[Goodies-commits] r5916 - xfce4-sensors-plugin/trunk/lib

[Fabian Nowak]

Author: timystery
Date: 2008-11-02 17:26:08 +0000 (Sun, 02 Nov 2008)
New Revision: 5916

Added:
   xfce4-sensors-plugin/trunk/lib/helpers.c
Log:
first version of new file with lots of string helper functions for netcat/hddtemp


Added: xfce4-sensors-plugin/trunk/lib/helpers.c
===================================================================
--- xfce4-sensors-plugin/trunk/lib/helpers.c	                        (rev 0)
+++ xfce4-sensors-plugin/trunk/lib/helpers.c	2008-11-02 17:26:08 UTC (rev 5916)
@@ -0,0 +1,92 @@
+/* $Id:$ */
+
+/*  Copyright 2008 Fabian Nowak (timystery at arcor.de)
+ *
+ *  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.
+ */
+
+/* Note for programmers and editors: Try to use 4 spaces instead of Tab! */
+
+/* Global includes */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * This function behaves exactly as memset.
+ * Memset is broken; it fails when writing an arbitrary number of chars to a valid pointer.
+ */
+void *memset2 (void *s, char c, size_t n)
+{
+    int i;
+    char *p;
+
+    if (s==NULL)
+        return NULL;
+
+    if ( n > strlen((char *) s) )
+        return NULL;
+
+    for (p = s, i=0; i<n; i++)
+    {
+        *p = c;
+        p++;
+        i++;
+    }
+
+    return s;
+}
+
+/* Global variable storing last position in splitte string used for str_split(s, d) */
+char *str_split_position;
+/**
+ * Returns tokens of the string one after the other, split by the string delim.
+ * Just like strtok, initialize with a valid pointer and continue with passing NULL
+ * as string argument.
+ * @param string String to split
+ * @param delim String of the complete delimiting string, order and content are important.
+ * @return pointer onto next token, or NULL on end, or NULL on bad delimiter.
+ */
+char *
+str_split (char *string, char *delim)
+{
+    char *p, *retval;
+    int strlen_delim;
+
+    if (string!=NULL)
+        str_split_position = string;
+
+    if (str_split_position == NULL)
+        return NULL;
+
+    if (delim==NULL)
+        return NULL;
+
+    p = strstr (str_split_position, delim);
+    if (p!=NULL)
+    {
+        strlen_delim = strlen(delim);
+        memset2 (p, '\0', strlen_delim);
+        retval = str_split_position;
+        str_split_position = p + strlen(delim);
+    }
+    else
+    {
+        retval = str_split_position;
+        str_split_position = NULL;
+    }
+
+    return retval;
+}