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vsprintf: add ustrtoll function

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Add 'ustrtoull' function to convert size from string (ex: 1GiB)
to unsigned long long type

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Piotr Wilczek 2013-01-27 22:59:24 +00:00 committed by Tom Rini
parent 7b395232da
commit 7df54d316e
2 changed files with 24 additions and 0 deletions
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1
include/exports.h
View File

@ -24,6 +24,7 @@ int setenv (const char *varname, const char *varvalue);
long simple_strtol(const char *cp,char **endp,unsigned int base);
int strcmp(const char * cs,const char * ct);
unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);
#if defined(CONFIG_CMD_I2C)
int i2c_write (uchar, uint, int , uchar* , int);
int i2c_read (uchar, uint, int , uchar* , int);

23
lib/vsprintf.c
View File

@ -126,6 +126,29 @@ unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
return result;
}
unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
{
unsigned long long result = simple_strtoull(cp, endp, base);
switch (**endp) {
case 'G':
result *= 1024;
/* fall through */
case 'M':
result *= 1024;
/* fall through */
case 'K':
case 'k':
result *= 1024;
if ((*endp)[1] == 'i') {
if ((*endp)[2] == 'B')
(*endp) += 3;
else
(*endp) += 2;
}
}
return result;
}
unsigned long long simple_strtoull(const char *cp, char **endp,
unsigned int base)
{