mirror of
https://github.com/sheumann/hush.git
synced 2024-12-23 05:29:58 +00:00
71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* io_manager.c --- the I/O manager abstraction
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
#if HAVE_SYS_STAT_H
|
|
#include <sys/stat.h>
|
|
#endif
|
|
#if HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#include "ext2_fs.h"
|
|
#include "ext2fs.h"
|
|
|
|
errcode_t io_channel_set_options(io_channel channel, const char *opts)
|
|
{
|
|
errcode_t retval = 0;
|
|
char *next, *ptr, *options, *arg;
|
|
|
|
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
|
|
|
|
if (!opts)
|
|
return 0;
|
|
|
|
if (!channel->manager->set_option)
|
|
return EXT2_ET_INVALID_ARGUMENT;
|
|
|
|
options = malloc(strlen(opts)+1);
|
|
if (!options)
|
|
return EXT2_ET_NO_MEMORY;
|
|
strcpy(options, opts);
|
|
ptr = options;
|
|
|
|
while (ptr && *ptr) {
|
|
next = strchr(ptr, '&');
|
|
if (next)
|
|
*next++ = 0;
|
|
|
|
arg = strchr(ptr, '=');
|
|
if (arg)
|
|
*arg++ = 0;
|
|
|
|
retval = (channel->manager->set_option)(channel, ptr, arg);
|
|
if (retval)
|
|
break;
|
|
ptr = next;
|
|
}
|
|
free(options);
|
|
return retval;
|
|
}
|
|
|
|
errcode_t io_channel_write_byte(io_channel channel, unsigned long offset,
|
|
int count, const void *data)
|
|
{
|
|
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
|
|
|
|
if (channel->manager->write_byte)
|
|
return channel->manager->write_byte(channel, offset,
|
|
count, data);
|
|
|
|
return EXT2_ET_UNIMPLEMENTED;
|
|
}
|