3 * Copyright (C) Igor Sysoev
7 #include <ngx_config.h>
11 ngx_int_t ngx_daemon(ngx_log_t *log)
17 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "fork() failed");
27 ngx_pid = ngx_getpid();
30 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "setsid() failed");
36 fd = open("/dev/null", O_RDWR);
38 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
39 "open(\"/dev/null\") failed");
43 if (dup2(fd, STDIN_FILENO) == -1) {
44 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDIN) failed");
48 if (dup2(fd, STDOUT_FILENO) == -1) {
49 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDOUT) failed");
54 if (dup2(fd, STDERR_FILENO) == -1) {
55 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDERR) failed");
60 if (fd > STDERR_FILENO) {
61 if (close(fd) == -1) {
62 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "close() failed");