2 Unix SMB/CIFS implementation.
5 Copyright (C) Jelmer Vernooij 2003
6 Based on iconv/icon_prog.c from the GNU C Library,
7 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 static int process_block (smb_iconv_t cd
, const char *addr
, size_t len
, FILE *output
)
28 #define OUTBUF_SIZE 32768
29 const char *start
= addr
;
30 char outbuf
[OUTBUF_SIZE
];
39 n
= smb_iconv (cd
, &addr
, &len
, &outptr
, &outlen
);
43 /* We have something to write out. */
44 int errno_save
= errno
;
46 if (fwrite (outbuf
, 1, outptr
- outbuf
, output
)
47 < (size_t) (outptr
- outbuf
)
50 /* Error occurred while printing the result. */
51 DEBUG (0, ("conversion stopped due to problem in writing the output"));
60 /* iconv() ran into a problem. */
64 DEBUG(0,("illegal input sequence at position %ld",
65 (long) (addr
- start
)));
69 incomplete character or shift sequence at end of buffer"));
72 DEBUG(0, ("internal error (illegal descriptor)"));
75 DEBUG(0, ("unknown iconv() error %d", errno
));
87 static int process_fd (iconv_t cd
, int fd
, FILE *output
)
89 /* we have a problem with reading from a descriptor since we must not
90 provide the iconv() function an incomplete character or shift
91 sequence at the end of the buffer. Since we have to deal with
92 arbitrary encodings we must read the whole text in a buffer and
93 process it in one step. */
94 static char *inbuf
= NULL
;
95 static size_t maxlen
= 0;
99 while (actlen
< maxlen
)
101 ssize_t n
= read (fd
, inptr
, maxlen
- actlen
);
104 /* No more text to read. */
109 /* Error while reading. */
110 DEBUG(0, ("error while reading the input"));
118 if (actlen
== maxlen
)
124 /* Increase the buffer. */
125 new_inbuf
= (char *) realloc (inbuf
, maxlen
+ 32768);
126 if (new_inbuf
== NULL
)
128 DEBUG(0, ("unable to allocate buffer for input"));
133 inptr
= inbuf
+ actlen
;
137 n
= read (fd
, inptr
, maxlen
- actlen
);
140 /* No more text to read. */
145 /* Error while reading. */
146 DEBUG(0, ("error while reading the input"));
153 while (actlen
< maxlen
);
156 /* Break again so we leave both loops. */
160 /* Now we have all the input in the buffer. Process it in one run. */
161 return process_block (cd
, inbuf
, actlen
, output
);
166 int main(int argc
, char *argv
[])
168 const char *file
= NULL
;
172 const char *preload_modules
[] = {NULL
, NULL
};
177 /* make sure the vars that get altered (4th field) are in
178 a fixed location or certain compilers complain */
180 struct poptOption long_options
[] = {
182 { "from-code", 'f', POPT_ARG_STRING
, &from
, 0, "Encoding of original text" },
183 { "to-code", 't', POPT_ARG_STRING
, &to
, 0, "Encoding for output" },
184 { "output", 'o', POPT_ARG_STRING
, &output
, 0, "Write output to this file" },
185 { "preload-modules", 'p', POPT_ARG_STRING
, &preload_modules
[0], 0, "Modules to load" },
191 pc
= poptGetContext("smbiconv", argc
, (const char **) argv
,
194 poptSetOtherOptionHelp(pc
, "[FILE] ...");
196 while(poptGetNextOpt(pc
) != -1);
198 if (preload_modules
[0]) smb_load_modules(preload_modules
);
201 out
= fopen(output
, "w");
204 DEBUG(0, ("Can't open output file '%s': %s, exiting...\n", output
, strerror(errno
)));
209 cd
= smb_iconv_open(to
, from
);
211 DEBUG(0,("unable to find from or to encoding, exiting...\n"));
215 while((file
= poptGetArg(pc
))) {
216 if(strcmp(file
, "-") == 0) fd
= 0;
218 fd
= open(file
, O_RDONLY
);
221 DEBUG(0, ("Can't open input file '%s': %s, ignoring...\n", file
, strerror(errno
)));
226 /* Loop thru all arguments */
227 process_fd(cd
, fd
, out
);