Sistema l'errore da me commesso in fase di conversione...

[bertos.git] / mware / sprintf.c

diff --git a/mware/sprintf.c b/mware/sprintf.c
old mode 100755 (executable)
new mode 100644 (file)
index ddecf8d..53cb920
--- a/mware/sprintf.c
+++ b/mware/sprintf.c
@@ -1,8 +1,8 @@
-/*!
+/**
  * \file
  * <!--
- * Copyright (C) 2002,2004 Develer S.r.l. (http://www.develer.com/)
- * This file is part of DevLib - See devlib/README for information.
+ * Copyright 2002, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
+ * This file is part of DevLib - See README.devlib for information.
  * -->
  *
  * \brief sprintf() implementation based on _formatted_write()
@@ -13,6 +13,24 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.11  2006/07/19 12:56:28  bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.10  2005/04/11 19:10:28  bernie
+ *#* Include top-level headers from cfg/ subdir.
+ *#*
+ *#* Revision 1.9  2005/02/18 12:48:01  bernie
+ *#* Fix bug with NULL buffers (caught with unit test).
+ *#*
+ *#* Revision 1.8  2005/02/18 12:34:29  bernie
+ *#* Include <mware/pgm.h> explicitly for non-Harvard archs.
+ *#*
+ *#* Revision 1.7  2004/12/31 17:47:45  bernie
+ *#* Rename UNUSED() to UNUSED_ARG().
+ *#*
+ *#* Revision 1.6  2004/11/16 21:15:19  bernie
+ *#* Fix off-by-one bug in [v]snprintf().
+ *#*
  *#* Revision 1.5  2004/10/03 18:54:36  bernie
  *#* sprintf(): Fix a serious bug; snprintf(): New function.
  *#*
@@ -26,29 +44,12 @@
  *#*
  *#* Revision 1.2  2004/06/03 11:27:09  bernie
  *#* Add dual-license information.
- *#*
- *#* Revision 1.1  2004/05/23 15:43:16  bernie
- *#* Import mware modules.
- *#*
- *#* Revision 1.4  2004/04/03 20:42:27  aleph
- *#* Remove duplicated defines
- *#*
- *#* Revision 1.3  2004/03/24 15:48:53  bernie
- *#* Remove Copyright messages from Doxygen output
- *#*
- *#* Revision 1.2  2004/03/19 16:51:30  bernie
- *#* Add PROGMEM kludge.
- *#*
- *#* Revision 1.1  2004/02/23 09:45:09  aleph
- *#* Add missing library functions.
- *#*
- *#* Revision 1.1  2003/11/13 16:56:37  aleph
- *#* Add first implementation of dsp firmware
- *#*
  *#*/
 
-#include "compiler.h"
-#include "formatwr.h"
+#include <mware/formatwr.h>
+#include <mware/pgm.h>
+#include <cfg/compiler.h>
+
 #include <stdio.h>
 
 
@@ -63,21 +64,26 @@ static void __str_put_char(char c, void *ptr)
        (*((char **)ptr))++;
 }
 
-static void __null_put_char(UNUSED(char, c), UNUSED(void *, ptr))
+static void __null_put_char(UNUSED_ARG(char, c), UNUSED_ARG(void *, ptr))
 {
        /* nop */
 }
 
 
-int PGM_FUNC(vsprintf)(char * str, const char * PGM_ATTR fmt, va_list ap)
+int PGM_FUNC(vsprintf)(char *str, const char * PGM_ATTR fmt, va_list ap)
 {
        int result;
 
-       result = PGM_FUNC(_formatted_write)(
-                       fmt, (str ? __str_put_char : __null_put_char), &str, ap);
+       if (str)
+       {
+               result = PGM_FUNC(_formatted_write)(fmt, __str_put_char, &str, ap);
+
+               /* Terminate string */
+               *str = '\0';
+       }
+       else
+               result = PGM_FUNC(_formatted_write)(fmt, __null_put_char, 0, ap);
 
-       /* Terminate string */
-       *str = '\0';
 
        return result;
 }
@@ -95,7 +101,7 @@ int PGM_FUNC(sprintf)(char *str, const char * fmt, ...)
        return result;
 }
 
-/*!
+/**
  * State information for __sn_put_char()
  */
 struct __sn_state
@@ -104,14 +110,14 @@ struct __sn_state
        size_t len;
 };
 
-/*!
+/**
  * formatted_write() callback used [v]snprintf().
  */
 static void __sn_put_char(char c, void *ptr)
 {
        struct __sn_state *state = (struct __sn_state *)ptr;
 
-       if (state->len > 0)
+       if (state->len)
        {
                --state->len;
                *state->str++ = c;
@@ -119,16 +125,27 @@ static void __sn_put_char(char c, void *ptr)
 }
 
 
-int PGM_FUNC(vsnprintf)(char * str, size_t size, const char * PGM_ATTR fmt, va_list ap)
+int PGM_FUNC(vsnprintf)(char *str, size_t size, const char * PGM_ATTR fmt, va_list ap)
 {
-       int result;
-       struct __sn_state state = { str, size };
-
-       result = PGM_FUNC(_formatted_write)(
-                       fmt, (str ? __sn_put_char : __null_put_char), &state, ap);
+       int result = 0;
 
-       /* Terminate string */
-       *state.str = '\0';
+       /* Make room for traling '\0'. */
+       if (size--)
+       {
+               if (str)
+               {
+                       struct __sn_state state;
+                       state.str = str;
+                       state.len = size;
+
+                       result = PGM_FUNC(_formatted_write)(fmt, __sn_put_char, &state, ap);
+
+                       /* Terminate string. */
+                       *state.str = '\0';
+               }
+               else
+                       result = PGM_FUNC(_formatted_write)(fmt, __null_put_char, 0, ap);
+       }
 
        return result;
 }