source: TI05-delivery/trunk/src/bbftp-server-3.2.0/bbftpd/createadir.c @ 1328

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/TI05-delivery/trunk/src/bbftp-server-3.2.0/bbftpd/createadir.c@1328
Revision 1328, 4.7 KB checked in by spascoe, 13 years ago (diff)

I've created a bbftpd log facility to replace syslog.
At present it allows you to log messages to a file in addition
to syslog. This should help testing on other machines.

Line 
1/*
2 * bbftpd/createadir.c
3 * Copyright (C) 1999, 2000, 2001, 2002 IN2P3, CNRS
4 * bbftp@in2p3.fr
5 * http://doc.in2p3.fr/bbftp
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20 */ 
21
22/****************************************************************************
23
24 
25 RETURN:
26        0  Keep the connection open (does not mean that the directory has been
27           successfully created)
28        -1 Tell the calling program to close the connection
29 
30 createadir.c v 1.8.5  2000/04/28   - Creation of the routine.
31              v 1.8.6  2000/04/04   - Add portage to OSF1
32                                    - Avoid buffer overflow
33              v 1.8.7  2000/05/24   - Correct portage to OSF1
34              v 1.8.10 2000/08/11   - Portage to Linux
35              v 1.9.0  2000/08/18   - Use configure to help portage
36              v 1.9.4  2000/10/16   - Supress %m
37                                    - Correct typo
38              v 2.0.1  2001/04/23   - Correct indentation
39              v 2.1.0  2001/05/30   - Correct bbftpd_log level
40                                     
41 *****************************************************************************/
42#include <errno.h>
43#include <fcntl.h>
44#include <netinet/in.h>
45#include <stdio.h>
46#include <bbftpd_log.h>
47#include <sys/stat.h>
48#include <sys/types.h>
49#include <unistd.h>
50
51#include <bbftpd.h>
52#include <common.h>
53#include <daemon.h>
54#include <structures.h>
55
56
57extern int msgsock ;
58extern  int     recvcontrolto ;
59
60int createadir(int code, int msglen) {
61
62    char    receive_buffer[MAXMESSLEN] ;
63    int        savederrno ;
64    char    logmessage[256] ;
65
66#ifndef WORDS_BIGENDIAN
67    msglen = ntohl(msglen) ;
68#endif
69    if ( msglen > MAXMESSLEN ) {
70        /*
71        ** In order to avoid buffer overflow we reject message to
72        ** big
73        */
74        bbftpd_log(BBFTPD_ERR,"Message to big in createdir (%d,%d)",msglen,MAXMESSLEN) ;
75        reply(MSG_BAD_NO_RETRY,"Directory too long") ;
76        return -1 ;
77    }
78    /*
79    ** Read the characteristics of the directory
80    */
81    if ( readmessage(msgsock,receive_buffer,msglen,recvcontrolto) < 0 ) {
82        /*
83        ** Error ...
84        */
85        return -1 ;
86    }
87    /*
88    ** receive_buffer contains the directory to create
89    */
90    receive_buffer[msglen] = '\0' ;
91    if ( code == MSG_MKDIR ) {
92        bbftpd_log(BBFTPD_DEBUG,"Creating directory %s",receive_buffer) ;
93    }
94    /*
95    ** We create the directory
96    */
97    if ( mkdir(receive_buffer,S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP) < 0 ) {
98        /*
99        ** Depending on errno we are going to tell the client to
100        ** retry or not
101        */
102        savederrno = errno ;
103        sprintf(logmessage,"Error creation directory %s : %s",receive_buffer,strerror(errno)) ;
104        bbftpd_log(BBFTPD_ERR,"Error creation directory %s : %s",receive_buffer,strerror(errno)) ;
105        /*
106        ** We tell the client not to retry in the following case (even in waiting
107        ** WAITRETRYTIME the problem will not be solved) :
108        **        EACCES        : Search permission denied
109        **        EDQUOT        : No more quota
110        **        ENOSPC        : No more space
111        **        ELOOP        : To many symbolic links on path
112        **        ENAMETOOLONG: Path argument too long
113        **        ENOTDIR        : A component in path is not a directory
114        **        EROFS        : The path prefix resides on a read-only file system.
115        **        ENOENT      : A component of the path prefix does not exist or is a null pathname.
116        **        EEXIST      : The named file already exists.
117        */
118        if ( savederrno == EACCES ||
119                savederrno == EDQUOT ||
120                savederrno == ENOSPC ||
121                savederrno == ELOOP ||
122                savederrno == ENAMETOOLONG ||
123                savederrno == ENOTDIR ||
124                savederrno == EROFS ||
125                savederrno == ENOENT ||
126                savederrno == EEXIST ) {
127            reply(MSG_BAD_NO_RETRY,logmessage) ;
128        } else {
129            reply(MSG_BAD,logmessage) ;
130        }
131        return 0 ;
132    }
133    reply(MSG_OK,"OK") ;
134    return 0 ;
135}
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