/*
- sftp_fs_memory.c
+ sftp_fs_memory.c
Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 2001 Pekka Riikonen
+ Copyright (C) 2001 - 2004 Pekka Riikonen
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
/* $Id$ */
/* XXX TODO Win32 support */
-#include "silcincludes.h"
+#include "silc.h"
#include "silcsftp.h"
#include "silcsftp_fs.h"
#include "sftp_util.h"
SilcUInt32 entry_count; /* Number of files and sub-directories */
struct MemFSEntryStruct *parent; /* non-NULL if `directory' is TRUE,
includes parent directory. */
- unsigned long created; /* Time of creation */
+ SilcUInt32 created; /* Time of creation */
char *name; /* Name of the entry */
char *data; /* Data of the entry */
unsigned int directory : 1; /* Set if this is directory */
int i;
/* Must be both write and exec permissions */
- if (check_perm &&
- !((dir->perm & SILC_SFTP_FS_PERM_WRITE) &&
+ if (check_perm &&
+ !((dir->perm & SILC_SFTP_FS_PERM_WRITE) &&
(dir->perm & SILC_SFTP_FS_PERM_EXEC)))
return FALSE;
if (!dir->entry) {
dir->entry = silc_calloc(3, sizeof(*entry));
+ if (!dir->entry)
+ return FALSE;
dir->entry[0] = entry;
dir->entry_count = 3;
entry->created = time(0);
dir->entry = silc_realloc(dir->entry, sizeof(*dir->entry) *
(dir->entry_count + 3));
+ if (!dir->entry)
+ return FALSE;
for (i = dir->entry_count + 1; i < dir->entry_count + 3; i++)
dir->entry[i] = NULL;
dir->entry[dir->entry_count] = entry;
return TRUE;
}
-/* Finds first occurence of entry named `name' under the directory `dir'.
+/* Finds first occurence of entry named `name' under the directory `dir'.
This does not check subdirectories recursively. */
static MemFSEntry mem_find_entry(MemFSEntry dir, const char *name,
int i;
handle = silc_calloc(1, sizeof(*handle));
+ if (!handle)
+ return NULL;
handle->fd = fd;
handle->entry = entry;
if (!fs->handles) {
fs->handles = silc_calloc(5, sizeof(*fs->handles));
+ if (!fs->handles)
+ return NULL;
fs->handles[0] = handle;
fs->handles_count = 5;
fs->handles = silc_realloc(fs->handles, sizeof(*fs->handles) *
(fs->handles_count + 5));
+ if (!fs->handles)
+ return NULL;
for (i = fs->handles_count + 1; i < fs->handles_count + 5; i++)
fs->handles[i] = NULL;
fs->handles[fs->handles_count] = handle;
MemFS fs;
fs = silc_calloc(1, sizeof(*fs));
+ if (!fs)
+ return NULL;
+
fs->root = silc_calloc(1, sizeof(*fs->root));
+ if (!fs->root) {
+ silc_free(fs);
+ return NULL;
+ }
+
fs->root->perm = perm;
fs->root_perm = perm;
fs->root->directory = TRUE;
fs->root->name = strdup(DIR_SEPARATOR);
filesystem = silc_calloc(1, sizeof(*filesystem));
- filesystem->fs =
- (struct SilcSFTPFilesystemOpsStruct *)&silc_sftp_fs_memory;
+ if (!filesystem) {
+ silc_free(fs->root);
+ silc_free(fs);
+ return NULL;
+ }
+
+ filesystem->fs = (struct SilcSFTPFilesystemOpsStruct *)&silc_sftp_fs_memory;
filesystem->fs_context = (void *)fs;
return filesystem;
MemFSEntry entry;
entry = silc_calloc(1, sizeof(*entry));
+ if (!entry)
+ return NULL;
+
entry->perm = perm;
entry->name = strdup(name);
entry->directory = TRUE;
ret = mem_del_entry(memfs->root, FALSE);
memfs->root = silc_calloc(1, sizeof(*memfs->root));
+ if (!memfs->root)
+ return FALSE;
+
memfs->root->perm = memfs->root_perm;
memfs->root->directory = TRUE;
memfs->root->name = strdup(DIR_SEPARATOR);
MemFSEntry entry;
entry = silc_calloc(1, sizeof(*entry));
+ if (!entry)
+ return FALSE;
+
entry->perm = perm;
entry->name = strdup(filename);
entry->data = strdup(realpath);
if (!filename)
return FALSE;
- return mem_del_entry_name(dir ? dir : memfs->root, filename,
+ return mem_del_entry_name(dir ? dir : memfs->root, filename,
strlen(filename), FALSE);
}
MemFSFileHandle h = (MemFSFileHandle)handle;
data = silc_calloc(4, sizeof(*data));
+ if (!data)
+ return NULL;
+
SILC_PUT32_MSB(h->handle, data);
*handle_len = 4;
-
return data;
}
-void mem_open(void *context, SilcSFTP sftp,
+void mem_open(void *context, SilcSFTP sftp,
const char *filename,
SilcSFTPFileOperation pflags,
SilcSFTPAttributes attrs,
if (entry->directory || !entry->data) {
(*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
return;
- }
+ }
/* Check for reading */
- if ((pflags & SILC_SFTP_FXF_READ) &&
+ if ((pflags & SILC_SFTP_FXF_READ) &&
!(entry->perm & SILC_SFTP_FS_PERM_READ)) {
- (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
callback_context);
return;
- }
+ }
/* Check for writing */
- if (((pflags & SILC_SFTP_FXF_WRITE) || (pflags & SILC_SFTP_FXF_APPEND)) &&
+ if (((pflags & SILC_SFTP_FXF_WRITE) || (pflags & SILC_SFTP_FXF_APPEND)) &&
!(entry->perm & SILC_SFTP_FS_PERM_WRITE)) {
- (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
callback_context);
return;
}
flags |= O_APPEND;
/* Attempt to open the file for real. */
- fd = silc_file_open_mode(entry->data + 7, flags,
+ fd = silc_file_open_mode(entry->data + 7, flags,
(attrs->flags & SILC_SFTP_ATTR_PERMISSIONS ?
