1 files changed, 27 insertions, 0 deletions
diff --git a/src/libstddjb/netstring_appendv.c b/src/libstddjb/netstring_appendv.c
new file mode 100644
index 0000000..1fc1406
--- /dev/null
+++ b/src/libstddjb/netstring_appendv.c
@@ -0,0 +1,27 @@
+/* ISC license. */
+
+#include <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/netstring.h>
+
+int netstring_appendv (stralloc *sa, siovec_t const *v, unsigned int n)
+{
+  char fmt[UINT_FMT] ;
+  unsigned int len = 0, pos ;
+  register unsigned int i = 0 ;
+  for (; i < n ; i++) len += v[i].len ;
+  pos = uint_fmt(fmt, len) ;
+  if (!stralloc_readyplus(sa, len + pos + 2)) return 0 ;
+  fmt[pos] = ':' ;
+  byte_copy(sa->s + sa->len, pos+1, fmt) ;
+  sa->len += pos+1 ;
+  for (i = 0 ; i < n ; i++)
+  {
+    byte_copy(sa->s + sa->len, v[i].len, v[i].s) ;
+    sa->len += v[i].len ;
+  }
+  sa->s[sa->len++] = ',' ;
+  return 1 ;
+}