Add devino, refactor openwrite(v)nclose

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/libstddjb/openwritenclose5.c b/src/libstddjb/openwritenclose5.c
new file mode 100644
index 0000000..eef625c
--- /dev/null
+++ b/src/libstddjb/openwritenclose5.c
@@ -0,0 +1,31 @@
+/* ISC license. */
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <skalibs/posixplz.h>
+#include <skalibs/devino.h>
+#include <skalibs/djbunix.h>
+
+#define SUFFIX ":skalibs-openwritenclose:XXXXXX"
+
+int openwritenclose5 (char const *fn, char const *s, size_t n, devino *devino, unsigned int options)
+{
+  int fd ;
+  size_t fnlen = strlen(fn) ;
+  char tmp[fnlen + sizeof(SUFFIX)] ;
+  memcpy(tmp, fn, fnlen) ;
+  memcpy(tmp + fnlen, SUFFIX, sizeof(SUFFIX)) ;
+  fd = mkstemp(tmp) ;
+  if (fd < 0) return 0 ;
+  if (!writenclose_unsafe5(fd, s, n, devino, options)) goto failclose ;
+  if (rename(tmp, fn) < 0) goto fail ;
+  return 1 ;
+
+ failclose:
+  fd_close(fd) ;
+ fail:
+  unlink_void(tmp) ;
+  return 0 ;
+}