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902 lines
20 KiB
902 lines
20 KiB
#if HAVE_CONFIG_H
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#include "clamav-config.h"
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#endif
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#ifdef CLAMUKO
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/* Dazuko Interface. Interace with Dazuko for file access control.
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Written by John Ogness <jogness@antivir.de>
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Copyright (c) 2002, 2003, 2004 H+BEDV Datentechnik GmbH
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of Dazuko nor the names of its contributors may be used
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to endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include "dazukoio_xp.h"
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#include "dazukoio.h"
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#if !defined(NO_COMPAT12)
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#include "dazukoio_compat12.h"
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#endif
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#define ITOA_SIZE 32
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dazuko_id_t *_GLOBAL_DAZUKO = NULL;
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#if !defined(NO_COMPAT12)
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char _GLOBAL_DAZUKO_COMPAT12 = 0;
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#endif
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static inline char char_to_hex(char c)
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{
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/* ugly, but fast */
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switch (c)
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{
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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case 'a': case 'A': return 10;
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case 'b': case 'B': return 11;
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case 'c': case 'C': return 12;
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case 'd': case 'D': return 13;
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case 'e': case 'E': return 14;
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case 'f': case 'F': return 15;
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}
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return 0;
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}
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static void unescape_string(char *string)
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{
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char *p;
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for (p=string ; *p ; p++)
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{
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/* check if we have \x */
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if ((*p == '\\') && (*(p+1) == 'x'))
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{
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/* this is not cheap, but it should not occur often */
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/* check if we have two more values following \x */
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if (*(p+2) && *(p+3))
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{
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*p = char_to_hex(*(p+2));
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*p <<= 4;
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*p |= char_to_hex(*(p+3));
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memmove(p + 1, p + 4, strlen(p+4) + 1);
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}
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}
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}
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}
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static int get_value(const char *key, const char *string, char *buffer, size_t buffer_size)
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{
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const char *p1;
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const char *p2;
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size_t size;
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if (buffer == NULL || buffer_size < 1)
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return -1;
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buffer[0] = 0;
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if (key == NULL || string == NULL)
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return -1;
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p1 = strstr(string, key);
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if (p1 == NULL)
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return -1;
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p1 += strlen(key);
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for (p2=p1 ; *p2 && *p2!='\n' ; p2++)
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continue;
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size = p2 - p1;
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if (size >= buffer_size)
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size = buffer_size - 1;
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memcpy(buffer, p1, size);
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buffer[size] = 0;
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return 0;
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}
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int dazukoRegister(const char *groupName, const char *mode)
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{
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return dazukoRegister_TS(&_GLOBAL_DAZUKO, groupName, mode);
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}
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int dazukoRegister_TS(dazuko_id_t **dazuko_id, const char *groupName, const char *mode)
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{
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struct dazuko_request *request;
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char buffer[ITOA_SIZE];
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char regMode[3];
