From 8effedb35bb873a1278776721a0d650c665efaa7 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Wed, 1 Oct 2025 01:02:29 +0000
Subject:  Add stores, edit init and sync

---
 src/libs6rc/deps-lib/s6rc          |  1 +
 src/libs6rc/s6rc_repo_makestores.c | 68 ++++++++++++++++++++++++++++++++++++++
 src/libs6rc/s6rc_repo_sync.c       | 18 +++++-----
 3 files changed, 78 insertions(+), 9 deletions(-)
 create mode 100644 src/libs6rc/s6rc_repo_makestores.c

(limited to 'src/libs6rc')

diff --git a/src/libs6rc/deps-lib/s6rc b/src/libs6rc/deps-lib/s6rc
index 87feaee..d847297 100644
--- a/src/libs6rc/deps-lib/s6rc
+++ b/src/libs6rc/deps-lib/s6rc
@@ -30,6 +30,7 @@ s6rc_repo_listsub.o
 s6rc_repo_lock.o
 s6rc_repo_makedefbundle.o
 s6rc_repo_makesetbundles.o
+s6rc_repo_makestores.o
 s6rc_repo_makesvlist.o
 s6rc_repo_makesvlist_byname.o
 s6rc_repo_moveservices.o
diff --git a/src/libs6rc/s6rc_repo_makestores.c b/src/libs6rc/s6rc_repo_makestores.c
new file mode 100644
index 0000000..5568ec5
--- /dev/null
+++ b/src/libs6rc/s6rc_repo_makestores.c
@@ -0,0 +1,68 @@
+/* ISC license. */
+
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <skalibs/uint16.h>
+#include <skalibs/posixplz.h>
+#include <skalibs/stat.h>
+#include <skalibs/strerr.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/unix-transactional.h>
+
+#include <s6-rc/repo.h>
+
+int s6rc_repo_makestores (char const *repo, char const *const *stores, uint16_t n)
+{
+  size_t repolen = strlen(repo) ;
+  mode_t m = umask(0) ;
+  char slink[repolen + 8] ;
+  char sdir[repolen + 21] ;
+  char sold[repolen + 16] ;
+
+  memcpy(slink, repo, repolen) ;
+  memcpy(slink + repolen, "/stores", 8) ;
+  memcpy(sdir, slink, repolen + 1) ;
+  memcpy(sdir + repolen + 1, ".stores:XXXXXX", 15) ;
+  memcpy(sold, slink, repolen + 1) ;
+
+  if (!mkdtemp(sdir))
+  {
+    umask(m) ;
+    strerr_warnfu2sys("mkdtemp ", sdir) ;
+    return 0 ;
+  }
+  umask(m) ;
+  sdir[repolen + 15] = '/' ;
+  sdir[repolen + 20] = 0 ;
+  for (uint16_t i = 0 ; i < n ; i++)
+  {
+    uint160_xfmt(sdir + repolen + 16, i, 4) ;
+    if (symlink(stores[i], sdir) == -1)
+    {
+      strerr_warnfu4sys("symlink ", stores[i], " to ", sdir) ;
+      sdir[repolen + 15] = 0 ;
+      goto err ;
+    }
+  }
+  sdir[repolen + 15] = 0 ;
+  if (chmod(sdir, 02755) == -1)
+  {
+    strerr_warnfu2sys("chmod ", sdir) ;
+    goto err ;
+  }
+  if (!atomic_symlink4(sdir + repolen + 1, slink, sold + repolen + 1, 15))
+  {
+    strerr_warnfu4sys("atomically symlink ", sdir + repolen + 1, " to ", slink) ;
+    goto err ;
+  }
+  rm_rf(sold) ;
+  return 1 ;
+
+ err:
+  rm_rf(sdir) ;
+  return 0 ;
+}
diff --git a/src/libs6rc/s6rc_repo_sync.c b/src/libs6rc/s6rc_repo_sync.c
index 8e5956b..df462ad 100644
--- a/src/libs6rc/s6rc_repo_sync.c
+++ b/src/libs6rc/s6rc_repo_sync.c
@@ -8,7 +8,7 @@
 #include <stdlib.h>
 #include <errno.h>
 
-#include <skalibs/uint32.h>
+#include <skalibs/uint16.h>
 #include <skalibs/direntry.h>
 #include <skalibs/posixplz.h>
 #include <skalibs/strerr.h>
@@ -31,13 +31,13 @@ static inline void cleanup (char const *ato, char const *bun)
 int s6rc_repo_sync (char const *repo, unsigned int verbosity, char const *fdhuser)
 {
   size_t repolen = strlen(repo) ;
-  char store[repolen + 17] ;
+  char store[repolen + 13] ;
   char ato[repolen + 26] ;
   char bun[repolen + 26] ;
 
   memcpy(store, repo, repolen) ;
   memcpy(store + repolen, "/stores/", 8) ;
-  store[repolen + 16] = 0 ;
+  store[repolen + 12] = 0 ;
 
 
  /* Fill new .atomics/ and .bundles/ with symlinks to real stores */
@@ -69,10 +69,10 @@ int s6rc_repo_sync (char const *repo, unsigned int verbosity, char const *fdhuse
     return 0 ;
   }
 
-  for (uint32_t istore = 0 ;; istore++)
+  for (uint16_t istore = 0 ;; istore++)
   {
     DIR *dir ;
-    uint320_xfmt(store + repolen + 8, istore, 8) ;
+    uint160_xfmt(store + repolen + 8, istore, 4) ;
     dir = opendir(store) ;
     if (!dir)
     {
@@ -92,11 +92,11 @@ int s6rc_repo_sync (char const *repo, unsigned int verbosity, char const *fdhuse
       {
         char const *x ;
         char dst[repolen + 28 + len] ;
-        char src[26 + len] ;
+        char src[22 + len] ;
         memcpy(src, "../../../stores/", 16) ;
-        memcpy(src + 16, store + repolen + 8, 8) ;
-        src[24] = '/' ;
-        memcpy(src + 25, d->d_name, len+1) ;
+        memcpy(src + 16, store + repolen + 8, 4) ;
+        src[20] = '/' ;
+        memcpy(src + 21, d->d_name, len+1) ;
         switch (s6rc_type_check(-1, src))
         {
           case 1 :
-- 
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