diff options
Diffstat (limited to '')
| -rw-r--r-- | cipher/dynload.c | 93 |
1 files changed, 91 insertions, 2 deletions
diff --git a/cipher/dynload.c b/cipher/dynload.c index ff40dafff..7278928f1 100644 --- a/cipher/dynload.c +++ b/cipher/dynload.c @@ -39,6 +39,7 @@ typedef struct ext_list { struct ext_list *next; + int internal; #ifdef HAVE_DL_DLOPEN void *handle; /* handle from dlopen() */ #else @@ -83,7 +84,7 @@ static int dld_available; void register_cipher_extension( const char *mainpgm, const char *fname ) { - EXTLIST r, el; + EXTLIST r, el, intex; char *p, *pe; #ifdef HAVE_DLD_DLD_LINK @@ -114,13 +115,53 @@ register_cipher_extension( const char *mainpgm, const char *fname ) el->hintstr = NULL; /* check that it is not already registered */ - for(r = extensions; r; r = r->next ) + intex = NULL; + for(r = extensions; r; r = r->next ) { + if( !compare_filenames(r->name, el->name) ) { + log_info("extension '%s' already registered\n", el->name ); + m_free(el); + return; + } + else if( r->internal ) + intex = r; + } + /* and register */ + /* we put them after the internal extension modules */ + /* this is so that the external modules do not get loaded */ + /* as soon as the internal modules are requested */ + if( intex ) { + el->next = intex->next; + intex->next = el; + } + else { + el->next = extensions; + extensions = el; + } +} + +void +register_internal_cipher_extension( + const char *module_id, + void * (*enumfunc)(int, int*, int*, int*) + ) +{ + EXTLIST r, el; + + el = m_alloc_clear( sizeof *el + strlen(module_id) ); + strcpy(el->name, module_id ); + el->internal = 1; + + /* check that it is not already registered */ + for(r = extensions; r; r = r->next ) { if( !compare_filenames(r->name, el->name) ) { log_info("extension '%s' already registered\n", el->name ); m_free(el); return; } + } /* and register */ + el->enumfunc = enumfunc; + el->handle = (void*)1; el->next = extensions; extensions = el; } @@ -455,3 +496,51 @@ enum_gnupgext_pubkeys( void **enum_context, int *algo, return NULL; } + +int (* +dynload_getfnc_gather_random())(byte*, size_t*, int) +{ + EXTLIST r; + void *sym; + + for( r = extensions; r; r = r->next ) { + int seq, class, vers; + + if( r->failed ) + continue; + if( !r->handle && load_extension(r) ) + continue; + seq = 0; + while( (sym = (*r->enumfunc)(40, &seq, &class, &vers)) ) { + if( vers != 1 || class != 40 ) + continue; + return (int (*)(byte*, size_t*, int))sym; + } + } + return NULL; +} + + +void (* +dynload_getfnc_fast_random_poll())( void (*)(const void*, size_t, int)) +{ + EXTLIST r; + void *sym; + + for( r = extensions; r; r = r->next ) { + int seq, class, vers; + + if( r->failed ) + continue; + if( !r->handle && load_extension(r) ) + continue; + seq = 0; + while( (sym = (*r->enumfunc)(41, &seq, &class, &vers)) ) { + if( vers != 1 || class != 41 ) + continue; + return (void (*)( void (*)(const void*, size_t, int)))sym; + } + } + return NULL; +} + |