Add new parse_uinttype wrappers for strtoul in src/helper/command.[ch].

- Used to improve command argument parsing of unsigned integers values.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2206 b42882b7-edfa-0310-969c-e2dbd0fdcd60

2 files changed, 31 insertions, 0 deletions

diff --git a/src/helper/command.c b/src/helper/command.c
index bda51820..bd6b693e 100644
--- a/src/helper/command.c
+++ b/src/helper/command.c
@@ -848,3 +848,18 @@ long jim_global_long(const char *variable)
 	}
 	return 0;
 }
+
+int parse_ullong(const char *str, unsigned long long *ul)
+{
+	char *end;
+	*ul = strtoull(str, &end, 0);
+	bool okay = *str && !*end && ULLONG_MAX != *ul;
+	return okay ? ERROR_OK : ERROR_COMMAND_SYNTAX_ERROR;
+}
+int parse_ulong(const char *str, unsigned long *ul)
+{
+	char *end;
+	*ul = strtoul(str, &end, 0);
+	bool okay = *str && !*end && ULONG_MAX != *ul;
+	return okay ? ERROR_OK : ERROR_COMMAND_SYNTAX_ERROR;
+}
diff --git a/src/helper/command.h b/src/helper/command.h
index 75e513d8..d5b87641 100644
--- a/src/helper/command.h
+++ b/src/helper/command.h
@@ -107,4 +107,20 @@ void register_jim(command_context_t *context, const char *name, int (*cmd)(Jim_I
 
 long jim_global_long(const char *variable);
 
+int parse_ulong(const char *str, unsigned long *ul);
+int parse_ullong(const char *str, unsigned long long *ul);
+
+#define DEFINE_PARSE_ULONG(name, type, max) \
+	static inline int parse_##name(const char *str, type *ul) \
+	{ \
+		unsigned long n; \
+		int retval = parse_ulong(str, &n); \
+		*ul = n; \
+		return n > (max) ? ERROR_COMMAND_SYNTAX_ERROR : retval; \
+	}	
+DEFINE_PARSE_ULONG(uint, unsigned, UINT_MAX)
+DEFINE_PARSE_ULONG(u32, uint32_t, UINT32_MAX)
+DEFINE_PARSE_ULONG(u16, uint16_t, UINT16_MAX)
+DEFINE_PARSE_ULONG(u8, uint8_t, UINT8_MAX)
+
 #endif /* COMMAND_H */