diff options
Diffstat (limited to 'src/utils/getopt.c')
| -rw-r--r-- | src/utils/getopt.c | 92 |
1 files changed, 51 insertions, 41 deletions
diff --git a/src/utils/getopt.c b/src/utils/getopt.c index 793415c2afe..f81b35503b0 100644 --- a/src/utils/getopt.c +++ b/src/utils/getopt.c @@ -6,22 +6,22 @@ * 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. + * 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. + * 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: + * 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. + * 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 + * 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) @@ -33,21 +33,22 @@ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95"; -#endif /* LIBC_SCCS and not lint */ + +#endif /* LIBC_SCCS and not lint */ #include <stdio.h> #include <stdlib.h> #include <string.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 */ +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 BADCH (int)'?' -#define BADARG (int)':' -#define EMSG "" +#define BADCH (int)'?' +#define BADARG (int)':' +#define EMSG "" /* * getopt -- @@ -55,63 +56,72 @@ char *optarg; /* argument associated with option */ */ int getopt(nargc, nargv, ostr) - int nargc; - char * const *nargv; - const char *ostr; +int nargc; +char *const * nargv; +const char *ostr; { extern char *__progname; - static char *place = EMSG; /* option letter processing */ - char *oli; /* option letter list index */ + static char *place = EMSG; /* option letter processing */ + char *oli; /* option letter list index */ - if (optreset || !*place) { /* update scanning pointer */ + if (optreset || !*place) + { /* update scanning pointer */ optreset = 0; - if (optind >= nargc || *(place = nargv[optind]) != '-') { + if (optind >= nargc || *(place = nargv[optind]) != '-') + { place = EMSG; return -1; } - if (place[1] && *++place == '-') { /* found "--" */ + if (place[1] && *++place == '-') + { /* found "--" */ ++optind; place = EMSG; return -1; } - } /* option letter okay? */ - if ((optopt = (int)*place++) == (int)':' || - !(oli = strchr(ostr, optopt))) { + } /* 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 the user didn't specify '-' as an option, assume it means + * -1. */ - if (optopt == (int)'-') + if (optopt == (int) '-') return -1; if (!*place) ++optind; if (opterr && *ostr != ':') - (void)fprintf(stderr, - "%s: illegal option -- %c\n", __progname, optopt); + (void) fprintf(stderr, + "%s: illegal option -- %c\n", __progname, optopt); return BADCH; } - if (*++oli != ':') { /* don't need argument */ + if (*++oli != ':') + { /* don't need argument */ optarg = NULL; if (!*place) ++optind; } - else { /* need an argument */ - if (*place) /* no white space */ + else + { /* need an argument */ + if (*place) /* no white space */ optarg = place; - else if (nargc <= ++optind) { /* no arg */ + else if (nargc <= ++optind) + { /* no arg */ place = EMSG; if (*ostr == ':') return BADARG; if (opterr) - (void)fprintf(stderr, - "%s: option requires an argument -- %c\n", - __progname, optopt); + (void) fprintf(stderr, + "%s: option requires an argument -- %c\n", + __progname, optopt); return BADCH; } - else /* white space */ + else +/* white space */ optarg = nargv[optind]; place = EMSG; ++optind; } - return optopt; /* dump back option letter */ + return optopt; /* dump back option letter */ } |