kopia lustrzana https://gitlab.com/sane-project/backends
Added support for scanning whole directories for SCSI and USB device files.
Moved SCSI and USB detection routines to their own functions. Renamed functions related to SCSI for clarity. Henning Meier-Geinitz <henning@meier-geinitz.de>DEVEL_2_0_BRANCH-1
Henning Geinitz
rodzic
00bbea8694
commit
3ee0145e35
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@ -1,6 +1,6 @@
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/* sane-find-scanner.c
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Copyright (C) 1997-2001 Oliver Rauch, Henning Meier-Geinitz, and others.
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Copyright (C) 1997-2002 Oliver Rauch, Henning Meier-Geinitz, and others.
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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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@ -19,24 +19,31 @@
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*/
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#include "../include/sane/config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <errno.h>
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#include "../include/sane/config.h"
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#include "../include/sane/sanei.h"
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#include "../include/sane/sanei_scsi.h"
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#include "../include/sane/sanei_usb.h"
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#define BACKEND_NAME findscanner
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#include "../include/sane/sanei_debug.h"
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#ifndef PATH_MAX
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# define PATH_MAX 1024
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#endif
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static const char *prog_name;
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static int verbose;
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static SANE_Bool unknown_found = SANE_FALSE;
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typedef struct
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{
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unsigned char *cmd;
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@ -48,12 +55,12 @@ scsiblk;
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#define set_inquiry_return_size(icb,val) icb[0x04]=val
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#define IN_periph_devtype_cpu 0x03
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#define IN_periph_devtype_scanner 0x06
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#define get_inquiry_vendor(in, buf) strncpy(buf, in + 0x08, 0x08)
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#define get_inquiry_product(in, buf) strncpy(buf, in + 0x10, 0x010)
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#define get_inquiry_version(in, buf) strncpy(buf, in + 0x20, 0x04)
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#define get_inquiry_periph_devtype(in) (in[0] & 0x1f)
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#define get_inquiry_additional_length(in) in[0x04]
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#define set_inquiry_length(out,n) out[0x04]=n-5
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#define get_scsi_inquiry_vendor(in, buf) strncpy(buf, in + 0x08, 0x08)
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#define get_scsi_inquiry_product(in, buf) strncpy(buf, in + 0x10, 0x010)
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#define get_scsi_inquiry_version(in, buf) strncpy(buf, in + 0x20, 0x04)
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#define get_scsi_inquiry_periph_devtype(in) (in[0] & 0x1f)
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#define get_scsi_inquiry_additional_length(in) in[0x04]
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#define set_scsi_inquiry_length(out,n) out[0x04]=n-5
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static unsigned char inquiryC[] = {
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INQUIRY, 0x00, 0x00, 0x00, 0xff, 0x00
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@ -62,7 +69,6 @@ static scsiblk inquiry = {
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inquiryC, sizeof (inquiryC)
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};
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static void
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usage (char *msg)
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{
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@ -168,22 +174,22 @@ hexdump (const char *comment, unsigned char *buf, const int length)
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}
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static SANE_Status
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scanner_do_inquiry (unsigned char *buffer, int sfd)
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scanner_do_scsi_inquiry (unsigned char *buffer, int sfd)
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{
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size_t size;
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SANE_Status status;
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DBG (5, "do_inquiry\n");
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memset (buffer, '\0', 256); /* clear buffer */
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size = 5; /* first get only 5 bytes to get size of inquiry_return_block */
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size = 5; /* first get only 5 bytes to get size of
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inquiry_return_block */
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set_inquiry_return_size (inquiry.cmd, size);
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status = sanei_scsi_cmd (sfd, inquiry.cmd, inquiry.size, buffer, &size);
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if (status != SANE_STATUS_GOOD)
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return (status);
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size = get_inquiry_additional_length (buffer) + 5;
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size = get_scsi_inquiry_additional_length (buffer) + 5;
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/* then get inquiry with actual size */
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set_inquiry_return_size (inquiry.cmd, size);
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@ -193,7 +199,8 @@ scanner_do_inquiry (unsigned char *buffer, int sfd)
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}
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static void
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scanner_identify_scanner (unsigned char *buffer, int sfd, char *devicename)
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scanner_identify_scsi_scanner (unsigned char *buffer, int sfd,
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char *devicename)
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{
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unsigned char vendor[9];
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unsigned char product[17];
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@ -206,7 +213,7 @@ scanner_identify_scanner (unsigned char *buffer, int sfd, char *devicename)
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"CD-drive", "scanner", "optical-drive", "jukebox",
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"communicator"
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};
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status = scanner_do_inquiry (buffer, sfd);
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status = scanner_do_scsi_inquiry (buffer, sfd);
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if (status != SANE_STATUS_GOOD)
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{
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if (verbose)
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@ -217,17 +224,17 @@ scanner_identify_scanner (unsigned char *buffer, int sfd, char *devicename)
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if (verbose)
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hexdump ("Inquiry for device:", buffer,
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get_inquiry_additional_length (buffer) + 5);
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get_scsi_inquiry_additional_length (buffer) + 5);
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devtype = get_inquiry_periph_devtype (buffer);
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devtype = get_scsi_inquiry_periph_devtype (buffer);
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if (!verbose && devtype != IN_periph_devtype_scanner
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/* old HP scanners use the CPU id ... */
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&& devtype != IN_periph_devtype_cpu)
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return; /* no, continue searching */
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get_inquiry_vendor ((char *) buffer, (char *) vendor);
