Make parameters const pointer

lib/includes/nghttp2/nghttp2.h

@@ -4628,9 +4628,9 @@ nghttp2_hd_deflate_hd(nghttp2_hd_deflater *deflater, uint8_t *buf,
  *     The provided |buflen| size is too small to hold the output.
  */
 NGHTTP2_EXTERN ssize_t
-nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater, uint8_t **bufsin,
-                      size_t inlen, size_t buflen, size_t *buflens,
-                      const nghttp2_nv *nva, size_t nvlen);
+nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater, uint8_t *const *bufsin,
+                          size_t inlen, size_t buflen, size_t *const buflens,
+                          const nghttp2_nv *nva, size_t nvlen);
 
 /**
  * @function

lib/nghttp2_buf.c

@@ -223,8 +223,8 @@ int nghttp2_bufs_wrap_init(nghttp2_bufs *bufs, uint8_t *begin, size_t len,
   return 0;
 }
 
-int nghttp2_bufs_wrap_init2(nghttp2_bufs *bufs, uint8_t **bufs_in, size_t in_len,
-                          size_t buf_len, nghttp2_mem *mem) {
+int nghttp2_bufs_wrap_init2(nghttp2_bufs *bufs, uint8_t *const *bufs_in,
+                            size_t in_len, size_t buf_len, nghttp2_mem *mem) {
   size_t i = 0;
   nghttp2_buf_chain *cur_chain;
   nghttp2_buf_chain *pre_chain = NULL;
@@ -305,7 +305,7 @@ size_t nghttp2_bufs_len(nghttp2_bufs *bufs) {
   return len;
 }
 
-size_t nghttp2_bufs_len_vec(nghttp2_bufs *bufs, size_t *buflens) {
+size_t nghttp2_bufs_len_vec(nghttp2_bufs *bufs, size_t *const buflens) {
   nghttp2_buf_chain *ci;
   size_t len, total_len = 0;
   int i = 0;

lib/nghttp2_buf.h

@@ -223,8 +223,8 @@ int nghttp2_bufs_wrap_init(nghttp2_bufs *bufs, uint8_t *begin, size_t len,
  * NGHTTP2_ERR_NOMEM
  *     Out of memory.
  */
-int nghttp2_bufs_wrap_init2(nghttp2_bufs *bufs, uint8_t **bufs_in, size_t in_len,
-                          size_t buf_len, nghttp2_mem *mem);
+int nghttp2_bufs_wrap_init2(nghttp2_bufs *bufs, uint8_t *const *bufs_in,
+                            size_t in_len, size_t buf_len, nghttp2_mem *mem);
 
 /*
  * Frees any related resource to the |bufs|.  This function does not
@@ -404,6 +404,6 @@ size_t nghttp2_bufs_len(nghttp2_bufs *bufs);
 /*
  * Returns the total buffer length of |bufs|, and each buffer length in |buflens|.
  */
-size_t nghttp2_bufs_len_vec(nghttp2_bufs *bufs, size_t *buflens);
+size_t nghttp2_bufs_len_vec(nghttp2_bufs *bufs, size_t *const buflens);
 
 #endif /* NGHTTP2_BUF_H */

lib/nghttp2_hd.c

@@ -1503,9 +1503,10 @@ ssize_t nghttp2_hd_deflate_hd(nghttp2_hd_deflater *deflater, uint8_t *buf,
   return (ssize_t)buflen;
 }
 
-ssize_t nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater, uint8_t **bufsin,
-                              size_t inlen, size_t buflen, size_t *buflens,
-                              const nghttp2_nv *nv, size_t nvlen) {
+ssize_t nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater,
+                                  uint8_t *const *bufsin, size_t inlen,
+                                  size_t buflen, size_t *const buflens,
+                                  const nghttp2_nv *nv, size_t nvlen) {
   nghttp2_bufs bufs;
   int rv;
   nghttp2_mem *mem;