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dazuko_id_t *temp_id;
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ssize_t size;
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int write_mode = 0;
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#if !defined(NO_COMPAT12)
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int compat12_ret;
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#endif
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if (dazuko_id == NULL)
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return -1;
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/* set default group name if one was not given */
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if (groupName == NULL)
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groupName = "_GENERIC";
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/* set default mode if one was not given */
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if (mode == NULL)
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mode = "r";
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if (strcasecmp(mode, "r") == 0)
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{
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strncpy(regMode, "R", sizeof(regMode));
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regMode[sizeof(regMode)-1]='\0';
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write_mode = 0;
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}
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else if (strcasecmp(mode, "r+") == 0 || strcasecmp(mode, "rw") == 0)
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{
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strncpy(regMode, "RW", sizeof(regMode));
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regMode[sizeof(regMode)-1]='\0';
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write_mode = 1;
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}
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else
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{
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return -1;
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}
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regMode[sizeof(regMode) - 1] = 0;
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#if !defined(NO_COMPAT12)
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if (_GLOBAL_DAZUKO_COMPAT12)
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{
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compat12_ret = dazukoRegister_TS_compat12_wrapper(dazuko_id, groupName);
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if (compat12_ret == 0)
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(*dazuko_id)->write_mode = write_mode;
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return compat12_ret;
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}
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#endif
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/* create temporary id */
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temp_id = (dazuko_id_t *)malloc(sizeof(*temp_id));
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if (temp_id == NULL)
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return -1;
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memset(temp_id, 0, sizeof(*temp_id));
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/* open device */
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temp_id->device = open("/dev/dazuko", O_RDWR);
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if (temp_id->device < 0)
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{
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free(temp_id);
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return -1;
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}
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/* read device major number */
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memset(buffer, 0, sizeof(buffer));
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if (read(temp_id->device, buffer, sizeof(buffer)-1) < 1)
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{
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close(temp_id->device);
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free(temp_id);
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return -1;
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}
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temp_id->dev_major = atoi(buffer);
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if (temp_id->dev_major < 0)
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{
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close(temp_id->device);
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free(temp_id);
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return -1;
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}
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request = (struct dazuko_request *)malloc(sizeof(*request));
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if (request == NULL)
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{
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close(temp_id->device);
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free(temp_id);
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return -1;
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}
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memset(request, 0, sizeof(*request));
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request->type[0] = REGISTER;
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size = 1 + 2 + 1 + strlen(regMode); /* \nRM=mode */
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size += 1 + 2 + 1 + strlen(groupName); /* \nGN=groupName */
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size += 1; /* \0 */
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request->buffer = (char *)malloc(size);
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if (request->buffer == NULL)
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{
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close(temp_id->device);
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free(temp_id);
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free(request);
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return -1;
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}
