1 files changed, 19 insertions, 0 deletions
diff --git a/src/repo/s6rc_repo_listsub.c b/src/repo/s6rc_repo_listsub.c
new file mode 100644
index 0000000..1ee23bf
--- /dev/null
+++ b/src/repo/s6rc_repo_listsub.c
@@ -0,0 +1,19 @@
+/* ISC license. */
+
+#include <string.h>
+
+#include <s6-rc/repo.h>
+
+int s6rc_repo_listsub (char const *repo, char const *set, char const *sub, stralloc *sa, genalloc *ga)
+{
+  size_t repolen = strlen(repo) ;
+  size_t setlen = strlen(set) ;
+  size_t sublen = strlen(sub) ;
+  char fn[repolen + setlen + 10 + sublen] ;
+  memcpy(fn, repo, repolen) ;
+  memcpy(fn + repolen, "/sources/", 9) ;
+  memcpy(fn + repolen + 9, set, setlen) ;
+  memcpy(fn + repolen + 9 + setlen, sub, sublen + 1) ;
+
+  return s6rc_repo_ls(fn, sa, ga) ;
+}