95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/****************************************************************
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* *
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* Copyright 2009, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_string.h"
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#include "gtm_limits.h"
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#include <dlfcn.h>
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#include "lv_val.h" /* needed for "fgncal.h" */
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#include "fgncal.h" /* needed for COPY_DLLERR_MSG() */
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#include "gtmmsg.h"
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#include "gtm_stdio.h"
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#include "gtm_stdlib.h"
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#include "real_len.h"
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#include "gtmcrypt.h"
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#ifndef GTM_DIST
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#define GTM_DIST "gtm_dist"
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#endif
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GBLREF char dl_err[MAX_ERRSTR_LEN];
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GBLREF int4 gbl_encryption_ecode;
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void gtmcrypt_entry()
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{
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char *libname, err_msg[MAX_ERRSTR_LEN];
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void_ptr_t handle;
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char_ptr_t err_str;
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char *gtmcryptlib_fname[] = {
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GTMCRYPT_INIT_FNAME,
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GTMCRYPT_CLOSE_FNAME,
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GTMCRYPT_HASH_GEN_FNAME,
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GTMCRYPT_ENCODE_FNAME,
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GTMCRYPT_DECODE_FNAME,
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GTMCRYPT_GETKEY_BY_NAME,
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GTMCRYPT_GETKEY_BY_HASH,
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GTMCRYPT_STRERROR
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};
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void **gtmcryptlib_fptr[] = {
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(void **)>mcrypt_init_fnptr,
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(void **)>mcrypt_close_fnptr,
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(void **)>mcrypt_hash_gen_fnptr,
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(void **)>mcrypt_encode_fnptr,
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(void **)>mcrypt_decode_fnptr,
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(void **)>mcrypt_getkey_by_name_fnptr,
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(void **)>mcrypt_getkey_by_hash_fnptr,
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(void **)>mcrypt_strerror_fnptr
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};
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int findx;
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int num_dlsyms = SIZEOF(gtmcryptlib_fptr) / SIZEOF(gtmcryptlib_fptr[0]); /* number of functions in library */
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void *fptr;
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char *gtm_dist_path;
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char libpath[GTM_PATH_MAX];
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error_def(ERR_CRYPTDLNOOPEN);
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error_def(ERR_GTMDISTUNDEF);
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if (NULL == (gtm_dist_path = getenv(GTM_DIST)))
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rts_error(VARLSTCNT(1) ERR_GTMDISTUNDEF);
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memset(libpath, 0, GTM_PATH_MAX);
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SNPRINTF(libpath, GTM_PATH_MAX, "%s/%s/%s", gtm_dist_path, "plugin", GTMCRYPT_LIBNAME);
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gbl_encryption_ecode = 0;
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handle = dlopen(libpath, GTMCRYPT_LIBFLAGS);
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if (NULL == handle)
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{
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COPY_DLLERR_MSG(err_str, dl_err);
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gbl_encryption_ecode = ERR_CRYPTDLNOOPEN; /* library initialization failed */
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return;
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}
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for(findx = 0; findx < num_dlsyms; ++findx)
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{
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fptr = (void *)dlsym(handle, gtmcryptlib_fname[findx]);
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if (NULL == fptr)
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{
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COPY_DLLERR_MSG(err_str, dl_err);
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gbl_encryption_ecode = ERR_CRYPTDLNOOPEN; /* library initialization failed */
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return;
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}
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*gtmcryptlib_fptr[findx] = fptr;
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}
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return;
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}
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