not sure who made this change, but it certainly mucks things up (note 'fwrite(leases, ...'), adds a bit more code, and some stack overhead. Anywho, this fixes it, and retains the spirit of what the submitter of this change was attempting to acheive (the entire lease is written at once in a struct)

1 files changed, 13 insertions, 9 deletions

diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c
index 20761a585..e2002460d 100644
--- a/networking/udhcp/files.c
+++ b/networking/udhcp/files.c
@@ -229,7 +229,7 @@ void write_leases(void)
 	unsigned int i;
 	char buf[255];
 	time_t curr = time(0);
-	unsigned long lease_time;
+	unsigned long tmp_time;
 	
 	if (!(fp = fopen(server_config.lease_file, "w"))) {
 		LOG(LOG_ERR, "Unable to open %s for writing", server_config.lease_file);
@@ -237,17 +237,21 @@ void write_leases(void)
 	}
 	
 	for (i = 0; i < server_config.max_leases; i++) {
-		struct dhcpOfferedAddr lease;
 		if (leases[i].yiaddr != 0) {
+
+			/* screw with the time in the struct, for easier writing */
+			tmp_time = leases[i].expires;
+
 			if (server_config.remaining) {
 				if (lease_expired(&(leases[i])))
-					lease_time = 0;
-				else lease_time = leases[i].expires - curr;
-			} else lease_time = leases[i].expires;
-			lease.expires = htonl(lease_time);
-			memcpy(lease.chaddr, leases[i].chaddr, 16);
-			lease.yiaddr = leases[i].yiaddr;
-			fwrite(leases, sizeof(lease), 1, fp);
+					leases[i].expires = 0;
+				else leases[i].expires -= curr;
+			} /* else stick with the time we got */
+			leases[i].expires = htonl(leases[i].expires);
+			fwrite(leases[i], sizeof(sturct dhcpOfferedAddr), 1, fp);
+
+			/* Then restore it when done. */
+			leases[i].expires = tmp_time;
 		}
 	}
 	fclose(fp);