1 files changed, 64 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/getoptlong.c b/newlib/libc/sys/linux/getoptlong.c
new file mode 100644
index 000000000..089f4cdee
--- /dev/null
+++ b/newlib/libc/sys/linux/getoptlong.c
@@ -0,0 +1,64 @@
+#include <unistd.h>
+#include <string.h>
+#include <getopt.h>
+
+/* Written 2000 by Werner Almesberger */
+
+static const char *__resume;
+
+
+int getopt_long(int argc,char *const argv[],const char *optstring,
+  const struct option *longopts,int *longindex)
+{
+    char *here;
+
+    optarg = NULL;
+    if (!__resume) {
+	if (argc == optind || *argv[optind] != '-') return -1;
+	if (argv[optind][1] == '-') {
+	    const struct option *opt;
+
+	    optarg = strchr(argv[optind],'=');
+	    if (optarg) optarg++;
+	    for (opt = longopts; opt->name &&
+	      (optarg || strcmp(opt->name,argv[optind]+2)) &&
+	      (!optarg || strlen(opt->name) != optarg-argv[optind]-3 ||
+	      strncmp(opt->name,argv[optind]+2,optarg-argv[optind]-3));
+	      opt++);
+	    optind++;
+	    if (!opt->name) return '?';
+	    if ((opt->has_arg == no_argument && optarg) ||
+	      (opt->has_arg == required_argument && !optarg)) return ':';
+	    if (longindex) *longindex = opt-longopts;
+	    if (!opt->flag) return opt->val;
+	    *opt->flag = opt->val;
+	    return 0;
+	}
+	else {
+	    __resume = argv[optind]+1;
+	}
+    }
+    here = strchr(optstring,*__resume);
+    if (!here) {
+	optind++;
+	__resume = NULL;
+	return '?';
+    }
+    if (here[1] != ':') {
+	if (!*++__resume) __resume = NULL;
+    }
+    else {
+	if (__resume[1]) optarg = (char *) __resume+1;
+	else {
+	    optarg = (char *) argv[++optind];
+	    if (optind == argc || *argv[optind] == '-') {
+		optind++;
+		__resume = NULL;
+		return ':';
+	    }
+	}
+	__resume = NULL;
+    }
+    if (!__resume) optind++;
+    return *here;
+}