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authorDarren Tucker <dtucker@dtucker.net>2019-01-18 12:11:42 +1300
committerDarren Tucker <dtucker@dtucker.net>2019-01-18 10:16:11 +1100
commit091093d25802b87d3b2b09f2c88d9f33e1ae5562 (patch)
tree16a433e3317c60c7a245b70818726d0a85203b19 /openbsd-compat/bsd-misc.c
parent609644027dde1f82213699cb6599e584c7efcb75 (diff)
Add a minimal implementation of utimensat().
Some systems (eg older OS X) do not have utimensat, so provide minimal implementation in compat layer. Fixes build on at least El Capitan.
Diffstat (limited to 'openbsd-compat/bsd-misc.c')
-rw-r--r--openbsd-compat/bsd-misc.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/openbsd-compat/bsd-misc.c b/openbsd-compat/bsd-misc.c
index 5d7540a7..4bae9654 100644
--- a/openbsd-compat/bsd-misc.c
+++ b/openbsd-compat/bsd-misc.c
@@ -25,6 +25,7 @@
# include <sys/time.h>
#endif
+#include <fcntl.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
@@ -117,6 +118,42 @@ int utimes(char *filename, struct timeval *tvp)
}
#endif
+#ifndef HAVE_UTIMENSAT
+/*
+ * A limited implementation of utimensat() that only implements the
+ * functionality used by OpenSSH, currently only AT_FDCWD and
+ * AT_SYMLINK_NOFOLLOW.
+ */
+int
+utimensat(int fd, const char *path, const struct timespec times[2],
+ int flag)
+{
+ struct timeval tv[2];
+ int ret, oflags = O_WRONLY;
+
+ tv[0].tv_sec = times[0].tv_sec;
+ tv[0].tv_usec = times[0].tv_nsec / 1000;
+ tv[1].tv_sec = times[1].tv_sec;
+ tv[1].tv_usec = times[1].tv_nsec / 1000;
+
+ if (fd != AT_FDCWD) {
+ errno = ENOSYS;
+ return -1;
+ }
+# ifndef HAVE_FUTIMES
+ return utimes(path, tv);
+# else
+ if (flag & AT_SYMLINK_NOFOLLOW)
+ oflags |= O_NOFOLLOW;
+ if ((fd = open(path, oflags)) == -1)
+ return -1;
+ ret = futimes(fd, tv);
+ close(fd);
+ return ret;
+# endif
+}
+#endif
+
#ifndef HAVE_TRUNCATE
int truncate(const char *path, off_t length)
{