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gisi: Add getter for 16bit fields

This commit is contained in:
Aki Niemi 2010-11-30 14:51:39 +02:00
parent b477941171
commit 0f0532eb6f
2 changed files with 19 additions and 0 deletions
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17
gisi/message.c
View File

@ -25,6 +25,7 @@
#include <stdint.h>
#include <errno.h>
#include <arpa/inet.h>
#include <glib.h>
#include "message.h"
@ -102,6 +103,22 @@ gboolean g_isi_msg_data_get_byte(const GIsiMessage *msg, unsigned offset,
return TRUE;
}
gboolean g_isi_msg_data_get_word(const GIsiMessage *msg, unsigned offset,
uint16_t *word)
{
const uint8_t *buf = g_isi_msg_data(msg);
uint16_t val;
if (!buf || g_isi_msg_data_len(msg) < offset + 1)
return FALSE;
memcpy(&val, buf + offset, sizeof(uint16_t));
if (word)
*word = ntohs(val);
return TRUE;
}
gboolean g_isi_msg_data_get_struct(const GIsiMessage *msg, unsigned offset,
const void **type, size_t len)
{

2
gisi/message.h
View File

@ -60,6 +60,8 @@ const void *g_isi_msg_data(const GIsiMessage *msg);
gboolean g_isi_msg_data_get_byte(const GIsiMessage *msg, unsigned offset,
uint8_t *byte);
gboolean g_isi_msg_data_get_word(const GIsiMessage *msg, unsigned offset,
uint16_t *word);
gboolean g_isi_msg_data_get_struct(const GIsiMessage *msg, unsigned offset,
const void **type, size_t len);