1 files changed, 33 insertions, 0 deletions
diff --git a/src/libs6rc/s6rc_nlto0.c b/src/libs6rc/s6rc_nlto0.c
new file mode 100644
index 0000000..6436cdb
--- /dev/null
+++ b/src/libs6rc/s6rc_nlto0.c
@@ -0,0 +1,33 @@
+/* ISC license. */
+
+#include <stdint.h>
+
+#include <skalibs/genalloc.h>
+
+#include <s6-rc/s6rc-utils.h>
+
+int s6rc_nlto0 (char *s, size_t start, size_t len, genalloc *indices)
+{
+  size_t origlen = genalloc_len(size_t, indices) ;
+  size_t pos = start ;
+  int wasnull = !indices->s ;
+  int inword = 0 ;
+
+  for (size_t i = start ; i < len ; i++)
+  {
+    if (s[i] == '\n')
+    {
+      s[i] = 0 ;
+      if (!genalloc_append(size_t, indices, &pos)) goto err ;
+      inword = 0 ;
+    }
+    else if (!inword) { pos = i ; inword = 1 ; }
+  }
+  if (inword) goto err ;
+  return 1 ;
+
+ err:
+  if (wasnull) genalloc_free(size_t, indices) ;
+  else genalloc_setlen(size_t, indices, origlen) ;
+  return 0 ;
+}