kopia lustrzana https://gitlab.com/sane-project/backends
128 wiersze
4.5 KiB
C
128 wiersze
4.5 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 1997 Jeffrey S. Freedman
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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/** @file sanei_config.h
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* Generic configuration support.
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*
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* Use the functions of this header file if you want to read and analyze
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* configuration files.
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*/
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#ifndef sanei_config_h
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#include <stdio.h>
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/** Search configuration file \a name along directory list and return file
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* pointer if such a file exists.
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*
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* The following directory list is used:
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* 1st: SANE_CONFIG_DIR environment variable.
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* 2nd: PATH_SANE_CONFIG_DIR set during configuration.
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* 3rd: Current directory.
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* @param name filename with extension but without path (such as "mustek.conf")
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*
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* @return file pointer, or NULL if not found
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*
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*/
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extern FILE *sanei_config_open (const char *name);
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/** Read a line from configuration file.
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*
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* Strips all unwanted chars. Use this instead of fgets() to remove
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* line ending chars on all known platforms.
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*
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* @param str points to the buffer for the line
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* @param n size of the buffer
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* @param stream file pointer
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*
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* @return \a str on success and NULL on error
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*/
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extern char *sanei_config_read (char *str, int n, FILE *stream);
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/** Remove all whitespace from the beginning of a string.
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*
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* @param str string
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*
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* @return string without leading whitespace
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*
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*/
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extern const char *sanei_config_skip_whitespace (const char *str);
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/** Scan a string constant from a line of text and return a malloced copy
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* of it.
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*
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* It's the responsibility of the caller to free the returned string constant
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* at an appropriate time. Whitespace in front of the string constant is
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* ignored. Whitespace can be included in the string constant by enclosing it
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* in double-quotes.
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*
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* @param str line of text to scan for a string constant
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* @param string_const copy of the string constant
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*
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* @return a pointer to the position in str where the scan stopped
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*/
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extern const char *sanei_config_get_string (const char *str,
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char **string_const);
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/** Expand device name patterns into a list of devices.
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*
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* Apart from a normal device name (such as /dev/sdb), this function currently
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* supports SCSI device specifications of the form:
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*
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* scsi VENDOR MODEL TYPE BUS CHANNEL ID LUN
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*
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* Where VENDOR is the desired vendor name. MODEL is the desired model name.
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* TYPE is the desired device type. All of these can be set to * to match
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* anything. To include whitespace in these strings, enclose them in
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* double-quotes ("). BUS, ID, and LUN are the desired SCSI bus, id, and
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* logical-unit numbers. These can be set to * or simply omitted to match
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* anything.
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*
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* @param name device name pattern
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* @param attach attach function
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*/
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extern void sanei_config_attach_matching_devices (const char *name,
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SANE_Status (*attach)
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(const char *dev));
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#endif /* sanei_config_h */
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