1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
25 #include "replacements.h"
34 #include <sys/types.h>
39 int fileio_close(fileio_t
*fileio
);
40 int fileio_dispatch_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
);
42 int fileio_open_local(fileio_t
*fileio
)
44 fileio_local_t
*fileio_local
= malloc(sizeof(fileio_local_t
));
47 if ((fileio
->access
!= FILEIO_WRITE
) && (fileio
->access
!= FILEIO_READWRITE
))
49 if (stat(fileio
->url
, &fileio_local
->file_stat
) == -1)
52 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
,
53 "couldn't stat() %s: %s", fileio
->url
, strerror(errno
));
54 return ERROR_FILEIO_NOT_FOUND
;
57 if (S_ISDIR(fileio_local
->file_stat
.st_mode
))
60 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "%s is a directory", fileio
->url
);
61 return ERROR_FILEIO_NOT_FOUND
;
65 switch (fileio
->access
)
73 case FILEIO_READWRITE
:
79 case FILEIO_APPENDREAD
:
84 ERROR("BUG: access neither read, write nor readwrite");
85 return ERROR_INVALID_ARGUMENTS
;
88 if (fileio
->access
== FILEIO_READ
)
90 if (fileio_local
->file_stat
.st_size
== 0)
92 /* tried to open an empty file for reading */
94 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "empty file %s", fileio
->url
);
95 return ERROR_FILEIO_OPERATION_FAILED
;
99 /* win32 always opens in binary mode */
101 if (fileio
->type
== FILEIO_BINARY
)
107 if (!(fileio_local
->file
= fopen(fileio
->url
, access
)))
110 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "couldn't open %s", fileio
->url
);
111 return ERROR_FILEIO_OPERATION_FAILED
;
114 fileio
->location_private
= fileio_local
;
116 if ((fileio
->access
!= FILEIO_WRITE
) || (fileio
->access
== FILEIO_READWRITE
))
118 fileio
->size
= fileio_local
->file_stat
.st_size
;
128 int fileio_open(fileio_t
*fileio
, char *url
, enum fileio_access access
, enum fileio_type type
)
130 int retval
= ERROR_OK
;
131 char *resource_identifier
= NULL
;
133 /* try to identify file location */
134 if ((resource_identifier
= strstr(url
, "bootp://")) && (resource_identifier
== url
))
136 ERROR("bootp resource location isn't supported yet");
137 return ERROR_FILEIO_RESOURCE_TYPE_UNKNOWN
;
139 else if ((resource_identifier
= strstr(url
, "tftp://")) && (resource_identifier
== url
))
141 ERROR("tftp resource location isn't supported yet");
142 return ERROR_FILEIO_RESOURCE_TYPE_UNKNOWN
;
146 /* default to local files */
147 fileio
->location
= FILEIO_LOCAL
;
151 fileio
->access
= access
;
152 fileio
->url
= strdup(url
);
154 switch (fileio
->location
)
157 retval
= fileio_open_local(fileio
);
160 ERROR("BUG: should never get here");
164 if (retval
!= ERROR_OK
)
170 int fileio_close_local(fileio_t
*fileio
)
173 fileio_local_t
*fileio_local
= fileio
->location_private
;
175 if (fileio
->location_private
== NULL
)
177 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "couldn't close %s: ", fileio
->url
);
178 return ERROR_FILEIO_OPERATION_FAILED
;
181 if ((retval
= fclose(fileio_local
->file
)) != 0)
185 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "BUG: fileio_local->file not a valid file descriptor");
189 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "couldn't close %s: %s", fileio
->url
, strerror(errno
));
192 return ERROR_FILEIO_OPERATION_FAILED
;
195 free(fileio
->location_private
);
196 fileio
->location_private
= NULL
;
201 int fileio_close(fileio_t
*fileio
)
205 switch (fileio
->location
)
208 retval
= fileio_close_local(fileio
);
211 ERROR("BUG: should never get here");
212 retval
= ERROR_FILEIO_OPERATION_FAILED
;
215 if (retval
!= ERROR_OK
)
224 int fileio_seek_local(fileio_t
*fileio
, u32 position
)
227 fileio_local_t
*fileio_local
= fileio
->location_private
;
229 if ((retval
= fseek(fileio_local
->file
, position
, SEEK_SET
)) != 0)
231 snprintf(fileio
->error_str
, FILEIO_MAX_ERROR_STRING
, "couldn't seek file %s: %s", fileio
->url
, strerror(errno
));
232 return ERROR_FILEIO_OPERATION_FAILED
;
238 int fileio_seek(fileio_t
*fileio
, u32 position
)
240 switch (fileio
->location
)
243 return fileio_seek_local(fileio
, position
);
246 ERROR("BUG: should never get here");
252 int fileio_local_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
)
254 fileio_local_t
*fileio_local
= fileio
->location_private
;
256 *size_read
= fread(buffer
, 1, size
, fileio_local
->file
);
261 int fileio_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
)
263 switch (fileio
->location
)
266 return fileio_local_read(fileio
, size
, buffer
, size_read
);
269 ERROR("BUG: should never get here");
274 int fileio_read_u32(fileio_t
*fileio
, u32
*data
)
280 switch (fileio
->location
)
283 if ((retval
= fileio_local_read(fileio
, 4, buf
, &size_read
)) != ERROR_OK
)
285 *data
= be_to_h_u32(buf
);
288 ERROR("BUG: should never get here");
295 int fileio_local_fgets(fileio_t
*fileio
, u32 size
, u8
*buffer
)
297 fileio_local_t
*fileio_local
= fileio
->location_private
;
299 if( fgets(buffer
, size
, fileio_local
->file
) == NULL
)
300 return ERROR_FILEIO_OPERATION_FAILED
;
305 int fileio_fgets(fileio_t
*fileio
, u32 size
, u8
*buffer
)
307 switch (fileio
->location
)
310 return fileio_local_fgets(fileio
, size
, buffer
);
313 ERROR("BUG: should never get here");
318 int fileio_local_write(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_written
)
320 fileio_local_t
*fileio_local
= fileio
->location_private
;
322 *size_written
= fwrite(buffer
, 1, size
, fileio_local
->file
);
327 int fileio_write(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_written
)
331 switch (fileio
->location
)
334 retval
= fileio_local_write(fileio
, size
, buffer
, size_written
);
337 ERROR("BUG: should never get here");
341 if (retval
== ERROR_OK
)
342 fileio
->size
+= *size_written
;
347 int fileio_write_u32(fileio_t
*fileio
, u32 data
)
353 h_u32_to_be(buf
, data
);
355 switch (fileio
->location
)
358 if ((retval
= fileio_local_write(fileio
, 4, buf
, &size_written
)) != ERROR_OK
)
362 ERROR("BUG: should never get here");
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