getopt.h File Reference

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Go to the source code of this file.

Macros
#define	kGetoptBadChar   ((int) '?')
#define	kGetoptErrMsg   ""

Functions
void	GetoptReset (void)
int	Getopt (int nargc, const char **const nargv, const char *const ostr)

Macro Definition Documentation

kGetoptBadChar

#define kGetoptBadChar   ((int) '?')

Definition at line 8 of file getopt.h.

kGetoptErrMsg

#define kGetoptErrMsg   ""

Definition at line 9 of file getopt.h.

Function Documentation

Getopt()

int Getopt	(	int	nargc,
		const char **const	nargv,
		const char *const	ostr
	)

Definition at line 42 of file getopt.c.

{
    const char *oli;                   /* Option letter list index */
 
    if (!*gOptPlace) {                     /* update scanning pointer */
        if (gOptInd >= nargc || *(gOptPlace = nargv[gOptInd]) != '-')
            return (EOF);
        if (gOptPlace[1] && *++gOptPlace == '-') {  /* found "--" */
            ++gOptInd;
            return (EOF);
        }
    }                                  /* Option letter okay? */
    oli = NextOption(ostr);
    if (oli == NULL) {
        if (!*gOptPlace)
            ++gOptInd;
        if (gOptErr)
            (void) fprintf(stderr, "%s%s%c\n", *nargv, ": illegal option -- ", gOptOpt);
        return(kGetoptBadChar);
    }
    if (*++oli != ':') {               /* don't need argument */
        gOptArg = NULL;
        if (!*gOptPlace)
            ++gOptInd;
    } else {                           /* need an argument */
        if (*gOptPlace)                    /* no white space */
            gOptArg = gOptPlace;
        else if (nargc <= ++gOptInd) {  /* no arg */
            gOptPlace = kGetoptErrMsg;
            if (gOptErr)
                (void) fprintf(stderr, "%s%s%c\n", *nargv, ": option requires an argument -- ", gOptOpt);
            return(kGetoptBadChar);
        } else                         /* white space */
            gOptArg = nargv[gOptInd];
        gOptPlace = kGetoptErrMsg;
        ++gOptInd;
    }
    return (gOptOpt);                  /* dump back Option letter */
}                                      /* Getopt */

Referenced by DeleteCmd(), GetCmd(), LookupCmd(), main(), MkdirCmd(), MlsCmd(), OpenCmd(), PutCmd(), RmdirCmd(), SpoolGetCmd(), and SpoolPutCmd().

GetoptReset()

void GetoptReset

(

void

)

Definition at line 21 of file getopt.c.

{
    gOptInd = 1;
    gOptPlace = kGetoptErrMsg;
}   /* GetoptReset */

Referenced by DeleteCmd(), GetCmd(), LookupCmd(), main(), MkdirCmd(), MlsCmd(), OpenCmd(), PreInit(), PutCmd(), RmdirCmd(), SpoolGetCmd(), and SpoolPutCmd().