diff options
Diffstat (limited to 'crypto/openssl/crypto/dso/dso_lib.c')
| -rw-r--r-- | crypto/openssl/crypto/dso/dso_lib.c | 179 |
1 files changed, 156 insertions, 23 deletions
diff --git a/crypto/openssl/crypto/dso/dso_lib.c b/crypto/openssl/crypto/dso/dso_lib.c index acd1666..556069b 100644 --- a/crypto/openssl/crypto/dso/dso_lib.c +++ b/crypto/openssl/crypto/dso/dso_lib.c @@ -108,7 +108,7 @@ DSO *DSO_new_method(DSO_METHOD *meth) } memset(ret, 0, sizeof(DSO)); ret->meth_data = sk_new_null(); - if((ret->meth_data = sk_new_null()) == NULL) + if(ret->meth_data == NULL) { /* sk_new doesn't generate any errors so we do */ DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE); @@ -164,6 +164,10 @@ int DSO_free(DSO *dso) } sk_free(dso->meth_data); + if(dso->filename != NULL) + OPENSSL_free(dso->filename); + if(dso->loaded_filename != NULL) + OPENSSL_free(dso->loaded_filename); OPENSSL_free(dso); return(1); @@ -175,11 +179,11 @@ int DSO_flags(DSO *dso) } -int DSO_up(DSO *dso) +int DSO_up_ref(DSO *dso) { if (dso == NULL) { - DSOerr(DSO_F_DSO_UP,ERR_R_PASSED_NULL_PARAMETER); + DSOerr(DSO_F_DSO_UP_REF,ERR_R_PASSED_NULL_PARAMETER); return(0); } @@ -192,48 +196,60 @@ DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags) DSO *ret; int allocated = 0; - if(filename == NULL) - { - DSOerr(DSO_F_DSO_LOAD,ERR_R_PASSED_NULL_PARAMETER); - return(NULL); - } if(dso == NULL) { ret = DSO_new_method(meth); if(ret == NULL) { DSOerr(DSO_F_DSO_LOAD,ERR_R_MALLOC_FAILURE); - return(NULL); + goto err; } allocated = 1; + /* Pass the provided flags to the new DSO object */ + if(DSO_ctrl(ret, DSO_CTRL_SET_FLAGS, flags, NULL) < 0) + { + DSOerr(DSO_F_DSO_LOAD,DSO_R_CTRL_FAILED); + goto err; + } } else ret = dso; - /* Bleurgh ... have to check for negative return values for - * errors. <grimace> */ - if(DSO_ctrl(ret, DSO_CTRL_SET_FLAGS, flags, NULL) < 0) + /* Don't load if we're currently already loaded */ + if(ret->filename != NULL) { - DSOerr(DSO_F_DSO_LOAD,DSO_R_CTRL_FAILED); - if(allocated) - DSO_free(ret); - return(NULL); + DSOerr(DSO_F_DSO_LOAD,DSO_R_DSO_ALREADY_LOADED); + goto err; + } + /* filename can only be NULL if we were passed a dso that already has + * one set. */ + if(filename != NULL) + if(!DSO_set_filename(ret, filename)) + { + DSOerr(DSO_F_DSO_LOAD,DSO_R_SET_FILENAME_FAILED); + goto err; + } + filename = ret->filename; + if(filename == NULL) + { + DSOerr(DSO_F_DSO_LOAD,DSO_R_NO_FILENAME); + goto err; } if(ret->meth->dso_load == NULL) { DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED); - if(allocated) - DSO_free(ret); - return(NULL); + goto err; } - if(!ret->meth->dso_load(ret, filename)) + if(!ret->meth->dso_load(ret)) { DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED); - if(allocated) - DSO_free(ret); - return(NULL); + goto err; } /* Load succeeded */ return(ret); +err: + if(allocated) + DSO_free(ret); + return(NULL); } void *DSO_bind_var(DSO *dso, const char *symname) @@ -297,6 +313,22 @@ long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg) DSOerr(DSO_F_DSO_CTRL,ERR_R_PASSED_NULL_PARAMETER); return(-1); } + /* We should intercept certain generic commands and only pass control + * to the method-specific ctrl() function if it's something we don't + * handle. */ + switch(cmd) + { + case DSO_CTRL_GET_FLAGS: + return dso->flags; + case DSO_CTRL_SET_FLAGS: + dso->flags = (int)larg; + return(0); + case DSO_CTRL_OR_FLAGS: + dso->flags |= (int)larg; + return(0); + default: + break; + } if((dso->meth == NULL) || (dso->meth->dso_ctrl == NULL)) { DSOerr(DSO_F_DSO_CTRL,DSO_R_UNSUPPORTED); @@ -304,3 +336,104 @@ long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg) } return(dso->meth->dso_ctrl(dso,cmd,larg,parg)); } + +int DSO_set_name_converter(DSO *dso, DSO_NAME_CONVERTER_FUNC cb, + DSO_NAME_CONVERTER_FUNC *oldcb) + { + if(dso == NULL) + { + DSOerr(DSO_F_DSO_SET_NAME_CONVERTER, + ERR_R_PASSED_NULL_PARAMETER); + return(0); + } + if(oldcb) + *oldcb = dso->name_converter; + dso->name_converter = cb; + return(1); + } + +const char *DSO_get_filename(DSO *dso) + { + if(dso == NULL) + { + DSOerr(DSO_F_DSO_GET_FILENAME,ERR_R_PASSED_NULL_PARAMETER); + return(NULL); + } + return(dso->filename); + } + +int DSO_set_filename(DSO *dso, const char *filename) + { + char *copied; + + if((dso == NULL) || (filename == NULL)) + { + DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_PASSED_NULL_PARAMETER); + return(0); + } + if(dso->loaded_filename) + { + DSOerr(DSO_F_DSO_SET_FILENAME,DSO_R_DSO_ALREADY_LOADED); + return(0); + } + /* We'll duplicate filename */ + copied = OPENSSL_malloc(strlen(filename) + 1); + if(copied == NULL) + { + DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_MALLOC_FAILURE); + return(0); + } + strcpy(copied, filename); + if(dso->filename) + OPENSSL_free(dso->filename); + dso->filename = copied; + return(1); + } + +char *DSO_convert_filename(DSO *dso, const char *filename) + { + char *result = NULL; + + if(dso == NULL) + { + DSOerr(DSO_F_DSO_CONVERT_FILENAME,ERR_R_PASSED_NULL_PARAMETER); + return(NULL); + } + if(filename == NULL) + filename = dso->filename; + if(filename == NULL) + { + DSOerr(DSO_F_DSO_CONVERT_FILENAME,DSO_R_NO_FILENAME); + return(NULL); + } + if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0) + { + if(dso->name_converter != NULL) + result = dso->name_converter(dso, filename); + else if(dso->meth->dso_name_converter != NULL) + result = dso->meth->dso_name_converter(dso, filename); + } + if(result == NULL) + { + result = OPENSSL_malloc(strlen(filename) + 1); + if(result == NULL) + { + DSOerr(DSO_F_DSO_CONVERT_FILENAME, + ERR_R_MALLOC_FAILURE); + return(NULL); + } + strcpy(result, filename); + } + return(result); + } + +const char *DSO_get_loaded_filename(DSO *dso) + { + if(dso == NULL) + { + DSOerr(DSO_F_DSO_GET_LOADED_FILENAME, + ERR_R_PASSED_NULL_PARAMETER); + return(NULL); + } + return(dso->loaded_filename); + } |
