/**
* Write log directly to the disk by sending message to FS.
*
* @param fmt The format string.
*
* @return How many chars have been printed.
*****************************************************************************/
PUBLIC int syslog(const char *fmt, ...)
{
int i;
char buf[STR_DEFAULT_LEN];
va_list arg = (va_list)((char*)(&fmt) + 4); /**
* 4: size of `fmt' in
* the stack
*/
i = vsprintf(buf, fmt, arg);
assert(strlen(buf) == i);
return disklog(buf);
}
/**
* Perform syslog() system call .
*
* @return
*****************************************************************************/
PUBLIC int do_disklog()
{
char buf[STR_DEFAULT_LEN];
/* get parameters from the message */
int str_len = fs_msg.CNT; /* length of filename */
int src = fs_msg.source; /* caller proc nr. */
assert(str_len < STR_DEFAULT_LEN);
phys_copy((void*)va2la(TASK_FS, buf), /* to */
(void*)va2la(src, fs_msg.BUF), /* from */
str_len);
buf[str_len] = 0; /* terminate the string */
return disklog(buf);
}
