| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_event.h> |
| #include <nginx.h> |
| |
| |
| typedef struct { |
| ngx_flag_t daemon; |
| ngx_flag_t master; |
| ngx_flag_t worker_reopen; |
| uid_t user; |
| gid_t group; |
| ngx_str_t pid; |
| ngx_str_t newpid; |
| } ngx_core_conf_t; |
| |
| |
| typedef struct { |
| ngx_file_t pid; |
| char *name; |
| char *const *argv; |
| } ngx_master_ctx_t; |
| |
| |
| static void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx); |
| static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx); |
| static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data); |
| static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle, char **envp); |
| static ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv); |
| static ngx_int_t ngx_core_module_init(ngx_cycle_t *cycle); |
| static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| |
| |
| static ngx_str_t core_name = ngx_string("core"); |
| |
| static ngx_command_t ngx_core_commands[] = { |
| |
| { ngx_string("user"), |
| NGX_MAIN_CONF|NGX_CONF_TAKE12, |
| ngx_set_user, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("daemon"), |
| NGX_MAIN_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_core_flag_slot, |
| 0, |
| offsetof(ngx_core_conf_t, daemon), |
| NULL }, |
| |
| { ngx_string("master_process"), |
| NGX_MAIN_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_core_flag_slot, |
| 0, |
| offsetof(ngx_core_conf_t, master), |
| NULL }, |
| |
| { ngx_string("worker_reopen"), |
| NGX_MAIN_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_core_flag_slot, |
| 0, |
| offsetof(ngx_core_conf_t, worker_reopen), |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| ngx_module_t ngx_core_module = { |
| NGX_MODULE, |
| &core_name, /* module context */ |
| ngx_core_commands, /* module directives */ |
| NGX_CORE_MODULE, /* module type */ |
| ngx_core_module_init, /* init module */ |
| NULL /* init child */ |
| }; |
| |
| |
| ngx_int_t ngx_max_module; |
| ngx_uint_t ngx_connection_counter; |
| |
| ngx_int_t ngx_process; |
| ngx_pid_t ngx_pid; |
| ngx_pid_t ngx_new_binary; |
| |
| ngx_int_t ngx_inherited; |
| ngx_int_t ngx_reap; |
| ngx_int_t ngx_timer; |
| ngx_int_t ngx_terminate; |
| ngx_int_t ngx_quit; |
| ngx_int_t ngx_noaccept; |
| ngx_int_t ngx_reconfigure; |
| ngx_int_t ngx_reopen; |
| ngx_int_t ngx_change_binary; |
| |
| |
| int main(int argc, char *const *argv, char **envp) |
| { |
| ngx_fd_t fd; |
| ngx_int_t i; |
| ngx_log_t *log; |
| ngx_cycle_t *cycle, init_cycle; |
| ngx_open_file_t *file; |
| ngx_core_conf_t *ccf; |
| ngx_master_ctx_t ctx; |
| #if !(WIN32) |
| size_t len; |
| char pid[/* STUB */ 10]; |
| #endif |
| |
| #if __FreeBSD__ |
| ngx_debug_init(); |
| #endif |
| |
| /* TODO */ ngx_max_sockets = -1; |
| |
| ngx_time_init(); |
| |
| #if (HAVE_PCRE) |
| ngx_regex_init(); |
| #endif |
| |
| log = ngx_log_init_errlog(); |
| ngx_pid = ngx_getpid(); |
| |
| /* init_cycle->log is required for signal handlers */ |
| |
| ngx_memzero(&init_cycle, sizeof(ngx_cycle_t)); |
| init_cycle.log = log; |
| ngx_cycle = &init_cycle; |
| |
| if (ngx_os_init(log) == NGX_ERROR) { |
| return 1; |
| } |
| |
| ngx_max_module = 0; |
| for (i = 0; ngx_modules[i]; i++) { |
| ngx_modules[i]->index = ngx_max_module++; |
| } |
| |
| if (!(init_cycle.pool = ngx_create_pool(1024, log))) { |
| return 1; |
| } |
| |
| if (ngx_add_inherited_sockets(&init_cycle, envp) == NGX_ERROR) { |
| return 1; |
| } |
| |
| cycle = ngx_init_cycle(&init_cycle); |
| if (cycle == NULL) { |
| return 1; |
| } |
| |
| ngx_cycle = cycle; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| ngx_process = (ccf->master != 0) ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE; |
| |
| #if (WIN32) |
