X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/a06d19e3fca289d07ba18c71f39124a0da1ddd4a..f0e5517fb8abdf468542af0e5cb31607fb536c5e:/main.c

diff --git a/main.c b/main.c
index 930f823e..e4e4c563 100644
--- a/main.c
+++ b/main.c
@@ -30,6 +30,8 @@ char *backup_suffix = BACKUP_SUFFIX;
 static char *rsync_path = RSYNC_NAME;
 
 int make_backups = 0;
+int whole_file = 0;
+int copy_links = 0;
 int preserve_links = 0;
 int preserve_hard_links = 0;
 int preserve_perms = 0;
@@ -47,6 +49,9 @@ int one_file_system=0;
 int remote_version=0;
 int sparse_files=0;
 int do_compression=0;
+int am_root=0;
+int orig_umask=0;
+int relative_paths=0;
 
 extern int csum_length;
 
@@ -112,6 +117,10 @@ static void server_options(char **args,int *argc)
     argstr[x++] = 'n';
   if (preserve_links)
     argstr[x++] = 'l';
+  if (copy_links)
+    argstr[x++] = 'L';
+  if (whole_file)
+    argstr[x++] = 'W';
   if (preserve_hard_links)
     argstr[x++] = 'H';
   if (preserve_uid)
@@ -132,6 +141,8 @@ static void server_options(char **args,int *argc)
     argstr[x++] = 'C';
   if (ignore_times)
     argstr[x++] = 'I';
+  if (relative_paths)
+    argstr[x++] = 'R';
   if (one_file_system)
     argstr[x++] = 'x';
   if (sparse_files)
@@ -158,8 +169,8 @@ static void server_options(char **args,int *argc)
 int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
 {
   char *args[100];
-  int i,argc=0;
-  char *tok,*p;
+  int i,argc=0, ret;
+  char *tok,*p,*dir=NULL;
 
   if (!local_server) {
     if (!cmd)
@@ -174,11 +185,20 @@ int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
       args[argc++] = tok;
     }
 
+#if HAVE_REMSH
+    /* remsh (on HPUX) takes the arguments the other way around */
+    args[argc++] = machine;
+    if (user) {
+      args[argc++] = "-l";
+      args[argc++] = user;
+    }
+#else
     if (user) {
       args[argc++] = "-l";
       args[argc++] = user;
     }
     args[argc++] = machine;
+#endif
   }
 
   args[argc++] = rsync_path;
@@ -186,11 +206,14 @@ int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
   server_options(args,&argc);
 
   if (path && *path) {
-    char *dir = strdup(path);
+    dir = strdup(path);
     p = strrchr(dir,'/');
-    if (p) {
+    if (p && !relative_paths) {
       *p = 0;
-      args[argc++] = dir;
+      if (!dir[0])
+	args[argc++] = "/";
+      else
+	args[argc++] = dir;
       p++;
     } else {
       args[argc++] = ".";
@@ -209,7 +232,10 @@ int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
     fprintf(FERROR,"\n");
   }
 
-  return piped_child(args,f_in,f_out);
+  ret = piped_child(args,f_in,f_out);
+  if (dir) free(dir);
+
+  return ret;
 
 oom:
   out_of_memory("do_cmd");
@@ -226,7 +252,7 @@ static char *get_local_name(struct file_list *flist,char *name)
   if (stat(name,&st) == 0) {
     if (S_ISDIR(st.st_mode)) {
       if (chdir(name) != 0) {
-	fprintf(FERROR,"chdir %s : %s\n",name,strerror(errno));
+	fprintf(FERROR,"chdir %s : %s (1)\n",name,strerror(errno));
 	exit_cleanup(1);
       }
       return NULL;
@@ -244,15 +270,15 @@ static char *get_local_name(struct file_list *flist,char *name)
   if (!name) 
     return NULL;
 
-  if (mkdir(name,0777) != 0) {
-    fprintf(FERROR,"mkdir %s : %s\n",name,strerror(errno));
+  if (mkdir(name,0777 & ~orig_umask) != 0) {
+    fprintf(FERROR,"mkdir %s : %s (1)\n",name,strerror(errno));
     exit_cleanup(1);
   } else {
     fprintf(FINFO,"created directory %s\n",name);
   }
 
   if (chdir(name) != 0) {
-    fprintf(FERROR,"chdir %s : %s\n",name,strerror(errno));
+    fprintf(FERROR,"chdir %s : %s (2)\n",name,strerror(errno));
     exit_cleanup(1);
   }
 
