use ngx_min() and ngx_max()

2 files changed, 4 insertions, 12 deletions

diff --git a/src/core/ngx_output_chain.c b/src/core/ngx_output_chain.c
index 3ff25ff76..f51d69000 100644
--- a/src/core/ngx_output_chain.c
+++ b/src/core/ngx_output_chain.c
@@ -465,10 +465,7 @@ ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx)
     dst = ctx->buf;
 
     size = ngx_buf_size(src);
-
-    if (size > dst->end - dst->pos) {
-        size = dst->end - dst->pos;
-    }
+    size = ngx_min(size, dst->end - dst->pos);
 
     sendfile = ctx->sendfile & !ctx->directio;
 
diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
index f513753a1..95ac9cbff 100644
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -229,9 +229,7 @@ ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args)
             case 'V':
                 v = va_arg(args, ngx_str_t *);
 
-                len = v->len;
-                len = (buf + len < last) ? len : (size_t) (last - buf);
-
+                len = ngx_min(((size_t) (last - buf)), v->len);
                 buf = ngx_cpymem(buf, v->data, len);
                 fmt++;
 
@@ -240,9 +238,7 @@ ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args)
             case 'v':
                 vv = va_arg(args, ngx_variable_value_t *);
 
-                len = vv->len;
-                len = (buf + len < last) ? len : (size_t) (last - buf);
-
+                len = ngx_min(((size_t) (last - buf)), vv->len);
                 buf = ngx_cpymem(buf, vv->data, len);
                 fmt++;
 
@@ -257,8 +253,7 @@ ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args)
                     }
 
                 } else {
-                    len = (buf + slen < last) ? slen : (size_t) (last - buf);
-
+                    len = ngx_min(((size_t) (last - buf)), slen);
                     buf = ngx_cpymem(buf, p, len);
                 }