--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rvinterf/etmsync/dispatch.c	Sat Jun 11 00:13:35 2016 +0000
@@ -0,0 +1,131 @@
+/*
+ * This module implements the command dispatch for fc-fsio
+ * and possibly other similar utilities in the future.
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <stdlib.h>
+#include "cmdtab.h"
+#include "exitcodes.h"
+
+extern struct cmdtab cmdtab[];
+
+parse_and_dispatch_cmd(cmd, is_script)
+	char *cmd;
+{
+	char *argv[MAX_CMD_ARGS+2];
+	char *cp, **ap;
+	struct cmdtab *tp;
+
+	for (cp = cmd; isspace(*cp); cp++)
+		;
+	if (!*cp || *cp == '#')
+		return(0);
+	if (is_script)
+		printf("Script command: %s\n", cp);
+	argv[0] = cp;
+	while (*cp && !isspace(*cp))
+		cp++;
+	if (*cp)
+		*cp++ = '\0';
+	for (tp = cmdtab; tp->cmd; tp++)
+		if (!strcmp(tp->cmd, argv[0]))
+			break;
+	if (!tp->func) {
+		fprintf(stderr, "error: no such command\n");
+		return(ERROR_USAGE);
+	}
+	for (ap = argv + 1; ; ) {
+		while (isspace(*cp))
+			cp++;
+		if (!*cp || *cp == '#')
+			break;
+		if (ap - argv - 1 >= tp->maxargs) {
+			fprintf(stderr, "error: too many arguments\n");
+			return(ERROR_USAGE);
+		}
+		if (*cp == '"') {
+			*ap++ = ++cp;
+			while (*cp && *cp != '"')
+				cp++;
+			if (*cp != '"') {
+				fprintf(stderr,
+					"error: unterminated quoted string\n");
+				return(ERROR_USAGE);
+			}
+			*cp++ = '\0';
+		} else {
+			*ap++ = cp;
+			while (*cp && !isspace(*cp))
+				cp++;
+			if (*cp)
+				*cp++ = '\0';
+		}
+	}
+	if (ap - argv - 1 < tp->minargs) {
+		fprintf(stderr, "error: too few arguments\n");
+		return(ERROR_USAGE);
+	}
+	*ap = 0;
+	return tp->func(ap - argv, argv);
+}
+
+dispatch_ready_argv(argc, argv)
+	char **argv;
+{
+	struct cmdtab *tp;
+
+	for (tp = cmdtab; tp->cmd; tp++)
+		if (!strcmp(tp->cmd, argv[0]))
+			break;
+	if (!tp->func) {
+		fprintf(stderr, "error: no such command\n");
+		return(ERROR_USAGE);
+	}
+	if (argc - 1 > tp->maxargs) {
+		fprintf(stderr, "error: too many arguments\n");
+		return(ERROR_USAGE);
+	}
+	if (argc - 1 < tp->minargs) {
+		fprintf(stderr, "error: too few arguments\n");
+		return(ERROR_USAGE);
+	}
+	return tp->func(argc, argv);
+}
+
+cmd_exec(argc, argv)
+	char **argv;
+{
+	FILE *f;
+	char linebuf[512], *cp;
+	int lineno, retval = 0;
+
+	f = fopen(argv[1], "r");
+	if (!f) {
+		perror(argv[1]);
+		return(ERROR_USAGE);
+	}
+	for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) {
+		cp = index(linebuf, '\n');
+		if (!cp) {
+			fprintf(stderr, "%s line %d: missing newline\n",
+				argv[1], lineno);
+			fclose(f);
+			return(ERROR_USAGE);
+		}
+		*cp = '\0';
+		retval = parse_and_dispatch_cmd(linebuf, 1);
+		if (retval)
+			break;
+	}
+	fclose(f);
+	return(retval);
+}
+
+cmd_exit()
+{
+	exit(0);
+}