/* Open a regular file as an affile.
* Can only be a raw file...
*/
AFFILE *af_freopen(FILE *file)
{
if(!aff_initialized) af_initialize();
AFFILE *af = (AFFILE *)calloc(sizeof(AFFILE),1);
af->v = &vnode_raw;
af->image_sectorsize = 512; // default
raw_freopen(af,file);
return af;
}
/* Open a regular file as an affile */
AFFILE *af_popen(const char *command,const char *type)
{
if(!aff_initialized) af_initialize();
AFFILE *af = (AFFILE *)calloc(sizeof(AFFILE),1);
af->v = &vnode_raw;
raw_popen(af,command,type);
af->image_sectorsize = 512; // default
af->openflags = O_RDONLY;
af->fname = strdup(command);
return af;
}
AFFILE *af_open(const char *filename,int flags,int mode)
{
if(!aff_initialized) af_initialize();
if(flags & O_WRONLY){
errno = EINVAL;
return 0; // this flag not supported
}
/* Figure out it's format, then hand off to the correct subsystem. */
for(int i = 0; af_vnode_array[i]; i++){
/* Check to see if the implementation identifies the file */
if( (*af_vnode_array[i]->identify)(filename)==1 ){
return af_open_with(filename,flags,mode,af_vnode_array[i]);
}
}
return 0; // can't figure it out.
}
AFFILE *af_open(const char *filename,int flags,int mode)
{
if(!aff_initialized) af_initialize();
if(flags & O_WRONLY){
errno = EINVAL;
return 0; // this flag not supported
}
int exists = (flags & O_CREAT) ? 0 : 1; // file must exist if O_CREAT not specified
/* Figure out it's format, then hand off to the correct subsystem. */
for(int i = 0; af_vnode_array[i]; i++){
/* Check to see if the implementation identifies the file */
if( (*af_vnode_array[i]->identify)(filename,exists)==1 ){
AFFILE *af = af_open_with(filename,flags,mode,af_vnode_array[i]);
return af;
}
}
errno = EINVAL;
if(exists) errno = ENOENT;
return 0; // can't figure it out; must be an invalid extension
}
