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Diffstat (limited to 'compat.c')
| -rw-r--r-- | compat.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/compat.c b/compat.c new file mode 100644 index 0000000..13794b4 --- /dev/null +++ b/compat.c @@ -0,0 +1,231 @@ +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2000-2002 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Apache" and "Apache Software Foundation" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache", + * nor may "Apache" appear in their name, without prior written + * permission of the Apache Software Foundation. + * + * 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 APACHE SOFTWARE FOUNDATION OR + * ITS 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * <http://www.apache.org/>. + * + * Portions of this software are based upon public domain software + * originally written at the National Center for Supercomputing Applications, + * University of Illinois, Urbana-Champaign. + */ + +#ifdef _WIN32 + +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#define OPTERRCOLON (1) +#define OPTERRNF (2) +#define OPTERRARG (3) + +char *optarg; +int optreset = 0; +int optind = 1; +int opterr = 1; +int optopt; + +static int +optiserr(int argc, char * const *argv, int oint, const char *optstr, + int optchr, int err) +{ + if(opterr) + { + fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1); + switch(err) + { + case OPTERRCOLON: + fprintf(stderr, ": in flags\n"); + break; + case OPTERRNF: + fprintf(stderr, "option not found %c\n", argv[oint][optchr]); + break; + case OPTERRARG: + fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]); + break; + default: + fprintf(stderr, "unknown\n"); + break; + } + } + optopt = argv[oint][optchr]; + return('?'); +} + + + +int +getopt(int argc, char* const *argv, const char *optstr) +{ + static int optchr = 0; + static int dash = 0; /* have already seen the - */ + + char *cp; + + if (optreset) + optreset = optchr = dash = 0; + if(optind >= argc) + return(EOF); + if(!dash && (argv[optind][0] != '-')) + return(EOF); + if(!dash && (argv[optind][0] == '-') && !argv[optind][1]) + { + /* + * use to specify stdin. Need to let pgm process this and + * the following args + */ + return(EOF); + } + if((argv[optind][0] == '-') && (argv[optind][1] == '-')) + { + /* -- indicates end of args */ + optind++; + return(EOF); + } + if(!dash) + { + assert((argv[optind][0] == '-') && argv[optind][1]); + dash = 1; + optchr = 1; + } + + /* Check if the guy tries to do a -: kind of flag */ + assert(dash); + if(argv[optind][optchr] == ':') + { + dash = 0; + optind++; + return(optiserr(argc, argv, optind-1, optstr, optchr, OPTERRCOLON)); + } + if(!(cp = strchr(optstr, argv[optind][optchr]))) + { + int errind = optind; + int errchr = optchr; + + if(!argv[optind][optchr+1]) + { + dash = 0; + optind++; + } + else + optchr++; + return(optiserr(argc, argv, errind, optstr, errchr, OPTERRNF)); + } + if(cp[1] == ':') + { + dash = 0; + optind++; + if(optind == argc) + return(optiserr(argc, argv, optind-1, optstr, optchr, OPTERRARG)); + optarg = argv[optind++]; + return(*cp); + } + else + { + if(!argv[optind][optchr+1]) + { + dash = 0; + optind++; + } + else + optchr++; + return(*cp); + } + assert(0); + return(0); +} + +#ifdef TESTGETOPT +int + main (int argc, char **argv) + { + int c; + extern char *optarg; + extern int optind; + int aflg = 0; + int bflg = 0; + int errflg = 0; + char *ofile = NULL; + + while ((c = getopt(argc, argv, "abo:")) != EOF) + switch (c) { + case 'a': + if (bflg) + errflg++; + else + aflg++; + break; + case 'b': + if (aflg) + errflg++; + else + bflg++; + break; + case 'o': + ofile = optarg; + (void)printf("ofile = %s\n", ofile); + break; + case '?': + errflg++; + } + if (errflg) { + (void)fprintf(stderr, + "usage: cmd [-a|-b] [-o <filename>] files...\n"); + exit (2); + } + for ( ; optind < argc; optind++) + (void)printf("%s\n", argv[optind]); + return 0; + } + +#endif /* TESTGETOPT */ + +#endif /* WIN32 */ |