attrs->permissions : 0600));
if (fd == -1) {
/* File opened, return handle */
handle = mem_create_handle(fs, fd, entry);
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (SilcSFTPHandle)handle,
- callback_context);
+ if (handle)
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (SilcSFTPHandle)handle,
+ callback_context);
+ else
+ (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
+ callback_context);
}
void mem_close(void *context, SilcSFTP sftp,
if (h->fd != -1) {
ret = silc_file_close(h->fd);
if (ret == -1) {
- (*callback)(sftp, silc_sftp_map_errno(errno), NULL, NULL,
+ (*callback)(sftp, silc_sftp_map_errno(errno), NULL, NULL,
callback_context);
return;
}
void mem_read(void *context, SilcSFTP sftp,
SilcSFTPHandle handle,
- SilcUInt64 offset,
+ SilcUInt64 offset,
SilcUInt32 len,
SilcSFTPDataCallback callback,
void *callback_context)
len = 32768;
data = silc_malloc(len);
+ if (!data) {
+ (*callback)(sftp, SILC_SFTP_STATUS_EOF, NULL, 0, callback_context);
+ return;
+ }
lseek(h->fd, (off_t)offset, SEEK_SET);
/* Attempt to read */
}
/* Return data */
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (const unsigned char *)data,
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (const unsigned char *)data,
ret, callback_context);
silc_free(data);
/* Attempt to write */
ret = silc_file_write(h->fd, data, data_len);
if (ret <= 0) {
- (*callback)(sftp, silc_sftp_map_errno(errno), NULL, NULL,
+ (*callback)(sftp, silc_sftp_map_errno(errno), NULL, NULL,
callback_context);
return;
}
void *callback_context)
{
/* Remove is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
void *callback_context)
{
/* Rename is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
void *callback_context)
{
/* Mkdir is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
void *callback_context)
{
/* Rmdir is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
if (!entry->directory) {
(*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
return;
- }
+ }
/* Must be read permissions to open a directory */
if (!(entry->perm & SILC_SFTP_FS_PERM_READ)) {
- (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
callback_context);
return;
}
/* Directory opened, return handle */
handle = mem_create_handle(fs, 0, entry);
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (SilcSFTPHandle)handle,
- callback_context);
+ if (handle)
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (SilcSFTPHandle)handle,
+ callback_context);
+ else
+ (*callback)(sftp, SILC_SFTP_STATUS_PERMISSION_DENIED, NULL,
+ callback_context);
}
void mem_readdir(void *context, SilcSFTP sftp,
}
name = silc_calloc(1, sizeof(*name));
+ if (!name) {
+ (*callback)(sftp, SILC_SFTP_STATUS_EOF, NULL, callback_context);
+ return;
+ }
for (i = h->fd; i < 100 + h->fd; i++) {
if (i >= h->entry->entry_count)
break;
filesize = sizeof(*entry);
memset(long_name, 0, sizeof(long_name));
- date = ctime(&entry->created);
+ date = (char *)silc_get_time(entry->created);
if (strrchr(date, ':'))
*strrchr(date, ':') = '\0';
- if (!entry->directory)
+ if (!entry->directory) {
filesize = silc_file_size(entry->data + 7);
+ memset(&stats, 0, sizeof(stats));
+ stat(entry->data + 7, &stats);
+ }
/* Long name format is:
drwx------ 1 324210 Apr 8 08:40 mail/
1234567890 123 12345678 123456789012 */
- snprintf(long_name, sizeof(long_name) - 1,
+ silc_snprintf(long_name, sizeof(long_name) - 1,
"%c%c%c%c------ %3d %8llu %12s %s%s",
(entry->directory ? 'd' : '-'),
((entry->perm & SILC_SFTP_FS_PERM_READ) ? 'r' : '-'),
((entry->perm & SILC_SFTP_FS_PERM_WRITE) ? 'w' : '-'),
((entry->perm & SILC_SFTP_FS_PERM_EXEC) ? 'x' : '-'),
(entry->directory ? (int)entry->entry_count : 1),
- filesize, date, entry->name,
- (entry->directory ? "/" :
+#ifndef SILC_WIN32