| |
| #if 0 |
| |
| if (run_as_service) { |
| if (ngx_servie(cycle->log) == NGX_ERROR) { |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| #endif |
| |
| #else |
| |
| if (!ngx_inherited && ccf->daemon != 0) { |
| if (ngx_daemon(cycle->log) == NGX_ERROR) { |
| return 1; |
| } |
| } |
| |
| if (ccf->pid.len == 0) { |
| ccf->pid.len = sizeof(NGINX_PID) - 1; |
| ccf->pid.data = NGINX_PID; |
| ccf->newpid.len = sizeof(NGINX_NEW_PID) - 1; |
| ccf->newpid.data = NGINX_NEW_PID; |
| } |
| |
| len = ngx_snprintf(pid, /* STUB */ 10, PID_T_FMT, ngx_getpid()); |
| ngx_memzero(&ctx.pid, sizeof(ngx_file_t)); |
| ctx.pid.name = ngx_inherited ? ccf->newpid : ccf->pid; |
| ctx.name = ccf->pid.data; |
| |
| ctx.pid.fd = ngx_open_file(ctx.pid.name.data, NGX_FILE_RDWR, |
| NGX_FILE_CREATE_OR_OPEN); |
| |
| if (ctx.pid.fd == NGX_INVALID_FILE) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
| ngx_open_file_n " \"%s\" failed", ctx.pid.name.data); |
| return 1; |
| } |
| |
| if (ngx_write_file(&ctx.pid, pid, len, 0) == NGX_ERROR) { |
| return 1; |
| } |
| |
| if (ngx_close_file(ctx.pid.fd) == NGX_FILE_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| ngx_close_file_n " \"%s\" failed", ctx.pid.name.data); |
| } |
| |
| #endif |
| |
| ctx.argv = argv; |
| |
| ngx_master_process_cycle(cycle, &ctx); |
| |
| return 0; |
| } |
| |
| |
| /* TODO: broken NGX_PROCESS_SINGLE */ |
| |
| static void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx) |
| { |
| int signo; |
| sigset_t set; |
| struct timeval tv; |
| struct itimerval itv; |
| ngx_uint_t i, live; |
| ngx_msec_t delay; |
| ngx_core_conf_t *ccf; |
| |
| sigemptyset(&set); |
| sigaddset(&set, SIGCHLD); |
| sigaddset(&set, SIGALRM); |
| sigaddset(&set, SIGINT); |
| sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL)); |
| sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL)); |
| sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL)); |
| sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL)); |
| sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL)); |
| sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL)); |
| |
| if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "sigprocmask() failed"); |
| } |
| |
| sigemptyset(&set); |
| |
| ngx_setproctitle("master process"); |
| |
| ngx_new_binary = 0; |
| delay = 0; |
| signo = 0; |
| live = 0; |
| |
| for ( ;; ) { |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "new cycle"); |
| |
| if (ngx_process == NGX_PROCESS_MASTER) { |
| ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL, |
| "worker process", NGX_PROCESS_RESPAWN); |
| |
| /* |
| * we have to limit the maximum life time of the worker processes |
| * by 1 month because our millisecond event timer is limited |
| * by 49 days on 32-bit platforms |
| */ |
| |
| itv.it_interval.tv_sec = 0; |
| itv.it_interval.tv_usec = 0; |
| itv.it_value.tv_sec = 30 * 24 * 60 * 60; |
| itv.it_value.tv_usec = 0; |
| |
| if (setitimer(ITIMER_REAL, &itv, NULL) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "setitimer() failed"); |
| } |
| |
| live = 1; |
| |
| } else { |
| ngx_init_temp_number(); |
| |
| for (i = 0; ngx_modules[i]; i++) { |
| if (ngx_modules[i]->init_process) { |
| if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { |
| /* fatal */ |
| exit(1); |
| } |
| } |
| } |
| } |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, |
| ngx_core_module); |
| |
| /* a cycle with the same configuration because a new one is invalid */ |
| |
| for ( ;; ) { |
| |
| /* an event loop */ |
| |
| for ( ;; ) { |
| |
| if (ngx_process == NGX_PROCESS_MASTER) { |
| if (delay) { |
| delay *= 2; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "temination cycle: %d", delay); |
| |
| itv.it_interval.tv_sec = 0; |
