X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/4fe159a81d1f0c39aaa7f05dbb33b36d231e7c80..3fac9b6e93b595f91108c0f9c6b6f40d14a58618:/compat.c

diff --git a/compat.c b/compat.c
index 2b72f9ba..1c28c253 100644
--- a/compat.c
+++ b/compat.c
@@ -21,6 +21,10 @@
 
 #include "rsync.h"
 
+extern int am_server;
+
+extern int csum_length;
+
 extern int preserve_links;
 extern int preserve_perms;
 extern int preserve_devices;
@@ -28,6 +32,7 @@ extern int preserve_uid;
 extern int preserve_gid;
 extern int preserve_times;
 extern int always_checksum;
+extern int checksum_seed;
 
 
 extern int remote_version;
@@ -41,7 +46,7 @@ void send_file_entry_v10(struct file_struct *file,int f)
 {
   unsigned char flags;
   static mode_t last_mode=0;
-  static dev_t last_dev=0;
+  static dev_t last_rdev=0;
   static uid_t last_uid=0;
   static gid_t last_gid=0;
   static char lastdir[MAXPATHLEN]="";
@@ -57,7 +62,7 @@ void send_file_entry_v10(struct file_struct *file,int f)
   flags = FILE_VALID;
 
   if (file->mode == last_mode) flags |= SAME_MODE;
-  if (file->dev == last_dev) flags |= SAME_DEV;
+  if (file->rdev == last_rdev) flags |= SAME_RDEV;
   if (file->uid == last_uid) flags |= SAME_UID;
   if (file->gid == last_gid) flags |= SAME_GID;
     
@@ -82,8 +87,8 @@ void send_file_entry_v10(struct file_struct *file,int f)
     write_int(f,(int)file->uid);
   if (preserve_gid && !(flags & SAME_GID))
     write_int(f,(int)file->gid);
-  if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_DEV))
-    write_int(f,(int)file->dev);
+  if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_RDEV))
+    write_int(f,(int)file->rdev);
 
 #if SUPPORT_LINKS
   if (preserve_links && S_ISLNK(file->mode)) {
@@ -93,11 +98,11 @@ void send_file_entry_v10(struct file_struct *file,int f)
 #endif
 
   if (always_checksum) {
-    write_buf(f,file->sum,SUM_LENGTH);
+    write_buf(f,file->sum,csum_length);
   }       
 
   last_mode = file->mode;
-  last_dev = file->dev;
+  last_rdev = file->rdev;
   last_uid = file->uid;
   last_gid = file->gid;
   p = strrchr(file->name,'/');
@@ -116,7 +121,7 @@ void receive_file_entry_v10(struct file_struct *file,
 			    unsigned char flags,int f)
 {
   static mode_t last_mode=0;
-  static dev_t last_dev=0;
+  static dev_t last_rdev=0;
   static uid_t last_uid=0;
   static gid_t last_gid=0;
   static char lastdir[MAXPATHLEN]="";
@@ -146,7 +151,7 @@ void receive_file_entry_v10(struct file_struct *file,
   if (preserve_gid)
     file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
   if (preserve_devices && IS_DEVICE(file->mode))
-    file->dev = (flags & SAME_DEV) ? last_dev : (dev_t)read_int(f);
+    file->rdev = (flags & SAME_RDEV) ? last_rdev : (dev_t)read_int(f);
 
 #if SUPPORT_LINKS
   if (preserve_links && S_ISLNK(file->mode)) {
@@ -159,10 +164,10 @@ void receive_file_entry_v10(struct file_struct *file,
 #endif
   
   if (always_checksum)
-    read_buf(f,file->sum,SUM_LENGTH);
+    read_buf(f,file->sum,csum_length);
   
   last_mode = file->mode;
-  last_dev = file->dev;
+  last_rdev = file->rdev;
   last_uid = file->uid;
   last_gid = file->gid;
   p = strrchr(file->name,'/');
@@ -178,8 +183,24 @@ void receive_file_entry_v10(struct file_struct *file,
 
 
 
-void setup_protocol(void)
+void setup_protocol(int f_out,int f_in)
 {
+  if (am_server) {
+    remote_version = read_int(f_in);
+    write_int(f_out,PROTOCOL_VERSION);
+    write_flush(f_out);
+  } else {
+    write_int(f_out,PROTOCOL_VERSION);
+    write_flush(f_out);
+    remote_version = read_int(f_in);
+  }
+
+  if (remote_version < MIN_PROTOCOL_VERSION ||
+      remote_version > MAX_PROTOCOL_VERSION) {
+    fprintf(FERROR,"protocol version mismatch - is your shell clean?\n");
+    exit_cleanup(1);
+  }	
+
   if (remote_version == 10) {
     send_file_entry = send_file_entry_v10;
     receive_file_entry = receive_file_entry_v10;
@@ -187,5 +208,16 @@ void setup_protocol(void)
     send_file_entry = send_file_entry_v11;
     receive_file_entry = receive_file_entry_v11;
   }
+
+  if (remote_version >= 12) {
+    if (am_server) {
+      checksum_seed = time(NULL);
+      write_int(f_out,checksum_seed);
+    } else {
+      checksum_seed = read_int(f_in);
+    }
+  }
+
+  checksum_init();
 }