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/*LINTLIBRARY*/
#define NULL 0
#define EOF (-1)
/*
#ifdef VMS
#include <unixio.h>
#endif
*/
#ifdef HDF
#define ERR(s, c) if(opterr){\
char errbuf[2];\
errbuf[0] = c; errbuf[1] = '\n';\
(void) write(2, argv[0], strlen(argv[0]));\
(void) write(2, s, strlen(s));\
(void) write(2, errbuf, 2);}
#include <string.h>
#else
#define ERR(s, c) if(opterr){\
extern int strlen(), write();\
char errbuf[2];\
errbuf[0] = c; errbuf[1] = '\n';\
(void) write(2, argv[0], strlen(argv[0]));\
(void) write(2, s, strlen(s));\
(void) write(2, errbuf, 2);}
extern int strcmp();
extern char *strchr();
#endif
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], "--") == NULL) {
optind++;
return (EOF);
}
optopt = c = argv[optind][sp];
if (c == ':' || (cp = strchr(opts, c)) == NULL) {
ERR(": unknown 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(": argument missing for -", c);
sp = 1;
return ('?');
}
else
optarg = argv[optind++];
sp = 1;
}
else {
if (argv[optind][++sp] == '\0') {
sp = 1;
optind++;
}
optarg = NULL;
}
return (c);
}
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