diff options
| -rw-r--r-- | ares/ares_getopt.c | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/ares/ares_getopt.c b/ares/ares_getopt.c index 3ed40cd33..fc6e887da 100644 --- a/ares/ares_getopt.c +++ b/ares/ares_getopt.c @@ -40,7 +40,7 @@ */ /* #if !defined(lint) - * static char sccsid[] = "@(#)getopt.c 8.2 (Berkeley) 4/2/94"; + * static char sccsid[] = "@(#)getopt.c 8.2 (Berkeley) 4/2/94"; * #endif */ @@ -53,78 +53,78 @@ extern char *optarg; extern int optind; extern int opterr; -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 -- - * Parse argc/argv argument vector. + * Parse argc/argv argument vector. */ int getopt(nargc, nargv, ostr) - int nargc; - char * const *nargv; - const char *ostr; + int nargc; + char * const *nargv; + const char *ostr; { - 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 */ - 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))) { - /* - * 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 */ + 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))) { + /* + * 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 */ } |