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/* sane - Scanner Access Now Easy.
Copyright (C) 1997 Andreas Beck
This file is part of the SANE package.
SANE is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.
SANE is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with sane; see the file COPYING.
If not, see <https://www.gnu.org/licenses/>.
This file implements a simple SANE frontend (well it rather is a
transport layer, but seen from libsane it is a frontend) which acts
as a NETSANE server. The NETSANE specifications should have come
with this package.
Feel free to enhance this program ! It needs extension especially
regarding crypto-support and authentication.
*/
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#include "../include/sane/sane.h"
void
auth_callback (SANE_String_Const domain,
SANE_Char *username,
SANE_Char *password)
{
printf ("Client '%s' requested authorization.\nUser:\n", domain);
scanf ("%s", username);
printf ("Password:\n");
scanf ("%s", password);
return;
}
void
testsane (const char *dev_name)
{
int hlp, x;
SANE_Status bla;
SANE_Int blubb;
SANE_Handle hand;
SANE_Parameters pars;
const SANE_Option_Descriptor *sod;
const SANE_Device **device_list;
char buffer[2048];
bla = sane_init (&blubb, auth_callback);
fprintf (stderr, "Init : stat=%d ver=%x\nPress Enter to continue...",
bla, blubb);
getchar ();
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_get_devices (&device_list, SANE_FALSE);
fprintf (stderr, "GetDev : stat=%s\n", sane_strstatus (bla));
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_open (dev_name, &hand);
fprintf (stderr, "Open : stat=%s hand=%p\n", sane_strstatus (bla), hand);
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_set_io_mode (hand, 0);
fprintf (stderr, "SetIoMode : stat=%s\n", sane_strstatus (bla));
for (hlp = 0; hlp < 9999; hlp++)
{
sod = sane_get_option_descriptor (hand, hlp);
if (sod == NULL)
break;
fprintf (stderr, "Gopt(%d) : stat=%p\n", hlp, sod);
fprintf (stderr, "name : %s\n", sod->name);
fprintf (stderr, "title: %s\n", sod->title);
fprintf (stderr, "desc : %s\n", sod->desc);
fprintf (stderr, "type : %d\n", sod->type);
fprintf (stderr, "unit : %d\n", sod->unit);
fprintf (stderr, "size : %d\n", sod->size);
fprintf (stderr, "cap : %d\n", sod->cap);
fprintf (stderr, "ctyp : %d\n", sod->constraint_type);
switch (sod->constraint_type)
{
case SANE_CONSTRAINT_NONE:
break;
case SANE_CONSTRAINT_STRING_LIST:
fprintf (stderr, "stringlist:\n");
break;
case SANE_CONSTRAINT_WORD_LIST:
fprintf (stderr, "wordlist (%d) : ", sod->constraint.word_list[0]);
for (x = 1; x <= sod->constraint.word_list[0]; x++)
fprintf (stderr, " %d ", sod->constraint.word_list[x]);
fprintf (stderr, "\n");
break;
case SANE_CONSTRAINT_RANGE:
fprintf (stderr, "range: %d-%d %d \n", sod->constraint.range->min,
sod->constraint.range->max, sod->constraint.range->quant);
break;
}
}
bla = sane_get_parameters (hand, &pars);
fprintf (stderr,
"Parm : stat=%s form=%d,lf=%d,bpl=%d,pixpl=%d,lin=%d,dep=%d\n",
sane_strstatus (bla),
pars.format, pars.last_frame,
pars.bytes_per_line, pars.pixels_per_line,
pars.lines, pars.depth);
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_start (hand);
fprintf (stderr, "Start : stat=%s\n", sane_strstatus (bla));
if (bla != SANE_STATUS_GOOD)
return;
do
{
bla = sane_read (hand, buffer, sizeof (buffer), &blubb);
/*printf("Read : stat=%s len=%d\n",sane_strstatus (bla),blubb); */
if (bla != SANE_STATUS_GOOD)
{
if (bla == SANE_STATUS_EOF)
break;
return;
}
fwrite (buffer, 1, blubb, stdout);
}
while (1);
sane_cancel (hand);
fprintf (stderr, "Cancel.\n");
sane_close (hand);
fprintf (stderr, "Close\n");
for (hlp = 0; hlp < 20; hlp++)
fprintf (stderr, "STRS %d=%s\n", hlp, sane_strstatus (hlp));
fprintf (stderr, "Exit.\n");
}
int
main (int argc, char *argv[])
{
if (argc != 2 && argc != 3)
{
fprintf (stderr, "Usage: %s devicename [hostname]\n", argv[0]);
exit (0);
}
if (argc == 3)
{
char envbuf[1024];
sprintf (envbuf, "SANE_NET_HOST=%s", argv[2]);
putenv (envbuf);
}
fprintf (stderr, "This is a SANE test application.\n"
"Now connecting to device %s.\n", argv[1]);
testsane (argv[1]);
sane_exit ();
return 0;
}
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