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snprintf(request->buffer, size, "\nRM=%s\nGN=%s", regMode, groupName);
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request->buffer[size - 1] = 0;
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request->buffer_size = strlen(request->buffer) + 1;
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size = 4096;
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request->reply_buffer = (char *)malloc(size);
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if (request->reply_buffer == NULL)
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{
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close(temp_id->device);
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free(temp_id);
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free(request->buffer);
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free(request);
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return -1;
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}
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memset(request->reply_buffer, 0, size);
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request->reply_buffer_size = size;
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snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
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buffer[sizeof(buffer)-1] = 0;
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size = strlen(buffer) + 1;
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if (write(temp_id->device, buffer, size) != size)
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{
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close(temp_id->device);
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free(temp_id);
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free(request->buffer);
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free(request->reply_buffer);
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free(request);
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#if !defined(NO_COMPAT12)
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/* we try compat12 mode */
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compat12_ret = dazukoRegister_TS_compat12_wrapper(dazuko_id, groupName);
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if (compat12_ret == 0)
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{
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(*dazuko_id)->write_mode = write_mode;
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_GLOBAL_DAZUKO_COMPAT12 = 1;
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}
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return compat12_ret;
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#else
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return -1;
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#endif
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}
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if (get_value("\nID=", request->reply_buffer, buffer, sizeof(buffer)) != 0)
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{
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close(temp_id->device);
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free(temp_id);
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free(request->buffer);
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free(request->reply_buffer);
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free(request);
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#if !defined(NO_COMPAT12)
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/* we try compat12 mode */
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compat12_ret = dazukoRegister_TS_compat12_wrapper(dazuko_id, groupName);
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if (compat12_ret == 0)
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{
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(*dazuko_id)->write_mode = write_mode;
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_GLOBAL_DAZUKO_COMPAT12 = 1;
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}
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return compat12_ret;
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#else
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return -1;
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#endif
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}
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temp_id->id = atoi(buffer);
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if (temp_id->id < 0)
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{
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close(temp_id->device);
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free(temp_id);
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free(request->buffer);
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free(request->reply_buffer);
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free(request);
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return -1;
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}
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temp_id->write_mode = write_mode;
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free(request->buffer);
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free(request->reply_buffer);
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free(request);
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*dazuko_id = temp_id;
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return 0;
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}
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int dazukoSetAccessMask(unsigned long accessMask)
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{
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return dazukoSetAccessMask_TS(_GLOBAL_DAZUKO, accessMask);
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}
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int dazukoSetAccessMask_TS(dazuko_id_t *dazuko_id, unsigned long accessMask)
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{
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struct dazuko_request *request;
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ssize_t size;
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char buffer[ITOA_SIZE];
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if (dazuko_id == NULL)
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return -1;
