BSD 4.4 Lite Lib Sources

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/librpc/etc/getopt.c b/lib/librpc/etc/getopt.c
new file mode 100644
index 0000000..7296b05
--- /dev/null
+++ b/lib/librpc/etc/getopt.c
@@ -0,0 +1,75 @@
+/* @(#)getopt.c	2.1 88/08/01 4.0 RPCSRC */
+
+/* this is a public domain version of getopt */
+
+/*LINTLIBRARY*/
+#ifndef NULL
+#define NULL	0
+#endif NULL
+#ifndef EOF
+#define EOF	(-1)
+#endif EOF
+
+#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);}
+
+#define strchr index
+
+extern int strcmp();
+extern char *strchr();
+
+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);
+}