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diff src/viminfo.c @ 21580:93dae47699fb v8.2.1340

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patch 8.2.1340: some tests fail on Cirrus CI and/or with FreeBSD Commit: https://github.com/vim/vim/commit/b86abadf87bd0f85f800077171ec4b98aefff776 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 1 16:08:19 2020 +0200 patch 8.2.1340: some tests fail on Cirrus CI and/or with FreeBSD Problem: Some tests fail on Cirrus CI and/or with FreeBSD. Solution: Make 'backupskip' empty. Do not run tests as root. Check for directory when using viminfo. (Ozaki Kiichi, closes #6596)
author Bram Moolenaar <Bram@vim.org>
date Sat, 01 Aug 2020 16:15:04 +0200
parents 298ef749e5fb
children 2d6d70a913c1
line wrap: on
line diff
--- a/src/viminfo.c
+++ b/src/viminfo.c
@@ -3007,6 +3007,7 @@ read_viminfo(
 {
     FILE	*fp;
     char_u	*fname;
+    stat_T	st;		// mch_stat() of existing viminfo file
 
     if (no_viminfo())
 	return FAIL;
@@ -3031,6 +3032,11 @@ read_viminfo(
     vim_free(fname);
     if (fp == NULL)
 	return FAIL;
+    if (mch_fstat(fileno(fp), &st) < 0 || S_ISDIR(st.st_mode))
+    {
+	fclose(fp);
+	return FAIL;
+    }
 
     viminfo_errcnt = 0;
     do_viminfo(fp, NULL, flags);
@@ -3054,12 +3060,12 @@ write_viminfo(char_u *file, int forceit)
     FILE	*fp_out = NULL;	// output viminfo file
     char_u	*tempname = NULL;	// name of temp viminfo file
     stat_T	st_new;		// mch_stat() of potential new file
+    stat_T	st_old;		// mch_stat() of existing viminfo file
 #if defined(UNIX) || defined(VMS)
     mode_t	umask_save;
 #endif
 #ifdef UNIX
     int		shortname = FALSE;	// use 8.3 file name
-    stat_T	st_old;		// mch_stat() of existing viminfo file
 #endif
 #ifdef MSWIN
     int		hidden = FALSE;
@@ -3097,20 +3103,20 @@ write_viminfo(char_u *file, int forceit)
 	// write the new viminfo into, in the same directory as the
 	// existing viminfo file, which will be renamed once all writing is
 	// successful.
+	if (mch_fstat(fileno(fp_in), &st_old) < 0
+		|| S_ISDIR(st_old.st_mode)
 #ifdef UNIX
-	// For Unix we check the owner of the file.  It's not very nice to
-	// overwrite a user's viminfo file after a "su root", with a
-	// viminfo file that the user can't read.
-	st_old.st_dev = (dev_t)0;
-	st_old.st_ino = 0;
-	st_old.st_mode = 0600;
-	if (mch_stat((char *)fname, &st_old) == 0
-		&& getuid() != ROOT_UID
-		&& !(st_old.st_uid == getuid()
-			? (st_old.st_mode & 0200)
-			: (st_old.st_gid == getgid()
-				? (st_old.st_mode & 0020)
-				: (st_old.st_mode & 0002))))
+		// For Unix we check the owner of the file.  It's not very nice
+		// to overwrite a user's viminfo file after a "su root", with a
+		// viminfo file that the user can't read.
+		|| (getuid() != ROOT_UID
+		    && !(st_old.st_uid == getuid()
+			    ? (st_old.st_mode & 0200)
+			    : (st_old.st_gid == getgid()
+				    ? (st_old.st_mode & 0020)
+				    : (st_old.st_mode & 0002))))
+#endif
+		)
 	{
 	    int	tt = msg_didany;
 
@@ -3120,7 +3126,6 @@ write_viminfo(char_u *file, int forceit)
 	    fclose(fp_in);
 	    goto end;
 	}
-#endif
 #ifdef MSWIN
 	// Get the file attributes of the existing viminfo file.
 	hidden = mch_ishidden(fname);