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Diffstat (limited to 'src/libstddjb/openwritevnclose_suffix.c')
-rw-r--r--src/libstddjb/openwritevnclose_suffix.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/libstddjb/openwritevnclose_suffix.c b/src/libstddjb/openwritevnclose_suffix.c
new file mode 100644
index 0000000..0440960
--- /dev/null
+++ b/src/libstddjb/openwritevnclose_suffix.c
@@ -0,0 +1,30 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <skalibs/uint64.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+#include <skalibs/djbunix.h>
+
+int openwritevnclose_suffix_internal (char const *fn, siovec_t const *v, unsigned int n, uint64 *dev, uint64 *ino, int dosync, char const *suffix)
+{
+ uint64 tmpdev, tmpino ;
+ unsigned int len = str_len(fn) ;
+ unsigned int suffixlen = str_len(suffix) ;
+ char tmp[len + suffixlen + 1] ;
+ byte_copy(tmp, len, fn) ;
+ byte_copy(tmp + len, suffixlen + 1, suffix) ;
+ if (!openwritevnclose_unsafe_internal(tmp, v, n, dev ? &tmpdev : 0, ino ? &tmpino : 0, dosync)) return 0 ;
+ if (rename(tmp, fn) < 0)
+ {
+ register int e = errno ;
+ unlink(tmp) ;
+ errno = e ;
+ return 0 ;
+ }
+ if (dev) *dev = tmpdev ;
+ if (ino) *ino = tmpino ;
+ return 1 ;
+}