#include <stddef.h>
#include <getopt.h>
#include <stdio.h>
+#include <string.h>
extern int __optpos, __optreset;
av[dest] = tmp;
}
+void __getopt_msg(const char *, const char *, const char *, size_t);
+
static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly);
static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
{
-
+ optarg = 0;
if (longopts && argv[optind][0] == '-' &&
((longonly && argv[optind][1]) ||
(argv[optind][1] == '-' && argv[optind][2])))
{
+ int colon = optstring[optstring[0]=='+'||optstring[0]=='-']==':';
int i, cnt, match;
char *opt;
for (cnt=i=0; longopts[i].name; i++) {
if (cnt==1) {
i = match;
optind++;
+ optopt = longopts[i].val;
if (*opt == '=') {
- if (!longopts[i].has_arg) return '?';
+ if (!longopts[i].has_arg) {
+ if (colon || !opterr)
+ return '?';
+ __getopt_msg(argv[0],
+ ": option does not take an argument: ",
+ longopts[i].name,
+ strlen(longopts[i].name));
+ return '?';
+ }
optarg = opt+1;
- } else {
- if (longopts[i].has_arg == required_argument) {
- if (!(optarg = argv[optind]))
- return ':';
- optind++;
- } else optarg = NULL;
+ } else if (longopts[i].has_arg == required_argument) {
+ if (!(optarg = argv[optind])) {
+ if (colon) return ':';
+ if (!opterr) return '?';
+ __getopt_msg(argv[0],
+ ": option requires an argument: ",
+ longopts[i].name,
+ strlen(longopts[i].name));
+ return '?';
+ }
+ optind++;
}
if (idx) *idx = i;
if (longopts[i].flag) {
return longopts[i].val;
}
if (argv[optind][1] == '-') {
+ if (!colon && opterr)
+ __getopt_msg(argv[0], cnt ?
+ ": option is ambiguous: " :
+ ": unrecognized option: ",
+ argv[optind]+2,
+ strlen(argv[optind]+2));
optind++;
return '?';
}