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ACPICA: iASL: Update to use internal acpi_ut_strtoul64 function 

ACPICA commit e959584d23b520c53700e90282312d17b9603ed5

Was using a local Strtoul64, update to use the common acpi_ut_strtoul64
and remove the local Strtoul64.

Link: https://github.com/acpica/acpica/commit/e959584d
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2016-02-19 14:16:27 +08:00 committed by Rafael J. Wysocki
parent 27eb7485a7
commit 50db3052da
1 changed files with 210 additions and 42 deletions
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252
drivers/acpi/acpica/utnonansi.c
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@ -140,6 +140,67 @@ int acpi_ut_stricmp(char *string1, char *string2)
return (c1 - c2);
}
#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION)
/*******************************************************************************
*
* FUNCTION: acpi_ut_safe_strcpy, acpi_ut_safe_strcat, acpi_ut_safe_strncat
*
* PARAMETERS: Adds a "DestSize" parameter to each of the standard string
* functions. This is the size of the Destination buffer.
*
* RETURN: TRUE if the operation would overflow the destination buffer.
*
* DESCRIPTION: Safe versions of standard Clib string functions. Ensure that
* the result of the operation will not overflow the output string
* buffer.
*
* NOTE: These functions are typically only helpful for processing
* user input and command lines. For most ACPICA code, the
* required buffer length is precisely calculated before buffer
* allocation, so the use of these functions is unnecessary.
*
******************************************************************************/
u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source)
{
if (strlen(source) >= dest_size) {
return (TRUE);
}
strcpy(dest, source);
return (FALSE);
}
u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source)
{
if ((strlen(dest) + strlen(source)) >= dest_size) {
return (TRUE);
}
strcat(dest, source);
return (FALSE);
}
u8
acpi_ut_safe_strncat(char *dest,
acpi_size dest_size,
char *source, acpi_size max_transfer_length)
{
acpi_size actual_transfer_length;
actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source));
if ((strlen(dest) + actual_transfer_length) >= dest_size) {
return (TRUE);
}
strncat(dest, source, max_transfer_length);
return (FALSE);
}
#endif
/*******************************************************************************
*
* FUNCTION: acpi_ut_strtoul64
@ -155,7 +216,15 @@ int acpi_ut_stricmp(char *string1, char *string2)
* 32-bit or 64-bit conversion, depending on the current mode
* of the interpreter.
*
* NOTE: Does not support Octal strings, not needed.
* NOTES: acpi_gbl_integer_byte_width should be set to the proper width.
* For the core ACPICA code, this width depends on the DSDT
* version. For iASL, the default byte width is always 8.
*
* Does not support Octal strings, not needed at this time.
*
* There is an earlier version of the function after this one,
* below. It is slightly different than this one, and the two
* may eventually may need to be merged. (01/2016).
*
******************************************************************************/
@ -318,63 +387,162 @@ error_exit:
}
}
#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION)
#ifdef _OBSOLETE_FUNCTIONS
/* TBD: use version in ACPICA main code base? */
/* DONE: 01/2016 */
/*******************************************************************************
*
* FUNCTION: acpi_ut_safe_strcpy, acpi_ut_safe_strcat, acpi_ut_safe_strncat
* FUNCTION: strtoul64
*
* PARAMETERS: Adds a "DestSize" parameter to each of the standard string
* functions. This is the size of the Destination buffer.
* PARAMETERS: string - Null terminated string
* terminater - Where a pointer to the terminating byte
* is returned
* base - Radix of the string
*
* RETURN: TRUE if the operation would overflow the destination buffer.
* RETURN: Converted value
*
* DESCRIPTION: Safe versions of standard Clib string functions. Ensure that
* the result of the operation will not overflow the output string
* buffer.
*
* NOTE: These functions are typically only helpful for processing
* user input and command lines. For most ACPICA code, the
* required buffer length is precisely calculated before buffer
* allocation, so the use of these functions is unnecessary.
* DESCRIPTION: Convert a string into an unsigned value.
*
******************************************************************************/
u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source)
acpi_status strtoul64(char *string, u32 base, u64 *ret_integer)
{
u32 index;
u32 sign;
u64 return_value = 0;
acpi_status status = AE_OK;
if (strlen(source) >= dest_size) {
return (TRUE);
*ret_integer = 0;
switch (base) {
case 0:
case 8:
case 10:
case 16:
break;
default:
/*
* The specified Base parameter is not in the domain of
* this function:
*/
return (AE_BAD_PARAMETER);
}
strcpy(dest, source);
return (FALSE);
}
/* Skip over any white space in the buffer: */
u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source)
{
if ((strlen(dest) + strlen(source)) >= dest_size) {
return (TRUE);
while (isspace((int)*string) || *string == '\t') {
++string;
}
strcat(dest, source);
return (FALSE);
}
u8
acpi_ut_safe_strncat(char *dest,
acpi_size dest_size,
char *source, acpi_size max_transfer_length)
{
acpi_size actual_transfer_length;
actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source));
if ((strlen(dest) + actual_transfer_length) >= dest_size) {
return (TRUE);
/*
* The buffer may contain an optional plus or minus sign.
* If it does, then skip over it but remember what is was:
*/
if (*string == '-') {
sign = ACPI_SIGN_NEGATIVE;
++string;
} else if (*string == '+') {
++string;
sign = ACPI_SIGN_POSITIVE;
} else {
sign = ACPI_SIGN_POSITIVE;
}
strncat(dest, source, max_transfer_length);
return (FALSE);
/*
* If the input parameter Base is zero, then we need to
* determine if it is octal, decimal, or hexadecimal:
*/
if (base == 0) {
if (*string == '0') {
if (tolower((int)*(++string)) == 'x') {
base = 16;
++string;
} else {
base = 8;
}
} else {
base = 10;
}
}
/*
* For octal and hexadecimal bases, skip over the leading
* 0 or 0x, if they are present.
*/
if (base == 8 && *string == '0') {
string++;
}
if (base == 16 && *string == '0' && tolower((int)*(++string)) == 'x') {
string++;
}
/* Main loop: convert the string to an unsigned long */
while (*string) {
if (isdigit((int)*string)) {
index = ((u8)*string) - '0';
} else {
index = (u8)toupper((int)*string);
if (isupper((int)index)) {
index = index - 'A' + 10;
} else {
goto error_exit;
}
}
if (index >= base) {
goto error_exit;
}
/* Check to see if value is out of range: */
if (return_value > ((ACPI_UINT64_MAX - (u64)index) / (u64)base)) {
goto error_exit;
} else {
return_value *= base;
return_value += index;
}
++string;
}
/* If a minus sign was present, then "the conversion is negated": */
if (sign == ACPI_SIGN_NEGATIVE) {
return_value = (ACPI_UINT32_MAX - return_value) + 1;
}
*ret_integer = return_value;
return (status);
error_exit:
switch (base) {
case 8:
status = AE_BAD_OCTAL_CONSTANT;
break;
case 10:
status = AE_BAD_DECIMAL_CONSTANT;
break;
case 16:
status = AE_BAD_HEX_CONSTANT;
break;
default:
/* Base validated above */
break;
}
return (status);
}
#endif