From: Maxim Dounin <mdounin@mdounin.ru>
Date: Fri, 19 Jun 2026 19:54:19 +0000 (+0300)
Subject: Script: simplified copy capture codes.
X-Git-Tag: release-1.31.3~7
X-Git-Url: http://git.kaiwu.me/http/doc/$%7BGITURL%7D/static/gitweb.js?a=commitdiff_plain;h=28219209e0b4f9e155fd8bd91ab81b8ac30628f2;p=nginx.git

Script: simplified copy capture codes.

Signed-off-by: Roman Arutyunyan <arut@nginx.com>
Origin: <https://freenginx.org/hg/nginx/rev/0fd5e6155817>
---

diff --git a/src/http/ngx_http_script.c b/src/http/ngx_http_script.c
index ddae0c1cb..8a7ba57e2 100644
--- a/src/http/ngx_http_script.c
+++ b/src/http/ngx_http_script.c
@@ -1346,6 +1346,7 @@ ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
 {
     int                                  *cap;
     u_char                               *p;
+    size_t                                len;
     ngx_uint_t                            n;
     ngx_http_request_t                   *r;
     ngx_http_script_copy_capture_code_t  *code;
@@ -1361,17 +1362,17 @@ ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
     if (n < r->ncaptures) {
 
         cap = r->captures;
+        len = cap[n + 1] - cap[n];
 
         if ((e->is_args || e->quote)
             && (e->request->quoted_uri || e->request->plus_in_uri))
         {
-            p = r->captures_data;
+            p = r->captures_data + cap[n];
+
+            return len + 2 * ngx_escape_uri(NULL, p, len, NGX_ESCAPE_ARGS);
 
-            return cap[n + 1] - cap[n]
-                   + 2 * ngx_escape_uri(NULL, &p[cap[n]], cap[n + 1] - cap[n],
-                                        NGX_ESCAPE_ARGS);
         } else {
-            return cap[n + 1] - cap[n];
+            return len;
         }
     }
 
@@ -1384,6 +1385,7 @@ ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
 {
     int                                  *cap;
     u_char                               *p, *pos;
+    size_t                                len;
     ngx_uint_t                            n;
     ngx_http_request_t                   *r;
     ngx_http_script_copy_capture_code_t  *code;
@@ -1401,16 +1403,16 @@ ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
     if (n < r->ncaptures) {
 
         cap = r->captures;
-        p = r->captures_data;
+        len = cap[n + 1] - cap[n];
+        p = r->captures_data + cap[n];
 
         if ((e->is_args || e->quote)
             && (e->request->quoted_uri || e->request->plus_in_uri))
         {
-            e->pos = (u_char *) ngx_escape_uri(pos, &p[cap[n]],
-                                               cap[n + 1] - cap[n],
-                                               NGX_ESCAPE_ARGS);
+            e->pos = (u_char *) ngx_escape_uri(pos, p, len, NGX_ESCAPE_ARGS);
+
         } else {
-            e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]);
+            e->pos = ngx_copy(pos, p, len);
         }
     }
 
diff --git a/src/stream/ngx_stream_script.c b/src/stream/ngx_stream_script.c
index 175e44194..d1f256caf 100644
--- a/src/stream/ngx_stream_script.c
+++ b/src/stream/ngx_stream_script.c
@@ -896,6 +896,7 @@ size_t
 ngx_stream_script_copy_capture_len_code(ngx_stream_script_engine_t *e)
 {
     int                                    *cap;
+    size_t                                  len;
     ngx_uint_t                              n;
     ngx_stream_session_t                   *s;
     ngx_stream_script_copy_capture_code_t  *code;
@@ -910,7 +911,8 @@ ngx_stream_script_copy_capture_len_code(ngx_stream_script_engine_t *e)
 
     if (n < s->ncaptures) {
         cap = s->captures;
-        return cap[n + 1] - cap[n];
+        len = cap[n + 1] - cap[n];
+        return len;
     }
 
     return 0;
@@ -922,6 +924,7 @@ ngx_stream_script_copy_capture_code(ngx_stream_script_engine_t *e)
 {
     int                                    *cap;
     u_char                                 *p, *pos;
+    size_t                                  len;
     ngx_uint_t                              n;
     ngx_stream_session_t                   *s;
     ngx_stream_script_copy_capture_code_t  *code;
@@ -938,8 +941,9 @@ ngx_stream_script_copy_capture_code(ngx_stream_script_engine_t *e)
 
     if (n < s->ncaptures) {
         cap = s->captures;
-        p = s->captures_data;
-        e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]);
+        len = cap[n + 1] - cap[n];
+        p = s->captures_data + cap[n];
+        e->pos = ngx_copy(pos, p, len);
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_STREAM, e->session->connection->log, 0,