************************************/
rc_return_t optConstruct(rc_opt_t **ppOption)
{
assert(*ppOption == NULL); /* Error if constructed already */
*ppOption = malloc(sizeof(**ppOption)); /* Allocate an option instance */
if (!*ppOption)
return(RC_THROW(RC_ERR_MEM));
(*ppOption)->szName = NULL; /* We don't know how much to */
(*ppOption)->szVal = NULL; /* allocate, so do it later */
return(RC_THROW(RC_OK));
}
/***************************************
* optGetXXXX(rc_opt_t *, char **) *
* Option accessors *
***************************************/
rc_return_t optGetname(rc_opt_t *pOption, char **pszName)
{
assert(pOption && pOption->szName);
/* FIXME mlelstv -- why non-shared read ? */
if (!(*pszName = strdup(pOption->szName))) /* Get name from option */
return(RC_THROW(RC_ERR_MEM));
else
return(RC_THROW(RC_OK));
}
rc_return_t optGetval(rc_opt_t *pOption, char **pszVal)
{
assert(pOption && pOption->szVal);
/* FIXME mlelstv -- why non-shared read ? */
if (!(*pszVal = strdup(pOption->szVal))) /* Get value from option */
return(RC_THROW(RC_ERR_MEM));
else
return(RC_THROW(RC_OK));
}
/***************************************
* optSetXXXX(rc_opt_t *, const char *) *
* Option accessors *
***************************************/
rc_return_t optSetname(rc_opt_t *pOption, const char *kszName)
{
if (pOption->szName) /* Guard against leaks */
free(pOption->szName); /* if resetting name */
if (!(pOption->szName = strdup(kszName))) /* Set name of option */
return(RC_THROW(RC_ERR_MEM));
else
return(RC_THROW(RC_OK));
}
rc_return_t optSetval(rc_opt_t *pOption, const char *kszVal)
{
if (pOption->szVal) /* Guard against leaks */
free(pOption->szVal); /* if resetting value */
if (!(pOption->szVal = strdup(kszVal))) /* Set value of option */
return(RC_THROW(RC_ERR_MEM));
else
return(RC_THROW(RC_OK));
}
/***************************************
* optDestruct(rc_opt_t **) *
* Destruct a command line option *
***************************************/
rc_return_t optDestruct(rc_opt_t **ppOption)
{
assert(*ppOption); /* Error if not constructed */
if ((*ppOption)->szName) /* Might not be mallocd yet */
free((*ppOption)->szName);
if ((*ppOption)->szVal) /* Might not be mallocd yet */
free((*ppOption)->szVal);
free(*ppOption); /* Deallocate option and */
*ppOption = NULL; /* clear its reference */
return(RC_THROW(RC_OK));
}
