[PATCH] The directives such as user, rlimit_core should also be effective on master process

[Kunal Pariani]

# HG changeset patch
# User Kunal Pariani <kpari...@zimbra.com>
# Date 1407194790 25200
#      Mon Aug 04 16:26:30 2014 -0700
# Node ID f25ab24517bb5e45b1b7fa1a1502b907f2cff213
# Parent  f8764e20fcd7f87d98fe97f82b2a8d0a77ed9097
The directives such as user, rlimit_core should also be effective on master 
process

diff -r f8764e20fcd7 -r f25ab24517bb src/os/unix/ngx_process_cycle.c
--- a/src/os/unix/ngx_process_cycle.c   Fri Aug 01 20:39:22 2014 -0700
+++ b/src/os/unix/ngx_process_cycle.c   Mon Aug 04 16:26:30 2014 -0700
@@ -93,6 +93,7 @@
    ngx_msec_t         delay;
    ngx_listening_t   *ls;
    ngx_core_conf_t   *ccf;
+    struct rlimit      rlmt;

    sigemptyset(&set);
    sigaddset(&set, SIGCHLD);
@@ -139,6 +140,64 @@

    ngx_start_worker_processes(cycle, ccf->worker_processes,
                               NGX_PROCESS_RESPAWN);
+
+    if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
+       rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
+       rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
+
+       if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
+               ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+                               "setrlimit(RLIMIT_NOFILE, %i) failed",
+                               ccf->rlimit_nofile);
+        }
+    }
+
+    if (ccf->rlimit_core != NGX_CONF_UNSET) {
+       rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
+       rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
+
+       if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
+               ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+                               "setrlimit(RLIMIT_CORE, %O) failed",
+                               ccf->rlimit_core);
+        }
+    }
+
+#ifdef RLIMIT_SIGPENDING
+    if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
+       rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
+       rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
+
+       if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
+               ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+                               "setrlimit(RLIMIT_SIGPENDING, %i) failed",
+                               ccf->rlimit_sigpending);
+        }
+    }
+#endif
+
+    if (geteuid() == 0) {
+       if (setgid(ccf->group) == -1) {
+               ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+                               "setgid(%d) failed", ccf->group);
+            /* fatal */
+               exit(2);
+        }
+
+        if (initgroups(ccf->username, ccf->group) == -1) {
+               ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+                               "initgroups(%s, %d) failed",
+                               ccf->username, ccf->group);
+        }
+
+        if (setuid(ccf->user) == -1) {
+               ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+                               "setuid(%d) failed", ccf->user);
+            /* fatal */
+               exit(2);
+        }
+    }
+
    ngx_start_cache_manager_processes(cycle, 0);

    ngx_new_binary = 0;

Thanks
-Kunal
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