X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fhelper%2Ffileio.c;h=47494dfcd8e412974c457ac628689d264536c27c;hp=3a760cd82f8ba042c51e931fd35d9ed6a52a9d8c;hb=bcaf775fc10d88d2c63c06bafada141895318b34;hpb=237e894805dd757cc24029af1b4b1e824c51712b
diff --git a/src/helper/fileio.c b/src/helper/fileio.c
index 3a760cd82f..47494dfcd8 100644
--- a/src/helper/fileio.c
+++ b/src/helper/fileio.c
@@ -2,6 +2,12 @@
* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2007,2008 Ãyvind 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 *
@@ -13,270 +19,251 @@
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * along with this program. If not, see . *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include "types.h"
-#include "replacements.h"
#include "log.h"
-
+#include "configuration.h"
#include "fileio.h"
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
+struct fileio {
+ char *url;
+ size_t size;
+ enum fileio_type type;
+ enum fileio_access access;
+ FILE *file;
+};
-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_close_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;
- }
+ int retval = fclose(fileio->file);
+ if (retval != 0) {
+ if (retval == EBADF)
+ LOG_ERROR("BUG: fileio->file not a valid file descriptor");
+ else
+ LOG_ERROR("couldn't close %s: %s", fileio->url, strerror(errno));
+
+ return ERROR_FILEIO_OPERATION_FAILED;
}
-
- switch (fileio->access)
- {
+
+ return ERROR_OK;
+}
+
+static inline int fileio_open_local(struct fileio *fileio)
+{
+ char file_access[4];
+ ssize_t file_size;
+
+ 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");
- return ERROR_INVALID_ARGUMENTS;
+ LOG_ERROR("BUG: access neither read, write nor readwrite");
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
-
- 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)
- strcat(access, "b");
-
- if (!(fileio_local->file = fopen(fileio->url, access)))
- {
- free(fileio_local);
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "couldn't open %s", fileio->url);
+#endif
+ strcat(file_access, "b");
+
+ fileio->file = open_file_from_path(fileio->url, file_access);
+ if (!fileio->file) {
+ 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;
- }
- else
- {
- fileio->size = 0x0;
+
+ file_size = 0;
+
+ if ((fileio->access != FILEIO_WRITE) || (fileio->access == FILEIO_READWRITE)) {
+ /* 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);
+
+ file_size = ftell(fileio->file);
+
+ result2 = fseek(fileio->file, 0, SEEK_SET);
+
+ if ((file_size < 0) || (result < 0) || (result2 < 0)) {
+ fileio_close_local(fileio);
+ return ERROR_FILEIO_OPERATION_FAILED;
+ }
}
-
+
+ fileio->size = file_size;
+
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->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)
+ int retval;
+ struct fileio *tmp;
+
+ tmp = malloc(sizeof(struct fileio));
+
+ tmp->type = type;
+ tmp->access = access_type;
+ tmp->url = strdup(url);
+
+ retval = fileio_open_local(tmp);
+
+ if (retval != ERROR_OK) {
+ free(tmp->url);
+ free(tmp);
return retval;
-
+ }
+
+ *fileio = tmp;
+
return ERROR_OK;
}
-int fileio_close_local(fileio_t *fileio)
+int fileio_close(struct fileio *fileio)
{
int retval;
- fileio_local_t *fileio_local = fileio->location_private;
-
- if ((retval = fclose(fileio_local->file)) != 0)
- {
- if (retval == EBADF)
- {
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "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));
- }
- return ERROR_FILEIO_OPERATION_FAILED;
- }
-
- free(fileio->location_private);
-
- return ERROR_OK;
+ retval = fileio_close_local(fileio);
+
+ free(fileio->url);
+ free(fileio);
+
+ return retval;
}
-int fileio_close(fileio_t *fileio)
+int fileio_seek(struct fileio *fileio, size_t position)
{
