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Split into smaller files.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1361 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
1997-03-12 07:32:43 +00:00
parent f6223a8d77
commit a23a6b2d09
1 changed files with 21 additions and 99 deletions
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120
lib/krb5/store.c
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@@ -2,113 +2,35 @@
RCSID("$Id$");
struct krb5_fd_storage{
int fd;
};
#define FD(S) (((struct krb5_fd_storage*)(S)->data)->fd)
struct krb5_mem_storage{
void *base;
size_t len;
void *ptr;
};
#define MEM(S) ((struct krb5_mem_storage*)((S)->data))
size_t
fd_fetch(krb5_storage *sp, void *data, size_t size)
{
return read(FD(sp), data, size);
}
size_t
fd_store(krb5_storage *sp, void *data, size_t size)
{
return write(FD(sp), data, size);
}
off_t
fd_seek(krb5_storage *sp, off_t offset, int whence)
{
return lseek(FD(sp), offset, whence);
}
size_t
mem_fetch(krb5_storage *sp, void *data, size_t size)
{
memmove(data, MEM(sp)->ptr, size);
sp->seek(sp, size, SEEK_CUR);
return size;
}
size_t
mem_store(krb5_storage *sp, void *data, size_t size)
{
memmove(MEM(sp)->ptr, data, size);
sp->seek(sp, size, SEEK_CUR);
return size;
}
off_t
mem_seek(krb5_storage *sp, off_t offset, int whence)
{
switch(whence){
case SEEK_SET:
if(offset > MEM(sp)->len)
offset = MEM(sp)->len;
if(offset < 0)
offset = 0;
MEM(sp)->ptr = (char*)(MEM(sp)->base) + offset;
break;
case SEEK_CUR:
sp->seek(sp,
(char *)MEM(sp)->ptr - (char *)MEM(sp)->base + offset,
SEEK_SET);
break;
case SEEK_END:
sp->seek(sp, MEM(sp)->len + offset, SEEK_SET);
default:
errno = EINVAL;
return -1;
}
return (char *)MEM(sp)->ptr - (char *)MEM(sp)->base;
}
krb5_storage *
krb5_storage_from_fd(int fd)
{
krb5_storage *sp = malloc(sizeof(krb5_storage));
sp->data = malloc(sizeof(struct krb5_fd_storage));
FD(sp) = fd;
sp->fetch = fd_fetch;
sp->store = fd_store;
sp->seek = fd_seek;
return sp;
}
krb5_storage *
krb5_storage_from_mem(void *buf, size_t len)
{
krb5_storage *sp = malloc(sizeof(krb5_storage));
sp->data = malloc(sizeof(struct krb5_mem_storage));
MEM(sp)->base = buf;
MEM(sp)->len = len;
MEM(sp)->ptr = buf;
sp->fetch = mem_fetch;
sp->store = mem_store;
sp->seek = mem_seek;
return sp;
}
krb5_error_code
krb5_storage_free(krb5_storage *sp)
{
if(sp->free)
(*sp->free)(sp);
free(sp->data);
free(sp);
return 0;
}
krb5_error_code
krb5_storage_to_data(krb5_storage *sp, krb5_data *data)
{
off_t pos;
size_t size;
pos = sp->seek(sp, 0, SEEK_CUR);
size = (size_t)sp->seek(sp, 0, SEEK_END);
data->length = size;
data->data = malloc(data->length);
if(data->data == NULL){
data->length = 0;
sp->seek(sp, pos, SEEK_SET);
return ENOMEM;
}
sp->seek(sp, 0, SEEK_SET);
sp->fetch(sp, data->data, data->length);
sp->seek(sp, pos, SEEK_SET);
return 0;
}
krb5_error_code
krb5_store_int32(krb5_storage *sp,