1 files changed, 102 insertions, 0 deletions
diff --git a/unix/f2c/getopt.c b/unix/f2c/getopt.c
new file mode 100644
index 00000000..6c97b59d
--- /dev/null
+++ b/unix/f2c/getopt.c
@@ -0,0 +1,102 @@
+/****************************************************************
+Copyright 1996 by Lucent Technologies.
+
+Permission to use, copy, modify, and distribute this software and
+its documentation for any purpose and without fee is hereby
+granted, provided that the above copyright notice appear in all
+copies and that both that the copyright notice and this
+permission notice and warranty disclaimer appear in supporting
+documentation, and that the names of Bell Laboratories or Lucent
+Technologies or any of their entities not be used in advertising
+or publicity pertaining to distribution of the software without
+specific, written prior permission.
+
+Lucent disclaims all warranties with regard to this software,
+including all implied warranties of merchantability and fitness.
+In no event shall Lucent be liable for any special, indirect or
+consequential damages or any damages whatsoever resulting from
+loss of use, data or profits, whether in an action of contract,
+negligence or other tortious action, arising out of or in
+connection with the use or performance of this software.
+****************************************************************/
+
+/* Source for a "getopt" command, as invoked by the "fc" script. */
+
+#include <stdio.h>
+
+static char opts[256];	/* assume 8-bit bytes */
+
+ int
+#ifdef KR_headers
+main(argc, argv) int argc; char **argv;
+#else
+main(int argc, char **argv)
+#endif
+{
+	char **av, *fmt, *s, *s0;
+	int i;
+
+	if (argc < 2) {
+		fprintf(stderr, "Usage: getopt optstring arg1 arg2...\n");
+		return 1;
+		}
+	for(s = argv[1]; *s; ) {
+		i = *(unsigned char *)s++;
+		if (!opts[i])
+			opts[i] = 1;
+		if (*s == ':') {
+			s++;
+			opts[i] = 2;
+			}
+		}
+	/* scan for legal args */
+	av = argv + 2;
+ nextarg:
+	while(s = *av++) {
+		if (*s++ != '-' || s[0] == '-' && s[1] == 0)
+			break;
+		while(i = *(unsigned char *)s++) {
+			switch(opts[i]) {
+			  case 0:
+				fprintf(stderr,
+					"getopt: Illegal option -- %c\n", s[-1]);
+				return 1;
+			  case 2:
+				s0 = s - 1;
+				if (*s || *av++)
+					goto nextarg;
+				fprintf(stderr,
+				 "getopt: Option requires an argument -- %c\n",
+					*s0);
+				return 1;
+			  }
+			}
+		}
+	/* output modified args */
+	av = argv + 2;
+	fmt = "-%c";
+ nextarg1:
+	while(s = *av++) {
+		if (s[0] != '-')
+			break;
+		if (*++s == '-' && !s[1]) {
+			s = *av++;
+			break;
+			}
+		while(*s) {
+			printf(fmt, *s);
+			fmt = " -%c";
+			if (opts[*(unsigned char *)s++] == 2) {
+				if (!*s)
+					s = *av++;
+				printf(" %s", s);
+				goto nextarg1;
+				}
+			}
+		}
+	printf(*fmt == ' ' ? " --" : "--");
+	for(; s; s = *av++)
+		printf(" %s", s);
+	printf("\n");
+	return 0;
+	}