X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/f567e9b3d7e4e2c5a4dfa35a2ecbb973aa46ce73..5e58e3f9cf3db5c3958fe6505eb59a2f814887fb:/uidlist.c

diff --git a/uidlist.c b/uidlist.c
index dbffb05f..b9ab1b6c 100644
--- a/uidlist.c
+++ b/uidlist.c
@@ -26,7 +26,7 @@
 #include "rsync.h"
 
 #ifdef HAVE_GETGROUPS
-# if !defined(GETGROUPS_T)
+# ifndef GETGROUPS_T
 #  define GETGROUPS_T gid_t
 # endif
 #endif
@@ -46,6 +46,9 @@ struct idlist {
 static struct idlist *uidlist;
 static struct idlist *gidlist;
 
+static struct id_pair *pair_list;
+static int pair_cnt = 0, pair_alloc = 0;
+
 static struct idlist *add_to_list(struct idlist **root, int id, char *name,
 				  int id2)
 {
@@ -81,7 +84,7 @@ static char *gid_to_name(gid_t gid)
 static int map_uid(int id, char *name)
 {
 	uid_t uid;
-	if (uid != 0 && name_to_uid(name, &uid))
+	if (id != 0 && name_to_uid(name, &uid))
 		return uid;
 	return id;
 }
@@ -89,7 +92,7 @@ static int map_uid(int id, char *name)
 static int map_gid(int id, char *name)
 {
 	gid_t gid;
-	if (gid != 0 && name_to_gid(name, &gid))
+	if (id != 0 && name_to_gid(name, &gid))
 		return gid;
 	return id;
 }
@@ -161,7 +164,7 @@ static struct idlist *recv_add_uid(int id, char *name)
 	int id2 = name ? map_uid(id, name) : id;
 	struct idlist *node;
 
-	node = add_to_list(&uidlist, id, name, map_uid(id, name));
+	node = add_to_list(&uidlist, id, name, id2);
 
 	if (verbose > 3) {
 		rprintf(FINFO, "uid %d(%s) maps to %d\n",
@@ -307,7 +310,7 @@ void send_uid_list(int f)
 
 /* recv a complete uid/gid mapping from the peer and map the uid/gid
  * in the file list to local names */
-void recv_uid_list(int f, struct file_list *flist)
+void recv_uid_list(int f)
 {
 	int id, i;
 	char *name;
@@ -324,7 +327,6 @@ void recv_uid_list(int f, struct file_list *flist)
 		}
 	}
 
-
 	if (preserve_gid && !numeric_ids) {
 		/* read the gid list */
 		while ((id = read_int(f)) != 0) {
@@ -337,14 +339,32 @@ void recv_uid_list(int f, struct file_list *flist)
 		}
 	}
 
-	/* now convert the uid/gid of all files in the list to the mapped
-	 * uid/gid */
+	/* Now convert the id_pair array over to mapped uid/gid values. */
 	if (am_root && preserve_uid && !numeric_ids) {
-		for (i = 0; i < flist->count; i++)
-			flist->files[i]->uid = match_uid(flist->files[i]->uid);
+		for (i = 0; i < pair_cnt; i++)
+			pair_list[i].uid = match_uid(pair_list[i].uid);
 	}
 	if (preserve_gid && (!am_root || !numeric_ids)) {
-		for (i = 0; i < flist->count; i++)
-			flist->files[i]->gid = match_gid(flist->files[i]->gid);
+		for (i = 0; i < pair_cnt; i++)
+			pair_list[i].gid = match_gid(pair_list[i].gid);
+	}
+}
+
+struct id_pair *id_pair(uid_t uid, gid_t gid)
+{
+	int i;
+
+	for (i = 0; i < pair_cnt; i++) {
+		if (uid == pair_list[i].uid && gid == pair_list[i].gid)
+			return pair_list + i;
+	}
+
+	if (pair_cnt == pair_alloc) {
+		pair_alloc += 128;
+		pair_list = realloc_array(pair_list, struct id_pair,
+					  pair_alloc);
 	}
+	pair_list[pair_cnt].uid = uid;
+	pair_list[pair_cnt].gid = gid;
+	return pair_list + pair_cnt++;
 }