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/* the Music Player Daemon (MPD)
* (c)2003-2006 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "myfprintf.h"
#include "interface.h"
#include "path.h"
#include "log.h"
#include "conf.h"
#include "utils.h"
#include <stdarg.h>
#include <sys/param.h>
#include <unistd.h>
#include <sys/select.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#define BUFFER_LENGTH MAXPATHLEN+1024
static int myfprintf_stdLogMode = 0;
static FILE *myfprintf_out;
static FILE *myfprintf_err;
static char *myfprintf_outFilename;
static char *myfprintf_errFilename;
static void blockingWrite(const int fd, const char *string, size_t len)
{
while (len) {
size_t ret = xwrite(fd, string, len);
if (ret == len)
return;
if (ret >= 0) {
len -= ret;
string += ret;
continue;
}
return; /* error */
}
}
void vfdprintf(const int fd, const char *fmt, va_list args)
{
static char buffer[BUFFER_LENGTH + 1];
char *buf = buffer;
size_t len;
vsnprintf(buf, BUFFER_LENGTH, fmt, args);
len = strlen(buf);
if (interfacePrintWithFD(fd, buf, len) < 0)
blockingWrite(fd, buf, len);
}
mpd_fprintf void fdprintf(const int fd, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vfdprintf(fd, fmt, args);
va_end(args);
}
void myfprintfStdLogMode(FILE * out, FILE * err)
{
myfprintf_stdLogMode = 1;
myfprintf_out = out;
myfprintf_err = err;
myfprintf_outFilename = parseConfigFilePath(CONF_LOG_FILE, 1)->value;
myfprintf_errFilename = parseConfigFilePath(CONF_ERROR_FILE, 1)->value;
}
int myfprintfCloseAndOpenLogFile(void)
{
if (myfprintf_stdLogMode) {
while (fclose(myfprintf_out) < 0 && errno == EINTR) ;
while (fclose(myfprintf_err) < 0 && errno == EINTR) ;
while ((myfprintf_out =
fopen(myfprintf_outFilename, "a+")) == NULL
&& errno == EINTR) ;
if (!myfprintf_out) {
ERROR("error re-opening log file: %s\n",
myfprintf_outFilename);
return -1;
}
while ((myfprintf_err =
fopen(myfprintf_errFilename, "a+")) == NULL
&& errno == EINTR) ;
if (!myfprintf_err) {
ERROR("error re-opening error file: %s\n",
myfprintf_errFilename);
return -1;
}
while (dup2(fileno(myfprintf_out), 1) < 0 && errno == EINTR) ;
while (dup2(fileno(myfprintf_err), 2) < 0 && errno == EINTR) ;
}
return 0;
}
void myfprintfCloseLogFile(void)
{
if (myfprintf_stdLogMode) {
while (fclose(myfprintf_out) < 0 && errno == EINTR) ;
while (fclose(myfprintf_err) < 0 && errno == EINTR) ;
}
}
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