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get_inquiry_product ((char *) buffer, (char *) product);
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get_inquiry_version ((char *) buffer, (char *) version);
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get_scsi_inquiry_vendor ((char *) buffer, (char *) vendor);
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get_scsi_inquiry_product ((char *) buffer, (char *) product);
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get_scsi_inquiry_version ((char *) buffer, (char *) version);
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pp = &vendor[7];
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vendor[8] = '\0';
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@ -250,13 +257,136 @@ scanner_identify_scanner (unsigned char *buffer, int sfd, char *devicename)
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return;
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}
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static void
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check_scsi_file (char * file_name)
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{
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int result;
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int sfd;
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unsigned char buffer[16384];
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if (verbose)
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printf ("%s: checking %s...", prog_name, file_name);
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result = sanei_scsi_open (file_name, &sfd, NULL, NULL);
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if (verbose)
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{
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if (result != 0)
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printf (" failed to open (%s)\n", sane_strstatus (result));
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else
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printf (" open ok\n");
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}
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if (result == SANE_STATUS_GOOD)
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{
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scanner_identify_scsi_scanner (buffer, sfd, file_name);
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sanei_scsi_close (sfd);
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}
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return;
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}
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static void
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check_usb_file (char * file_name)
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{
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SANE_Status result;
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SANE_Word vendor, product;
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SANE_Int fd;
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if (verbose)
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printf ("%s: checking %s...", prog_name, file_name);
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result = sanei_usb_open (file_name, &fd);
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if (result != SANE_STATUS_GOOD)
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{
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if (verbose)
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printf (" failed to open (%s)\n", sane_strstatus (result));
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}
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else
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{
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result = sanei_usb_get_vendor_product (fd, &vendor, &product);
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if (result == SANE_STATUS_GOOD)
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{
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if (verbose)
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printf (" open ok, vendor and product ids were identified\n");
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printf ("%s: found USB scanner (vendor = 0x%04x, "
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"product = 0x%04x) at device %s\n", prog_name, vendor,
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product, file_name);
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}
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else
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{
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if (verbose)
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printf (" open ok, but vendor and product could NOT be "
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"identified\n");
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printf ("%s: found USB scanner (UNKNOWN vendor and product) "
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"at device %s\n", prog_name, file_name);
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unknown_found = SANE_TRUE;
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}
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sanei_usb_close (fd);
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}
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}
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static DIR *
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scan_directory (char * dir_name)
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{
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struct stat stat_buf;
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DIR *dir;
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if (verbose)
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printf ("%s: scanning directory %s\n", prog_name, dir_name);
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if (stat (dir_name, &stat_buf) < 0)
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{
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if (verbose)
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printf ("%s: cannot stat `%s' (%s)\n", prog_name,
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dir_name, strerror (errno));
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return 0;
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}
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if (!S_ISDIR (stat_buf.st_mode))
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{
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if (verbose)
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printf ("%s: `%s' is not a directory\n", prog_name, dir_name);
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return 0;
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}
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if ((dir = opendir (dir_name)) == 0)
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{
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if (verbose)
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printf ("%s: cannot read directory `%s' (%s)\n", dir_name,
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dir_name, strerror (errno));
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return 0;
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}
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return dir;
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}
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static char *
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get_next_file (char * dir_name, DIR * dir)
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{
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struct dirent *dir_entry;
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static char file_name [PATH_MAX];
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do
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{
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dir_entry = readdir (dir);
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if (!dir_entry)
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return 0;
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}
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while (strcmp (dir_entry->d_name, ".") == 0
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|| strcmp (dir_entry->d_name, ".." ) == 0);
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if (strlen (dir_name) + strlen (dir_entry->d_name) + 1 > PATH_MAX)
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{
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if (verbose)
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printf ("%s: filename too long\n", prog_name);
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return 0;
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}
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sprintf (file_name, "%s%s", dir_name, dir_entry->d_name);
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return file_name;
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}
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int
