1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * GNU General Public License for more details. *
21 * You should have received a copy of the GNU General Public License *
22 * along with this program; if not, write to the *
23 * Free Software Foundation, Inc., *
24 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 ***************************************************************************/
31 #include "configuration.h"
34 static inline int fileio_open_local(struct fileio
*fileio
)
38 switch (fileio
->access
)
46 case FILEIO_READWRITE
:
52 case FILEIO_APPENDREAD
:
56 LOG_ERROR("BUG: access neither read, write nor readwrite");
57 return ERROR_INVALID_ARGUMENTS
;
60 /* win32 always opens in binary mode */
62 if (fileio
->type
== FILEIO_BINARY
)
68 if (!(fileio
->file
= open_file_from_path (fileio
->url
, access
)))
70 LOG_ERROR("couldn't open %s", fileio
->url
);
71 return ERROR_FILEIO_OPERATION_FAILED
;
74 if ((fileio
->access
!= FILEIO_WRITE
) || (fileio
->access
== FILEIO_READWRITE
))
76 /* NB! Here we use fseek() instead of stat(), since stat is a
77 * more advanced operation that might not apply to e.g. a disk path
78 * that refers to e.g. a tftp client */
81 result
= fseek(fileio
->file
, 0, SEEK_END
);
83 fileio
->size
= ftell(fileio
->file
);
85 result2
= fseek(fileio
->file
, 0, SEEK_SET
);
87 if ((fileio
->size
< 0)||(result
< 0)||(result2
< 0))
90 return ERROR_FILEIO_OPERATION_FAILED
;
101 int fileio_open(struct fileio
*fileio
, const char *url
, enum fileio_access access
, enum fileio_type type
)
103 int retval
= ERROR_OK
;
106 fileio
->access
= access
;
107 fileio
->url
= strdup(url
);
109 retval
= fileio_open_local(fileio
);
114 static inline int fileio_close_local(struct fileio
*fileio
)
117 if ((retval
= fclose(fileio
->file
)) != 0)
121 LOG_ERROR("BUG: fileio_local->file not a valid file descriptor");
125 LOG_ERROR("couldn't close %s: %s", fileio
->url
, strerror(errno
));
128 return ERROR_FILEIO_OPERATION_FAILED
;
134 int fileio_close(struct fileio
*fileio
)
138 retval
= fileio_close_local(fileio
);
146 int fileio_seek(struct fileio
*fileio
, uint32_t position
)
149 if ((retval
= fseek(fileio
->file
, position
, SEEK_SET
)) != 0)
151 LOG_ERROR("couldn't seek file %s: %s", fileio
->url
, strerror(errno
));
152 return ERROR_FILEIO_OPERATION_FAILED
;
158 static inline int fileio_local_read(struct fileio
*fileio
, uint32_t size
, uint8_t *buffer
, uint32_t *size_read
)
160 *size_read
= fread(buffer
, 1, size
, fileio
->file
);
165 int fileio_read(struct fileio
*fileio
, uint32_t size
, uint8_t *buffer
, uint32_t *size_read
)
167 return fileio_local_read(fileio
, size
, buffer
, size_read
);
170 int fileio_read_u32(struct fileio
*fileio
, uint32_t *data
)
176 if ((retval
= fileio_local_read(fileio
, 4, buf
, &size_read
)) != ERROR_OK
)
178 *data
= be_to_h_u32(buf
);
183 static inline int fileio_local_fgets(struct fileio
*fileio
, uint32_t size
, char *buffer
)
185 if (fgets(buffer
, size
, fileio
->file
) == NULL
)
186 return ERROR_FILEIO_OPERATION_FAILED
;
191 int fileio_fgets(struct fileio
*fileio
, uint32_t size
, char *buffer
)
193 return fileio_local_fgets(fileio
, size
, buffer
);
196 static inline int fileio_local_write(struct fileio
*fileio
, uint32_t size
, const uint8_t *buffer
, uint32_t *size_written
)
198 *size_written
= fwrite(buffer
, 1, size
, fileio
->file
);
203 int fileio_write(struct fileio
*fileio
, uint32_t size
, const uint8_t *buffer
, uint32_t *size_written
)
207 retval
= fileio_local_write(fileio
, size
, buffer
, size_written
);
209 if (retval
== ERROR_OK
)
210 fileio
->size
+= *size_written
;
215 int fileio_write_u32(struct fileio
*fileio
, uint32_t data
)
218 uint32_t size_written
;
221 h_u32_to_be(buf
, data
);
223 if ((retval
= fileio_local_write(fileio
, 4, buf
, &size_written
)) != ERROR_OK
)
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