1 files changed, 25 insertions, 0 deletions
diff --git a/src/librandom/random_sauniquename.c b/src/librandom/random_sauniquename.c
new file mode 100644
index 0000000..7c902ef
--- /dev/null
+++ b/src/librandom/random_sauniquename.c
@@ -0,0 +1,25 @@
+/* ISC license. */
+
+/* MT-unsafe */
+
+#include <skalibs/stralloc.h>
+#include <skalibs/skamisc.h>
+#include <skalibs/random.h>
+
+int random_sauniquename (stralloc *sa, unsigned int n)
+{
+  unsigned int base = sa->len ;
+  int wasnull = !sa->s ;
+  register int r ;
+  if (sauniquename(sa) == -1) return -1 ;
+  if (!stralloc_readyplus(sa, n+1)) goto err ;
+  stralloc_catb(sa, ":", 1) ;
+  r = random_name(sa->s + sa->len, n) ;
+  if (r == -1) goto err ;
+  sa->len += r ;
+  return r ;
+
+err:
+  if (wasnull) stralloc_free(sa) ; else sa->len = base ;
+  return -1 ;
+}