From: Ben Gras <ben@minix3.org>
Date: Tue, 3 May 2005 15:38:41 +0000 (+0000)
Subject: Device variables get copies of their contents in *_n variables for scripts
X-Git-Tag: v3.1.0~881
X-Git-Url: http://zhaoyanbai.com/repos/tz-link.htm?a=commitdiff_plain;h=27b7e7c72e43e2cf3c5f651027120e11cc49b321;p=minix.git

Device variables get copies of their contents in *_n variables for scripts
that want the device name (as opposed to the number for the kernel).
---

diff --git a/boot/boot.c b/boot/boot.c
index c948f2926..3fbef84f5 100755
--- a/boot/boot.c
+++ b/boot/boot.c
@@ -741,13 +741,28 @@ int b_setenv(int flags, char *name, char *arg, char *value)
 	}
 	e->arg= copystr(arg);
 	e->value= copystr(value);
+
+	if(e->flags & E_DEV) {
+		char newname[30];
+		strncpy(newname, name, sizeof(newname)-3);
+		newname[sizeof(newname)-4] = '\0';
+		strcat(newname, "_n");
+		b_setenv(E_VAR, newname, arg, value);
+	}
+
 	return 0;
 }
 
 int b_setvar(int flags, char *name, char *value)
 /* Set variable or simple function. */
 {
-	return b_setenv(flags, name, null, value);
+	int r;
+
+	if((r=b_setenv(flags, name, null, value))) {
+		return r;
+	}
+
+	return r;
 }
 
 void b_unset(char *name)