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Contents of /tags/REL-1.1/ftperrors.c

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Revision 14 - (show annotations) (download) (as text)
Mon Feb 23 02:24:24 2009 UTC (15 years, 1 month ago) by hirohitohigashi
File MIME type: text/x-csrc
File size: 10968 byte(s) 
Tag release 1.1
1 /*
2
3 libftp 1.0 (stable): this is an FTP library to simplify the work to a Developer
4 who want to work with FTP servers (RFC 959).
5 Copyright (C) 2007/2008 omnipresent - omnipresent[at]email.it
6
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) 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, see <http://www.gnu.org/licenses/>.
19
20 */
21
22 #include <stdio.h>
23 #include <errno.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <string.h>
27 #include <sys/types.h>
28 #include <sys/socket.h>
29 #include <sys/stat.h>
30 #include <netinet/in.h>
31 #include <netdb.h>
32
33 #include "ftp_main.h"
34
35
36 #define CMD_OK "200"
37 #define CMD_NI "202"
38 #define SYS_STATUS "211"
39 #define HLP_MSG "214"
40 #define NAME_SYS "215"
41 #define READY "220"
42 #define CLOSE "221"
43 #define NO_TRANSFER "225"
44 #define CLOSE_CON "226"
45 #define PASSIVE_MOD "227"
46 #define PATH_DONE "257"
47 #define LOGGED "230"
48 #define REQ_FILE_OK "250"
49 #define PATH_CREATED "257"
50 #define USER_OK "331"
51 #define NEED_ACCT "332"
52 #define ACTION_PEND "350" //350 Requested file action pending further information.
53 #define SERVICE_NA "421"
54 #define NOT_OPEN_DT "425"
55 #define CON_CLOSED "426"
56 #define FILE_NOT_TAKEN "450" //File not available: eg busy
57 #define ACT_ABORTED "451"
58 #define ACT_NOT_TAKEN "452"
59 #define SYNTAX_ERR "500" //Command unrecognized
60 #define SYNTAX_ERR_P "501" //Syntax error in parameters or arguments
61 #define CMD_NOT_IMPL "502"
62 #define BAD_SEQ_CMD "503"
63 #define NOT_LOGGED "530"
64 #define ACCT_FOR_FILE "532"
65 #define FILE_NOT_FOUND "550" //File not found, no access to file
66 #define ACTION_ABORTED "551"
67 #define ALLOCATION_ERR "552"
68 #define FILE_ERR_NAME "553"
69
70 /***
71 200 Command okay.
72 202 Command not implemented, superfluous at this site.
73 211 System status, or system help reply.
74 212 Directory status.
75 213 File status.
76 214 Help message.
77 On how to use the server or the meaning of a particular
78 non-standard command. This reply is useful only to the
79 human user.
80 215 NAME system type.
81
82 Where NAME is an official system name from the list in the
83 Assigned Numbers document.
84 220 Service ready for new user.
85 221 Service closing control connection.
86 Logged out if appropriate.
87 225 Data connection open; no transfer in progress.
88 226 Closing data connection.
89 Requested file action successful (for example, file
90 transfer or file abort).
91 227 Entering Passive Mode (h1,h2,h3,h4,p1,p2).
92 230 User logged in, proceed.
93 250 Requested file action okay, completed.
94 257 "PATHNAME" created.
95
96 331 User name okay, need password.
97 332 Need account for login.
98 350 Requested file action pending further information.
99
100 421 Service not available, closing control connection.
101 This may be a reply to any command if the service knows it
102 must shut down.
103 425 Can't open data connection.
104 426 Connection closed; transfer aborted.
105 450 Requested file action not taken.
106 File unavailable (e.g., file busy).
107 451 Requested action aborted: local error in processing.
108 452 Requested action not taken.
109 Insufficient storage space in system.
110 500 Syntax error, command unrecognized.
111 This may include errors such as command line too long.
112 501 Syntax error in parameters or arguments.
113 502 Command not implemented.
114 503 Bad sequence of commands.
115 504 Command not implemented for that parameter.
116 530 Not logged in.
