mirror of
https://github.com/pygos/init.git
synced 2024-11-25 12:30:42 +01:00
97 lines
2 KiB
C
97 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
/*
|
|
* Copyright (C) 2018 - David Oberhollenzer
|
|
*
|
|
* 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 3 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, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
|
|
#include "logfile.h"
|
|
|
|
|
|
logfile_t *logfile_create(const char *ident, const char *name, int facility)
|
|
{
|
|
int dfd = AT_FDCWD;
|
|
logfile_t *file;
|
|
size_t size;
|
|
|
|
size = sizeof(*file) + 1;
|
|
if (ident != NULL)
|
|
size += strlen(ident);
|
|
|
|
file = calloc(1, size);
|
|
if (file == NULL) {
|
|
perror("calloc");
|
|
return NULL;
|
|
}
|
|
|
|
if (ident != NULL) {
|
|
strcpy(file->ident, ident);
|
|
if (mkdir(file->ident, 0750) != 0 && errno != EEXIST) {
|
|
perror(file->ident);
|
|
goto fail;
|
|
}
|
|
|
|
dfd = open(file->ident, O_DIRECTORY | O_RDONLY);
|
|
if (dfd < 0) {
|
|
perror(file->ident);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
file->facility = facility;
|
|
|
|
file->fd = openat(dfd, name, O_WRONLY | O_CREAT, 0640);
|
|
if (file->fd < 0) {
|
|
perror(name);
|
|
goto fail;
|
|
}
|
|
|
|
if (lseek(file->fd, 0, SEEK_END))
|
|
goto fail;
|
|
|
|
if (dfd != AT_FDCWD)
|
|
close(dfd);
|
|
return file;
|
|
fail:
|
|
if (dfd != AT_FDCWD)
|
|
close(dfd);
|
|
free(file);
|
|
return NULL;
|
|
}
|
|
|
|
void logfile_destroy(logfile_t *file)
|
|
{
|
|
close(file->fd);
|
|
free(file);
|
|
}
|
|
|
|
void logfile_write(logfile_t *file, const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
vdprintf(file->fd, format, ap);
|
|
va_end(ap);
|
|
|
|
fsync(file->fd);
|
|
}
|