| itv.it_interval.tv_usec = 0; |
| itv.it_value.tv_sec = delay / 1000; |
| itv.it_value.tv_usec = (delay % 1000 ) * 1000; |
| |
| if (setitimer(ITIMER_REAL, &itv, NULL) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "setitimer() failed"); |
| } |
| } |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "sigsuspend"); |
| |
| sigsuspend(&set); |
| |
| ngx_gettimeofday(&tv); |
| ngx_time_update(tv.tv_sec); |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "wake up"); |
| |
| } else { /* NGX_PROCESS_SINGLE */ |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "worker cycle"); |
| |
| ngx_process_events(cycle->log); |
| live = 0; |
| } |
| |
| if (ngx_reap) { |
| ngx_reap = 0; |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "reap childs"); |
| |
| live = 0; |
| for (i = 0; i < ngx_last_process; i++) { |
| |
| ngx_log_debug5(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| "child: " PID_T_FMT |
| " e:%d t:%d d:%d r:%d", |
| ngx_processes[i].pid, |
| ngx_processes[i].exiting, |
| ngx_processes[i].exited, |
| ngx_processes[i].detached, |
| ngx_processes[i].respawn); |
| |
| if (ngx_processes[i].exited) { |
| |
| if (ngx_processes[i].respawn |
| && !ngx_processes[i].exiting |
| && !ngx_terminate |
| && !ngx_quit) |
| { |
| if (ngx_spawn_process(cycle, |
| ngx_processes[i].proc, |
| ngx_processes[i].data, |
| ngx_processes[i].name, i) |
| == NGX_ERROR) |
| { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
| "can not respawn %s", |
| ngx_processes[i].name); |
| continue; |
| } |
| |
| live = 1; |
| |
| continue; |
| } |
| |
| if (ngx_processes[i].pid == ngx_new_binary) { |
| ngx_new_binary = 0; |
| |
| /* TODO: if (ngx_noaccept) ngx_configure = 1 */ |
| } |
| |
| if (i != --ngx_last_process) { |
| ngx_processes[i--] = |
| ngx_processes[ngx_last_process]; |
| } |
| |
| } else if (ngx_processes[i].exiting |
| || !ngx_processes[i].detached) |
| { |
| live = 1; |
| } |
| } |
| } |
| |
| if (!live && (ngx_terminate || ngx_quit)) { |
| ngx_master_exit(cycle, ctx); |
| } |
| |
| if (ngx_terminate) { |
| if (delay == 0) { |
| delay = 50; |
| } |
| |
| if (delay > 1000) { |
| signo = SIGKILL; |
| } else { |
| signo = ngx_signal_value(NGX_TERMINATE_SIGNAL); |
| } |
| |
| } else if (ngx_quit) { |
| signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL); |
| |
| } else if (ngx_timer) { |
| signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL); |
| |
| } else { |
| |
| if (ngx_noaccept) { |
| signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL); |
| } |
| |
| if (ngx_change_binary) { |
| ngx_change_binary = 0; |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
| "changing binary"); |
| ngx_new_binary = ngx_exec_new_binary(cycle, ctx->argv); |
| } |
| |
| if (ngx_reconfigure) { |
| signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL); |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
| "reconfiguring"); |
| } |
| |
| if (ngx_reopen) { |
| if (ngx_process == NGX_PROCESS_MASTER) { |
| if (ccf->worker_reopen != 0) { |
| signo = ngx_signal_value(NGX_REOPEN_SIGNAL); |
| ngx_reopen = 0; |
| |
| } else if (ngx_noaccept) { |
| ngx_reopen = 0; |
| |
| } else { |
| signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL); |
| } |
| |
| } else { /* NGX_PROCESS_SINGLE */ |
| ngx_reopen = 0; |
| } |
| |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
| "reopening logs"); |
| ngx_reopen_files(cycle, |
| ccf->worker_reopen != 0 ? ccf->user : (uid_t) -1); |
| } |
| } |
| |
| if (signo) { |
| for (i = 0; i < ngx_last_process; i++) { |
| |
| if (ngx_processes[i].detached) { |
| continue; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
| "kill (" PID_T_FMT ", %d)" , |
| ngx_processes[i].pid, signo); |
| |
