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synced 2024-10-24 13:25:52 +03:00
Add a text based callback function to the client.
This commit is contained in:
parent
4e6a65ab9d
commit
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4 changed files with 186 additions and 0 deletions
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@ -23,6 +23,7 @@ set(CLIENT_LINK_LIBRARIES
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set(client_SRCS
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set(client_SRCS
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csync_client.c
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csync_client.c
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csync_auth.c
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)
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)
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include_directories(
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include_directories(
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145
client/csync_auth.c
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145
client/csync_auth.c
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@ -0,0 +1,145 @@
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/*
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* libcsync -- a library to sync a directory with another
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*
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* Copyright (c) 2008 by Andreas Schneider <mail@cynapses.org>
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*
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* vim: ts=2 sw=2 et cindent
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*/
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "csync_auth.h"
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/** Zero a structure */
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#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
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int csync_text_prompt(const char *prompt, char *buf, size_t len) {
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char *ptr = NULL;
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int ok = 0;
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/* read the password */
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while (!ok) {
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fprintf(stdout,"\n");
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fprintf(stdout, "%s", prompt);
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fflush(stdout);
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while (! fgets(buf, len, stdin));
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if ((ptr = strchr(buf, '\n'))) {
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*ptr = '\0';
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}
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ok = 1;
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fprintf(stdout,"\n");
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}
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/* force termination */
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buf[len - 1] = 0;
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/* return nonzero if not okay */
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return !ok;
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}
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int csync_password_prompt(const char *prompt, char *buf, size_t len, int verify) {
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struct termios attr;
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struct termios old_attr;
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int ok = 0;
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int fd = -1;
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char *ptr = NULL;
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ZERO_STRUCT(attr);
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ZERO_STRUCT(old_attr);
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/* get local terminal attributes */
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if (tcgetattr(STDIN_FILENO, &attr) < 0) {
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perror("tcgetattr");
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return -1;
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}
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/* save terminal attributes */
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memcpy(&old_attr, &attr, sizeof(attr));
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if((fd = fcntl(0, F_GETFL, 0)) < 0) {
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perror("fcntl");
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return -1;
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}
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/* disable echo */
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attr.c_lflag &= ~(ECHO);
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/* write attributes to terminal */
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &attr) < 0) {
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perror("tcsetattr");
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return -1;
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}
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/* disable nonblocking I/O */
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if (fd & O_NDELAY) {
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fcntl(0, F_SETFL, fd & ~O_NDELAY);
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}
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/* read the password */
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while (!ok) {
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fprintf(stdout,"\n");
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fprintf(stdout, "%s", prompt);
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fflush(stdout);
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while (! fgets(buf, len, stdin));
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if ((ptr = strchr(buf, '\n'))) {
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*ptr = '\0';
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}
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if (verify) {
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char key_string[len];
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fprintf(stdout, "\nVerifying, please re-enter. %s", prompt);
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fflush(stdout);
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if (! fgets(key_string, sizeof(key_string), stdin)) {
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clearerr(stdin);
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continue;
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}
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if ((ptr = strchr(key_string, '\n'))) {
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*ptr = '\0';
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}
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if (strcmp(buf ,key_string)) {
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printf("\n\07\07Mismatch - try again\n");
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fflush(stdout);
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continue;
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}
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}
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ok = 1;
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fprintf(stdout,"\n");
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}
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/* reset terminal */
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if (tcsetattr(STDIN_FILENO, TCSANOW, &old_attr)) {
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ok = 0;
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}
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/* close fd */
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if (fd & O_NDELAY) {
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fcntl(0, F_SETFL, fd);
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}
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/* force termination */
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buf[len - 1] = 0;
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/* return nonzero if not okay */
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return !ok;
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}
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30
client/csync_auth.h
Normal file
30
client/csync_auth.h
Normal file
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@ -0,0 +1,30 @@
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/*
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* libcsync -- a library to sync a directory with another
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*
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* Copyright (c) 2008 by Andreas Schneider <mail@cynapses.org>
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*
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* vim: ft=c.doxygen ts=2 sw=2 et cindent
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*/
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#ifndef _CSYNC_CLIENT_AUTH_H
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#define _CSYNC_CLIENT_AUTH_H
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int csync_text_prompt(const char *prompt, char *buf, size_t len);
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int csync_password_prompt(const char *prompt, char *buf, size_t len, int verify);
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#endif /* _CSYNC_CLIENT_AUTH_H */
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@ -27,6 +27,8 @@
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#include <csync.h>
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#include <csync.h>
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#include "csync_auth.h"
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const char *argp_program_version = "csync commandline client 0.42";
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const char *argp_program_version = "csync commandline client 0.42";
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const char *argp_program_bug_address = "<csync-devel@csync.org>";
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const char *argp_program_bug_address = "<csync-devel@csync.org>";
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@ -120,6 +122,13 @@ static error_t parse_opt (int key, char *arg, struct argp_state *state) {
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return 0;
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return 0;
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}
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}
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static void csync_auth_fn(char *usr, size_t usrlen, char *pwd, size_t pwdlen) {
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/* get username */
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csync_text_prompt("Username: ", usr, usrlen);
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/* get password */
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csync_password_prompt("Password: ", pwd, pwdlen, 0);
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}
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/* Our argp parser. */
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/* Our argp parser. */
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static struct argp argp = {options, parse_opt, args_doc, doc, NULL, NULL, NULL};
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static struct argp argp = {options, parse_opt, args_doc, doc, NULL, NULL, NULL};
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@ -146,6 +155,7 @@ int main(int argc, char **argv) {
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}
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}
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csync_init(csync);
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csync_init(csync);
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csync_set_module_auth_callback(csync, csync_auth_fn);
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printf("Version: %s\n", csync_version());
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printf("Version: %s\n", csync_version());
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if (arguments.update) {
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if (arguments.update) {
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