NAME
          error_temp - identify soft syscall error codes

     SYNTAX
          #include <error.h>

          int error_temp(e);

          int e;

     DESCRIPTION
          error_temp returns 1 if syscall error code e is a soft
          error, 0 if it is a hard error.  Normally e is errno.

          A hard error is persistent:  file not found, read-only file
          system, symbolic link loop, etc.

          A soft error is usually transient:  out of memory, out of
          disk space, I/O error, disk quota exceeded, connection
          refused, host unreachable, etc.

     SEE ALSO
          error(3)