fwupd/libfwupdplugin/fu-firmware-common.c

124 lines
2.7 KiB
C

/*
* Copyright (C) 2015-2019 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#define G_LOG_DOMAIN "FuFirmware"
#include <config.h>
#include <string.h>
#include "fu-firmware-common.h"
/**
* fu_firmware_strparse_uint4:
* @data: a string
*
* Parses a base 16 number from a string.
*
* The string MUST be at least 1 byte long as this function cannot check the
* length of @data. Checking the size must be done in the caller.
*
* Return value: A parsed value, or 0 for error
*
* Since: 1.3.1
**/
guint8
fu_firmware_strparse_uint4 (const gchar *data)
{
gchar buffer[2];
memcpy (buffer, data, 1);
buffer[1] = '\0';
return (guint8) g_ascii_strtoull (buffer, NULL, 16);
}
/**
* fu_firmware_strparse_uint8:
* @data: a string
*
* Parses a base 16 number from a string.
*
* The string MUST be at least 2 bytes long as this function cannot check the
* length of @data. Checking the size must be done in the caller.
*
* Return value: A parsed value, or 0 for error
*
* Since: 1.3.1
**/
guint8
fu_firmware_strparse_uint8 (const gchar *data)
{
gchar buffer[3];
memcpy (buffer, data, 2);
buffer[2] = '\0';
return (guint8) g_ascii_strtoull (buffer, NULL, 16);
}
/**
* fu_firmware_strparse_uint16:
* @data: a string
*
* Parses a base 16 number from a string.
*
* The string MUST be at least 4 bytes long as this function cannot check the
* length of @data. Checking the size must be done in the caller.
*
* Return value: A parsed value, or 0 for error
*
* Since: 1.3.1
**/
guint16
fu_firmware_strparse_uint16 (const gchar *data)
{
gchar buffer[5];
memcpy (buffer, data, 4);
buffer[4] = '\0';
return (guint16) g_ascii_strtoull (buffer, NULL, 16);
}
/**
* fu_firmware_strparse_uint24:
* @data: a string
*
* Parses a base 16 number from a string.
*
* The string MUST be at least 6 bytes long as this function cannot check the
* length of @data. Checking the size must be done in the caller.
*
* Return value: A parsed value, or 0 for error
*
* Since: 1.3.1
**/
guint32
fu_firmware_strparse_uint24 (const gchar *data)
{
gchar buffer[7];
memcpy (buffer, data, 6);
buffer[6] = '\0';
return (guint32) g_ascii_strtoull (buffer, NULL, 16);
}
/**
* fu_firmware_strparse_uint32:
* @data: a string
*
* Parses a base 16 number from a string.
*
* The string MUST be at least 8 bytes long as this function cannot check the
* length of @data. Checking the size must be done in the caller.
*
* Return value: A parsed value, or 0 for error
*
* Since: 1.3.1
**/
guint32
fu_firmware_strparse_uint32 (const gchar *data)
{
gchar buffer[9];
memcpy (buffer, data, 8);
buffer[8] = '\0';
return (guint32) g_ascii_strtoull (buffer, NULL, 16);
}