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/*
* Copyright (c) 1987, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 REGENTS OR 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.
*/
#include "misc.h"
#define EMSG ""
APR_DECLARE(apr_status_t) apr_initopt(apr_getopt_t **os, apr_pool_t *cont,
int argc, char *const *argv)
{
*os = apr_palloc(cont, sizeof(apr_getopt_t));
(*os)->cont = cont;
(*os)->err = 1;
(*os)->ind = 1;
(*os)->place = EMSG;
(*os)->argc = argc;
(*os)->argv = argv;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_getopt(apr_getopt_t *os, const char *opts,
char *optch, const char **optarg)
{
const char *p;
const char *oli; /* option letter list index */
if (os->reset || !*os->place) { /* update scanning pointer */
os->reset = 0;
if (os->ind >= os->argc || *(os->place = os->argv[os->ind]) != '-') {
os->place = EMSG;
*optch = os->opt;
return (APR_EOF);
}
if (os->place[1] && *++os->place == '-') { /* found "--" */
++os->ind;
os->place = EMSG;
*optch = os->opt;
return (APR_EOF);
}
} /* option letter okay? */
if ((os->opt = (int) *os->place++) == (int) ':' ||
!(oli = strchr(opts, os->opt))) {
/*
* if the user didn't specify '-' as an option,
* assume it means -1.
*/
if (os->opt == (int) '-') {
*optch = os->opt;
return (APR_EOF);
}
if (!*os->place)
++os->ind;
if (os->err && *opts != ':') {
if (!(p = strrchr(*os->argv, '/')))
p = *os->argv;
else
++p;
(void) fprintf(stderr,
"%s: illegal option -- %c\n", p, os->opt);
}
*optch = os->opt;
return (APR_BADCH);
}
if (*++oli != ':') { /* don't need argument */
*optarg = NULL;
if (!*os->place)
++os->ind;
}
else { /* need an argument */
if (*os->place) /* no white space */
*optarg = os->place;
else if (os->argc <= ++os->ind) { /* no arg */
os->place = EMSG;
if (*opts == ':') {
*optch = os->opt;
return (APR_BADARG);
}
if (os->err) {
if (!(p = strrchr(*os->argv, '/')))
p = *os->argv;
else
++p;
(void) fprintf(stderr,
"%s: option requires an argument -- %c\n",
p, os->opt);
}
*optch = os->opt;
return (APR_BADCH);
}
else /* white space */
*optarg = os->argv[os->ind];
os->place = EMSG;
++os->ind;
}
*optch = os->opt;
return APR_SUCCESS;
}
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