X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fsn-show.c;h=5ecea330e4b5ce89abdfd1f96bde81c4c3ae6391;hb=706f13fcd7c0f729c25b6c1c40309243e106111c;hp=cf24a5985bdb7e05d85f3a331e64b669ba1e5a0f;hpb=8e4a1e11b964e446370df12fbc2d072eb31a7fda;p=sort-networks.git

diff --git a/src/sn-show.c b/src/sn-show.c
index cf24a59..5ecea33 100644
--- a/src/sn-show.c
+++ b/src/sn-show.c
@@ -1,6 +1,6 @@
 /**
- * collectd - src/sn-show.c
- * Copyright (C) 2008  Florian octo Forster
+ * libsortnetwork - src/sn-show.c
+ * Copyright (C) 2008-2010  Florian octo Forster
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -16,41 +16,83 @@
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  *
  * Authors:
- *   Florian octo Forster <octo at verplant.org>
+ *   Florian octo Forster <ff at octo.it>
  **/
 
+#include "config.h"
+
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
+#include <errno.h>
 
 #include "sn_network.h"
 
-int main (int argc, char **argv)
+static int show_fh (FILE *fh) /* {{{ */
 {
   sn_network_t *n;
-  FILE *fh = NULL;
-
-  if (argc == 1)
-    fh = stdin;
-  else if (argc == 2)
-    fh = fopen (argv[1], "r");
 
   if (fh == NULL)
-  {
-    printf ("fh == NULL!\n");
-    return (1);
-  }
+    return (EINVAL);
 
   n = sn_network_read (fh);
-
   if (n == NULL)
   {
-    printf ("n == NULL!\n");
-    return (1);
+    fprintf (stderr, "Parsing comparator network failed.\n");
+    return (EINVAL);
   }
 
   sn_network_show (n);
 
+  sn_network_destroy (n);
+
   return (0);
+} /* }}} int show_fh */
+
+static int show_file (const char *file) /* {{{ */
+{
+  FILE *fh;
+  int status;
+
+  if (file == NULL)
+    return (EINVAL);
+
+  fh = fopen (file, "r");
+  if (fh == NULL)
+  {
+    fprintf (stderr, "Opening file \"%s\" failed: %s\n",
+        file, strerror (errno));
+    return (errno);
+  }
+
+  status = show_fh (fh);
+
+  fclose (fh);
+  return (status);
+} /* }}} int show_file */
+
+int main (int argc, char **argv)
+{
+  if (argc == 1)
+  {
+    show_fh (stdin);
+  }
+  else
+  {
+    int i;
+    for (i = 1; i < argc; i++)
+    {
+      if (i > 1)
+        puts ("\n");
+
+      if (argc > 2)
+        printf ("=== %s ===\n\n", argv[i]);
+
+      show_file (argv[i]);
+    }
+  }
+
+  exit (EXIT_SUCCESS);
 } /* int main */
 
 /* vim: set shiftwidth=2 softtabstop=2 : */