From 1a70d9f9ef81ac1b5e843ac71f3538f7845e03ae Mon Sep 17 00:00:00 2001
From: Dirk Engling <erdgeist@erdgeist.org>
Date: Sat, 13 Apr 2024 00:47:29 +0200
Subject: First shot on chunked transfers

---
 ot_iovec.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'ot_iovec.c')

diff --git a/ot_iovec.c b/ot_iovec.c
index fec3912..f9567a9 100644
--- a/ot_iovec.c
+++ b/ot_iovec.c
@@ -35,6 +35,26 @@ void *iovec_increase( int *iovec_entries, struct iovec **iovector, size_t new_al
   return new_data;
 }
 
+void *iovec_append( int *iovec_entries, struct iovec **iovector, struct iovec *append_iovector) {
+  int new_entries = *iovec_entries + 1;
+  struct iovec *new_vec = realloc( *iovector, new_entries * sizeof( struct iovec ) );
+  if( !new_vec )
+    return NULL;
+
+  /* Take over data from appended iovec */
+  new_vec[*iovec_entries].iov_base = append_iovector->iov_base;
+  new_vec[*iovec_entries].iov_len  = append_iovector->iov_len;
+
+  append_iovector->iov_base = NULL;
+  append_iovector->iov_len = 0;
+
+  *iovector = new_vec;
+  *iovec_entries = new_entries;
+
+  return new_vec;
+}
+
+
 void iovec_free( int *iovec_entries, struct iovec **iovector ) {
   int i;
   for( i=0; i<*iovec_entries; ++i )
@@ -64,7 +84,6 @@ void *iovec_fix_increase_or_free( int *iovec_entries, struct iovec **iovector, v
   return new_data;
 }
 
-
 size_t iovec_length( const int *iovec_entries, const struct iovec **iovector ) {
   size_t length = 0;
   int i;
-- 
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