Initial revision

lib/util.c

@@ -0,0 +1,192 @@
+/*
+    $Id: util.c,v 1.1 2003/03/24 19:01:09 rocky Exp $
+
+    Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
+    Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>
+
+    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 of the License, 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; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "cdio_assert.h"
+#include "util.h"
+
+static const char _rcsid[] = "$Id: util.c,v 1.1 2003/03/24 19:01:09 rocky Exp $";
+
+size_t
+_cdio_strlenv(char **str_array)
+{
+  size_t n = 0;
+
+  cdio_assert (str_array != NULL);
+
+  while(str_array[n])
+    n++;
+
+  return n;
+}
+
+void
+_cdio_strfreev(char **strv)
+{
+  int n;
+  
+  cdio_assert (strv != NULL);
+
+  for(n = 0; strv[n]; n++)
+    free(strv[n]);
+
+  free(strv);
+}
+
+char *
+_cdio_strjoin (char *strv[], unsigned count, const char delim[])
+{
+  size_t len;
+  char *new_str;
+  unsigned n;
+
+  cdio_assert (strv != NULL);
+  cdio_assert (delim != NULL);
+
+  len = (count-1) * strlen (delim);
+
+  for (n = 0;n < count;n++)
+    len += strlen (strv[n]);
+
+  len++;
+
+  new_str = _cdio_malloc (len);
+  new_str[0] = '\0';
+
+  for (n = 0;n < count;n++)
+    {
+      if (n)
+        strcat (new_str, delim);
+      strcat (new_str, strv[n]);
+    }
+  
+  return new_str;
+}
+
+char **
+_cdio_strsplit(const char str[], char delim) /* fixme -- non-reentrant */
+{
+  int n;
+  char **strv = NULL;
+  char *_str, *p;
+  char _delim[2] = { 0, 0 };
+
+  cdio_assert (str != NULL);
+
+  _str = strdup(str);
+  _delim[0] = delim;
+
+  cdio_assert (_str != NULL);
+
+  n = 1;
+  p = _str;
+  while(*p) 
+    if (*(p++) == delim)
+      n++;
+
+  strv = _cdio_malloc (sizeof (char *) * (n+1));
+  
+  n = 0;
+  while((p = strtok(n ? NULL : _str, _delim)) != NULL) 
+    strv[n++] = strdup(p);
+
+  free(_str);
+
+  return strv;
+}
+
+void *
+_cdio_malloc (size_t size)
+{
+  void *new_mem = malloc (size);
+
+  cdio_assert (new_mem != NULL);
+
+  memset (new_mem, 0, size);
+
+  return new_mem;
+}
+
+void *
+_cdio_memdup (const void *mem, size_t count)
+{
+  void *new_mem = NULL;
+
+  if (mem)
+    {
+      new_mem = _cdio_malloc (count);
+      memcpy (new_mem, mem, count);
+    }
+  
+  return new_mem;
+}
+
+char *
+_cdio_strdup_upper (const char str[])
+{
+  char *new_str = NULL;
+
+  if (str)
+    {
+      char *p;
+
+      p = new_str = strdup (str);
+
+      while (*p)
+        {
+          *p = toupper (*p);
+          p++;
+        }
+    }
+
+  return new_str;
+}
+
+uint8_t
+to_bcd8 (uint8_t n)
+{
+  cdio_assert (n < 100);
+
+  return ((n/10)<<4) | (n%10);
+}
+
+uint8_t
+from_bcd8(uint8_t p)
+{
+  return (0xf & p)+(10*(p >> 4));
+}
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "gnu"
+ *  tab-width: 8
+ *  indent-tabs-mode: nil
+ * End:
+ */