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#if !defined(NO_COMPAT12)
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if (_GLOBAL_DAZUKO_COMPAT12)
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return dazukoSetAccessMask_TS_compat12(dazuko_id, accessMask);
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#endif
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if (dazuko_id->device < 0 || dazuko_id->dev_major < 0 || dazuko_id->id < 0)
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return -1;
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request = (struct dazuko_request *)malloc(sizeof(*request));
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if (request == NULL)
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return -1;
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memset(request, 0, sizeof(*request));
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request->type[0] = SET_ACCESS_MASK;
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size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
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size += 1 + 2 + 1 + ITOA_SIZE; /* \nAM=accessMask */
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size += 1; /* \0 */
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request->buffer = (char *)malloc(size);
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if (request->buffer == NULL)
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{
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free(request);
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return -1;
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}
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snprintf(request->buffer, size, "\nID=%d\nAM=%lu", dazuko_id->id, accessMask);
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request->buffer[size - 1] = 0;
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request->buffer_size = strlen(request->buffer) + 1;
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snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
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buffer[sizeof(buffer)-1] = 0;
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size = strlen(buffer) + 1;
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if (write(dazuko_id->device, buffer, size) != size)
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{
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free(request->buffer);
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free(request);
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return -1;
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}
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free(request->buffer);
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free(request);
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return 0;
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}
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static int dazuko_set_path(dazuko_id_t *dazuko_id, const char *path, int type)
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{
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struct dazuko_request *request;
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ssize_t size;
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char buffer[ITOA_SIZE];
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if (dazuko_id == NULL)
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return -1;
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if (dazuko_id->device < 0 || dazuko_id->dev_major < 0 || dazuko_id->id < 0)
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return -1;
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if (path == NULL)
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return -1;
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request = (struct dazuko_request *)malloc(sizeof(*request));
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if (request == NULL)
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return -1;
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memset(request, 0, sizeof(*request));
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request->type[0] = type;
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size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
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size += 1 + 2 + 1 + strlen(path); /* \nPT=path */
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size += 1; /* \0 */
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request->buffer = (char *)malloc(size);
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if (request->buffer == NULL)
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{
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free(request);
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return -1;
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}
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snprintf(request->buffer, size, "\nID=%d\nPT=%s", dazuko_id->id, path);
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request->buffer[size - 1] = 0;
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request->buffer_size = strlen(request->buffer) + 1;
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snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
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buffer[sizeof(buffer)-1] = 0;
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size = strlen(buffer) + 1;
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if (write(dazuko_id->device, buffer, size) != size)
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{
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free(request->buffer);
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free(request);
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return -1;
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}
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free(request->buffer);
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free(request);
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return 0;
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}
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int dazukoAddIncludePath(const char *path)
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{
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return dazukoAddIncludePath_TS(_GLOBAL_DAZUKO, path);
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}
