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Add TCP DNS server

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This commit is contained in:
Nick Peng
2018-12-01 01:22:16 +08:00
parent 7b0145acdb
commit 9eb8aa1571
12 changed files with 599 additions and 56 deletions
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38
src/tlog.c
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@@ -835,6 +835,11 @@ static int _tlog_write_log(struct tlog_log *log, char *buff, int bufflen)
return 0;
}
/* output log to screen */
if (log->logscreen) {
write(STDOUT_FILENO, buff, bufflen);
}
/* if log file size exceeds threshold, start to compress */
if (log->multi_log) {
log->filesize = lseek(log->fd, 0, SEEK_END);
@@ -854,8 +859,18 @@ static int _tlog_write_log(struct tlog_log *log, char *buff, int bufflen)
if (log->fd <= 0) {
/* open a new log file to write */
char logfile[PATH_MAX * 2];
if (_tlog_mkdir(log->logdir) != 0) {
static time_t last_try = 0;
static int print_errmsg = 1;
time_t now;
time(&now);
if (now == last_try) {
return -1;
}
last_try = now;
char logfile[PATH_MAX * 2];
if (_tlog_mkdir(log->logdir) != 0) {
fprintf(stderr, "create log dir %s failed.\n", log->logdir);
return -1;
}
@@ -863,17 +878,18 @@ static int _tlog_write_log(struct tlog_log *log, char *buff, int bufflen)
log->filesize = 0;
log->fd = open(logfile, O_APPEND | O_CREAT | O_WRONLY | O_CLOEXEC, 0640);
if (log->fd < 0) {
fprintf(stderr, "open log file %s failed, %s\n", logfile, strerror(errno));
return -1;
}
if (print_errmsg == 0) {
return -1;
}
/* get log file size */
log->filesize = lseek(log->fd, 0, SEEK_END);
}
fprintf(stderr, "open log file %s failed, %s\n", logfile, strerror(errno));
print_errmsg = 0;
return -1;
}
/* output log to screen */
if (log->logscreen) {
write(STDOUT_FILENO, buff, bufflen);
print_errmsg = 1;
/* get log file size */
log->filesize = lseek(log->fd, 0, SEEK_END);
}
/* write log to file */