X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/5afd8aedce004cc11700285c16ea84f1e857d473..66203a982b3d249bafda9b9272c4c103c19e4a9b:/rsync.c

diff --git a/rsync.c b/rsync.c
index 1d62abc4..039e1cd5 100644
--- a/rsync.c
+++ b/rsync.c
@@ -30,7 +30,6 @@ extern int preserve_uid;
 extern int preserve_gid;
 extern int preserve_perms;
 extern int make_backups;
-extern char *backup_suffix;
 
 
 /*
@@ -57,7 +56,7 @@ int delete_file(char *fname)
 	int ret;
 	extern int recurse;
 
-	if (do_unlink(fname) == 0 || errno == ENOENT) return 0;
+	if (robust_unlink(fname) == 0 || errno == ENOENT) return 0;
 
 #if SUPPORT_LINKS
 	ret = do_lstat(fname, &st);
@@ -115,10 +114,10 @@ int delete_file(char *fname)
 
 static int is_in_group(gid_t gid)
 {
-#ifdef HAVE_GETGROUPS
+#ifdef GETGROUPS_T
 	static gid_t last_in = (gid_t) -2, last_out;
 	static int ngroups = -2;
-	static gid_t *gidset;
+	static GETGROUPS_T *gidset;
 	int n;
 
 	if (gid == last_in)
@@ -127,7 +126,7 @@ static int is_in_group(gid_t gid)
 		/* treat failure (-1) as if not member of any group */
 		ngroups = getgroups(0, 0);
 		if (ngroups > 0) {
-			gidset = (gid_t *) malloc(ngroups * sizeof(gid_t));
+			gidset = (GETGROUPS_T *) malloc(ngroups * sizeof(GETGROUPS_T));
 			ngroups = getgroups(ngroups, gidset);
 		}
 	}
@@ -153,7 +152,6 @@ int set_perms(char *fname,struct file_struct *file,STRUCT_STAT *st,
 	int updated = 0;
 	STRUCT_STAT st2;
 	int change_uid, change_gid;
-	extern int am_daemon;
 
 	if (dry_run) return 0;
 
@@ -180,7 +178,7 @@ int set_perms(char *fname,struct file_struct *file,STRUCT_STAT *st,
 	}
 
 	change_uid = am_root && preserve_uid && st->st_uid != file->uid;
-	change_gid = !am_daemon && preserve_gid && file->gid != (gid_t) -1 && \
+	change_gid = preserve_gid && file->gid != (gid_t) -1 && \
 				st->st_gid != file->gid;
 	if (change_gid && !am_root) {
 		/* enforce bsd-style group semantics: non-root can only
@@ -196,18 +194,24 @@ int set_perms(char *fname,struct file_struct *file,STRUCT_STAT *st,
 			rprintf(FERROR,"chown %s : %s\n", fname,strerror(errno));
 			return 0;
 		}
+		/* a lchown had been done - we have to re-stat if the
+                   destination had the setuid or setgid bits set due
+                   to the side effect of the chown call */
+		if (st->st_mode & (S_ISUID | S_ISGID)) {
+			link_stat(fname, st);
+		}
 		updated = 1;
 	}
 
 #ifdef HAVE_CHMOD
-	if (preserve_perms && !S_ISLNK(st->st_mode) &&
-	    (st->st_mode != file->mode || 
-	     (updated && (file->mode & ~INITPERMMASK)))) {
-		updated = 1;
-		if (do_chmod(fname,file->mode) != 0) {
-			rprintf(FERROR,"failed to set permissions on %s : %s\n",
-				fname,strerror(errno));
-			return 0;
+	if (!S_ISLNK(st->st_mode)) {
+		if (st->st_mode != file->mode) {
+			updated = 1;
+			if (do_chmod(fname,file->mode) != 0) {
+				rprintf(FERROR,"failed to set permissions on %s : %s\n",
+					fname,strerror(errno));
+				return 0;
+			}
 		}
 	}
 #endif
@@ -227,26 +231,6 @@ void sig_int(void)
 	exit_cleanup(RERR_SIGNAL);
 }
 
-int make_backup(char *fname)
-{
-	char fnamebak[MAXPATHLEN];
-	if (strlen(fname) + strlen(backup_suffix) > (MAXPATHLEN-1)) {
-		rprintf(FERROR,"backup filename too long\n");
-		return 0;
-	}
-
-	slprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix);
-	if (do_rename(fname,fnamebak) != 0) {
-		if (errno != ENOENT) {
-			rprintf(FERROR,"rename %s %s : %s\n",fname,fnamebak,strerror(errno));
-			return 0;
-		}
-	} else if (verbose > 1) {
-		rprintf(FINFO,"backed up %s to %s\n",fname,fnamebak);
-	}
-	return 1;
-}
-
 
 /* finish off a file transfer, renaming the file and setting the permissions
    and ownership */
@@ -256,26 +240,22 @@ void finish_transfer(char *fname, char *fnametmp, struct file_struct *file)
 		return;
 
 	/* move tmp file over real file */
-	if (do_rename(fnametmp,fname) != 0) {
+	if (robust_rename(fnametmp,fname) != 0) {
 		if (errno == EXDEV) {
 			/* rename failed on cross-filesystem link.  
 			   Copy the file instead. */
-			if (copy_file(fnametmp,fname, file->mode & INITPERMMASK)) {
+			if (copy_file(fnametmp,fname, file->mode & INITACCESSPERMS)) {
 				rprintf(FERROR,"copy %s -> %s : %s\n",
 					fnametmp,fname,strerror(errno));
 			} else {
 				set_perms(fname,file,NULL,0);
 			}
-			do_unlink(fnametmp);
 		} else {
 			rprintf(FERROR,"rename %s -> %s : %s\n",
 				fnametmp,fname,strerror(errno));
-			do_unlink(fnametmp);
 		}
+		do_unlink(fnametmp);
 	} else {
 		set_perms(fname,file,NULL,0);
 	}
 }
-
-
-