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Diffstat (limited to 'src/libstddjb/openwritevnclose_unsafe.c')
-rw-r--r--src/libstddjb/openwritevnclose_unsafe.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/libstddjb/openwritevnclose_unsafe.c b/src/libstddjb/openwritevnclose_unsafe.c
new file mode 100644
index 0000000..feb2ae5
--- /dev/null
+++ b/src/libstddjb/openwritevnclose_unsafe.c
@@ -0,0 +1,33 @@
+/* ISC license. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <skalibs/uint64.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/siovec.h>
+#include <skalibs/djbunix.h>
+
+int openwritevnclose_unsafe_internal (char const *fn, siovec_t const *v, unsigned int vlen, uint64 *dev, uint64 *ino, int dosync)
+{
+ struct stat st ;
+ int fd = open_trunc(fn) ;
+ if (fd < 0) return 0 ;
+ if (allwritev(fd, v, vlen) < siovec_len(v, vlen)) goto fail ;
+ if ((dev || ino) && (fstat(fd, &st) < 0)) goto fail ;
+ if (dosync && (fd_sync(fd) < 0) && (errno != EINVAL)) goto fail ;
+ fd_close(fd) ;
+ if (dev) *dev = (uint64)st.st_dev ;
+ if (ino) *ino = (uint64)st.st_ino ;
+ return 1 ;
+
+ fail:
+ {
+ register int e = errno ;
+ fd_close(fd) ;
+ unlink(fn) ;
+ errno = e ;
+ }
+ return 0 ;
+}