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/*
* This file is part of the sn package.
* Distribution of sn is covered by the GNU GPL. See file COPYING.
* Copyright 1998-2000 Harold Tay.
* Copyright 2000- Patrik Rdman.
*/
/*
* Simple logging function using varargs.
*/
#include <stdarg.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "format.h"
static const char rcsid[] = "$Id$";
static char outbuf[1024];
int log_withpid = 0;
int log_withtime = 0;
int writefv (int fd, char *fmt, va_list ap)
{
int wrote;
int used;
char *p;
int len;
char tmp[40];
int er;
for (used = wrote = 0; *fmt; fmt++)
if ('%' == *fmt)
{
fmt++;
if (!*fmt)
break;
p = vachar(*fmt, &ap, tmp, &len);
for (; len; len--)
{
if (used >= sizeof (outbuf))
{
er = write(fd, outbuf, used);
if (-1 == er)
return (-1);
wrote += er;
used = 0;
}
outbuf[used++] = *p++;
}
}
else
{
if (used >= sizeof (outbuf))
{
er = write(fd, outbuf, used);
if (-1 == er)
return (-1);
wrote += er;
used = 0;
}
outbuf[used++] = *fmt;
}
er = write(fd, outbuf, used);
if (-1 == er)
return (-1);
return (wrote + er);
}
int writef (int fd, char *fmt, ...)
{
va_list ap;
int er;
va_start(ap, fmt);
er = writefv(fd, fmt, ap);
va_end(ap);
return (er);
}
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