117 532 Need account for storing files.
118 550 Requested action not taken.
119 File unavailable (e.g., file not found, no access).
120 551 Requested action aborted: page type unknown.
121 552 Requested file action aborted.
122 Exceeded storage allocation (for current directory or
123 dataset).
124 553 Requested action not taken.
125 File name not allowed.
126
127 ***/
128
129 /***
130 error_handler:
131 - int sck => Socket Descriptor
132 - int connected => Value 0 or 1:
133 . 0 System Connected
134 . 1 System Not Connected
135 - int verbose => Print Inforations:
136 . 0 Do not Print
137 . 1 Print
138 ***/
139
140 int ftp_login_handler (char *cmd_reply, int verbose) {
141
142 if (verbose == 1) {
143
144 if (strfnbytes(cmd_reply, NEED_ACCT, 3) == 0) {
145 printf("--[ Server: Need an Account to Login.\n");
146 return -1;
147 } else if (strfnbytes(cmd_reply, LOGGED, 3) == 0) {
148 printf("--[ Server: User Logged in.\n");
149 return 0;
150 } else if (strfnbytes(cmd_reply, USER_OK, 3) == 0) {
151 printf("--[ Server: User Okay, need a Password.\n");
152 return 2;
153 } else if (strfnbytes(cmd_reply, NOT_LOGGED, 3) == 0) {
154 printf("--[ Server: User not logged in.\n");
155 return -1;
156 } else {
157 printf("--[ Server: Unknown reply at the login process.\n");
158 return -1;
159 }
160
161 } else {
162
163 if (strfnbytes(cmd_reply, NEED_ACCT, 3) == 0) {
164 return -1;
165 } else if (strfnbytes(cmd_reply, LOGGED, 3) == 0) {
166 return 0;
167 } else if (strfnbytes(cmd_reply, USER_OK, 3) == 0) {
168 return 2;
169 } else if (strfnbytes(cmd_reply, NOT_LOGGED, 3) == 0) {
170 return -1;
171 } else {
172 return -1;
173 }
174
175 }
176
177 }
178
179 int ftp_dir_handler (char *cmd_reply, int verbose) {
180
181 if (verbose == 1) {
182
183 if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
184 printf("--[ Server: Command Ok.\n");
185 return 0;
186 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
187 printf("--[ Server: Command successful.\n");
188 return 0;
189 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
190 printf("--[ Server: Command successful.\n");
191 return 0;
192 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
193 printf("--[ Server: Command successful.\n");
194 return 0;
195 } else if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
196 printf("--[ Server: Syntax Error.\n");
197 return 1;
198 } else if (strfnbytes(cmd_reply, PATH_CREATED, 3) == 0) {
199 printf("--[ Server: Directory Successfully Created.\n");
200 return 0;
201 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
202 printf("--[ Server: Syntax Error in Parameters.\n");
203 return 1;
204 } else if (strfnbytes(cmd_reply, FILE_NOT_FOUND, 3) == 0) {
205 printf("--[ Server: File Not Found.\n");
206 return 1;
207 } else if (strfnbytes(cmd_reply, ACTION_ABORTED, 3) == 0) {
208 printf("--[ Server: Requested action aborted.\n");
209 return 1;
210 } else if (strfnbytes(cmd_reply, FILE_ERR_NAME, 3) == 0) {
211 printf("--[ Server: File Name not allowed.\n");
212 return 1;
213 } else {
214 printf("--[ Server: Unknown reply.\n");
215 return 1;
216 }
217
218 } else {
219
220 if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
221 return 0;
222 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
223 return 0;
224 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
225 return 0;
226 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
227 return 0;
228 } else if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
229 return 1;
230 } else if (strfnbytes(cmd_reply, PATH_CREATED, 3) == 0) {
231 return 0;
232 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
233 return 1;
