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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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "misc.h"
int opterr = 1, /* if error message should be printed */
optind = 1, /* index into parent argv vector */
optopt, /* character checked for validity */
optreset; /* reset getopt */
char *optarg; /* argument associated with option */
#define EMSG ""
/* ***APRDOC********************************************************
* ap_status_t ap_getopt(ap_context_t *, ap_int32_t, char *const *,
* const char *, ap_int32_t)
* Parse the command line options passed to the program.
* arg 1) The context to operate on.
* arg 2) The number of arguments passed to ap_getopt to parse
* arg 3) The array of command line options to parse
* arg 4) A string of characters that are acceptable options to the program.
* characters followed by ":" are required to have an option
* associated
* arg 5) The next option found. There are four potential values for
* this variable on exit. They are:
* APR_EOF -- No more options to parse
* APR_BADCH -- Found a bad option character
* APR_BADARG -- Missing parameter for the found option
* Other -- The next option found.
* NOTE: Arguments 2 and 3 are most commonly argc and argv from
* main(argc, argv)
*/
ap_status_t ap_getopt(struct context_t *cont, ap_int32_t nargc,
char *const *nargv, const char *ostr, ap_int32_t *rv)
{
char *p;
static char *place = EMSG; /* option letter processing */
char *oli; /* option letter list index */
if (optreset || !*place) { /* update scanning pointer */
optreset = 0;
if (optind >= nargc || *(place = nargv[optind]) != '-') {
place = EMSG;
*rv = optopt;
return (APR_EOF);
}
if (place[1] && *++place == '-') { /* found "--" */
++optind;
place = EMSG;
*rv = optopt;
return (APR_EOF);
}
} /* option letter okay? */
if ((optopt = (int) *place++) == (int) ':' ||
!(oli = strchr(ostr, optopt))) {
/*
* if the user didn't specify '-' as an option,
* assume it means -1.
*/
if (optopt == (int) '-')
*rv = optopt;
return (APR_EOF);
if (!*place)
++optind;
if (opterr && *ostr != ':') {
if (!(p = strrchr(*nargv, '/')))
p = *nargv;
else
++p;
(void) fprintf(stderr,
"%s: illegal option -- %c\n", p, optopt);
}
*rv = optopt;
return APR_BADCH;
}
if (*++oli != ':') { /* don't need argument */
optarg = NULL;
if (!*place)
++optind;
}
else { /* need an argument */
if (*place) /* no white space */
optarg = place;
else if (nargc <= ++optind) { /* no arg */
place = EMSG;
if (*ostr == ':')
*rv = optopt;
return (APR_BADARG);
if (opterr) {
if (!(p = strrchr(*nargv, '/')))
p = *nargv;
else
++p;
(void) fprintf(stderr,
"%s: option requires an argument -- %c\n",
p, optopt);
}
*rv = optopt;
return (APR_BADCH);
}
else /* white space */
optarg = nargv[optind];
place = EMSG;
++optind;
}
*rv = optopt;
return APR_SUCCESS;
}
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