* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#include "config.h"
#endif
-#include "types.h"
-#include "replacements.h"
#include "log.h"
-
+#include "configuration.h"
#include "fileio.h"
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <ctype.h>
-
-int fileio_close(fileio_t *fileio);
-int fileio_dispatch_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read);
-
-int fileio_open_local(fileio_t *fileio)
+static inline int fileio_open_local(struct fileio *fileio)
{
- fileio_local_t *fileio_local = malloc(sizeof(fileio_local_t));
- char access[4];
-
- fileio->location_private = fileio_local;
-
- if ((fileio->access != FILEIO_WRITE) && (fileio->access != FILEIO_READWRITE))
- {
- if (stat(fileio->url, &fileio_local->file_stat) == -1)
- {
- free(fileio_local);
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING,
- "couldn't stat() %s: %s", fileio->url, strerror(errno));
- return ERROR_FILEIO_NOT_FOUND;
- }
-
- if (S_ISDIR(fileio_local->file_stat.st_mode))
- {
- free(fileio_local);
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "%s is a directory", fileio->url);
- return ERROR_FILEIO_NOT_FOUND;
- }
- }
-
+ char file_access[4];
+
switch (fileio->access)
{
case FILEIO_READ:
- strcpy(access, "r");
+ strcpy(file_access, "r");
break;
case FILEIO_WRITE:
- strcpy(access, "w");
+ strcpy(file_access, "w");
break;
case FILEIO_READWRITE:
- strcpy(access, "w+");
+ strcpy(file_access, "w+");
break;
case FILEIO_APPEND:
- strcpy(access, "a");
+ strcpy(file_access, "a");
break;
case FILEIO_APPENDREAD:
- strcpy(access, "a+");
+ strcpy(file_access, "a+");
break;
default:
- free(fileio_local);
- ERROR("BUG: access neither read, write nor readwrite");
+ LOG_ERROR("BUG: access neither read, write nor readwrite");
return ERROR_INVALID_ARGUMENTS;
}
-
- if (fileio->access == FILEIO_READ)
- {
- if (fileio_local->file_stat.st_size == 0)
- {
- /* tried to open an empty file for reading */
- free(fileio_local);
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "empty file %s", fileio->url);
- return ERROR_FILEIO_OPERATION_FAILED;
- }
- }
/* win32 always opens in binary mode */
#ifndef _WIN32
if (fileio->type == FILEIO_BINARY)
#endif
{
- strcat(access, "b");
+ strcat(file_access, "b");
}
-
- if (!(fileio_local->file = fopen(fileio->url, access)))
+
+ if (!(fileio->file = open_file_from_path (fileio->url, file_access)))
{
- free(fileio_local);
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "couldn't open %s", fileio->url);
+ LOG_ERROR("couldn't open %s", fileio->url);
return ERROR_FILEIO_OPERATION_FAILED;
}
-
+
if ((fileio->access != FILEIO_WRITE) || (fileio->access == FILEIO_READWRITE))
{
- fileio->size = fileio_local->file_stat.st_size;
+ /* NB! Here we use fseek() instead of stat(), since stat is a
+ * more advanced operation that might not apply to e.g. a disk path
+ * that refers to e.g. a tftp client */
+ int result, result2;
+
+ result = fseek(fileio->file, 0, SEEK_END);
+
+ fileio->size = ftell(fileio->file);
+
+ result2 = fseek(fileio->file, 0, SEEK_SET);
+
+ if ((fileio->size < 0)||(result < 0)||(result2 < 0))
+ {
+ fileio_close(fileio);
+ return ERROR_FILEIO_OPERATION_FAILED;
+ }
}
else
{
fileio->size = 0x0;
}
-
+
return ERROR_OK;
}
-int fileio_open(fileio_t *fileio, char *url, enum fileio_access access, enum fileio_type type)
+int fileio_open(struct fileio *fileio, const char *url, enum fileio_access access_type, enum fileio_type type)
{
int retval = ERROR_OK;
- char *resource_identifier = NULL;
- /* try to identify file location */
- if ((resource_identifier = strstr(url, "bootp://")) && (resource_identifier == url))
- {
- ERROR("bootp resource location isn't supported yet");
- return ERROR_FILEIO_RESOURCE_TYPE_UNKNOWN;
- }
- else if ((resource_identifier = strstr(url, "tftp://")) && (resource_identifier == url))
- {
- ERROR("tftp resource location isn't supported yet");
- return ERROR_FILEIO_RESOURCE_TYPE_UNKNOWN;
- }
- else
- {
- /* default to local files */
- fileio->location = FILEIO_LOCAL;
- }
-
fileio->type = type;
- fileio->access = access;
+ fileio->access = access_type;
fileio->url = strdup(url);
-
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- retval = fileio_open_local(fileio);
- break;
- default:
- ERROR("BUG: should never get here");
- exit(-1);
- }
-
- if (retval != ERROR_OK)
- return retval;
-
- return ERROR_OK;
+
+ retval = fileio_open_local(fileio);
+
+ return retval;
}
-int fileio_close_local(fileio_t *fileio)
+static inline int fileio_close_local(struct fileio *fileio)
{
int retval;
- fileio_local_t *fileio_local = fileio->location_private;
-
- if ((retval = fclose(fileio_local->file)) != 0)
+ if ((retval = fclose(fileio->file)) != 0)
{
if (retval == EBADF)
{
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "BUG: fileio_local->file not a valid file descriptor");
+ LOG_ERROR("BUG: fileio_local->file not a valid file descriptor");
}
else
{
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "couldn't close %s: %s", fileio->url, strerror(errno));
