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/*
* \brief Logging facility with printf()-like interface
* \author Thomas Friebel <yaron@yaron.de>
* \date 2006-03-01
*/
#include <stdio.h>
#include <unistd.h>
#include "ddekit/printf.h"
static FILE *output;
/**
* Log constant string message w/o arguments
*
* \param msg message to be logged
*/
int ddekit_print(const char *msg)
{
int ret;
/* If LOG hasn't been initialized or failed its initialization,
* return the error. */
if (output == NULL)
return -1;
ret = fprintf (output, "%s", msg);
if (!ret)
fflush (output);
return ret;
}
/**
* Log message with print()-like arguments
*
* \param fmt format string followed by optional arguments
*/
int ddekit_printf(const char *fmt, ...)
{
int res;
va_list va;
va_start(va, fmt);
res = ddekit_vprintf(fmt, va);
va_end(va);
return res;
}
/* Log message with vprintf()-like arguments
*
* \param fmt format string
* \param va variable argument list
*/
int ddekit_vprintf(const char *fmt, va_list va)
{
char *tmp = NULL;
int ret;
ret = vasprintf (&tmp, fmt, va);
if (!ret) {
ret = ddekit_print (tmp);
free (tmp);
}
return ret;
}
int log_init ()
{
char *log_file_name = mktemp ("/tmp/dde_log.XXXXXX");
output = fopen (log_file_name, "a+");
if (!output) {
error (0, errno, "open %s", log_file_name);
return -1;
}
return 0;
}
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