diff options
Diffstat (limited to 'openssl/crypto/dso/dso_vms.c')
| -rw-r--r-- | openssl/crypto/dso/dso_vms.c | 504 |
1 files changed, 504 insertions, 0 deletions
diff --git a/openssl/crypto/dso/dso_vms.c b/openssl/crypto/dso/dso_vms.c new file mode 100644 index 000000000..2c434ee8a --- /dev/null +++ b/openssl/crypto/dso/dso_vms.c @@ -0,0 +1,504 @@ +/* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */ +/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include "cryptlib.h" +#include <openssl/dso.h> +#ifdef OPENSSL_SYS_VMS +#pragma message disable DOLLARID +#include <rms.h> +#include <lib$routines.h> +#include <stsdef.h> +#include <descrip.h> +#include <starlet.h> +#endif + +#ifndef OPENSSL_SYS_VMS +DSO_METHOD *DSO_METHOD_vms(void) + { + return NULL; + } +#else +#pragma message disable DOLLARID + +static int vms_load(DSO *dso); +static int vms_unload(DSO *dso); +static void *vms_bind_var(DSO *dso, const char *symname); +static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname); +#if 0 +static int vms_unbind_var(DSO *dso, char *symname, void *symptr); +static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr); +static int vms_init(DSO *dso); +static int vms_finish(DSO *dso); +static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg); +#endif +static char *vms_name_converter(DSO *dso, const char *filename); +static char *vms_merger(DSO *dso, const char *filespec1, + const char *filespec2); + +static DSO_METHOD dso_meth_vms = { + "OpenSSL 'VMS' shared library method", + vms_load, + NULL, /* unload */ + vms_bind_var, + vms_bind_func, +/* For now, "unbind" doesn't exist */ +#if 0 + NULL, /* unbind_var */ + NULL, /* unbind_func */ +#endif + NULL, /* ctrl */ + vms_name_converter, + vms_merger, + NULL, /* init */ + NULL /* finish */ + }; + +/* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends + * on the reference to the file name being the same for all calls regarding + * one shared image, so we'll just store it in an instance of the following + * structure and put a pointer to that instance in the meth_data stack. + */ +typedef struct dso_internal_st + { + /* This should contain the name only, no directory, + * no extension, nothing but a name. */ + struct dsc$descriptor_s filename_dsc; + char filename[FILENAME_MAX+1]; + /* This contains whatever is not in filename, if needed. + * Normally not defined. */ + struct dsc$descriptor_s imagename_dsc; + char imagename[FILENAME_MAX+1]; + } DSO_VMS_INTERNAL; + + +DSO_METHOD *DSO_METHOD_vms(void) + { + return(&dso_meth_vms); + } + +static int vms_load(DSO *dso) + { + void *ptr = NULL; + /* See applicable comments in dso_dl.c */ + char *filename = DSO_convert_filename(dso, NULL); + DSO_VMS_INTERNAL *p; + const char *sp1, *sp2; /* Search result */ + + if(filename == NULL) + { + DSOerr(DSO_F_VMS_LOAD,DSO_R_NO_FILENAME); + goto err; + } + + /* A file specification may look like this: + * + * node::dev:[dir-spec]name.type;ver + * + * or (for compatibility with TOPS-20): + * + * node::dev:<dir-spec>name.type;ver + * + * and the dir-spec uses '.' as separator. Also, a dir-spec + * may consist of several parts, with mixed use of [] and <>: + * + * [dir1.]<dir2> + * + * We need to split the file specification into the name and + * the rest (both before and after the name itself). + */ + /* Start with trying to find the end of a dir-spec, and save the + position of the byte after in sp1 */ + sp1 = strrchr(filename, ']'); + sp2 = strrchr(filename, '>'); + if (sp1 == NULL) sp1 = sp2; + if (sp2 != NULL && sp2 > sp1) sp1 = sp2; + if (sp1 == NULL) sp1 = strrchr(filename, ':'); + if (sp1 == NULL) + sp1 = filename; + else + sp1++; /* The byte after the found character */ + /* Now, let's see if there's a type, and save the position in sp2 */ + sp2 = strchr(sp1, '.'); + /* If we found it, that's where we'll cut. Otherwise, look for a + version number and save the position in sp2 */ + if (sp2 == NULL) sp2 = strchr(sp1, ';'); + /* If there was still nothing to find, set sp2 to point at the end of + the string */ + if (sp2 == NULL) sp2 = sp1 + strlen(sp1); + + /* Check that we won't get buffer overflows */ + if (sp2 - sp1 > FILENAME_MAX + || (sp1 - filename) + strlen(sp2) > FILENAME_MAX) + { + DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG); + goto err; + } + + p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL)); + if(p == NULL) + { + DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE); + goto err; + } + + strncpy(p->filename, sp1, sp2-sp1); + p->filename[sp2-sp1] = '\0'; + + strncpy(p->imagename, filename, sp1-filename); + p->imagename[sp1-filename] = '\0'; + strcat(p->imagename, sp2); + + p->filename_dsc.dsc$w_length = strlen(p->filename); + p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; + p->filename_dsc.dsc$b_class = DSC$K_CLASS_S; + p->filename_dsc.dsc$a_pointer = p->filename; + p->imagename_dsc.dsc$w_length = strlen(p->imagename); + p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; + p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S; + p->imagename_dsc.dsc$a_pointer = p->imagename; + + if(!sk_push(dso->meth_data, (char *)p)) + { + DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR); + goto err; + } + + /* Success (for now, we lie. We actually do not know...) */ + dso->loaded_filename = filename; + return(1); +err: + /* Cleanup! */ + if(p != NULL) + OPENSSL_free(p); + if(filename != NULL) + OPENSSL_free(filename); + return(0); + } + +/* Note that this doesn't actually unload the shared image, as there is no + * such thing in VMS. Next time it get loaded again, a new copy will + * actually be loaded. + */ +static int vms_unload(DSO *dso) + { + DSO_VMS_INTERNAL *p; + if(dso == NULL) + { + DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER); + return(0); + } + if(sk_num(dso->meth_data) < 1) + return(1); + p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data); + if(p == NULL) + { + DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE); + return(0); + } + /* Cleanup */ + OPENSSL_free(p); + return(1); + } + +/* We must do this in a separate function because of the way the exception + handler works (it makes this function return */ +static int do_find_symbol(DSO_VMS_INTERNAL *ptr, + struct dsc$descriptor_s *symname_dsc, void **sym, + unsigned long flags) + { + /* Make sure that signals are caught and returned instead of + aborting the program. The exception handler gets unestablished + automatically on return from this function. */ + lib$establish(lib$sig_to_ret); + + if(ptr->imagename_dsc.dsc$w_length) + return lib$find_image_symbol(&ptr->filename_dsc, + symname_dsc, sym, + &ptr->imagename_dsc, flags); + else + return lib$find_image_symbol(&ptr->filename_dsc, + symname_dsc, sym, + 0, flags); + } + +void vms_bind_sym(DSO *dso, const char *symname, void **sym) + { + DSO_VMS_INTERNAL *ptr; + int status; +#if 0 + int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't + defined in VMS older than 7.0 or so */ +#else + int flags = 0; +#endif + struct dsc$descriptor_s symname_dsc; + *sym = NULL; + + symname_dsc.dsc$w_length = strlen(symname); + symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T; + symname_dsc.dsc$b_class = DSC$K_CLASS_S; + symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */ + + if((dso == NULL) || (symname == NULL)) + { + DSOerr(DSO_F_VMS_BIND_SYM,ERR_R_PASSED_NULL_PARAMETER); + return; + } + if(sk_num(dso->meth_data) < 1) + { + DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_STACK_ERROR); + return; + } + ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data, + sk_num(dso->meth_data) - 1); + if(ptr == NULL) + { + DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_NULL_HANDLE); + return; + } + + if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0; + + status = do_find_symbol(ptr, &symname_dsc, sym, flags); + + if(!$VMS_STATUS_SUCCESS(status)) + { + unsigned short length; + char errstring[257]; + struct dsc$descriptor_s errstring_dsc; + + errstring_dsc.dsc$w_length = sizeof(errstring); + errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T; + errstring_dsc.dsc$b_class = DSC$K_CLASS_S; + errstring_dsc.dsc$a_pointer = errstring; + + *sym = NULL; + + status = sys$getmsg(status, &length, &errstring_dsc, 1, 0); + + if (!