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- #include "rc.h"
-
- int rc_opterr = 1;
- int rc_optind = 1;
- int rc_optopt;
- char *rc_optarg;
-
- /* getopt routine courtesy of David Sanderson */
-
- extern int rc_getopt(int argc, char **argv, char *opts) {
- static int sp = 1;
- int c;
- char *cp;
- if (rc_optind == 0) /* reset rc_getopt() */
- rc_optind = sp = 1;
- if (sp == 1)
- if (rc_optind >= argc || argv[rc_optind][0] != '-' || argv[rc_optind][1] == '\0') {
- return -1;
- } else if (strcmp(argv[rc_optind], "--") == 0) {
- rc_optind++;
- return -1;
- }
- rc_optopt = c = argv[rc_optind][sp];
- if (c == ':' || (cp=strchr(opts, c)) == 0) {
- fprint(2, "%s: bad option: -%c\n", argv[0], c);
- if (argv[rc_optind][++sp] == '\0') {
- rc_optind++;
- sp = 1;
- }
- return '?';
- }
- if (*++cp == ':') {
- if (argv[rc_optind][sp+1] != '\0') {
- rc_optarg = &argv[rc_optind++][sp+1];
- } else if (++rc_optind >= argc) {
- fprint(2, "%s: option requires an argument -- %c\n", argv[0], c);
- sp = 1;
- return '?';
- } else
- rc_optarg = argv[rc_optind++];
- sp = 1;
- } else {
- if (argv[rc_optind][++sp] == '\0') {
- sp = 1;
- rc_optind++;
- }
- rc_optarg = NULL;
- }
- return c;
- }
-