9os

commit 9f6fbda00aec1be7d746dc8d118d693eecd6cec5
parent 5d9e18766eda2ecd5a2faa5aac6b43be0da7a1e4
Author: Roberto E. Vargas Caballero <roberto.vargas@midokura.com>
Date:   Thu, 24 Nov 2022 19:24:55 +0100

os9: Improve iconf()

Diffstat:
M
src/os9/sys.c
 | 
27
++++++++++++++++++---------

1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/src/os9/sys.c b/src/os9/sys.c
@@ -68,6 +68,15 @@ iconf(void)
 	int n;
 	Chan *c;
 	char line[80], *s, *p;
+	static struct {
+		char *verb;
+		void (*fn)(char *);
+	} words[] = {
+		"write", writeline,
+		"bind", bindline,
+		"mount", mountline,
+		NULL
+	}, *bp;
 
 	if ((c = chanopen("/blobs/conf", O_READ)) == NULL) {
 		kprint("missed kernel namespace configuration\n");
@@ -87,17 +96,17 @@ iconf(void)
 		while (isspace(*p))
 			*p++ = '\0';
 
-		if (strcmp(s, "write") == 0) {
-			writeline(p);
-		} else if (strcmp(s, "bind") == 0) {
-			bindline(p);
-		} else if (strcmp(s, "mount") == 0) {
-			mountline(p);
-		} else {
-			kprint("iconf: incorrect verb '%s'\n", s);
-			continue;
+		for (bp = words; bp->verb; ++bp) {
+			if (strcmp(s, bp->verb) == 0) {
+				(*bp->fn)(p);
+				break;
+			}
 		}
+
+		if (!bp->verb)
+			kprint("iconf: incorrect verb '%s'\n", s);
 	}
+
 	if (n < 0)
 		kprint("iconf: error reading configuration:%r\n");