Don't link shlibloadtest against libcrypto

The whole point of shlibloadtest is to test dynamically loading and
unloading the library. If we link shlibloadtest against libcrypto then that
might mask potential issues.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7647)

1 files changed, 90 insertions, 49 deletions

diff --git a/test/shlibloadtest.c b/test/shlibloadtest.c
index dcb19752e8..9655456740 100644
--- a/test/shlibloadtest.c
+++ b/test/shlibloadtest.c
@@ -14,7 +14,6 @@
 #include <openssl/ssl.h>
 #include <openssl/ossl_typ.h>
 #include "internal/dso_conf.h"
-#include "testutil.h"
 
 typedef void DSO;
 
@@ -122,57 +121,70 @@ static int test_lib(void)
     switch (test_type) {
     case JUST_CRYPTO:
     case DSO_REFTEST:
-        if (!TEST_true(shlib_load(path_crypto, &cryptolib)))
-            goto end;
-        break;
     case CRYPTO_FIRST:
-        if (!TEST_true(shlib_load(path_crypto, &cryptolib))
-                || !TEST_true(shlib_load(path_ssl, &ssllib)))
+        if (!shlib_load(path_crypto, &cryptolib)) {
+            fprintf(stderr, "Failed to load libcrypto\n");
             goto end;
-        break;
+        }
+        if (test_type != CRYPTO_FIRST)
+            break;
+        /* Fall through */
+
     case SSL_FIRST:
-        if (!TEST_true(shlib_load(path_ssl, &ssllib))
-                || !TEST_true(shlib_load(path_crypto, &cryptolib)))
+        if (!shlib_load(path_ssl, &ssllib)) {
+            fprintf(stderr, "Failed to load libssl\n");
+            goto end;
+        }
+        if (test_type != SSL_FIRST)
+            break;
+        if (!shlib_load(path_crypto, &cryptolib)) {
+            fprintf(stderr, "Failed to load libcrypto\n");
             goto end;
+        }
         break;
     }
 
     if (test_type != JUST_CRYPTO && test_type != DSO_REFTEST) {
-        if (!TEST_true(shlib_sym(ssllib, "TLS_method", &symbols[0].sym))
-                || !TEST_true(shlib_sym(ssllib, "SSL_CTX_new", &symbols[1].sym))
-                || !TEST_true(shlib_sym(ssllib, "SSL_CTX_free", &symbols[2].sym)))
+        if (!shlib_sym(ssllib, "TLS_method", &symbols[0].sym)
+                || !shlib_sym(ssllib, "SSL_CTX_new", &symbols[1].sym)
+                || !shlib_sym(ssllib, "SSL_CTX_free", &symbols[2].sym)) {
+            fprintf(stderr, "Failed to load libssl symbols\n");
             goto end;
+        }
         myTLS_method = (TLS_method_t)symbols[0].func;
         mySSL_CTX_new = (SSL_CTX_new_t)symbols[1].func;
         mySSL_CTX_free = (SSL_CTX_free_t)symbols[2].func;
-        if (!TEST_ptr(ctx = mySSL_CTX_new(myTLS_method())))
+        ctx = mySSL_CTX_new(myTLS_method());
+        if (ctx == NULL) {
+            fprintf(stderr, "Failed to create SSL_CTX\n");
             goto end;
+        }
         mySSL_CTX_free(ctx);
     }
 
-    if (!TEST_true(shlib_sym(cryptolib, "ERR_get_error", &symbols[0].sym))
-           || !TEST_true(shlib_sym(cryptolib, "OPENSSL_version_major",
-                                   &symbols[1].sym))
-           || !TEST_true(shlib_sym(cryptolib, "OPENSSL_version_minor",
-                                   &symbols[2].sym))
-           || !TEST_true(shlib_sym(cryptolib, "OPENSSL_version_patch",
-                                   &symbols[3].sym)))
+    if (!shlib_sym(cryptolib, "ERR_get_error", &symbols[0].sym)
+           || !shlib_sym(cryptolib, "OPENSSL_version_major", &symbols[1].sym)
+           || !shlib_sym(cryptolib, "OPENSSL_version_minor", &symbols[2].sym)
+           || !shlib_sym(cryptolib, "OPENSSL_version_patch", &symbols[3].sym)) {
+        fprintf(stderr, "Failed to load libcrypto symbols\n");
         goto end;
+    }
     myERR_get_error = (ERR_get_error_t)symbols[0].func;
-    if (!TEST_int_eq(myERR_get_error(), 0))
+    if (myERR_get_error() != 0) {
+        fprintf(stderr, "Unexpected ERR_get_error() response\n");
         goto end;
+    }
 
