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SYSLOG character device channel will now expand LF to CR-LF

This commit is contained in:
Gregory Nutt 2016-06-22 08:36:50 -06:00
parent 8b922b1546
commit 91b82dcae3
1 changed files with 36 additions and 5 deletions
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41
drivers/syslog/syslog_devchannel.c
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@ -61,7 +61,8 @@
/* SYSLOG channel methods */
static int syslog_dev_force(int ch);
static int syslog_devchan_putc(int ch);
static int syslog_devchan_force(int ch);
/****************************************************************************
* Private Data
@ -71,8 +72,8 @@ static int syslog_dev_force(int ch);
static const struct syslog_channel_s g_syslog_dev_channel =
{
syslog_dev_putc,
syslog_dev_force,
syslog_devchan_putc,
syslog_devchan_force,
syslog_dev_flush,
};
@ -81,14 +82,44 @@ static const struct syslog_channel_s g_syslog_dev_channel =
****************************************************************************/
/****************************************************************************
* Name: syslog_dev_force
* Name: syslog_devchan_putc
*
* Description:
* A front-end to syslog_dev_putc that does LF -> CR-LF expansion
*
****************************************************************************/
static int syslog_devchan_putc(int ch)
{
int ret;
/* Check for a linefeed */
if (ch == '/n')
{
/* Pre-pend a carriage return */
ret = syslog_dev_putc('/r');
if (ret < 0)
{
return ret;
}
}
/* Output the provided character */
return syslog_dev_putc(ch);
}
/****************************************************************************
* Name: syslog_devchan_force
*
* Description:
* A dummy FORCE method
*
****************************************************************************/
static int syslog_dev_force(int ch)
static int syslog_devchan_force(int ch)
{
return ch;
}