| if (kill(ngx_processes[i].pid, signo) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "kill(%d, %d) failed", |
| ngx_processes[i].pid, signo); |
| continue; |
| } |
| |
| if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) { |
| ngx_processes[i].exiting = 1; |
| } |
| } |
| |
| signo = 0; |
| } |
| |
| if (ngx_reopen || ngx_reconfigure || ngx_timer) { |
| break; |
| } |
| } |
| |
| if (ngx_reopen) { |
| ngx_reopen = 0; |
| |
| } else if (ngx_timer) { |
| ngx_timer = 0; |
| |
| } else if (ngx_noaccept) { |
| ngx_noaccept = 0; |
| ngx_reconfigure = 0; |
| |
| } else { |
| cycle = ngx_init_cycle(cycle); |
| if (cycle == NULL) { |
| cycle = (ngx_cycle_t *) ngx_cycle; |
| continue; |
| } |
| |
| ngx_cycle = cycle; |
| ngx_reconfigure = 0; |
| } |
| |
| break; |
| } |
| } |
| } |
| |
| |
| static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx) |
| { |
| char *name; |
| |
| if (ngx_inherited && getppid() > 1) { |
| name = ctx->pid.name.data; |
| |
| } else { |
| name = ctx->name; |
| } |
| |
| if (ngx_delete_file(name) == NGX_FILE_ERROR) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| ngx_delete_file_n " \"%s\" failed", name); |
| } |
| |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exit"); |
| exit(0); |
| } |
| |
| |
| static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data) |
| { |
| sigset_t set; |
| ngx_int_t i; |
| ngx_listening_t *ls; |
| ngx_core_conf_t *ccf; |
| |
| ngx_process = NGX_PROCESS_WORKER; |
| ngx_last_process = 0; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| if (ccf->group != (gid_t) NGX_CONF_UNSET) { |
| if (setuid(ccf->group) == -1) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
| "setgid(%d) failed", ccf->group); |
| /* fatal */ |
| exit(2); |
| } |
| } |
| |
| if (ccf->user != (uid_t) NGX_CONF_UNSET && geteuid() == 0) { |
| if (setuid(ccf->user) == -1) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
| "setuid(%d) failed", ccf->user); |
| /* fatal */ |
| exit(2); |
| } |
| } |
| |
| #if (HAVE_PR_SET_DUMPABLE) |
| |
| /* allow coredump after setuid() in Linux 2.4.x */ |
| |
| if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "prctl(PR_SET_DUMPABLE) failed"); |
| } |
| |
| #endif |
| |
| sigemptyset(&set); |
| |
| if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "sigprocmask() failed"); |
| } |
| |
| ngx_init_temp_number(); |
| |
| /* |
| * disable deleting previous events for the listening sockets because |
| * in the worker processes there are no events at all at this point |
| */ |
| ls = cycle->listening.elts; |
| for (i = 0; i < cycle->listening.nelts; i++) { |
| ls[i].remain = 0; |
| } |
| |
| for (i = 0; ngx_modules[i]; i++) { |
| if (ngx_modules[i]->init_process) { |
| if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { |
| /* fatal */ |
| exit(1); |
| } |
| } |
| } |
| |
| ngx_setproctitle("worker process"); |
| |
| /* TODO: threads: start ngx_worker_thread_cycle() */ |
| |
| for ( ;; ) { |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle"); |
| |
| ngx_process_events(cycle->log); |
| |
| if (ngx_terminate) { |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exiting"); |
| exit(0); |
| } |
| |
| if (ngx_quit) { |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
| "gracefully shutting down"); |
| ngx_setproctitle("worker process is shutting down"); |
| break; |
| } |
| |
| if (ngx_reopen) { |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reopen logs"); |
| ngx_reopen_files(cycle, -1); |
| ngx_reopen = 0; |
| } |
| } |
| |
| ngx_close_listening_sockets(cycle); |
| |
| for ( ;; ) { |
| if (ngx_event_timer_rbtree == &ngx_event_timer_sentinel) { |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exiting"); |
| exit(0); |
| } |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle"); |
