getopt.c File Reference

#include <rz_util.h>

Go to the source code of this file.

Macros
#define	BADCH   (int)'?'
#define	BADARG   (int)':'
#define	EMSG   ""

Functions
RZ_API void	rz_getopt_init (RzGetopt *opt, int argc, const char **argv, const char *ostr)
RZ_API int	rz_getopt_next (RzGetopt *opt)

Macro Definition Documentation

BADARG

#define BADARG   (int)':'

Definition at line 14 of file getopt.c.

BADCH

#define BADCH   (int)'?'

Definition at line 13 of file getopt.c.

EMSG

#define EMSG   ""

Definition at line 15 of file getopt.c.

Function Documentation

rz_getopt_init()

RZ_API void rz_getopt_init	(	RzGetopt *	opt,
		int	argc,
		const char **	argv,
		const char *	ostr
	)

Definition at line 17 of file getopt.c.

                                                                                         {
    memset(opt, 0, sizeof(RzGetopt));
    opt->err = 1;
    opt->ind = 1;
    opt->opt = 0;
    opt->reset = 0;
    opt->arg = NULL;
    opt->argc = argc;
    opt->argv = argv;
    opt->ostr = ostr;
}

References rz_getopt_t::arg, rz_getopt_t::argc, rz_getopt_t::argv, argv, rz_getopt_t::err, rz_getopt_t::ind, memset(), NULL, rz_getopt_t::opt, rz_getopt_t::ostr, and rz_getopt_t::reset.

Referenced by hash_parse_cmdline(), rz_diff_parse_arguments(), rz_main_rizin(), rz_main_rz_agent(), rz_main_rz_asm(), rz_main_rz_bin(), rz_main_rz_find(), rz_main_rz_gg(), rz_main_rz_sign(), rz_test_main(), and windbg_open().

rz_getopt_next()

RZ_API int rz_getopt_next

(

RzGetopt *

opt

)

Definition at line 29 of file getopt.c.

                                         {
    static const char *place = EMSG; // option letter processing
    const char *oli; // option letter list index
 
    if (opt->reset || !*place) { // update scanning pointer
        opt->reset = 0;
        if (opt->ind >= opt->argc || *(place = opt->argv[opt->ind]) != '-') {
            place = EMSG;
            return -1;
        }
        if (place[1] && *++place == '-') { // found "--"
            opt->ind++;
            place = EMSG;
            return -1;
        }
    }
    /* option letter okay? */
    if ((opt->opt = (int)*place++) == (int)':' || !(oli = strchr(opt->ostr, opt->opt))) {
        /*
         * if the user didn't specify '-' as an option,
         * assume it means -1.
         */
        if (opt->opt == (int)'-') {
            opt->ind++;
            if (rz_getopt_next(opt) == -1) {
                opt->ind--;
                return -1;
            }
 
            return '-';
        }
        if (!*place) {
            opt->ind++;
        }
        if (opt->err && *opt->ostr != ':') {
            (void)eprintf("%s: illegal option -- %c\n", opt->argv[0], opt->opt);
        }
        return BADCH;
    }
    if (*++oli == ':') { /* need argument */
        if (*place) { /* no white space */
            opt->arg = place;
        } else if (opt->argc <= ++opt->ind) { /* no arg */
            place = EMSG;
            if (*opt->ostr == ':') {
                return BADARG;
            }
            if (opt->err) {
                (void)eprintf("%s: option requires an argument -- %c\n", opt->argv[0], opt->opt);
            }
            return BADCH;
        } else { /* white space */
            opt->arg = opt->argv[opt->ind];
        }
        place = EMSG;
        opt->ind++;
    } else {
        opt->arg = NULL;
        if (!*place) {
            opt->ind++;
        }
    }
    // dump back option letter
    return opt->opt;
}

References rz_getopt_t::arg, rz_getopt_t::argc, rz_getopt_t::argv, BADARG, BADCH, EMSG, eprintf, rz_getopt_t::err, rz_getopt_t::ind, NULL, rz_getopt_t::opt, rz_getopt_t::ostr, rz_getopt_t::reset, and rz_getopt_next().

Referenced by hash_parse_cmdline(), rz_diff_parse_arguments(), rz_getopt_next(), rz_main_rizin(), rz_main_rz_agent(), rz_main_rz_asm(), rz_main_rz_bin(), rz_main_rz_find(), rz_main_rz_gg(), rz_main_rz_sign(), rz_test_main(), and windbg_open().