Allow soft-loading engines.

diff --git a/CHANGES b/CHANGES
index 5761f74d609d5b6b6bf36eceaaadd812ed42918a..8f8b369158df9f09c2cee4afb760976675affee1 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -22,6 +22,10 @@
      This work was sponsored by Logica.
      [Steve Henson]
 
+  *) Allow engines to be "soft loaded" - i.e. optionally don't die if
+     the load fails. Useful for distros.
+     [Ben Laurie and the FreeBSD team]
+
  Changes between 0.9.8g and 0.9.8h  [28 May 2008]
 
   *) Fix flaw if 'Server Key exchange message' is omitted from a TLS

diff --git a/Configure b/Configure
index 10e1d3dcf77429524a0dd8f72c2c4db1803ad7d8..f1bdb6559eb0ecb70c12664d71fbb6ccc5eff38a 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -512,6 +512,7 @@ my %table=(
 "darwin-ppc-cc","cc:-arch ppc -O3 -DB_ENDIAN::-D_REENTRANT:MACOSX:-Wl,-search_paths_first%:BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR::osx_ppc32.o::::::::::dlfcn:darwin-shared:-fPIC -fno-common:-arch ppc -dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
 "darwin64-ppc-cc","cc:-arch ppc64 -O3 -DB_ENDIAN::-D_REENTRANT:MACOSX:-Wl,-search_paths_first%:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR::osx_ppc64.o::::::::::dlfcn:darwin-shared:-fPIC -fno-common:-arch ppc64 -dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
 "darwin-i386-cc","cc:-arch i386 -O3 -fomit-frame-pointer -DL_ENDIAN::-D_REENTRANT:MACOSX:-Wl,-search_paths_first%:BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR:${no_asm}:dlfcn:darwin-shared:-fPIC -fno-common:-arch i386 -dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
+"debug-darwin-i386-cc","cc:-arch i386 -g3 -DL_ENDIAN::-D_REENTRANT:MACOSX:-Wl,-search_paths_first%:BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR:${no_asm}:dlfcn:darwin-shared:-fPIC -fno-common:-arch i386 -dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
 "darwin64-x86_64-cc","cc:-arch x86_64 -O3 -fomit-frame-pointer -DL_ENDIAN -DMD32_REG_T=int -Wall::-D_REENTRANT:MACOSX:-Wl,-search_paths_first%:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK BF_PTR2 DES_INT DES_UNROLL:${no_asm}:dlfcn:darwin-shared:-fPIC -fno-common:-arch x86_64 -dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
 "debug-darwin-ppc-cc","cc:-DBN_DEBUG -DREF_CHECK -DCONF_DEBUG -DCRYPTO_MDEBUG -DB_ENDIAN -g -Wall -O::-D_REENTRANT:MACOSX::BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR::osx_ppc32.o::::::::::dlfcn:darwin-shared:-fPIC -fno-common:-dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
 

diff --git a/apps/openssl.c b/apps/openssl.c
index 47aee5b7126224b0bba3a9708ccedf3f2e21eb35..ec25f990febb4d6ecd4fd125383b04ef36465f05 100644 (file)
--- a/apps/openssl.c
+++ b/apps/openssl.c
@@ -273,9 +273,21 @@ int main(int Argc, char *Argv[])
        i=NCONF_load(config,p,&errline);
        if (i == 0)
                {
-               NCONF_free(config);
-               config = NULL;
-               ERR_clear_error();
+               if (ERR_GET_REASON(ERR_peek_last_error())
+                   == CONF_R_NO_SUCH_FILE)
+                       {
+                       BIO_printf(bio_err,
+                                  "WARNING: can't open config file: %s\n",p);
+                       ERR_clear_error();
+                       NCONF_free(config);
+                       config = NULL;
+                       }
+               else
+                       {
+                       ERR_print_errors(bio_err);
+                       NCONF_free(config);
+                       exit(1);
+                       }
                }
 
        prog=prog_init();

diff --git a/crypto/engine/eng_cnf.c b/crypto/engine/eng_cnf.c
index a97e01e619ff024d7e3c45a52e2b98dee195aba6..8417ddaaef8b0606dd3b0c277ee26729d92a0cdf 100644 (file)
--- a/crypto/engine/eng_cnf.c
+++ b/crypto/engine/eng_cnf.c
@@ -98,6 +98,8 @@ static int int_engine_configure(char *name, char *value, const CONF *cnf)
        CONF_VALUE *ecmd;
        char *ctrlname, *ctrlvalue;
        ENGINE *e = NULL;
+        int soft = 0;
+
        name = skip_dot(name);
 #ifdef ENGINE_CONF_DEBUG
        fprintf(stderr, "Configuring engine %s\n", name);
@@ -125,6 +127,8 @@ static int int_engine_configure(char *name, char *value, const CONF *cnf)
                /* Override engine name to use */
                if (!strcmp(ctrlname, "engine_id"))
                        name = ctrlvalue;
+                else if (!strcmp(ctrlname, "soft_load"))
+                        soft = 1;
                /* Load a dynamic ENGINE */
                else if (!strcmp(ctrlname, "dynamic_path"))
                        {
@@ -147,6 +151,11 @@ static int int_engine_configure(char *name, char *value, const CONF *cnf)
                        if (!e)
                                {
                                e = ENGINE_by_id(name);
+                                if (!e && soft)
+                                        {
+                                        ERR_clear_error();
+                                        return 1;
+                                        }
                                if (!e)
                                        return 0;
                                }