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(fileio_t *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(fileio_t *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(fileio_t *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(fileio_t *fileio)
138 retval = fileio_close_local(fileio);
146 int fileio_seek(fileio_t *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(fileio_t *fileio, uint32_t size, uint8_t *buffer, uint32_t *size_read)
160 *size_read = fread(buffer, 1, size, fileio->file);
165 int fileio_read(fileio_t *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(fileio_t *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(fileio_t *fileio, uint32_t size, char *buffer)
185 if (fgets(buffer, size, fileio->file) == NULL)
186 return ERROR_FILEIO_OPERATION_FAILED;
191 int fileio_fgets(fileio_t *fileio, uint32_t size, char *buffer)
193 return fileio_local_fgets(fileio, size, buffer);
196 static inline int fileio_local_write(fileio_t *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(fileio_t *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(fileio_t *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)