@@ -271,8 +297,8 @@ void do_server_sender(int argc,char *argv[])
   if (verbose > 2)
     fprintf(FERROR,"server_sender starting pid=%d\n",(int)getpid());
   
-  if (chdir(dir) != 0) {
-    fprintf(FERROR,"chdir %s: %s\n",dir,strerror(errno));
+  if (!relative_paths && chdir(dir) != 0) {
+    fprintf(FERROR,"chdir %s: %s (3)\n",dir,strerror(errno));
     exit_cleanup(1);
   }
   argc--;
@@ -280,6 +306,8 @@ void do_server_sender(int argc,char *argv[])
   
   if (strcmp(dir,".")) {
     int l = strlen(dir);
+    if (strcmp(dir,"/") == 0) 
+      l = 0;
     for (i=0;i<argc;i++)
       argv[i] += l+1;
   }
@@ -315,8 +343,6 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 
   if ((pid=fork()) == 0) {
     recv_files(f_in,flist,local_name,recv_pipe[1]);
-    if (preserve_hard_links)
-      do_hard_links(flist);
     if (verbose > 2)
       fprintf(FERROR,"receiver read %d\n",read_total());
     exit_cleanup(0);
@@ -345,7 +371,7 @@ void do_server_recv(int argc,char *argv[])
     argc--;
     argv++;
     if (chdir(dir) != 0) {
-      fprintf(FERROR,"chdir %s : %s\n",dir,strerror(errno));
+      fprintf(FERROR,"chdir %s : %s (4)\n",dir,strerror(errno));
       exit_cleanup(1);
     }    
   }
@@ -383,9 +409,11 @@ static void usage(FILE *f)
   fprintf(f,"-c, --checksum           always checksum\n");
   fprintf(f,"-a, --archive            archive mode (same as -rlptDog)\n");
   fprintf(f,"-r, --recursive          recurse into directories\n");
+  fprintf(f,"-R, --relative           use relative path names\n");
   fprintf(f,"-b, --backup             make backups (default ~ extension)\n");
   fprintf(f,"-u, --update             update only (don't overwrite newer files)\n");
   fprintf(f,"-l, --links              preserve soft links\n");
+  fprintf(f,"-L, --copy-links         treat soft links like regular files\n");
   fprintf(f,"-H, --hard-links         preserve hard links\n");
   fprintf(f,"-p, --perms              preserve permissions\n");
   fprintf(f,"-o, --owner              preserve owner (root only)\n");
@@ -394,6 +422,7 @@ static void usage(FILE *f)
   fprintf(f,"-t, --times              preserve times\n");  
   fprintf(f,"-S, --sparse             handle sparse files efficiently\n");
   fprintf(f,"-n, --dry-run            show what would have been transferred\n");
+  fprintf(f,"-W, --whole-file         copy whole files, no incremental checks\n");
   fprintf(f,"-x, --one-file-system    don't cross filesystem boundaries\n");
   fprintf(f,"-B, --block-size SIZE    checksum blocking size\n");  
   fprintf(f,"-e, --rsh COMMAND        specify rsh replacement\n");
@@ -415,7 +444,7 @@ static void usage(FILE *f)
 enum {OPT_VERSION,OPT_SUFFIX,OPT_SENDER,OPT_SERVER,OPT_EXCLUDE,
       OPT_EXCLUDE_FROM,OPT_DELETE,OPT_RSYNC_PATH};
 
-static char *short_options = "oblHpguDCtcahvrIxnSe:B:z";
+static char *short_options = "oblLWHpguDCtcahvrRIxnSe:B:z";
 
 static struct option long_options[] = {
   {"version",     0,     0,    OPT_VERSION},
@@ -437,9 +466,12 @@ static struct option long_options[] = {
   {"update",      0,     0,    'u'},
   {"verbose",     0,     0,    'v'},
   {"recursive",   0,     0,    'r'},
+  {"relative",    0,     0,    'R'},
   {"devices",     0,     0,    'D'},
   {"perms",       0,     0,    'p'},
   {"links",       0,     0,    'l'},
+  {"copy-links",  0,     0,    'L'},
+  {"whole-file",  0,     0,    'W'},
   {"hard-links",  0,     0,    'H'},
   {"owner",       0,     0,    'o'},
   {"group",       0,     0,    'g'},
@@ -450,9 +482,13 @@ static struct option long_options[] = {
   {"compress",	  0,	 0,    'z'},
   {0,0,0,0}};
 
