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/*
* libdpkg - Debian packaging suite library routines
* log.c - logging related functions
*
* Copyright © 2005 Scott James Remnant <scott@netsplit.com>
*
* This 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 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 <config.h>
#include <compat.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <time.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdarg.h>
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/fdio.h>
const char *log_file = NULL;
void
log_message(const char *fmt, ...)
{
static struct varbuf log;
static int logfd = -1;
char time_str[20];
time_t now;
struct tm tm;
va_list args;
if (!log_file)
return;
if (logfd < 0) {
logfd = open(log_file, O_WRONLY | O_CREAT | O_APPEND, 0644);
if (logfd < 0) {
notice(_("could not open log '%s': %s"),
log_file, strerror(errno));
log_file = NULL;
return;
}
setcloexec(logfd, log_file);
}
time(&now);
if (localtime_r(&now, &tm) == NULL) {
notice(_("cannot get local time to log into '%s': %s"),
log_file, strerror(errno));
return;
}
strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M:%S", &tm);
va_start(args, fmt);
varbuf_reset(&log);
varbuf_add_str(&log, time_str);
varbuf_add_char(&log, ' ');
varbuf_vprintf(&log, fmt, args);
varbuf_add_char(&log, '\n');
varbuf_end_str(&log);
va_end(args);
if (fd_write(logfd, log.buf, log.used) < 0)
notice(_("cannot write to log file '%s': %s"),
log_file, strerror(errno));
}
struct pipef {
struct pipef *next;
int fd;
};
static struct pipef *status_pipes = NULL;
void
statusfd_add(int fd)
{
struct pipef *pipe_new;
setcloexec(fd, _("<package status and progress file descriptor>"));
pipe_new = nfmalloc(sizeof(*pipe_new));
pipe_new->fd = fd;
pipe_new->next = status_pipes;
status_pipes = pipe_new;
}
void
statusfd_send(const char *fmt, ...)
{
static struct varbuf vb;
struct pipef *pipef;
va_list args;
if (!status_pipes)
return;
va_start(args, fmt);
varbuf_reset(&vb);
varbuf_vprintf(&vb, fmt, args);
/* Sanitize string to not include new lines, as front-ends should be
* doing their own word-wrapping. */
varbuf_map_char(&vb, '\n', ' ');
varbuf_add_char(&vb, '\n');
va_end(args);
for (pipef = status_pipes; pipef; pipef = pipef->next) {
if (fd_write(pipef->fd, vb.buf, vb.used) < 0)
ohshite(_("unable to write to status fd %d"),
pipef->fd);
}
}
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