Add Westermo chomp() function, slightly improved from Finit original.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

chomp.c

@@ -0,0 +1,52 @@
+/* Perl inspired chomp() implementation.
+ *
+ * Copyright (c) 2014  Joachim Nilsson <troglobit@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <string.h>
+
+/**
+ * chomp - Perl like chomp function, chop off last char if newline.
+ * @str: String to chomp
+ *
+ * Returns:
+ * If @str is a valid pointer this function returns @str, otherwise
+ * @errno is set to %EINVAL and this function returns %NULL.
+ */
+char *chomp (char *str)
+{
+   char *p;
+
+   if (!str)
+   {
+      errno = EINVAL;
+      return NULL;
+   }
+
+   p = strrchr (str, '\n');
+   if (p)
+      *p = 0;
+
+   return str;
+}
+
+/**
+ * Local Variables:
+ *  version-control: t
+ *  indent-tabs-mode: nil
+ *  c-file-style: "ellemtel"
+ * End:
+ */