#ifndef KSTOOL_GETOPT_H #define KSTOOL_GETOPT_H // global extern int opterr, /* if error message should be printed */ optind, /* index into parent argv vector */ optopt, /* character checked for validity */ optreset; /* reset getopt */ extern const char *optarg; /* argument associated with option */ int getopt(int nargc, char *const nargv[], const char *ostr); #endif