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| author | Remko Tronçon <git@el-tramo.be> | 2009-12-03 20:06:33 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2009-12-03 20:06:33 (GMT) |
| commit | 5df50c35e1baeee517a0895a2c8a2cc2052b087f (patch) | |
| tree | b9d90fd123ec251ebb930cfcfaa2ffc805433812 /3rdParty/CAres/src/ares_getopt.c | |
| parent | 9b3edba27b8683f1a87ad66ee05802dd93bbbdfc (diff) | |
| download | swift-contrib-5df50c35e1baeee517a0895a2c8a2cc2052b087f.zip swift-contrib-5df50c35e1baeee517a0895a2c8a2cc2052b087f.tar.bz2 | |
Added C-Ares.
Diffstat (limited to '3rdParty/CAres/src/ares_getopt.c')
| -rw-r--r-- | 3rdParty/CAres/src/ares_getopt.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/3rdParty/CAres/src/ares_getopt.c b/3rdParty/CAres/src/ares_getopt.c new file mode 100644 index 0000000..67e1be7 --- /dev/null +++ b/3rdParty/CAres/src/ares_getopt.c @@ -0,0 +1,123 @@ +/* + * Original file name getopt.c Initial import into the c-ares source tree + * on 2007-04-11. Lifted from version 5.2 of the 'Open Mash' project with + * the modified BSD license, BSD license without the advertising clause. + * + * $Id: ares_getopt.c,v 1.9 2009-11-22 03:41:26 yangtse Exp $ + */ + +/* + * getopt.c -- + * + * Standard UNIX getopt function. Code is from BSD. + * + * Copyright (c) 1987-2001 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: + * + * A. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * B. 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. + * C. Neither the names of the copyright holders 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 COPYRIGHT HOLDERS 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. + */ + +/* #if !defined(lint) + * static char sccsid[] = "@(#)getopt.c 8.2 (Berkeley) 4/2/94"; + * #endif + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "ares_getopt.h" + +int opterr = 1, /* if error message should be printed */ + optind = 1; /* index into parent argv vector */ +int optopt = 0; /* character checked for validity */ +static int optreset; /* reset getopt */ +char *optarg; /* argument associated with option */ + +#define BADCH (int)'?' +#define BADARG (int)':' +#define EMSG (char *)"" + +/* + * ares_getopt -- + * Parse argc/argv argument vector. + */ +int +ares_getopt(int nargc, char * const nargv[], const char *ostr) +{ + 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; + return (EOF); + } + if (place[1] && *++place == '-') { /* found "--" */ + ++optind; + place = EMSG; + return (EOF); + } + } /* option letter okay? */ + if ((optopt = (int)*place++) == (int)':' || + (oli = strchr(ostr, optopt)) == NULL) { + /* + * if the user didn't specify '-' as an option, + * assume it means EOF. + */ + if (optopt == (int)'-') + return (EOF); + if (!*place) + ++optind; + if (opterr && *ostr != ':') + (void)fprintf(stderr, + "%s: illegal option -- %c\n", __FILE__, optopt); + return (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 == ':') + return (BADARG); + if (opterr) + (void)fprintf(stderr, + "%s: option requires an argument -- %c\n", + __FILE__, optopt); + return (BADCH); + } + else /* white space */ + optarg = nargv[optind]; + place = EMSG; + ++optind; + } + return (optopt); /* dump back option letter */ +} |