1 files changed, 134 insertions, 0 deletions
diff --git a/misc.c b/misc.c
new file mode 100644
index 0000000..ad9efbf
--- /dev/null
+++ b/misc.c
@@ -0,0 +1,134 @@
+/* misc.c -- miscellaneous common functions
+   Copyright (C) 1986, 1995 Greg McGary
+  
+   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 Free Software Foundation; either version 2, or (at your option)
+   any later version.
+  
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+  
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to the
+   Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include "strxtra.h"
+#include "misc.h"
+
+char const *
+basename (char const *path)
+{
+  char *base;
+
+  base = strrchr (path, '/');
+  if (base)
+    return ++base;
+  else
+    return path;
+}
+
+char const *
+dirname (char const *path)
+{
+  char *base;
+
+  base = strrchr (path, '/');
+  if (base)
+    return strndup (path, base - path);
+  else
+    return ".";
+}
+
+/* This is like fgets(3s), except that lines are delimited by NULs
+   rather than newlines.  Also, we return the number of characters
+   gotten rather than the address of buf0.  */
+int
+fgets0 (char *buf0, int size, FILE * in_FILE)
+{
+  char *buf;
+  int c;
+  char *end;
+
+  buf = buf0;
+  end = &buf[size];
+  while ((c = getc (in_FILE)) > 0 && buf < end)
+    *buf++ = c;
+  *buf = '\0';
+  return (buf - buf0);
+}
+
+extern char const *program_name;
+
+char const *
+uerror (void)
+{
+  static char errbuf[10];
+
+  if (errno == 0 || errno >= sys_nerr)
+    {
+      sprintf (errbuf, "error %d", errno);
+      return errbuf;
+    }
+  return sys_errlist[errno];
+}
+
+void
+filerr (char const *syscall, char const *file_name)
+{
+  fprintf (stderr, "%s: Cannot %s `%s' (%s)\n", program_name, syscall, file_name, uerror ());
+}
+
+int
+tree8_count_levels (int cardinality)
+{
+  int levels = 1;
+  cardinality--;
+  while (cardinality >>= 3)
+    ++levels;
+  return levels;
+}
+
+int
+gets_past_00 (char *tok, FILE *input_FILE)
+{
+  int got = 0;
+  int c;
+  do
+    {
+      do
+	{
+	  got++;
+	  c = getc (input_FILE);
+	  *tok++ = c;
+	}
+      while (c > 0);
+      got++;
+      c = getc (input_FILE);
+      *tok++ = c;
+    }
+  while (c > 0);
+  return got - 2;
+}
+
+int
+skip_past_00 (FILE *input_FILE)
+{
+  int skipped = 0;
+  do
+    {
+      do
+	skipped++;
+      while (getc (input_FILE) > 0);
+      skipped++;
+    }
+  while (getc (input_FILE) > 0);
+  return skipped;
+}