X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/9decb4d2ef51599425f12a68dbeba2b4f3a2d908..0b52f94da727c4881b58c1cd6f2cf2a824e02b30:/uidlist.c

diff --git a/uidlist.c b/uidlist.c
index 97e9c233..bb7a3013 100644
--- a/uidlist.c
+++ b/uidlist.c
@@ -6,8 +6,9 @@
  * Copyright (C) 2004-2007 Wayne Davison
  *
  * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3 as
- * published by the Free Software Foundation.
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -42,7 +43,7 @@ extern int numeric_ids;
 
 struct idlist {
 	struct idlist *next;
-	char *name;
+	const char *name;
 	id_t id, id2;
 	uint16 flags;
 };
@@ -50,7 +51,7 @@ struct idlist {
 static struct idlist *uidlist;
 static struct idlist *gidlist;
 
-static struct idlist *add_to_list(struct idlist **root, id_t id, char *name,
+static struct idlist *add_to_list(struct idlist **root, id_t id, const char *name,
 				  id_t id2, uint16 flags)
 {
 	struct idlist *node = new(struct idlist);
@@ -66,7 +67,7 @@ static struct idlist *add_to_list(struct idlist **root, id_t id, char *name,
 }
 
 /* turn a uid into a user name */
-static char *uid_to_name(uid_t uid)
+static const char *uid_to_name(uid_t uid)
 {
 	struct passwd *pass = getpwuid(uid);
 	if (pass)
@@ -75,7 +76,7 @@ static char *uid_to_name(uid_t uid)
 }
 
 /* turn a gid into a group name */
-static char *gid_to_name(gid_t gid)
+static const char *gid_to_name(gid_t gid)
 {
 	struct group *grp = getgrgid(gid);
 	if (grp)
@@ -236,7 +237,7 @@ gid_t match_gid(gid_t gid, uint16 *flags_ptr)
 }
 
 /* Add a uid to the list of uids.  Only called on sending side. */
-char *add_uid(uid_t uid)
+const char *add_uid(uid_t uid)
 {
 	struct idlist *list;
 	struct idlist *node;
@@ -254,7 +255,7 @@ char *add_uid(uid_t uid)
 }
 
 /* Add a gid to the list of gids.  Only called on sending side. */
-char *add_gid(gid_t gid)
+const char *add_gid(gid_t gid)
 {
 	struct idlist *list;
 	struct idlist *node;
@@ -315,6 +316,10 @@ uid_t recv_user_name(int f, uid_t uid)
 	if (!name)
 		out_of_memory("recv_user_name");
 	read_sbuf(f, name, len);
+	if (numeric_ids < 0) {
+		free(name);
+		name = NULL;
+	}
 	node = recv_add_uid(uid, name); /* node keeps name's memory */
 	return node->id2;
 }
@@ -327,6 +332,10 @@ gid_t recv_group_name(int f, gid_t gid, uint16 *flags_ptr)
 	if (!name)
 		out_of_memory("recv_group_name");
 	read_sbuf(f, name, len);
+	if (numeric_ids < 0) {
+		free(name);
+		name = NULL;
+	}
 	node = recv_add_gid(gid, name); /* node keeps name's memory */
 	if (flags_ptr && node->flags & FLAG_SKIP_GROUP)
 		*flags_ptr |= FLAG_SKIP_GROUP;
@@ -340,13 +349,13 @@ void recv_id_list(int f, struct file_list *flist)
 	id_t id;
 	int i;
 
-	if ((preserve_uid || preserve_acls) && !numeric_ids) {
+	if ((preserve_uid || preserve_acls) && numeric_ids <= 0) {
 		/* read the uid list */
 		while ((id = read_varint30(f)) != 0)
 			recv_user_name(f, id);
 	}
 
-	if ((preserve_gid || preserve_acls) && !numeric_ids) {
+	if ((preserve_gid || preserve_acls) && numeric_ids <= 0) {
 		/* read the gid list */
 		while ((id = read_varint30(f)) != 0)
 			recv_group_name(f, id, NULL);