Core: "-e" command line option.

When installing or running from a non-root user it is sometimes required to
override default, compiled in error log path. There was no way to do this
without rebuilding the binary (ticket #147).

This patch introduced "-e" command line option which allows one to override
compiled in error log path.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index d7479fa41..6978c3e43 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -96,6 +96,15 @@ ngx_init_cycle(ngx_cycle_t *old_cycle)
         return NULL;
     }
 
+    cycle->error_log.len = old_cycle->error_log.len;
+    cycle->error_log.data = ngx_pnalloc(pool, old_cycle->error_log.len + 1);
+    if (cycle->error_log.data == NULL) {
+        ngx_destroy_pool(pool);
+        return NULL;
+    }
+    ngx_cpystrn(cycle->error_log.data, old_cycle->error_log.data,
+                old_cycle->error_log.len + 1);
+
     cycle->conf_file.len = old_cycle->conf_file.len;
     cycle->conf_file.data = ngx_pnalloc(pool, old_cycle->conf_file.len + 1);
     if (cycle->conf_file.data == NULL) {