#include <ccan/talloc/talloc.h>
#include <ccan/grab_file/grab_file.h>
+#include <ccan/noerr/noerr.h>
+#include <ccan/read_write_all/read_write_all.h>
#include <sys/stat.h>
#include <sys/types.h>
+#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
return talloc_asprintf(ctx, "%s/%u%s", tmpdir, count++, extension);
}
+
+bool move_file(const char *oldname, const char *newname)
+{
+ char *contents;
+ size_t size;
+ int fd;
+ bool ret;
+
+ /* Simple case: rename works. */
+ if (rename(oldname, newname) == 0)
+ return true;
+
+ /* Try copy and delete: not atomic! */
+ contents = grab_file(NULL, oldname, &size);
+ if (!contents)
+ return false;
+
+ fd = open(newname, O_WRONLY|O_CREAT|O_TRUNC, 0666);
+ if (fd < 0) {
+ ret = false;
+ goto free;
+ }
+
+ ret = write_all(fd, contents, size);
+ if (close(fd) != 0)
+ ret = false;
+
+ if (ret)
+ unlink(oldname);
+ else
+ unlink(newname);
+
+free:
+ talloc_free(contents);
+ return ret;
+}