234 } else if (strfnbytes(cmd_reply, FILE_NOT_FOUND, 3) == 0) {
235 return 1;
236 } else if (strfnbytes(cmd_reply, ACTION_ABORTED, 3) == 0) {
237 return 1;
238 } else if (strfnbytes(cmd_reply, FILE_ERR_NAME, 3) == 0) {
239 return 1;
240 } else {
241 return 1;
242 }
243
244 }
245
246 }
247
248 int ftp_file_handler (char *cmd_reply, int verbose) {
249
250 if (verbose == 1) {
251
252 if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
253 printf("--[ Server: Command Ok.\n");
254 return 0;
255 } else if (strfnbytes(cmd_reply, ACTION_PEND, 3) == 0) {
256 printf("--[ Server: Command successful.\n");
257 return 0;
258 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
259 printf("--[ Server: Requested file action completed.\n");
260 return 0;
261 } else if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
262 printf("--[ Server: Syntax Error.\n");
263 return 1;
264 } else if (strfnbytes(cmd_reply, FILE_NOT_FOUND, 3) == 0) {
265 printf("--[ Server: File Not Found.\n");
266 return 1;
267 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
268 printf("--[ Server: Syntax Error in Parameters.\n");
269 return 1;
270 } else if (strfnbytes(cmd_reply, BAD_SEQ_CMD, 3) == 0) {
271 printf("--[ Server: File Not Found.\n");
272 return 1;
273 } else if (strfnbytes(cmd_reply, ACTION_ABORTED, 3) == 0) {
274 printf("--[ Server: Requested action aborted.\n");
275 return 1;
276 } else if (strfnbytes(cmd_reply, FILE_NOT_TAKEN, 3) == 0) {
277 printf("--[ Server: File busy.\n");
278 return 1;
279 } else if (strfnbytes(cmd_reply, FILE_ERR_NAME, 3) == 0) {
280 printf("--[ Server: File Name not allowed.\n");
281 return 1;
282 } else {
283 printf("--[ Server: Unknown reply.\n");
284 return 1;
285 }
286
287
288
289 } else {
290
291 if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
292 return 0;
293 } else if (strfnbytes(cmd_reply, ACTION_PEND, 3) == 0) {
294 return 0;
295 } else if (strfnbytes(cmd_reply, REQ_FILE_OK, 3) == 0) {
296 return 0;
297 } else if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
298 return 1;
299 } else if (strfnbytes(cmd_reply, FILE_NOT_FOUND, 3) == 0) {
300 return 1;
301 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
302 return 1;
303 } else if (strfnbytes(cmd_reply, BAD_SEQ_CMD, 3) == 0) {
304 return 1;
305 } else if (strfnbytes(cmd_reply, ACTION_ABORTED, 3) == 0) {
306 return 1;
307 } else if (strfnbytes(cmd_reply, FILE_NOT_TAKEN, 3) == 0) {
308 return 1;
309 } else if (strfnbytes(cmd_reply, FILE_ERR_NAME, 3) == 0) {
310 return 1;
311 } else {
312 return 1;
313 }
314
315
316 }
317
318 }
319
320 int ftp_port_handler (char *cmd_reply, int verbose) {
321
322 if (verbose == 1) {
323
324 if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
325 printf("--[ Server: Need an Account to Login.\n");
326 return -1;
327 } else if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
328 printf("--[ Server: OK!\n");
329 return 0;
330 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
331 printf("--[ Server: User Okay, need a Password.\n");
332 return -1;
333 } else if (strfnbytes(cmd_reply, SERVICE_NA, 3) == 0) {
334 printf("--[ Server: User not logged in.\n");
335 return -1;
336 } else {
337 printf("--[ Server: Unknown reply at the login process.\n");
338 return -1;
339 }
340
341 } else {
342
343 if (strfnbytes(cmd_reply, SYNTAX_ERR, 3) == 0) {
344 return -1;
345 } else if (strfnbytes(cmd_reply, CMD_OK, 3) == 0) {
346 return 0;
347 } else if (strfnbytes(cmd_reply, SYNTAX_ERR_P, 3) == 0) {
348 return -1;
349 } else if (strfnbytes(cmd_reply, SERVICE_NA, 3) == 0) {
350 return -1;
351 } else {
352 return -1;
353 }
354
355 }
356
357 }
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