Merge pull request #15 from joeladdison/master

Add strcasecmp function to lib

litex/soc/software/include/base/string.h

@@ -33,6 +33,7 @@ char *strcpy(char *dest, const char *src);
 char *strncpy(char *dest, const char *src, size_t count);
 int strcmp(const char *cs, const char *ct);
 int strncmp(const char *cs, const char *ct, size_t count);
+int strcasecmp(const char *cs, const char *ct);
 char *strcat(char *dest, const char *src);
 char *strncat(char *dest, const char *src, size_t n);
 size_t strlen(const char *s);

litex/soc/software/libbase/Makefile

@@ -1,7 +1,8 @@
 include ../include/generated/variables.mak
 include $(SOC_DIRECTORY)/software/common.mak
 
-OBJECTS=exception.o libc.o errno.o crc16.o crc32.o console.o system.o id.o uart.o time.o qsort.o strtod.o spiflash.o
+OBJECTS=exception.o libc.o errno.o crc16.o crc32.o console.o \
+	system.o id.o uart.o time.o qsort.o strtod.o spiflash.o strcasecmp.o
 
 all: crt0-$(CPU).o libbase.a libbase-nofloat.a
 

litex/soc/software/libbase/strcasecmp.c

@@ -0,0 +1,61 @@
+/****************************************************************************
+ * libc/string/lib_strcasecmp.c
+ *
+ *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ *****************************************************************************/
+
+#include <string.h>
+#include <ctype.h>
+
+/****************************************************************************
+ * Public Functions
+ *****************************************************************************/
+
+int strcasecmp(const char *cs, const char *ct)
+{
+  int result;
+  for (;;)
+    {
+      if ((result = (int)toupper(*cs) - (int)toupper(*ct)) != 0 || !*cs)
+        {
+          break;
+        }
+
+      cs++;
+      ct++;
+    }
+  return result;
+}