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some more internall structure changes

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This commit is contained in:
Werner Koch 1998-06-16 15:13:28 +00:00
parent 6e1ca6b80f
commit e6ac5acbbf
39 changed files with 814 additions and 400 deletions
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62
cipher/dynload.c
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@ -22,7 +22,9 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#ifdef HAVE_DL_DLOPEN
#include <dlfcn.h>
#endif
#include "util.h"
#include "cipher.h"
#include "dynload.h"
@ -86,6 +88,7 @@ register_cipher_extension( const char *fname )
static int
load_extension( EXTLIST el )
{
#ifdef USE_DYNAMIC_LINKING
char **name;
void *sym;
const char *err;
@ -143,11 +146,68 @@ load_extension( EXTLIST el )
el->handle = NULL;
}
el->failed = 1;
#endif /*USE_DYNAMIC_LINKING*/
return -1;
}
int
enum_gnupgext_digests( void **enum_context,
int *algo,
const char *(**r_get_info)( int, size_t*,byte**, int*, int*,
void (**)(void*),
void (**)(void*,byte*,size_t),
void (**)(void*),byte *(**)(void*)) )
{
EXTLIST r;
ENUMCONTEXT *ctx;
if( !*enum_context ) { /* init context */
ctx = m_alloc_clear( sizeof( *ctx ) );
ctx->r = extensions;
*enum_context = ctx;
}
else if( !algo ) { /* release the context */
m_free(*enum_context);
*enum_context = NULL;
return 0;
}
else
ctx = *enum_context;
for( r = ctx->r; r; r = r->next ) {
int class, vers;
if( r->failed )
continue;
if( !r->handle && load_extension(r) )
continue;
/* get a digest info function */
if( ctx->sym )
goto inner_loop;
while( (ctx->sym = (*r->enumfunc)(10, &ctx->seq1, &class, &vers)) ) {
void *sym;
/* must check class because enumfunc may be wrong coded */
if( vers != 1 || class != 10 )
continue;
inner_loop:
*r_get_info = ctx->sym;
while( (sym = (*r->enumfunc)(11, &ctx->seq2, &class, &vers)) ) {
if( vers != 1 || class != 11 )
continue;
*algo = *(int*)sym;
ctx->r = r;
return 1;
}
ctx->seq2 = 0;
}
ctx->seq1 = 0;
}
ctx->r = r;
return 0;
}
const char *
enum_gnupgext_ciphers( void **enum_context, int *algo,
size_t *keylen, size_t *blocksize, size_t *contextsize,