|connect_timeout = nsecs|
|Timeout (in seconds) for the initial connection to the saned server. This will prevent the backend from blocking for several minutes trying to connect to an unresponsive saned host (network outage, host down, ...). The environment variable SANE_NET_TIMEOUT can also be used to specify the timeout at runtime.|
Empty lines and lines starting with a hash mark (#) are
ignored. Note that IPv6 addresses in this file do not need to be enclosed
in square brackets. A sample configuration file is shown below:
# this is a comment
The above list of hosts can be extended at run-time using environment
SANE_NET_HOSTS. This environment variable is a colon-separated list of hostnames or IP
addresses that should be contacted in addition to the hosts mentioned in
the configuration file. For example, a user could set the environment
variable to the string:
|To request that hosts new.scanner.com , [::1] , 192.168.0.2 and scanner.univ.edu are contacted in addition to the hosts listed above.|
For this backend to function properly, it is also necessary to define the
sane-port service in
sane service should be defined using a line of the following form:
|sane-port 6566/tcp # SANE network scanner daemon|
/usr/local/etc/sane.d/net.conf The backend configuration file (see also description of SANE_CONFIG_DIR below). /usr/local/lib/sane/libsane-net.a The static library implementing this backend. /usr/local/lib/sane/libsane-net.so The shared library implementing this backend (present on systems that support dynamic loading).
SANE_CONFIG_DIR This environment variable specifies the list of directories that may contain the configuration file. Under UNIX, the directories are separated by a colon (:), under OS/2, they are separated by a semi-colon (;). If this variable is not set, the configuration file is searched in two default directories: first, the current working directory (".") and then in /usr/local/etc/sane.d. If the value of the environment variable ends with the directory separator character, then the default directories are searched after the explicitly specified directories. For example, setting SANE_CONFIG_DIR to "/tmp/config:" would result in directories "tmp/config", ".", and "/usr/local/etc/sane.d" being searched (in this order). SANE_NET_HOSTS A colon-separated list of host names or IP addresses to be contacted by this backend. SANE_NET_TIMEOUT Number of seconds to wait for a response from the saned server for the initial connection request. SANE_DEBUG_NET If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. E.g., a value of 128 requests all debug output to be printed. Smaller levels reduce verbosity.
If saned has timed out, the net backend may loop with authorization requests.
sane(7), saned(8), sane-dll(5), scanimage(1)
David Mosberger and Andreas Beck
|SANE-NET (5)||14 Jul 2008|