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int dazukoAddIncludePath_TS(dazuko_id_t *dazuko_id, const char *path)
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{
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#if !defined(NO_COMPAT12)
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if (_GLOBAL_DAZUKO_COMPAT12)
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return dazukoAddIncludePath_TS_compat12(dazuko_id, path);
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#endif
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return dazuko_set_path(dazuko_id, path, ADD_INCLUDE_PATH);
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}
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int dazukoAddExcludePath(const char *path)
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{
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return dazukoAddExcludePath_TS(_GLOBAL_DAZUKO, path);
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}
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int dazukoAddExcludePath_TS(dazuko_id_t *dazuko_id, const char *path)
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{
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#if !defined(NO_COMPAT12)
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if (_GLOBAL_DAZUKO_COMPAT12)
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return dazukoAddExcludePath_TS_compat12(dazuko_id, path);
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#endif
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return dazuko_set_path(dazuko_id, path, ADD_EXCLUDE_PATH);
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}
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int dazukoRemoveAllPaths(void)
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{
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return dazukoRemoveAllPaths_TS(_GLOBAL_DAZUKO);
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}
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int dazukoRemoveAllPaths_TS(dazuko_id_t *dazuko_id)
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{
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struct dazuko_request *request;
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ssize_t size;
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char buffer[ITOA_SIZE];
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if (dazuko_id == NULL)
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return -1;
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#if !defined(NO_COMPAT12)
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if (_GLOBAL_DAZUKO_COMPAT12)
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return dazukoRemoveAllPaths_TS_compat12(dazuko_id);
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#endif
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if (dazuko_id->device < 0 || dazuko_id->dev_major < 0 || dazuko_id->id < 0)
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return -1;
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request = (struct dazuko_request *)malloc(sizeof(*request));
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if (request == NULL)
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return -1;
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memset(request, 0, sizeof(*request));
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request->type[0] = REMOVE_ALL_PATHS;
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size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
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size += 1; /* \0 */
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request->buffer = (char *)malloc(size);
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if (request->buffer == NULL)
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{
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free(request);
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return -1;
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}
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snprintf(request->buffer, size, "\nID=%d", dazuko_id->id);
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request->buffer[size - 1] = 0;
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request->buffer_size = strlen(request->buffer) + 1;
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snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
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buffer[sizeof(buffer)-1] = 0;
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size = strlen(buffer) + 1;
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|
|
if (write(dazuko_id->device, buffer, size) != size)
|
|
{
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
free(request->buffer);
|
|
free(request);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dazukoGetAccess(struct dazuko_access **acc)
|
|
{
|
|
return dazukoGetAccess_TS(_GLOBAL_DAZUKO, acc);
|
|
}
|
|
|
|
int dazukoGetAccess_TS(dazuko_id_t *dazuko_id, struct dazuko_access **acc)
|
|
{
|
|
struct dazuko_request *request;
|
|
struct dazuko_access *temp_acc;
|
|
ssize_t size;
|
|
size_t filename_size;
|
|
char buffer[ITOA_SIZE];
|
|
#if !defined(NO_COMPAT12)
|
|
int compat12_ret;
|
|
#endif
|
|
|
|
if (dazuko_id == NULL)
|
|
return -1;
|
|
|
|
#if !defined(NO_COMPAT12)
|
|
if (_GLOBAL_DAZUKO_COMPAT12)
|
|
{
|
|
compat12_ret = dazukoGetAccess_TS_compat12_wrapper(dazuko_id, acc);
|
|
|
|
if (compat12_ret == 0 && !(dazuko_id->write_mode))
|
|
{
|
|
/* we are in read_only mode so we return the access immediately */
|
|
|
|
dazukoReturnAccess_TS_compat12_wrapper(dazuko_id, acc, 1, 0);
|
|
|
|
/* this could be dangerous, we do not check if the return was successfull! */
|
|
}
|
|
|
|
return compat12_ret;
|
|
}
|
|
#endif
|
|
|
|
if (dazuko_id->device < 0 || dazuko_id->dev_major < 0 || dazuko_id->id < 0)
|
|
return -1;
|
|
|
|
if (acc == NULL)
|
|
return -1;
|
|
|
|
request = (struct dazuko_request *)malloc(sizeof(*request));
|
|
if (request == NULL)
|
|
return -1;
|
|
|
|
memset(request, 0, sizeof(*request));
|
|
|
|
request->type[0] = GET_AN_ACCESS;
|
|
|
|
size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
|
|
size += 1; /* \0 */
|
|
|
|
request->buffer = (char *)malloc(size);
|
|
if (request->buffer == NULL)
|
|
{
|
|
free(request);
|
|
return -1;
|
|
}
|
|
snprintf(request->buffer, size, "\nID=%d", dazuko_id->id);
|
|
request->buffer[size - 1] = 0;
|
|
|
|
request->buffer_size = strlen(request->buffer) + 1;
|
|
|
|
