#include "log.h"
#include "osl.h"
#include "error.h"
+#include "fd.h"
/**
* Wrapper for the write system call.
return p;
}
+/**
+ * A wrapper for truncate(2)
+ *
+ * \param path Name of the regular file to truncate
+ * \param size Number of bytes to \b shave \b off
+ *
+ * Truncate the regular file named by \a path by \a size bytes.
+ *
+ * \return Standard.
+ *
+ * \sa truncate(2)
+ */
+int truncate_file(const char *path, off_t size)
+{
+ int ret;
+ struct stat statbuf;
+
+ ret = osl_stat(path, &statbuf);
+ if (ret < 0)
+ return ret;
+ ret = -E_OSL_BAD_SIZE;
+ if (statbuf.st_size < size)
+ return ret;
+ if (truncate(path, statbuf.st_size - size) < 0)
+ return -ERRNO_TO_ERROR(errno);
+ return 1;
+}