Add clientutil.c

cmd/clientutil.c

@@ -0,0 +1,50 @@
+#define IXP_NO_P9_
+#define IXP_P9_STRUCTS
+#define CLIENTEXTERN
+#include <string.h>
+#include <ixp.h>
+#include <clientutil.h>
+#include <util.h>
+
+static IxpCFid*	ctlfid;
+static char 	ctl[1024];
+static char*	ectl;
+
+char*
+readctl(char *key) {
+	char *s, *p;
+	int nkey, n;
+
+	if(ctlfid == nil) {
+		ctlfid = ixp_open(client, "ctl", OREAD);
+		n = ixp_read(ctlfid, ctl, 1023);
+		ectl = ctl + n;
+		ixp_close(ctlfid);
+	}
+
+	nkey = strlen(key);
+	p = ctl - 1;
+	do {
+		p++;
+		if(!strncmp(p, key, nkey)) {
+			p += nkey;
+			s = strchr(p, '\n');
+			n = (s ? s : ectl) - p;
+			s = freelater(emalloc(n + 1));
+			s[n] = '\0';
+			return strncpy(s, p, n);
+		}
+	} while((p = strchr(p, '\n')));
+	return "";
+}
+
+void
+client_init(char* address) {
+	if(address && *address)
+		client = ixp_mount(address);
+	else
+		client = ixp_nsmount("wmii");
+	if(client == nil)
+		fatal("can't mount: %r\n");
+}
+

include/clientutil.h

@@ -0,0 +1,9 @@
+#ifndef CLIENTEXTERN
+#  define CLIENTEXTERN extern
+#endif
+
+char*	readctl(char*);
+void	client_init(char*);
+
+CLIENTEXTERN IxpClient*	client;
+