--- /dev/null
+/*LINTLIBRARY*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define ERR(s, c) if(opterr){\
+ char errbuf[3];\
+ errbuf[0] = c; errbuf[1] = '\n'; errbuf[2]='\0';\
+ (void) fputs(argv[0],stderr);\
+ (void) fputs(s,stderr);\
+ (void) fputs(errbuf,stderr);}
+
+
+int opterr = 1;
+int optind = 1;
+int optopt;
+char *optarg;
+
+int
+getopt(argc, argv, opts)
+int argc;
+char **argv, *opts;
+{
+ static int sp = 1;
+ register int c;
+ register char *cp;
+
+ if(sp == 1)
+ if(optind >= argc ||
+ argv[optind][0] != '-' || argv[optind][1] == '\0')
+ return(EOF);
+ else if(strcmp(argv[optind], "--") == 0) {
+ optind++;
+ return(EOF);
+ }
+ optopt = c = argv[optind][sp];
+ if(c == ':' || (cp=strchr(opts, c)) == NULL) {
+ ERR(": illegal option -- ", c);
+ if(argv[optind][++sp] == '\0') {
+ optind++;
+ sp = 1;
+ }
+ return('?');
+ }
+ if(*++cp == ':') {
+ if(argv[optind][sp+1] != '\0')
+ optarg = &argv[optind++][sp+1];
+ else if(++optind >= argc) {
+ ERR(": option requires an argument -- ", c);
+ sp = 1;
+ return('?');
+ } else
+ optarg = argv[optind++];
+ sp = 1;
+ } else {
+ if(argv[optind][++sp] == '\0') {
+ sp = 1;
+ optind++;
+ }
+ optarg = NULL;
+ }
+ return(c);
+}