+ (unsigned long long)filesize,
+#else
+ (unsigned long)filesize,
+#endif
+ date, entry->name,
+ (entry->directory ? "/" :
((entry->perm & SILC_SFTP_FS_PERM_EXEC) ? "*" : "")));
/* Add attributes */
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs) {
+ (*callback)(sftp, SILC_SFTP_STATUS_EOF, NULL, callback_context);
+ return;
+ }
attrs->flags = (SILC_SFTP_ATTR_SIZE |
SILC_SFTP_ATTR_UIDGID);
attrs->size = filesize;
if (entry->directory || !entry->data) {
(*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
return;
- }
+ }
/* Get real stat */
ret = stat(entry->data + 7, &stats);
}
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs) {
+ (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
+ return;
+ }
attrs->flags = (SILC_SFTP_ATTR_SIZE |
SILC_SFTP_ATTR_UIDGID |
SILC_SFTP_ATTR_ACMODTIME);
attrs->mtime = stats.st_mtime;
/* Return attributes */
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
callback_context);
silc_sftp_attr_free(attrs);
if (entry->directory || !entry->data) {
(*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
return;
- }
+ }
/* Get real stat */
#ifndef SILC_WIN32
}
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs) {
+ (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
+ return;
+ }
attrs->flags = (SILC_SFTP_ATTR_SIZE |
SILC_SFTP_ATTR_UIDGID |
SILC_SFTP_ATTR_ACMODTIME);
attrs->mtime = stats.st_mtime;
/* Return attributes */
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
callback_context);
silc_sftp_attr_free(attrs);
if (h->entry->directory || !h->entry->data) {
(*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
return;
- }
+ }
/* Get real stat */
ret = fstat(h->fd, &stats);
}
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs) {
+ (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
+ return;
+ }
attrs->flags = (SILC_SFTP_ATTR_SIZE |
SILC_SFTP_ATTR_UIDGID |
SILC_SFTP_ATTR_ACMODTIME);
attrs->mtime = stats.st_mtime;
/* Return attributes */
- (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPAttributes)attrs,
callback_context);
silc_sftp_attr_free(attrs);
}
-
+
void mem_setstat(void *context, SilcSFTP sftp,
const char *path,
SilcSFTPAttributes attrs,
void *callback_context)
{
/* Setstat is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
void *callback_context)
{
/* Fsetstat is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
void *callback_context)
{
/* Symlink is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, NULL,
callback_context);
}
path = (const char *)DIR_SEPARATOR;
realpath = mem_expand_path(fs->root, path);
- if (!realpath) {
- (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
- return;
- }
+ if (!realpath)
+ goto fail;
name = silc_calloc(1, sizeof(*name));
+ if (!name)
+ goto fail;
+
name->filename = silc_calloc(1, sizeof(*name->filename));
+ if (!name->filename)
+ goto fail;
name->filename[0] = realpath;
name->long_filename = silc_calloc(1, sizeof(*name->long_filename));
+ if (!name->long_filename)
+ goto fail;
name->long_filename[0] = realpath;
name->attrs = silc_calloc(1, sizeof(*name->attrs));
+ if (!name->attrs)
+ goto fail;
name->attrs[0] = silc_calloc(1, sizeof(*name->attrs[0]));
+ if (!name->attrs[0])
+ goto fail;
name->count = 1;
- (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, (const SilcSFTPName)name,
+ (*callback)(sftp, SILC_SFTP_STATUS_OK, (const SilcSFTPName)name,
callback_context);
silc_sftp_name_free(name);
+ return;
+
+ fail:
+ (*callback)(sftp, SILC_SFTP_STATUS_FAILURE, NULL, callback_context);
}
void mem_extended(void *context, SilcSFTP sftp,
void *callback_context)
{
/* Extended is not supported */
- (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, 0,
+ (*callback)(sftp, SILC_SFTP_STATUS_OP_UNSUPPORTED, NULL, 0,
callback_context);
}
projects / silc.git / blobdiff