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main (int argc, char **argv)
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{
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unsigned char buffer[16384];
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char **dev_list, **usb_dev_list, *dev_name, **ap;
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int sfd;
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SANE_Bool unknown_found = SANE_FALSE;
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prog_name = strrchr (argv[0], '/');
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if (prog_name)
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@ -461,6 +591,7 @@ main (int argc, char **argv)
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"/dev/scg2e", "/dev/scg2f", "/dev/scg2g",
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"/dev/sg/0", "/dev/sg/1", "/dev/sg/2", "/dev/sg/3",
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"/dev/sg/4", "/dev/sg/5", "/dev/sg/6",
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"/dev/scsi/scanner/", "/dev/scsi/processor/",
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#elif defined(HAVE_CAMLIB_H)
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"/dev/scanner", "/dev/scanner0", "/dev/scanner1",
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"/dev/pass0", "/dev/pass1", "/dev/pass2", "/dev/pass3",
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@ -552,78 +683,66 @@ main (int argc, char **argv)
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printf ("%s: searching for SCSI scanners:\n", prog_name);
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while ((dev_name = *dev_list++))
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{
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int result;
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if (strlen (dev_name) == 0)
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continue; /* Empty device names ... */
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if (verbose)
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printf ("%s: checking %s...", prog_name, dev_name);
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result = sanei_scsi_open (dev_name, &sfd, NULL, NULL);
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if (verbose)
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if (dev_name [strlen (dev_name) - 1] == '/')
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{
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if (result != 0)
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printf (" failed to open (%s)\n", sane_strstatus (result));
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else
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printf (" open ok\n");
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/* check whole directories */
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DIR *dir;
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char * file_name;
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dir = scan_directory (dev_name);
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if (!dir)
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continue;
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while ((file_name = get_next_file (dev_name, dir)))
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check_scsi_file (file_name);
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}
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if (result == SANE_STATUS_GOOD)
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else
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{
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scanner_identify_scanner (buffer, sfd, dev_name);
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sanei_scsi_close (sfd);
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/* check device files */
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check_scsi_file (dev_name);
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}
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}
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if (!check_sg ())
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{
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printf
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("# If your scanner uses SCSI, you must have a driver for your SCSI\n"
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"# adapter and support for SCSI Generic (sg) in your Operating System\n"
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"# adapter and support for SCSI Generic (sg) in your operating system\n"
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"# in order for the scanner to be used with SANE. If your scanner is\n"
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"# NOT listed above, check that you have installed the drivers.\n\n");
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}
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sanei_usb_init ();
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if (verbose)
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printf ("%s: searching for USB scanners:\n", prog_name);
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while ((dev_name = *usb_dev_list++))
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{
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SANE_Status result;
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SANE_Word vendor, product;
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SANE_Int fd;
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if (strlen (dev_name) == 0)
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continue; /* Empty device names ... */
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if (verbose)
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printf ("%s: checking %s...", prog_name, dev_name);
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result = sanei_usb_open (dev_name, &fd);
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if (result != SANE_STATUS_GOOD)
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if (dev_name [strlen (dev_name) - 1] == '/')
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{
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if (verbose)
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printf (" failed to open (%s)\n", sane_strstatus (result));
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/* check whole directories */
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DIR *dir;
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char * file_name;
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dir = scan_directory (dev_name);
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if (!dir)
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continue;
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while ((file_name = get_next_file (dev_name, dir)))
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check_usb_file (file_name);
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}
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else
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{
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result = sanei_usb_get_vendor_product (fd, &vendor, &product);
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if (result == SANE_STATUS_GOOD)
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{
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if (verbose)
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printf (" open ok, vendor and product ids were identified\n");
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printf ("%s: found USB scanner (vendor = 0x%04x, "
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"product = 0x%04x) at device %s\n", prog_name, vendor,
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product, dev_name);
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}
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else
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{
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if (verbose)
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printf (" open ok, but vendor and product could NOT be "
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"identified\n");
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printf ("%s: found USB scanner (UNKNOWN vendor and product) "
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"at device %s\n", prog_name, dev_name);
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unknown_found = SANE_TRUE;
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}
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sanei_usb_close (fd);
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/* check device files */
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check_usb_file (dev_name);
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}
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}
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if (unknown_found)
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printf ("\n"
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"# `UNKNOWN vendor and product' means that there seems to be a scanner\n"
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