+ LOG_ERROR("couldn't close %s: %s", fileio->url, strerror(errno));
}
return ERROR_FILEIO_OPERATION_FAILED;
}
-
- free(fileio->location_private);
-
+
return ERROR_OK;
}
-int fileio_close(fileio_t *fileio)
+int fileio_close(struct fileio *fileio)
{
int retval;
-
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- retval = fileio_close_local(fileio);
- break;
- default:
- ERROR("BUG: should never get here");
- retval = ERROR_FILEIO_OPERATION_FAILED;
- }
-
- if (retval != ERROR_OK)
- return retval;
-
- free(fileio->url);
-
- return ERROR_OK;
+
+ retval = fileio_close_local(fileio);
+
+ free((void*)fileio->url);
+ fileio->url = NULL;
+
+ return retval;
}
-int fileio_seek_local(fileio_t *fileio, u32 position)
+int fileio_seek(struct fileio *fileio, size_t position)
{
int retval;
- fileio_local_t *fileio_local = fileio->location_private;
-
- if ((retval = fseek(fileio_local->file, position, SEEK_SET)) != 0)
+ if ((retval = fseek(fileio->file, position, SEEK_SET)) != 0)
{
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "couldn't seek file %s: %s", fileio->url, strerror(errno));
+ LOG_ERROR("couldn't seek file %s: %s", fileio->url, strerror(errno));
return ERROR_FILEIO_OPERATION_FAILED;
}
-
+
return ERROR_OK;
}
-int fileio_seek(fileio_t *fileio, u32 position)
+static int fileio_local_read(struct fileio *fileio,
+ size_t size, void *buffer, size_t *size_read)
{
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- return fileio_seek_local(fileio, position);
- break;
- default:
- ERROR("BUG: should never get here");
- }
-
- return ERROR_OK;
+ ssize_t retval = fread(buffer, 1, size, fileio->file);
+ *size_read = (retval >= 0) ? retval : 0;
+ return (retval < 0) ? retval : ERROR_OK;
}
-int fileio_local_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read)
+int fileio_read(struct fileio *fileio, size_t size, void *buffer,
+ size_t *size_read)
{
- fileio_local_t *fileio_local = fileio->location_private;
-
- *size_read = fread(buffer, 1, size, fileio_local->file);
-
- return ERROR_OK;
+ return fileio_local_read(fileio, size, buffer, size_read);
}
-int fileio_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read)
+int fileio_read_u32(struct fileio *fileio, uint32_t *data)
{
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- return fileio_local_read(fileio, size, buffer, size_read);
- break;
- default:
- ERROR("BUG: should never get here");
- exit(-1);
- }
+ uint8_t buf[4];
+ size_t size_read;
+ int retval = fileio_local_read(fileio, sizeof(uint32_t), buf, &size_read);
+ if (ERROR_OK == retval && sizeof(uint32_t) != size_read)
+ retval = -EIO;
+ if (ERROR_OK == retval)
+ *data = be_to_h_u32(buf);
+ return retval;
}
-int fileio_read_u32(fileio_t *fileio, u32 *data)
+static int fileio_local_fgets(struct fileio *fileio,
+ size_t size, void *buffer)
{
- u8 buf[4];
- u32 size_read;
- int retval;
-
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- if ((retval = fileio_local_read(fileio, 4, buf, &size_read)) != ERROR_OK)
- return retval;
- *data = be_to_h_u32(buf);
- break;
- default:
- ERROR("BUG: should never get here");
- exit(-1);
- }
-
+ if (fgets(buffer, size, fileio->file) == NULL)
+ return ERROR_FILEIO_OPERATION_FAILED;
+
return ERROR_OK;
}
-int fileio_local_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written)
+int fileio_fgets(struct fileio *fileio, size_t size, void *buffer)
{
- fileio_local_t *fileio_local = fileio->location_private;
-
- *size_written = fwrite(buffer, 1, size, fileio_local->file);
-
- return ERROR_OK;
+ return fileio_local_fgets(fileio, size, buffer);
}
-int fileio_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written)
+static int fileio_local_write(struct fileio *fileio,
+ size_t size, const void *buffer, size_t *size_written)
{
- int retval;
-
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- retval = fileio_local_write(fileio, size, buffer, size_written);
- break;
- default:
- ERROR("BUG: should never get here");
- exit(-1);
- }
-
+ ssize_t retval = fwrite(buffer, 1, size, fileio->file);
+ *size_written = (retval >= 0) ? retval : 0;
+ return (retval < 0) ? retval : ERROR_OK;
+}
+
+int fileio_write(struct fileio *fileio,
+ size_t size, const void *buffer, size_t *size_written)
+{
+ int retval = fileio_local_write(fileio, size, buffer, size_written);
if (retval == ERROR_OK)
fileio->size += *size_written;
-
- return retval;;
+ return retval;
}
-int fileio_write_u32(fileio_t *fileio, u32 data)
+int fileio_write_u32(struct fileio *fileio, uint32_t data)
{
- u8 buf[4];
- u32 size_written;
- int retval;
-
+ uint8_t buf[4];
h_u32_to_be(buf, data);
-
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- if ((retval = fileio_local_write(fileio, 4, buf, &size_written)) != ERROR_OK)
- return retval;
- break;
- default:
- ERROR("BUG: should never get here");
- }
-
- return ERROR_OK;
+
+ size_t size_written;
+ int retval = fileio_write(fileio, 4, buf, &size_written);
+ if (ERROR_OK == retval && size_written != sizeof(uint32_t))
+ retval = -EIO;
+
+ return retval;
}
projects / fw / openocd / blobdiff