size = 1 + 2 + 1 + DAZUKO_FILENAME_MAX_LENGTH; /* \nFN=filename */
|
|
size += 1024; /* miscellaneous access attributes */
|
|
size += 1; /* \0 */
|
|
request->reply_buffer = (char *)malloc(size);
|
|
if (request->reply_buffer == NULL)
|
|
{
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
memset(request->reply_buffer, 0, size);
|
|
request->reply_buffer_size = size;
|
|
|
|
temp_acc = (struct dazuko_access *)malloc(sizeof(*temp_acc));
|
|
if (temp_acc == NULL)
|
|
{
|
|
free(request->reply_buffer);
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
memset(temp_acc, 0, sizeof(*temp_acc));
|
|
|
|
filename_size = DAZUKO_FILENAME_MAX_LENGTH + 1;
|
|
temp_acc->filename = (char *)malloc(filename_size);
|
|
if (temp_acc->filename == NULL)
|
|
{
|
|
free(temp_acc);
|
|
free(request->reply_buffer);
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
|
|
buffer[sizeof(buffer)-1] = 0;
|
|
size = strlen(buffer) + 1;
|
|
|
|
if (write(dazuko_id->device, buffer, size) != size)
|
|
{
|
|
free(temp_acc->filename);
|
|
free(temp_acc);
|
|
free(request->reply_buffer);
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
if (request->reply_buffer_size_used > 0)
|
|
{
|
|
if (get_value("\nFN=", request->reply_buffer, temp_acc->filename, filename_size) == 0)
|
|
{
|
|
temp_acc->set_filename = 1;
|
|
unescape_string(temp_acc->filename);
|
|
}
|
|
|
|
if (get_value("\nEV=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->event = atoi(buffer);
|
|
temp_acc->set_event = 1;
|
|
}
|
|
|
|
if (get_value("\nFL=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->flags = atoi(buffer);
|
|
temp_acc->set_flags = 1;
|
|
}
|
|
|
|
if (get_value("\nMD=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->mode = atoi(buffer);
|
|
temp_acc->set_mode = 1;
|
|
}
|
|
|
|
if (get_value("\nUI=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->uid = atoi(buffer);
|
|
temp_acc->set_uid = 1;
|
|
}
|
|
|
|
if (get_value("\nPI=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->pid = atoi(buffer);
|
|
temp_acc->set_pid = 1;
|
|
}
|
|
|
|
if (get_value("\nFS=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->file_size = atol(buffer);
|
|
temp_acc->set_file_size = 1;
|
|
}
|
|
|
|
if (get_value("\nFU=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->file_uid = atoi(buffer);
|
|
temp_acc->set_file_uid = 1;
|
|
}
|
|
|
|
if (get_value("\nFG=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->file_gid = atoi(buffer);
|
|
temp_acc->set_file_gid = 1;
|
|
}
|
|
|
|
if (get_value("\nDT=", request->reply_buffer, buffer, sizeof(buffer)) == 0)
|
|
{
|
|
temp_acc->file_device = atoi(buffer);
|
|
temp_acc->set_file_device = 1;
|
|
}
|
|
}
|
|
|
|
free(request->reply_buffer);
|
|
free(request->buffer);
|
|
free(request);
|
|
|
|
*acc = temp_acc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dazukoReturnAccess(struct dazuko_access **acc)
|
|
{
|
|
return dazukoReturnAccess_TS(_GLOBAL_DAZUKO, acc);
|
|
}
|
|
|
|
int dazukoReturnAccess_TS(dazuko_id_t *dazuko_id, struct dazuko_access **acc)
|
|
{
|
|
struct dazuko_request *request;
|
|
ssize_t size;
|
|
char buffer[ITOA_SIZE];
|
|
|
|
if (dazuko_id == NULL)
|
|
return -1;
|
|
|
|
#if !defined(NO_COMPAT12)
|
|
if (_GLOBAL_DAZUKO_COMPAT12)
|
|
return dazukoReturnAccess_TS_compat12_wrapper(dazuko_id, acc, dazuko_id->write_mode, 1);
|
|
#endif
|
|
|
|
if (dazuko_id->device < 0 || dazuko_id->dev_major < 0 || dazuko_id->id < 0)
|
|
return -1;
|
|
|
|
if (acc == NULL)
|
|
return -1;
|
|
|
|
if (*acc == NULL)
|
|
return -1;
|
|
|
|
if (dazuko_id->write_mode)
|
|
{
|
|
request = (struct dazuko_request *)malloc(sizeof(*request));
|
|
if (request == NULL)
|
|
return -1;
|
|
|
|
memset(request, 0, sizeof(*request));
|
|
|
|
request->type[0] = RETURN_AN_ACCESS;
|
|
|
|
size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
|
|
size += 1 + 2 + 1 + ITOA_SIZE; /* \nDN=deny */
|
|
size += 1; /* \0 */
|
|
|
|
request->buffer = (char *)malloc(size);
|
|
if (request->buffer == NULL)
|
|
{
|
|
free(request);
|
|
return -1;
|
|
}
|
|
snprintf(request->buffer, size, "\nID=%d\nDN=%d", dazuko_id->id, (*acc)->deny == 0 ? 0 : 1);
|
|
request->buffer[size - 1] = 0;
|
|
|
|
request->buffer_size = strlen(request->buffer) + 1;
|
|
|
|
snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
|
|
buffer[sizeof(buffer)-1] = 0;
|
|
size = strlen(buffer) + 1;
|
|
|
|
if (write(dazuko_id->device, buffer, size) != size)
|
|
{
|
|
/* there could be big problems if this happens */
|
|
|
|
if ((*acc)->filename != NULL)
|
|
free((*acc)->filename);
|
|
free(*acc);
|
|
*acc = NULL;
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
free(request->buffer);
|
|
free(request);
|
|
}
|
|
|
|
if ((*acc)->filename != NULL)
|
|
free((*acc)->filename);
|
|
free(*acc);
|
|
*acc = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dazukoUnregister(void)
|
|
{
|
|
return dazukoUnregister_TS(&_GLOBAL_DAZUKO);
|
|
}
|
|
|
|
int dazukoUnregister_TS(dazuko_id_t **dazuko_id)
|
|
{
|
|
struct dazuko_request *request;
|
|
ssize_t size;
|
|
char buffer[ITOA_SIZE];
|
|
|
|
if (dazuko_id == NULL)
|
|
return -1;
|
|
|
|
#if !defined(NO_COMPAT12)
|
|
if (_GLOBAL_DAZUKO_COMPAT12)
|
|
return dazukoUnregister_TS_compat12_wrapper(dazuko_id);
|
|
#endif
|
|
|
|
if (*dazuko_id == NULL)
|
|
return -1;
|
|
|
|
if ((*dazuko_id)->device < 0)
|
|
return -1;
|
|
|
|
if ((*dazuko_id)->dev_major >= 0 && (*dazuko_id)->id >= 0)
|
|
{
|
|
request = (struct dazuko_request *)malloc(sizeof(*request));
|
|
if (request == NULL)
|
|
return -1;
|
|
|
|
memset(request, 0, sizeof(*request));
|
|
|
|
request->type[0] = UNREGISTER;
|
|
|
|
size = 1 + 2 + 1 + ITOA_SIZE; /* \nID=id */
|
|
size += 1; /* \0 */
|
|
|
|
request->buffer = (char *)malloc(size);
|
|
if (request->buffer == NULL)
|
|
{
|
|
free(request);
|
|
return -1;
|
|
}
|
|
snprintf(request->buffer, size, "\nID=%d", (*dazuko_id)->id);
|
|
request->buffer[size - 1] = 0;
|
|
|
|
request->buffer_size = strlen(request->buffer) + 1;
|
|
|
|
snprintf(buffer, sizeof(buffer), "\nRA=%lu", (unsigned long)request);
|
|
buffer[sizeof(buffer)-1] = 0;
|
|
size = strlen(buffer) + 1;
|
|
|
|
if (write((*dazuko_id)->device, buffer, size) != size)
|
|
{
|
|
/* there could be big problems if this happens */
|
|
|
|
close((*dazuko_id)->device);
|
|
free(*dazuko_id);
|
|
*dazuko_id = NULL;
|
|
free(request->buffer);
|
|
free(request);
|
|
return -1;
|
|
}
|
|
|
|
free(request->buffer);
|
|
free(request);
|
|
}
|
|
|
|
close((*dazuko_id)->device);
|
|
free(*dazuko_id);
|
|
*dazuko_id = NULL;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|