$VMS_STATUS_SUCCESS(status)) + lib$signal(status); /* This is really bad. Abort! */ + else + { + errstring[length] = '\0'; + + DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_SYM_FAILURE); + if (ptr->imagename_dsc.dsc$w_length) + ERR_add_error_data(9, + "Symbol ", symname, + " in ", ptr->filename, + " (", ptr->imagename, ")", + ": ", errstring); + else + ERR_add_error_data(6, + "Symbol ", symname, + " in ", ptr->filename, + ": ", errstring); + } + return; + } + return; + } + +static void *vms_bind_var(DSO *dso, const char *symname) + { + void *sym = 0; + vms_bind_sym(dso, symname, &sym); + return sym; + } + +static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname) + { + DSO_FUNC_TYPE sym = 0; + vms_bind_sym(dso, symname, (void **)&sym); + return sym; + } + +static char *vms_merger(DSO *dso, const char *filespec1, const char *filespec2) + { + int status; + int filespec1len, filespec2len; + struct FAB fab; +#ifdef NAML$C_MAXRSS + struct NAML nam; + char esa[NAML$C_MAXRSS]; +#else + struct NAM nam; + char esa[NAM$C_MAXRSS]; +#endif + char *merged; + + if (!filespec1) filespec1 = ""; + if (!filespec2) filespec2 = ""; + filespec1len = strlen(filespec1); + filespec2len = strlen(filespec2); + + fab = cc$rms_fab; +#ifdef NAML$C_MAXRSS + nam = cc$rms_naml; +#else + nam = cc$rms_nam; +#endif + + fab.fab$l_fna = (char *)filespec1; + fab.fab$b_fns = filespec1len; + fab.fab$l_dna = (char *)filespec2; + fab.fab$b_dns = filespec2len; +#ifdef NAML$C_MAXRSS + if (filespec1len > NAM$C_MAXRSS) + { + fab.fab$l_fna = 0; + fab.fab$b_fns = 0; + nam.naml$l_long_filename = (char *)filespec1; + nam.naml$l_long_filename_size = filespec1len; + } + if (filespec2len > NAM$C_MAXRSS) + { + fab.fab$l_dna = 0; + fab.fab$b_dns = 0; + nam.naml$l_long_defname = (char *)filespec2; + nam.naml$l_long_defname_size = filespec2len; + } + nam.naml$l_esa = esa; + nam.naml$b_ess = NAM$C_MAXRSS; + nam.naml$l_long_expand = esa; + nam.naml$l_long_expand_alloc = sizeof(esa); + nam.naml$b_nop = NAM$M_SYNCHK | NAM$M_PWD; + nam.naml$v_no_short_upcase = 1; + fab.fab$l_naml = &nam; +#else + nam.nam$l_esa = esa; + nam.nam$b_ess = NAM$C_MAXRSS; + nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_PWD; + fab.fab$l_nam = &nam; +#endif + + status = sys$parse(&fab, 0, 0); + + if(!$VMS_STATUS_SUCCESS(status)) + { + unsigned short length; + char errstring[257]; + struct dsc$descriptor_s errstring_dsc; + + errstring_dsc.dsc$w_length = sizeof(errstring); + errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T; + errstring_dsc.dsc$b_class = DSC$K_CLASS_S; + errstring_dsc.dsc$a_pointer = errstring; + + status = sys$getmsg(status, &length, &errstring_dsc, 1, 0); + + if (!$VMS_STATUS_SUCCESS(status)) + lib$signal(status); /* This is really bad. Abort! */ + else + { + errstring[length] = '\0'; + + DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE); + ERR_add_error_data(7, + "filespec \"", filespec1, "\", ", + "defaults \"", filespec2, "\": ", + errstring); + } + return(NULL); + } +#ifdef NAML$C_MAXRSS + if (nam.naml$l_long_expand_size) + { + merged = OPENSSL_malloc(nam.naml$l_long_expand_size + 1); + if(!merged) + goto malloc_err; + strncpy(merged, nam.naml$l_long_expand, + nam.naml$l_long_expand_size); + merged[nam.naml$l_long_expand_size] = '\0'; + } + else + { + merged = OPENSSL_malloc(nam.naml$b_esl + 1); + if(!merged) + goto malloc_err; + strncpy(merged, nam.naml$l_esa, + nam.naml$b_esl); + merged[nam.naml$b_esl] = '\0'; + } +#else + merged = OPENSSL_malloc(nam.nam$b_esl + 1); + if(!merged) + goto malloc_err; + strncpy(merged, nam.nam$l_esa, + nam.nam$b_esl); + merged[nam.nam$b_esl] = '\0'; +#endif + return(merged); + malloc_err: + DSOerr(DSO_F_VMS_MERGER, + ERR_R_MALLOC_FAILURE); + } + +static char *vms_name_converter(DSO *dso, const char *filename) + { + int len = strlen(filename); + char *not_translated = OPENSSL_malloc(len+1); + strcpy(not_translated,filename); + return(not_translated); + } + +#endif /* OPENSSL_SYS_VMS */ |