| |
| ngx_process_events(cycle->log); |
| |
| if (ngx_reopen) { |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reopen logs"); |
| ngx_reopen_files(cycle, -1); |
| ngx_reopen = 0; |
| } |
| } |
| } |
| |
| |
| static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle, char **envp) |
| { |
| char *p, *v; |
| ngx_socket_t s; |
| ngx_listening_t *ls; |
| |
| for ( /* void */ ; *envp; envp++) { |
| if (ngx_strncmp(*envp, NGINX_VAR, NGINX_VAR_LEN) != 0) { |
| continue; |
| } |
| |
| ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
| "using inherited sockets from \"%s\"", *envp); |
| |
| ngx_init_array(cycle->listening, cycle->pool, |
| 10, sizeof(ngx_listening_t), NGX_ERROR); |
| |
| for (p = *envp + NGINX_VAR_LEN, v = p; *p; p++) { |
| if (*p == ':' || *p == ';') { |
| s = ngx_atoi(v, p - v); |
| if (s == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, |
| "invalid socket number \"%s\" " |
| "in NGINX enviroment variable, " |
| "ignoring the rest of the variable", v); |
| break; |
| } |
| v = p + 1; |
| |
| if (!(ls = ngx_push_array(&cycle->listening))) { |
| return NGX_ERROR; |
| } |
| |
| ls->fd = s; |
| } |
| } |
| |
| ngx_inherited = 1; |
| |
| return ngx_set_inherited_sockets(cycle); |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv) |
| { |
| char *env[2], *var, *p; |
| ngx_int_t i; |
| ngx_pid_t pid; |
| ngx_exec_ctx_t ctx; |
| ngx_listening_t *ls; |
| |
| ctx.path = argv[0]; |
| ctx.name = "new binary process"; |
| ctx.argv = argv; |
| |
| var = ngx_alloc(NGINX_VAR_LEN |
| + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 1, |
| cycle->log); |
| |
| p = ngx_cpymem(var, NGINX_VAR, NGINX_VAR_LEN); |
| |
| ls = cycle->listening.elts; |
| for (i = 0; i < cycle->listening.nelts; i++) { |
| p += ngx_snprintf(p, NGX_INT32_LEN + 2, "%u;", ls[i].fd); |
| } |
| |
| env[0] = var; |
| env[1] = NULL; |
| ctx.envp = (char *const *) &env; |
| |
| pid = ngx_exec(cycle, &ctx); |
| |
| ngx_free(var); |
| |
| return pid; |
| } |
| |
| |
| static ngx_int_t ngx_core_module_init(ngx_cycle_t *cycle) |
| { |
| ngx_core_conf_t *ccf; |
| |
| /* |
| * ngx_core_module has a special init procedure: it is called by |
| * ngx_init_cycle() before the configuration file parsing to create |
| * ngx_core_module configuration and to set its default parameters |
| */ |
| |
| if (((void **)(cycle->conf_ctx))[ngx_core_module.index] != NULL) { |
| return NGX_OK; |
| } |
| |
| if (!(ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)))) { |
| return NGX_ERROR; |
| } |
| /* set by pcalloc() |
| * |
| * ccf->pid = NULL; |
| */ |
| ccf->daemon = NGX_CONF_UNSET; |
| ccf->master = NGX_CONF_UNSET; |
| ccf->worker_reopen = NGX_CONF_UNSET; |
| ccf->user = (uid_t) NGX_CONF_UNSET; |
| ccf->group = (gid_t) NGX_CONF_UNSET; |
| |
| ((void **)(cycle->conf_ctx))[ngx_core_module.index] = ccf; |
| |
| return NGX_OK; |
| } |
| |
| |
| static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| struct passwd *pwd; |
| struct group *grp; |
| ngx_str_t *value; |
| ngx_core_conf_t *ccf; |
| |
| ccf = *(void **)conf; |
| |
| if (ccf->user != (uid_t) NGX_CONF_UNSET) { |
| return "is duplicate"; |
| } |
| |
| value = (ngx_str_t *) cf->args->elts; |
| |
| pwd = getpwnam(value[1].data); |
| if (pwd == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
| "getpwnam(%s) failed", value[1].data); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->user = pwd->pw_uid; |
| |
| if (cf->args->nelts == 2) { |
| return NGX_CONF_OK; |
| } |
| |
| grp = getgrnam(value[2].data); |
| if (grp == NULL) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, |
| "getgrnam(%s) failed", value[1].data); |
| return NGX_CONF_ERROR; |
| } |
| |
| ccf->group = grp->gr_gid; |
| |
| return NGX_CONF_OK; |
| } |