-    /* Make sure the libraries are a compatible version */
+    /* Library and header version should be identical in this test */
     myOPENSSL_version_major = (OPENSSL_version_major_t)symbols[1].func;
     myOPENSSL_version_minor = (OPENSSL_version_minor_t)symbols[2].func;
     myOPENSSL_version_patch = (OPENSSL_version_patch_t)symbols[3].func;
-    if (!TEST_int_eq(myOPENSSL_version_major(), OPENSSL_VERSION_MAJOR))
-        goto end;
-    if (!TEST_int_ge(myOPENSSL_version_minor(), OPENSSL_VERSION_MINOR))
-        goto end;
-    if (myOPENSSL_version_minor() == OPENSSL_VERSION_MINOR
-        && !TEST_int_ge(myOPENSSL_version_patch(), OPENSSL_VERSION_PATCH))
+    if (myOPENSSL_version_major() != OPENSSL_VERSION_MAJOR
+            || myOPENSSL_version_minor() != OPENSSL_VERSION_MINOR
+            || myOPENSSL_version_patch() != OPENSSL_VERSION_PATCH) {
+        fprintf(stderr, "Invalid library version number\n");
         goto end;
+    }
 
     if (test_type == DSO_REFTEST) {
 # ifdef DSO_DLFCN
@@ -187,10 +199,11 @@ static int test_lib(void)
          * will always return an error, because DSO_pathbyaddr() is not
          * implemented there.
          */
-        if (!TEST_true(shlib_sym(cryptolib, "DSO_dsobyaddr", &symbols[0].sym))
-                || !TEST_true(shlib_sym(cryptolib, "DSO_free",
-                                        &symbols[1].sym)))
+        if (!shlib_sym(cryptolib, "DSO_dsobyaddr", &symbols[0].sym)
+                || !shlib_sym(cryptolib, "DSO_free", &symbols[1].sym)) {
+            fprintf(stderr, "Unable to load DSO symbols\n");
             goto end;
+        }
 
         myDSO_dsobyaddr = (DSO_dsobyaddr_t)symbols[0].func;
         myDSO_free = (DSO_free_t)symbols[1].func;
@@ -198,8 +211,11 @@ static int test_lib(void)
         {
             DSO *hndl;
             /* use known symbol from crypto module */
-            if (!TEST_ptr(hndl = myDSO_dsobyaddr((void (*)(void))ERR_get_error, 0)))
+            hndl = myDSO_dsobyaddr((void (*)(void))myERR_get_error, 0);
+            if (hndl == NULL) {
+                fprintf(stderr, "DSO_dsobyaddr() failed\n");
                 goto end;
+            }
             myDSO_free(hndl);
         }
 # endif /* DSO_DLFCN */
@@ -208,18 +224,27 @@ static int test_lib(void)
     switch (test_type) {
     case JUST_CRYPTO:
     case DSO_REFTEST:
-        if (!TEST_true(shlib_close(cryptolib)))
-            goto end;
-        break;
     case CRYPTO_FIRST:
-        if (!TEST_true(shlib_close(cryptolib))
-                || !TEST_true(shlib_close(ssllib)))
+        if (!shlib_close(cryptolib)) {
+            fprintf(stderr, "Failed to close libcrypto\n");
             goto end;
-        break;
+        }
+        if (test_type != CRYPTO_FIRST)
+            break;
+        /* Fall through */
+
     case SSL_FIRST:
-        if (!TEST_true(shlib_close(ssllib))
-                || !TEST_true(shlib_close(cryptolib)))
+        if (test_type == CRYPTO_FIRST && !shlib_close(ssllib)) {
+            fprintf(stderr, "Failed to close libssl\n");
+            goto end;
+        }
+        if (test_type != SSL_FIRST)
+            break;
+
+        if (!shlib_close(cryptolib)) {
+            fprintf(stderr, "Failed to close libcrypto\n");
             goto end;
+        }
         break;
     }
 
@@ -230,9 +255,21 @@ end:
 #endif
 
 
-int setup_tests(void)
+/*
+ * shlibloadtest should not use the normal test framework because we don't want
+ * it to link against libcrypto (which the framework uses). The point of the
+ * test is to check dynamic loading and unloading of libcrypto/libssl.
+ */
+int main(int argc, char *argv[])
 {
-    const char *p = test_get_argument(0);
+    const char *p;
+
+    if (argc != 4) {
+        fprintf(stderr, "Incorrect number of arguments");
+        return 1;
+    }
+
+    p = argv[1];
 
     if (strcmp(p, "-crypto_first") == 0) {
         test_type = CRYPTO_FIRST;
@@ -243,15 +280,19 @@ int setup_tests(void)
     } else if (strcmp(p, "-dso_ref") == 0) {
         test_type = DSO_REFTEST;
     } else {
-        TEST_error("Unrecognised argument");
-        return 0;
+        fprintf(stderr, "Unrecognised argument");
+        return 1;
+    }
+    path_crypto = argv[2];
+    path_ssl = argv[3];
+    if (path_crypto == NULL || path_ssl == NULL) {
+        fprintf(stderr, "Invalid libcrypto/libssl path\n");
+        return 1;
     }
-    if (!TEST_ptr(path_crypto = test_get_argument(1))
-            || !TEST_ptr(path_ssl = test_get_argument(2)))
-        return 0;
 
 #if defined(DSO_DLFCN) || defined(DSO_WIN32)
-    ADD_TEST(test_lib);
+    if (!test_lib())
+        return 1;
 #endif
-    return 1;
+    return 0;
 }