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;
+
+ retval = fseek(fileio->file, position, SEEK_SET);
+
+ if (retval != 0) {
+ LOG_ERROR("couldn't seek file %s: %s", fileio->url, strerror(errno));
+ return ERROR_FILEIO_OPERATION_FAILED;
}
-
- if (retval != ERROR_OK)
- return retval;
-
- free(fileio->url);
-
+
return ERROR_OK;
}
-int fileio_seek_local(fileio_t *fileio, u32 position)
+static int fileio_local_read(struct fileio *fileio, size_t size, void *buffer,
+ size_t *size_read)
+{
+ ssize_t retval;
+
+ retval = fread(buffer, 1, size, fileio->file);
+ *size_read = (retval >= 0) ? retval : 0;
+
+ return (retval < 0) ? retval : ERROR_OK;
+}
+
+int fileio_read(struct fileio *fileio, size_t size, void *buffer,
+ size_t *size_read)
+{
+ return fileio_local_read(fileio, size, buffer, size_read);
+}
+
+int fileio_read_u32(struct fileio *fileio, uint32_t *data)
{
int retval;
- fileio_local_t *fileio_local = fileio->location_private;
-
- if ((retval = fseek(fileio_local->file, position, SEEK_SET)) != 0)
- {
- snprintf(fileio->error_str, FILEIO_MAX_ERROR_STRING, "couldn't seek file %s: %s", fileio->url, strerror(errno));
+ uint8_t buf[4];
+ size_t size_read;
+
+ 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;
+}
+
+static int fileio_local_fgets(struct fileio *fileio, size_t size, void *buffer)
+{
+ if (fgets(buffer, size, fileio->file) == NULL)
return ERROR_FILEIO_OPERATION_FAILED;
- }
-
+
return ERROR_OK;
}
-int fileio_seek(fileio_t *fileio, u32 position)
+int fileio_fgets(struct fileio *fileio, size_t size, void *buffer)
{
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- return fileio_seek_local(fileio, position);
- break;
- default:
- ERROR("BUG: should never get here");
- }
-
- return ERROR_OK;
+ return fileio_local_fgets(fileio, size, buffer);
}
-int fileio_local_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read)
+static int fileio_local_write(struct fileio *fileio, size_t size,
+ const void *buffer, size_t *size_written)
{
- fileio_local_t *fileio_local = fileio->location_private;
-
- *size_read = fread(buffer, 1, size, fileio_local->file);
-
- return ERROR_OK;
+ ssize_t retval;
+
+ retval = fwrite(buffer, 1, size, fileio->file);
+ *size_written = (retval >= 0) ? retval : 0;
+
+ return (retval < 0) ? retval : ERROR_OK;
}
-int fileio_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read)
+int fileio_write(struct fileio *fileio, size_t size, const void *buffer,
+ size_t *size_written)
{
- 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);
- }
+ int retval;
+
+ retval = fileio_local_write(fileio, size, buffer, size_written);
+
+ if (retval == ERROR_OK)
+ fileio->size += *size_written;
+
+ return retval;
}
-int fileio_local_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written)
+int fileio_write_u32(struct fileio *fileio, uint32_t data)
{
- fileio_local_t *fileio_local = fileio->location_private;
-
- *size_written = fwrite(buffer, 1, size, fileio_local->file);
-
- return ERROR_OK;
+ int retval;
+ uint8_t buf[4];
+ h_u32_to_be(buf, data);
+ size_t size_written;
+
+ retval = fileio_write(fileio, 4, buf, &size_written);
+
+ if (ERROR_OK == retval && size_written != sizeof(uint32_t))
+ retval = -EIO;
+
+ return retval;
}
-int fileio_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written)
+/**
+ * FIX!!!!
+ *
+ * For now this can not fail, but that's because a seek was executed
+ * on startup.
+ *
+ * Avoiding the seek on startup opens up for using streams.
+ *
+ */
+int fileio_size(struct fileio *fileio, size_t *size)
{
- switch (fileio->location)
- {
- case FILEIO_LOCAL:
- return fileio_local_write(fileio, size, buffer, size_written);
- break;
- default:
- ERROR("BUG: should never get here");
- }
-
+ *size = fileio->size;
+
return ERROR_OK;
}