From 9592bfd0dda7c575de07bce2c7a81b8432d845a4 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Wed, 28 Jul 2021 23:45:20 +0000
Subject:  Huge incompatible changes.

- Obsolete skalibs/environ.h and skalibs/getpeereid.h removed.
- rc4 and md5 removed.
- All *_t types renamed to avoid treading on POSIX namespace.
- subgetopt() renamed to lgetopt().
- signal functions reworked; skasigaction removed; sig_stack removed
- Various functions removed: skaoffsetof(), selfpipe_untrap()
- New posixplz function: munmap_void.

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 src/libunixonacid/dd_commit.c | 68 -------------------------------------------
 1 file changed, 68 deletions(-)
 delete mode 100644 src/libunixonacid/dd_commit.c

(limited to 'src/libunixonacid/dd_commit.c')

diff --git a/src/libunixonacid/dd_commit.c b/src/libunixonacid/dd_commit.c
deleted file mode 100644
index 1c940d2..0000000
--- a/src/libunixonacid/dd_commit.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/* ISC license. */
-
-#include <unistd.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <skalibs/stralloc.h>
-#include <skalibs/djbunix.h>
-#include <skalibs/random.h>
-#include <skalibs/unix-transactional.h>
-
-static char const *mybasename (char const *s, size_t len)
-{
-  size_t i = len ;
-  while (i--) if (s[i] == '/') return s + i + 1 ;
-  return s ;
-}
-
-int dd_commit (dirdescriptor_t *dd)
-{
-  dirdescriptor_t zero = DIRDESCRIPTOR_ZERO ;
-  size_t len = strlen(dd->lnkfn) ;
-  size_t oldbase = dd->new.len ;
-  size_t newlnkbase ;
-  char const *lnkbn = mybasename(dd->lnkfn, len) ;
-  if (!sadirname(&dd->new, dd->lnkfn, len)) return 0 ;
-  if (!stralloc_catb(&dd->new, "/", 1)) goto fail ;
-  if (sareadlink(&dd->new, dd->lnkfn) < 0)
-  {
-    size_t lnkbnbase = dd->new.len ;
-    if (errno != EINVAL) goto fail ;
-    if (!stralloc_cats(&dd->new, lnkbn)) goto fail ;
-    if (!random_sauniquename(&dd->new, 8)) goto fail ;
-    if (!stralloc_0(&dd->new)) goto fail ;
-    if (rename(dd->lnkfn, dd->new.s + oldbase) < 0) goto fail ;
-    /* /!\ race condition right here: there's no lnkfn in the fs */
-    if (symlink(dd->new.s + lnkbnbase, dd->lnkfn) < 0) /* now that's VERY BAD if it fails */
-    {
-      int e = errno ;
-      rename(dd->new.s + oldbase, dd->lnkfn) ; /* attempt to revert to initial situation */
-      errno = e ;
-      goto fail ; /* and hope for the best */
-    }
-  }
-  if (!stralloc_0(&dd->new)) goto fail ;
-  newlnkbase = dd->new.len ;
-  if (!stralloc_catb(&dd->new, dd->lnkfn, len)) goto fail ;
-  if (!random_sauniquename(&dd->new, 8)) goto fail ;
-  if (!stralloc_0(&dd->new)) goto fail ;
-  if (symlink(dd->new.s, dd->new.s + newlnkbase) < 0) goto fail ;
-  if (rename(dd->new.s + newlnkbase, dd->lnkfn) < 0)
-  {
-    int e = errno ;
-    unlink(dd->new.s + newlnkbase) ;
-    errno = e ;
-    goto fail ;
-  }
-  fd_close(dd->fd) ;
-  dd->new.len = newlnkbase ;
-  rm_rf_in_tmp(&dd->new, oldbase) ;
-  stralloc_free(&dd->new) ;
-  *dd = zero ;
-  return 1 ;
-
- fail:
-  dd->new.len = oldbase ;
-  return 0 ;
-}
-- 
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