+RETSIGTYPE sigusr1_handler(int val) {
+	exit_cleanup(1);
+}
+
 int main(int argc,char *argv[])
 {
-    int pid, status, status2;
+    int pid, status = 0, status2 = 0;
     int opt;
     int option_index;
     char *shell_cmd = NULL;
@@ -464,7 +500,19 @@ int main(int argc,char *argv[])
     struct file_list *flist;
     char *local_name = NULL;
 
+#ifdef SETPGRP_VOID
+    setpgrp();
+#else
+    setpgrp(0,0);
+#endif
+    signal(SIGUSR1, sigusr1_handler);
+
     starttime = time(NULL);
+    am_root = (getuid() == 0);
+
+    /* we set a 0 umask so that correct file permissions can be
+       carried across */
+    orig_umask = umask(0);
 
     while ((opt = getopt_long(argc, argv, 
 			      short_options, long_options, &option_index)) 
@@ -529,14 +577,23 @@ int main(int argc,char *argv[])
 	  break;
 
 	case 'l':
-#if SUPPORT_LINKS
 	  preserve_links=1;
-#endif
+	  break;
+
+	case 'L':
+	  copy_links=1;
+	  break;
+
+	case 'W':
+	  whole_file=1;
 	  break;
 
 	case 'H':
 #if SUPPORT_HARD_LINKS
 	  preserve_hard_links=1;
+#else 
+	  fprintf(FERROR,"ERROR: hard links not supported on this platform\n");
+	  exit_cleanup(1);
 #endif
 	  break;
 
@@ -545,12 +602,7 @@ int main(int argc,char *argv[])
 	  break;
 
 	case 'o':
-	  if (getuid() == 0) {
-	    preserve_uid=1;
-	  } else {
-	    fprintf(FERROR,"-o only allowed for root\n");
-	    exit_cleanup(1);
-	  }
+	  preserve_uid=1;
 	  break;
 
 	case 'g':
@@ -558,12 +610,7 @@ int main(int argc,char *argv[])
 	  break;
 
 	case 'D':
-	  if (getuid() == 0) {
-	    preserve_devices=1;
-	  } else {
-	    fprintf(FERROR,"-D only allowed for root\n");
-	    exit_cleanup(1);
-	  }
+	  preserve_devices=1;
 	  break;
 
 	case 't':
@@ -586,10 +633,10 @@ int main(int argc,char *argv[])
 	  preserve_perms=1;
 	  preserve_times=1;
 	  preserve_gid=1;
-	  if (getuid() == 0) {
+	  if (am_root) {
 	    preserve_devices=1;
 	    preserve_uid=1;
-	  }	    
+	  }
 	  break;
 
 	case OPT_SERVER:
@@ -608,6 +655,10 @@ int main(int argc,char *argv[])
 	  recurse = 1;
 	  break;
 
+	case 'R':
+	  relative_paths = 1;
+	  break;
+
 	case 'e':
 	  shell_cmd = optarg;
 	  break;
@@ -639,6 +690,13 @@ int main(int argc,char *argv[])
     if (dry_run)
       verbose = MAX(verbose,1);
 
+#ifndef SUPPORT_LINKS
+    if (!am_server && preserve_links) {
+	    fprintf(FERROR,"ERROR: symbolic links not supported\n");
+	    exit_cleanup(1);
+    }
+#endif
+
     if (am_server) {
       setup_protocol(STDOUT_FILENO,STDIN_FILENO);
 	
@@ -712,6 +770,11 @@ int main(int argc,char *argv[])
 
     setup_protocol(f_out,f_in);
 
+#if HAVE_SETLINEBUF
+    setlinebuf(FINFO);
+    setlinebuf(FERROR);
+#endif
+
     if (verbose > 3) 
       fprintf(FERROR,"parent=%d child=%d sender=%d recurse=%d\n",
 	      (int)getpid(),pid,sender,recurse);
@@ -750,3 +813,4 @@ int main(int argc,char *argv[])
 
     return status | status2;
 }
+