From: Jim Meyering <jim@meyering.net>
Date: Tue, 13 Mar 2001 08:48:57 +0000 (+0000)
Subject: (sort): If all the input files are empty, create an empty output file.
X-Git-Tag: FILEUTILS-4_0_42~47
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=811ade551454d824541555edb3ffcfc5ef4e3ee0;p=thirdparty%2Fcoreutils.git

(sort): If all the input files are empty, create an empty output file.
---

diff --git a/src/sort.c b/src/sort.c
index 981c97f062..f9534a1ec3 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -1866,6 +1866,7 @@ sort (char **files, int nfiles, char const *output_file)
 {
   struct buffer buf;
   int n_temp_files = 0;
+  int output_file_created = 0;
 
   buf.alloc = 0;
 
@@ -1909,6 +1910,7 @@ sort (char **files, int nfiles, char const *output_file)
 	      xfclose (fp, file);
 	      tfp = xfopen (output_file, "w");
 	      temp_output = output_file;
+	      output_file_created = 1;
 	    }
 	  else
 	    {
@@ -1928,7 +1930,7 @@ sort (char **files, int nfiles, char const *output_file)
 
 	  xfclose (tfp, temp_output);
 
-	  if (! n_temp_files)
+	  if (output_file_created)
 	    goto finish;
 	}
       xfclose (fp, file);
@@ -1937,7 +1939,7 @@ sort (char **files, int nfiles, char const *output_file)
  finish:
   free (buf.buf);
 
-  if (n_temp_files)
+  if (! output_file_created)
     {
       int i = n_temp_files;
       struct tempnode *node;